FANUC Series 90-30 PLC. Installation and Hardware Manual (GFK-0356P)

Obsolete Product

a44681

SERIES 90-30

PROGRAMMER

ÎÎÎ

ÎÎÎÎÎ

ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎ

ÎÎÎÎÎÎÎÎ

ÎÎÎÎÎ

RS-485

RS-232

ÎÎÎÎÎ

CONVERTER

ÎÎÎÎÎÎÎÎÎ

ÎÎÎÎÎÎÎÎÎÎ

Figure D-3. Typical Configuration with Series 90-30 PLC

RS-232 Interface Pin Assignments

Pin assignments and signal definitions for the RS-232 interface are listed below.

Table D-1. RS-232 Interface for Converter

Signal Name

Function

I/O

Shield

Cable shield

Transmitted Data

Out

Received Data

RTS

Request To Send

Out

CTS

Clear To Send

No connection

Signal Ground

DCD

Data Carrier Detect

9/19

No connection

DTR

Data Terminal Ready

Out

21 to 25

No connection

D-4

Series 90-30 PLC Installation and Hardware Manual- October 1999

GFK-0356P

Obsolete Product

RS-422/RS-485 Interface Pin Assignments

Pin assignments and signal definitions for the RS-422/RS-485 interface are listed below.

Table D-2. RS-422/RS-485 Interface for Converter

Signal Name

Function

I/O

Cable Shield

DCD(A)

Differential Data Carrier Detect

Out

DCD(B)

Differential Data Carrier Detect

Out

ATCH/

Attach (used with HHP)

n/a

+5 VDC

Logic Power

RTS(A)

Differential Request To Send

Out

Signal Ground, 0V

CTS(B’)

Differential Clear To Send

Resistor Terminator

n/a

RD(A’)

Differential Receive Data

RD(B’)

Differential Receive Data

SD(A)

Differential Send Data

Out

SD(B)

Differential Send Data

Out

RTS(B)

Differential Request To Send

Out

CTS(A’)

Differential Clear To Send

GFK-0356P

Appendix D IC690ACC900 Converter

D-5

Obsolete Product

Logic Diagram

The following figure shows the logic diagram for the RS-422/RS-485 to RS-232 Converter.

RS-232/RS-485

a44539

CONVERTER

RS-232

RS-485

(IC690ACC900)

25-PIN

15-PIN

SHIELD

TERMINATOR

RESISTOR

120Ω

RD ( B’ )

RD ( A’ )

SD (B )

SD (A )

CTS ( B’ )

MODEM

RTS

CTS ( A’ )

RTS ( B )

CTS

RTS ( A )

DCD

DCD ( B )

DCD

DCD ( A )

LOGIC

POWER

DTR

ATTAC

ATCH/

Figure D-4. RS-422/RS-485 to RS-232 Converter Logic Diagram

D-6

Series 90-30 PLC Installation and Hardware Manual- October 1999

GFK-0356P

Obsolete Product

Jumper Configuration

There are three jumper locations on the converter board for selection of user options.

Each jumper position has three pins, as shown in the following illustration. These

jumper positions, labeled JP2, JP3, and JP4, are accessed by removing the square plastic

cover on the top of the converter. Configuration can be changed as required by

carefully removing one or more of the jumpers with a pair of needle nose pliers and

placing it on the desired pair of pins.

Refer to the description of these selectable jumper positions in the following table and

place the jumper on the selected pair of pins. The pin numbers are 1, 2, and 3. Default

jumper locations are indicated by a rectangle around the pins to be jumpered for each

position. The default pin numbers are 1 and 2.

a44680

ÎÎÎÎÎÎÎ

RS-422/RS485

ÎÎÎÎÎÎÎ

RS-232

ÎÎÎÎÎÎÎ

ÎÎÎ¹²

ÎÎÎ³

Figure D-5. Location of Jumpers for User Options

GFK-0356P

Appendix D IC690ACC900 Converter

D-7

Obsolete Product

Table D-3. Jumper Configuration for RS-422/RS-485 to RS-232 Converter

Jumper

Position

Label

Position

Description

JP2

DCD

1 2

Default position 1 and 2 is used when the device

communicating with the PLC does not supply the

Carrier Detect signal. JP2 forces the DCD signal

active on the RS-485 port.

1 2 3

Use jumper positions 2 and 3 if the device does

supply the Carrier Detect signal. This allows the

programming device to control DCD.

JP3

MODEM

1 2

Default position 1 and 2 is used when an attached

Modem does not require the Clear To Send (CTS)

signal. This allows the programming device to

control the RTS signal.

1 2 3

Jumper positions 2 and 3 are used when the

attached Modem does require the CTS signal (most

modems require this signal). Forces RTS to be

continually active.

JP4

ATTACH

1 2

Default position 1 and 2 is used for most

applications communicating with the PLC via a

serial programming device.

1 2 3

Jumper positions 2 and 3 are used if the device

communicating with the PLC is intended to

emulate the HHP protocol.

Refer to the documentation for your serial device for signal requirements.

D-8

Series 90-30 PLC Installation and Hardware Manual- October 1999

GFK-0356P

Obsolete Product

Example of Cable Configurations

Examples of cable configurations required when using the converter can be found in

Appendix C. Specifications for the converter are shown in the following table.

Table D-4. Specifications for IC690ACC900 Converter

Power Requirements:

Voltage

5 volts DC, +5%

Current

170 mA, ±5%

RS-422/RS-485 Interface Cables:

Maximum cable length

1000 feet(300m)

Cable Type:

6 feet (2m)

Cable type: Belden 9508, AWG #24 (0.22 mm²)

30 feet (10m)

Cable type: Belden 9309, AWG #22 (0.36 mm²)

≥30 feet, up to 1000 feet (300m)

Same cable as for 30 feet.

Connector Type

15-pin D-type Male Subminiature (both ends)

RS-232 Interface Cable:

Maximum cable length

50 feet (15m)

Up to 50 feet (15m)

Connector Type

25-pin D-type Female Subminiature (converter

end) 9-pin, 15-pin, or 25-pin (depending on

type of connector on your serial device) D-type

Female Subminiature (programming device

end)

Catalog numbers are provided as suggestions only. Any cable having the same

electrical characteristics is acceptable. It is strongly recommended that you use

stranded wire. Since it is sometimes hard to find a cable with the desired number of

twisted pairs (the Belden 9309 has an extra pair), you may end up with a cable with

extra pairs.

For distances over 10 feet, the +5 volt DC logic power source must be provided

externally by connecting an external power supply to the +5V and SG (0V)

connections at the converter end of the cable. The +5V pin at the PLC connector end of

the cable must not be connected to the cable. The +5V and SG connections from the

external power supply must be isolated from its own power line ground connection.

Ensure that there is no connection between the external supply and the PLC except

the SG cable connection.

GFK-0356P

Appendix D IC690ACC900 Converter

D-9

Appendix

E IC655CCM590 Isolated Repeater/Converter

section level 1

figure_ap level 1

(ObsoleteProduct)

NOTE: This product is no longer available. This appendix is for

reference by those already using this product. It has been replaced by

catalog number IC690ACC903 (see Appendix G for details).

This appendix describes how to use the Isolated Repeater/Converter (IC655CCM590) with

Series 90 PLCs. The following topics are covered in this appendix.

Description of the Isolated Repeater/Converter

System Configurations

Cable Diagrams

Note

The catalog number for the Isolated Repeater/Converter was previously

IC630CCM390.

Description of the Isolated Repeater/Conver ter

The Isolated Repeater/Converter (IC655CCM590) can be used for the following

purposes.

To provide ground isolation where a common ground cannot be established

between components.

To boost RS-422 signals for greater distance and more drops.

To convert signals from RS-232 to RS-422 or RS-422 to RS-232.

The figure on the next page shows the appearance of the unit and the location of

features that are of interest to the user.

GFK-0356P

E-1

Obsolete Product

(TOP VIEW)

a42418

ÎÎ

RS422

POWER

GE Fanuc

FUSE

CORD

115VAC

RS232C

230VAC

ISOLATED RS232

Î G

ADAPTOR UNIT

ÎÎ ÎÎÎ

POWER

ÎÎ

SWITCH

ÎÎ

POWER

CORD

FUSE

(BACK VIEW)

FUSE-1AMP

(SIDE VIEW)

Figure E-1. Isolated/Repeater Converter

Items of interest to the user on the Isolated Repeater/Converter are described below.

Two 25-pin female D-type connectors (Two 25-pin male, D-type connectors (solder

pot), are included for user cabling.)

115/230VAC power connection (internal) 4-position terminal block.

Fused 1 Amp power protection.

Power ON (green) indicator LED.

Three-position toggle switch, recessed in the back of the unit, is set according to the

system configurations shown later in this appendix.

E-2

Series 90-30 PLC Installation and Hardware Manual - October 1999

GFK-0356P

Obsolete Product

Logic Diagram of the Isolated Repeater/Conver ter

The figure below provides a functional look at the unit. Note the 3-position switch for

controlling the J1 port transmitters. This switch is discussed in System Configurations later in

this appendix..

a44782

OPTICAL

RS-422/RS-232C

RS-422

ISOLATION

SD (RS-232C)

RD ( B’ )

SD (B )

RD ( A’ )

SD (A )

RTS (RS-232C)

CTS ( B’ )

RTS (B )

RESISTOR

150

RTS (A )

CTS ( A’ )

RD ( B’ )

SD ( B )

ÎÎ

RD ( A’ )

ÎÎ

SD ( A )

RD (RS-232C)

CTS ( B’ )

RTS (B )

ÎÎ

RTS (A )

CTS ( A ’)

ÎÎ

CTS (RS-232C)

( CTS)

(ON)

(SE)

ISOLATED

POWER

SE (RS-232C)

115

SUPPLIES

VAC

Figure E-2. RS-422 Isolated Repeater/RS-232 Converter Logic Diagram

GFK-0356P

Appendix E IC655CCM590 Isolated Repeater/Converter

E-3

Obsolete Product

Note

All inputs are biased to the inactive state. Inputs left unconnected will

produce a binary 1 (OFF) state on the corresponding output.

Pin Assignments for the Isolated Repeater/Conver ter

Table E-1. Isolated Repeater/Conver ter Pin Assignments

J1 RS-422 Port (25-pin female connector)

J2 RS-422/RS-232 Port (25-pin female connector)

Signal

Description

Signal

Description

Send Data (RS-232)

Receive Data (RS-232)

RTS

Request to Send (RS-232)

CTS

Clear to Send (RS-232)

Ground Connection

CTS(B’)

Clear to Send (Optional Termination)

CTS(B’)

Clear to Send Optional Termination)

CTS(A’)

Clear to Send (Optional Termination)

CTS(A’)

Clear to Send (Optional Termination)

CTS(B’)

Clear to Send

RTS(B)

Request to Send

CTS(A’)

Clear to Send

RTS(A)

Request to Send

RTS(B)

Request to Send

CTS(B’)

Clear to Send

RTS(A)

Request to Send

CTS(A’)

Clear to Send

RD(B’)

Receive Data

SD(B)

Send Data

RD(A’)

Receive Data

SD(A)

Send Data

SD(A)

Send Data

RD(A’)

Receive Data

SD(B)

Send Data

RD(B’)

Receive Data

RD(A’)

Receive Data (Optional Termination)

RD(B’)

Receive Data (Optional Termination)

RD(B’)

Receive Data

SD(B)

Send Data (Optional Termination)

RD(A’)

Receive Data

SD(A)

Send Data (Optional Termination)

SD(A)

Send Data

NC=No Connection

SD (Send Data) and RD (Receive Data) are the same as TXD and RXD (used in the Series Six PLC).

(A) and (B) are the same as - and + A and B denote outputs, and A’ and B’ denote inputs.

Caution

The signal ground connections (pin 7 on each connector) must be made

between the Isolated Repeater/Converter and the PLC for J1, and the

Isolated Repeater/Converter and the host computer for J2.

Pin 7 of the J1 port is connected to the metal shell of the J1 connector. Pin

7 of the J2 port is connected to the metal shell of the J2 connector. These two

signal ground connections are isolated from each other and from the power

system ground (green wire on the terminal block). To maintain proper

isolation, these signal grounds cannot be tied together.

E-4

Series 90-30 PLC Installation and Hardware Manual - October 1999

GFK-0356P

Obsolete Product

RS-232

RS-422 ISOLATED REPEATER

RS-422

a44783

SHIELDED

RS-232 CONVERTER

TWISTED SHIELDED

PAIRS

(IC655CCM590)

PAIRS

150 Ω

RD (B’)

RD (A’)

RTS

CTS

Î**ÎÎ

RD ( A’ )15

SD ( A )

ÎÎ

CTS

RTS

RD ( B’ )14

SD ( B )

DCD

SD ( A )16

RD ( A’ )

SERIES

ÎÎÎ

ÎÎ

HOST

DTR

SD ( B )17

RD ( B’ )

90 PLC

COMPUTER

CTS ( A’ )11

RTS ( A )

ÎÎÎ

ÎÎ

RS-422

CTS ( B’ )10

RTS ( B )

RTS ( A )13

CTS ( A’ )

PORT

ÎÎÎ

RTS ( B )12

CTS ( B’ )

ÎÎ

GND

ÎÎÎ

SHLD

ÎÎ

25-PIN

25- PIN

15- PIN

MALE

FEMALE

MALE

FEMALE

RS-232/

RS-422

PORT

** SWITCH IN CENTER POSITION

PORT

115VAC

*TERMINATION RESISTANCE FOR THE RECEIVE DATA (RD) SIGNAL NEEDS TO BE CONNECTED ONLY ON UNITS AT THE END OF THE LINES.

THIS TERMINATION IS MADE ON THE SERIES 90 PLC PRODUCTS BY CONNECTING A JUMPER BETWEEN PIN 9 AND PIN 10 INSIDE THE

15-PIN D-SHELL WITH THE FOLLOWING EXCEPTION. FOR SERIES 90-70 PLCs, CATALOG NUMBERS IC697CPU731 AND IC697CPU771,

THE TERMINATION FOR RD AT THE PLC IS IMPLEMENTED BY A JUMPER BETWEEN PIN 9 AND PIN 11.

Figure E-3. Example RS-422 Isolated Repeater/RS-232 Converter Connection

System Configurations

The figures below show various ways you can connect the Isolated Repeater/Converter

to convert signals, expand the number of drops, and obtain greater distance. Any sys-

tem configuration can be reduced to a minimum number of cables each covering a part

of the overall system configuration. The following examples of system configurations

refer to these cables as Cables A through E which are described in Cable Diagrams later in

this section.

Downstream and Upstream Contention. In this section, simple multidrop configura-

tions are those where a single Isolated Repeater/Converter is used. Complex multidrop

configurations contain one or more multidrop sections where an Isolated Repeater/

Converter is included as one of the drops. In both simple and complex multidrop config-

urations, the transmitters directed downstream from the master can be on at all times.

There will be no contention for the communication line because only one device (the

master) transmits downstream.

In simple multidrop configurations, there will be no contention when transmitting up-

stream as long as devices tri-state their drivers when idle and turn them on only when

they have something to transmit. This is the case for the Series 90-70 and Series 90-30

CMMs.

In complex multidrop configurations, however, special steps must be taken to switch the

upstream transmitters of the Isolated Repeater/Converter.

Switching Upstream Transmitters. For the RS-422 drivers to be active at the J2 port of

the Isolated Repeater/Converter, the RTS input at J1 must be true. The state of the

RS-422 drivers at the J1 port depends on the position of the switch on the unit. When

the switch is in the center position, the J1 transmitters will always be turned on. When

the switch is in the CTS position, (toward the power cable), then either the RS-232 or

RS-422 CTS signal must be true to turn on the J1 drivers.

Note

Note the position of the switch on the Isolated/Repeater Converter in the

system configurations below.

GFK-0356P

Appendix E IC655CCM590 Isolated Repeater/Converter

E-5

Obsolete Product

Simple Multidrop Configuration

This configuration shows how to connect a single Isolated Repeater/Converter for signal

conversion or greater distance.

RS-232

RS-422

a44927

SERIES 90 PLC

(CABLE A)

(CABLE B)

(CABLE D)

* BRICK

SERIES 90 PLC

HOST

SW ON

SERIES 90 PLC

* BRICK IS THE NICKNAME FOR THE

ISOLATED REPEATER/CONVERTER

Figure E-4. Simple System Configuration Using the Isolated Repeater/Conver ter

Complex Multidrop Configuration

This configuration shows how to connect multiple Isolated Repeater/Converters for sig-

nal conversion, greater distance, and more drops.

RS-422

a44928

(CABLE C)

SERIES 90 PLC

HOST

SERIES 90 PLC

RS-422

(CABLE D)

BRICK

SERIES 90 PLC

RS-232

SW ON

(CABLE A)

SERIES 90 PLC

RS-422

(CABLE B)

RS-422

(CABLE D)

BRICK

SERIES 90 PLC

SW ON

SERIES 90 PLC

RS-232

(CABLE E)

BRICK

SERIES 90 PLC

BRICK IS THE NICKNAME FOR THE

ISOLATED REPEATER/CONVERTER

SW CTS

Figure E-5. Complex System Configuration Using the Isolated Repeater/Conver ter

Rules for Using Repeater/Conver ters in Complex Networks

When designing a complex multidrop network including PLCs and RS-422 repeater/con-

verters (bricks), the following rules apply:

Rule 1: When using a brick as a repeater, port J2 should always be directed toward the

host device, and Port J1 should always be directed away from the host device. The

switch located on the side of the brick should always be in the center position (ON). The

only case in which Port J1 is directed toward the host is when the brick is used as a con-

verter (RS-232) at the slave. The switch is in the right position (CTS).

Rule 2: If a Series 90 CMM slave device is located downstream of a brick, set the config-

uration of the CMM serial port to NONE flow control with a 10 ms Modem Turnaround

Delay (Applies to CCM, SNP, and SNP-X protocols only).

Rule 3: Do not place more than 3 bricks in a single communication path between the

host and the slave devices.

E-6

Series 90-30 PLC Installation and Hardware Manual - October 1999

GFK-0356P

Obsolete Product

Cable Diagrams

The cable diagrams below are referred to as Cables A-E from the system configurations

in the previous figures. These diagrams show the principles for constructing your own

cables and can be modified to fit your specific application.

a44929

SW ON

ÎÎ

RTS

CTS

ÎÎ

SERIES 90

ISOLATED

CMM

DCD

REPEATEÎ

DTR

CONVERTER

(BRICK)

1 OR 2 Î

ÎÎ

GND

ÎÎ

SHLD

25- PIN

ÎÎ

FEMALE

MALE

FEMALE

Figure E-6. Cable A; RS-232 CMM To Converter

a44930

SW ON

SD (A)

RD (A’)

SD (B)

RD (B’)

ÎÎ

RD (A’)

SD (A)

SERIES 90

RD (B’)

SD (B)

ISOLATED

ÎÎ

CMM

TERM

REPEATER/

CONVERTEÎ

RTS (A)

RTS (B)

PORT

(BRICK)

1 OR 2

CTS (A’)

CTS (B’)

RTS (B)

RTS (A)

ÎÎ

CTS (B’)

CTS (A’)

GND

SHLD

ÎÎ

25- PIN

FEMALE

MALE

FEMALE

* TERMINATE CONNECTION: ON THE CMM, INSTALL JUMPER TO CONNECT INTERNAL 120 OHM RESISTOR.

ON THE ISOLATED REPEATER/CONVERTER, INSTALL 150 OHM RESISTOR (SUPPLIED).

Figure E-7. Cable B; RS-422 CMM To Converter

GFK-0356P

Appendix E IC655CCM590 Isolated Repeater/Converter

E-7

Obsolete Product

SUBSTITUTE APPROPRIATE UP STREAM DEVICE

a44931

(WITHIN DOTTED BOX) PER SYSTEM DIAGRAMS.

SHIELDED

MAKE CONNECTIONS

TWISTED

INSIDE D-CONNECTORS

PAIRS

RD (A’)

RD (B’)

SERIES 90

Î SD (B)

RD (A’)

SD (A)

CMM

SERIES 90

RD (B’)

SD (B)

TERM

CMM

PORT

TERM

1 OR 2

RTS (A)

PORT

CTS (A’)

RTS (B)

CTS (B’)

GND

SHLD

25- PIN

FEMALE

MALE

FEMALE

ON J1

SW CTS

SD (A)

RD (A’)

SD (B)

RD (B’)

Î ÎÎ

RD (A’)

SD (A)

RD (B’)

SD (B)

ISOLATED

RTS (B)

TERM

REPEATER/

ÎÎ

REPEATER/

CTS (B’)

*150 OHMS

CONVERTER

RTS (A)

TERM

(BRICK)

CTS (A’)

ÎÎ

TERM

(USED AS A

*150 OHMS

CONVERTÎ

TERM

GND

25- PIN

ÎÎ

FEMALE

MALE

FEMALE

NOTE

WHEN WIRING RS-422 /485 MULTIDROP CABLES,

REFLECTIONS ON THE TRANSMISSION LINE CAN BE

REDUCED BY CONFIGURING THE CABLE IN A DAISY

CHAIN FASHION AS SHOWN BELOW.

RD (A’)

MASTER

CMM SLAVE 1

RD (B’)

ÎÎ1

SD (A)

SD (B)

ISOLATÎ

TERM

REPEATER/

CONVERTER

TERM

ÎÎ

CPU BUILT-IN PORT CMM SLAVE 2

EPEATÎ

GND

25- PIN

ÎÎ

ALSO IT IS RECOMMENDED TO MAKE ANY NECESSARY

MALE

FEMALE

CONNECTIONS INSIDE THE CABLE CONNECTOR TO BE

TO OTHER DEVICES

MOUNTED ON THE CMM. IT IS NOT RECOMMENDED TO

(MAXIMUM OF 8 DEVICES ON A MULTIDROP)

USE TERMINAL STRIPS OR OTHER TYPES OF

CONNECTORS ALONG THE LENGTH OF THE

TERMINATE THE RD (B’) SIGNAL ONLY AT END

TRANSMISSION LINE.

OF MULTIDROP CABLE

TERMINATE CONNECTION ON FIRST AND LAST DROPS ONLY: ON THE CMM, INSTALL JUMPER TO CONNECT INTERNAL 120 OHM

RESISTOR. ON THE ISOLATED REPEATER/CONVERTER, INSTALL 150 OHM RESISTOR (SUPPLIED)

ON THE CMM311, ONLY PORT 2 CAN SUPPORT RS-422/RS-485.

Figure E-8. Cable C; RS422 Twisted Pair

E-8

Series 90-30 PLC Installation and Hardware Manual - October 1999

GFK-0356P

Obsolete Product

SHIELDED MAKE CONNECTIONS

a44932

TWISTED INSIDE D-CONNECTORS

PAIRS

SD (A)

RD (A’)

SD (B)

RD (B’)

Î ÎÎ

RD (A’)

SD (A)

ÎÎ

RD (B’)

SD (B)

SERIES 90

ISOLATED

CTS (A’)

RTS (A)

CMM

REPEATER/

ÎÎ

CTS (B’)

RTS (B)

ÎÎ

CONVERTER

PORT

(BRICÎ

TERM

150 OHMS

ÎÎ

TERM

GND

Î ÎÎ

SHLD

ÎÎ

25- PIN

FEMALE

MALE

FEMALE

NOTE

WHEN WIRING RS-422 /485 MULTIDROP CABLES,

REFLECTIONS ON THE TRANSMISSION

LINE CAN BE REDUCED BY CONFIGURING THE

SW CTS

CABLE IN A DAISY CHAIN FASHION AS

RD (A’)

SHOWN BELOW.

RD (B’)

MASTER

CMM SLAVE 1

SD (A)

ÎÎ

SD (B)

ISOLATED

RTS (A)

RTS (B)

ÎÎPEATER/

CONVERTER

(BRICK)

TERM

ÎÎ

(USED AS A

CPU BUILT-IN PORT CMM SLAVE 2

CONVERTER)

150 OHMS

TERM

ÎÎ

GND

25- PIN

ÎÎ

MALE

FEMALE

ALSO IT IS RECOMMENDED TO MAKE ANY

NECESSARY CONNECTIONS INSIDE THE

CABLE CONNECTOR TO BE MOUNTED ON

THE CMM. IT IS NOT RECOMMENDED TO

USE TERMINAL STRIPS OR OTHER TYPES

OF CONNECTORS ALONG THE LENGTH OF

SW ON

THE TRANSMISSION LINE.

RD (A’)

RD (B’)

ÎÎ

SD (A)

SD (B)

ISOLATED

RTS (A)

ÎÎ

REPEATER/

RTS (B)

CONVERTER

(BRICK)

ÎÎ

TERM

(USED AS A

*150 OHMS

TERM

ÎÎ

GND

25- PIN

ÎÎ

25- PIN

MALE

FEMALE

TO OTHER DEVICES

(MAXIMUM OF 8 DEVICES ON A MULTIDROP)

TERMINATE THE RD (B’) SIGNAL ONLY AT END OF MULTIDROP CABLE

* TERMINATE CONNECTION ON FIRST AND LAST DROPS ONLY: ON THE CMM, INSTALL JUMPER TO CONNECT INTERNAL

120 OHM RESISTOR. ON THE ISOLATED REPEATER/CONVERTER, INSTALL 150 OHM RESISTOR (SUPPLIED)

ON THE CMM311, ONLY PORT 2 CAN SUPPORT RS-422/RS-485.

Figure E-9. Cable D; RS-422 Twisted Pair

CTS

a45239

ÎÎ

CTS

SERIES 90

CTS

RTS

CMM

ISOLATED

ÎÎ

GND

REPEATER/

PORT

CONVERTER

ÎÎ

(BRICK)

DCD

ÎÎ

DTR

ÎÎ

SHLD

25- PIN

FEMALE

MALE

FEMALE

Figure E-10. Cable E; RS-232 Converter to CMM

GFK-0356P

Appendix E IC655CCM590 Isolated Repeater/Converter

E-9

Appendix

F IC690ACC901 Miniconverter Kit

section level 1

figure_ap level 1

table_ap level 1

Description of Miniconverter

The Miniconverter Kit (IC690ACC901) consists of an RS-422 (SNP) to RS-232

Miniconverter, a 6 foot (2 meter) serial extension cable, and a 9-pin to 25-pin Converter

Plug assembly. The 15-pin SNP port connector on the Miniconverter plugs directly into

the serial port connector on the Series 90-30 power supply, Series 90-70 CPU or Series

90-20 CPU. The 9-pin RS-232 port connector on the Miniconverter connects to an RS-232

compatible device.

a44985

RS-422

RS-232

PORT

Figure F-1. Series 90 SNP to RS-232 Miniconverter

When used with an IBM PC-AT, or compatible computer, one end of the extension cable

plugs into the Miniconverter ’s 9-pin serial port connector, the other end plugs into the

9-pin serial port of the computer. The Converter plug (supplied with kit) is required to

convert the 9-pin serial port connector on the Miniconverter to the 25-pin serial port

connector on the GE Fanuc Workmaster II computer, or an IBM PC-XT or PS/2 Personal

Computer.

The GE Fanuc Workmaster computer requires an additional adapter (not supplied with kit - please

contact your local GE Fanuc PLC distributor) for use with the Miniconverter.

Pin Assignments

The pinouts of the Miniconverter are shown in the following two tables. The first table

shows the pinout for the RS-232 port, the second table shows the RS-422 port.

Pin Assignments, RS-232 Port

Table F-1 is for the RS-232 port. The direction of signal flow is with respect to the

Miniconverter.

GFK-0356P

F-1

Table F-1. Miniconverter RS-232 Port

Signal Name

Direction

SD - Send Data

Output

RD - Receive Data

Input

GND - Ground

n/a

CTS - Clear To Send

Input

RTS - Request To Send

Output

The pinouts were chosen to allow direct connection (using a straight through, or 1 to 1 cable

(as provided with kit)) to the IBM PC-AT. Most IBM compatible computers equipped with

an RS-232 port will provide a pinout compatible with the one shown above.

Pin Assignments, RS-422 Port

Table F-2 is the pinout for the Miniconverter ’s RS-422 serial port. The direction of signal

flow is also with respect to the Miniconverter.

Table F-2. Miniconverter RS-422 Port

Signal Name

Direction

SHLD - Shield

n/a

+5 VDC - Power

Input

CTS(A’) - Clear To Send

Input

GND - Ground

n/a

RTS(B) - Request To Send

Output

RT - Receive Termination

Output

SD(A) - Send Data

Output

SD(B) - Send Data

Output

RD(A’) - Receive Data

Input

RD(B’) - Receive Data

Input

CTS(B’) Clear To Send

Input

RTS(A) - Request To Send

Output

System Configurations

The Miniconverter can be used in a point-to-point configuration as described above, or in a

multidrop configuration with the host device configured as the master and one or more

PLCs configured as slaves.

The multidrop configuration requires a straight through (1 to 1) cable from the

Miniconverter’s RS-422 port to the first slave PLC’s SNP port. Other slaves will require a

daisy chain connection between slaves. A maximum of eight devices can be connected in

an RS-422 multidrop configuration. All of the devices must have a common ground. If

ground isolation is required, you can use the GE Fanuc Isolated Repeater/Converter

(IC655CCM590) in place of the Miniconverter.

F-2

Series 90-30 PLC Installation and Hardware Manual - October 1999

GFK-0356P

When using the Miniconverter with a modem connection, it may be necessary to jumper

RTS to CTS (consult the user ’s manual for your modem).

Cable Diagrams (Point-To-Point)

When connecting the Miniconverter to IBM PC and compatible computers with

hardware handshaking, the following cable connections should be used.

a44982

TXD

RXD

TXD

CTS

RTS

CTS

GND

DCD

DSR

DTR

MINICONVERTER

IBM PC-AT

RS-232 PORT

9-PIN

CONNECTOR

Figure F-2. Miniconverter to PC-AT

a44983

TXD

RXD

TXD

CTS

RTS

CTS

GND

DCD

DSR

DTR

MINICONVERTER

WORKMASTER II,

RS-232 PORT

IBM PC-XT, PS/2

9-PIN

25-PIN

CONNECTOR

Figure F-3. Miniconverter to Workmaster II, PC-XT, PS/2

a44984

TXD

RXD

TXD

CTS

RTS

CTS

GND

MINICONVERTER

WORKMASTER

RS-232 PORT

9-PIN

CONNECTOR

Note: Additional adapter required

Figure F-4. Miniconverter to 9-Pin Workmaster or PC-XT Computer

GFK-0356P

Appendix

F IC690ACC301 Miniconverter Kit

F-3

Appendix

IC690ACC903 Port Isolator

The IC690ACC903 RS-485 Port Isolator replaces the IC655CMM590 Isolated Repeater/Converter

(also referred to as the “Brick”). The device features 500 volts of isolation in a compact package

servicing all IC693, IC697, and IC200 PLC product lines. The product connects directly to an RS-

485 serial port or though a short extender cable provided with the device. The extension cable is

intended for use in applications where direct connection to the port is obstructed by surrounding

equipment or when it is not acceptable for the device to protrude from a PLC module. The Port

Isolator can operate in either single- or multi-drop mode, which is selected by a slide switch on the

top of the module.

The Port Isolator provides the following features:

· Four opto-isolated signal channels: SD, RD, RTS, and CTS

· Electrical compatibility with RS-485

· Single- or multi-drop operation

· Input termination consistent with standard for serial channels

· A 5V DC/DC converter for power isolation

· Hot insertion is supported

FRONT VIEW

Multidrop

Switch

1.7 in

TOP VIEW

2.6 in

0.7 in

Figure G-1. RS485 Port Isolator

GFK-0356P

G-1

Connectors

The Isolator provides two connectors, one 15 pin male D-type (PL1) and one

15 pin female D-type (PL2).

RS-485 Connectors

Pin Name

Pin Type

Description

PL1

SHLD

Chassis Ground

+5V power

CTS (A')

Clear to send -

Signal Ground

RTS (B)

Out

Request to send +

SD (A)

Out

Send data -

SD (B)

Out

Send data +

RD (A')

Read data -

RD (B')

Read data +

CTS (B')

Clear to send +

RTS (A)

Out

Request to send -

Pin Name

Pin Type

Description

PL2

+5V power

RTS (A)

Out

Request to send -

Signal Ground

CTS (B')

Clear to send +

Terminating Resistor*

RD (A')

Read data -

RD (B')

Read data +

SD (A)

Out

Send data -

SD (B)

Out

Send data +

RTS (B)

Out

Request to send +

CTS (A')

Clear to send -

* Use the terminating resistor if the Port Isolator is used in port-to-port mode or at the end of a multi-drop

configuration. To terminate the RD balanced line, place a jumper wire from pin 9 to pin 10.

* A denotes - and B denotes +. A and B denote outputs and A' and B' denote inputs.

G-2

Series 90-30 PLC Installation and Hardware Manual - October 1999

GFK-0356P

Installation

The Isolator is packaged in a contoured plastic enclosure designed for either direct attachment to a

serial port or through a 12” extender cable for panel mounted applications. Two M3 thumbscrews

secure the device to its mating connector. The device can be easily inserted into an existing

communication channel with no additional hardware. In Figure 2, the Isolator is shown connected

directly to a CPU module. Alternatively, the Isolator can be mounted separately from the PLC

system using the extender cable provided. For mounting separately to a panel, you will need to

provide two #6-32 (4 mm)mounting screws (Figure 3).

When installing the Isolator, tighten the connector screws and panel mounting screws (if used) to

the following torque values:

Screws

Type

Torque

Connector Thumbscrews (supplied with

8 in./lbs. (0.9 Newton-meter)

Isolator)

Panel Mounting Screws (user-supplied)

#6/32 (4 mm)

12 in./lbs. (1.4 Newton-meters)

PLC 1

CPU

RS-485 Port

Isolator

4000 ft

SNP

Cable

PLC 2

CPU

Figure G-3. RS-485 Port Isolator in PLC Network

#6-32 (4 mm) screw

Multidrop Switch

TOP

VIEW

#6-32 (4 mm) screw

Figure G-4. Mounting Port Isolator to Panel

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Series 90-30 PLC Installation and Hardware Manual - October 1999

GFK-0356P

The RS485 Port Isolator supports both port-to-port and multi-drop configurations (Figure 4). For

installation information, refer to section 3 of the Serial Communications User's Manual (GFK-

0582). One configuration not covered in the User's Manual is the case where the Isolator is

communications if the host system requires a power cycle. It also prevents power loss to equipment

using the port for power. For this, you will need to build a custom cable as shown in Figure 5.

Terminate at first

and last drop only

Slave Device

Master PLC

15 pin port

Make connectons

Twisted Pairs

inside D connectors

SD(B)

RD(B')

SD(A)

RD(A')

RD(B')

SD(B)

RD(A')

SD(A)

RTS(B)

CTS(B')

RTS(A)

CTS(A')

CTS(B')

RTS(B)

CTS(A')

RTS(A)

SHLD

+5V

GND

Slave Device

15 pin port

RD(B')

RD(A')

SD(B)

SD(A)

CTS(B')

CTS(A')

RTS(B)

RTS(A)

SHLD

+5V

GND

Slave Device

25 pin port

RD(B')

RD(A')

SD(B)

SD(A)

CTS(B')

CTS(A')

RTS(B)

RTS(A)

GND

SHLD

To Other Slave Devices

(Maximum of 8 devices on a multidrop)

Figure G-5. Multidrop Configuration Connecting Devices with 15-Pin Ports and 25-Pin Ports

GFK-0356P

Appendix G IC690ACC903 Port Isolator

G-5

Specifications

Mechanical

RS-485

15-pin D shell male for direct mounting to serial port on the programmable

controller

15-pin D shell female for communication cable

Installation Hardware

Two M3 thread connector thumbscrews. Recommended torque: 8 in./lbs. (0.9

Newton-meter). These are supplied with Isolator.

Two user supplied #6/32 (4mm) thread panel mounting screws. Recommended

torque: 12 in./lbs. (1.4 Newton-meter)

Electrical

Voltage Supply

+5VDC (supplied by port)

Typical Current

25 mA

100 mA available for external equipment

Ground Isolation

500 Volts

Conformance

EIA-422/485 Balanced Line

Operating

0° - 60°C (32° - 140° F)

Temperature

Baud Rate

Those supported by PLC

Note: This appendix is based upon Data Sheet GFK-1663.

GFK-0356P

Appendix G IC690ACC903 Port Isolator

G-7

Appendix

Series 90-30 Heat Dissipation

Overview

Most PLCs are mounted in an enclosure. The enclosure should be capable of properly dissipating

the heat produced by all of the devices mounted inside it. This appendix describes how to calculate

heat dissipation for a Series 90-30 PLC. The strategy is to calculate a heat dissipation value, in

Watts, for each individual module in the PLC. Then these individual values will be added together

to obtain a total heat dissipation figure for the PLC. When making your calculations, don’t forget

the following:

· To convert percent to a decimal, move the decimal two places to the left. For example, 40%

would be expressed as 0.40, and 100% would be 1.00.

· To convert milliamps (mA) to Amperes (A or Amps), move the decimal three places to the

left. For example, 10mA would convert to .010A, and 130mA would convert to 0.130A.

Information Required

· In addition to the information in this manual, you will need GFK-0898, Series 90-30 I/O

Module Specifications Manual.

· You will need operating current values for the discrete output devices connected to the

PLC’s discrete output modules. These include control relays, motor starters, solenoids, pilot

lights, etc. Each device manufacturer publishes these values. If an exact value is not

available for a device, you can make a close estimate by obtaining the value for a similar

device from a catalog. These values are also needed for selecting Output modules during the

design process in order to ensure that the modules’ maximum ratings are not exceeded.

Step 1: Basic Method to Calculate Module Dissipation

Note that this step does not apply to Power Supply Modules, which are covered in Step 2. The

values needed for this calculation are found in the “Load Requirements” table in Chapter 12. We

will use the basic electrical power formula in these calculations

Power (in Watts) = Voltage (in Volts) x Current (in Amps).

We will assume that all input power to these modules is eventually dissipated as heat. The

procedure is:

GFK-0356P

H-1

· Look up the module in the “Load Requirements” table (Chapter 12) and obtain the current

values for each of the three power supply voltages listed. The voltage is printed at the head

of each column. All modules use the 5VDC supply, and a relatively few modules also use

one or both of the two 24VDC supplies.

· For a given module, calculate the power dissipation for each column in the table that contains

a current value by multiplying the current value (in Amps) times the voltage for that column.

For modules using more than one voltage, add the calculated power values to arrive at the

total for the module.

Example 1:

The “Load Requirements” table shows that the IC693CPU352 module draws:

910 mA from the +5VDC supply.

No current from either of the two 12VDC supplies

To calculate power dissipation, multiply 0.910 Amps times 5 Volts. The answer is:

4.55 Watts (of heat dissipated by this module)

Example 2:

The “Load Requirements” table shows that the IC693MDL241 module draws:

80 mA from the +5VDC supply

125 mA from the +24VDC Isolated supply

To calculate power dissipation from the +5VDC supply:

Multiply 0.08 Amps times 5 Volts to arrive at a value of 0.40 Watts.

To calculate power dissipation from the +24VDC supply:

Multiply 0.125 Amps times 24 Volts to arrive at a value of 3.0 Watts.

Adding the two together, we find the total heat dissipated by this module is 3.4 Watts.

Step 2: Calculation for PLC Power Supplies

A basic rule for Series 90 power supplies is that they are 66% efficient. Another way of stating this

is that the power supply dissipates 1 Watt of power in the form of heat for every 2 Watts of power

it delivers to the PLC. Therefore, you can calculate the total power requirement for all of the

modules in the rack served by a particular power supply using the method in Step 1 above, then

divide that figure by 2 to arrive at the power supply dissipation value. You cannot simply use the

rating of the power supply (such as 30 Watts) for this calculation because the application may not

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Series 90-30 PLC Installation and Hardware Manual - October 1999

GFK-0356P

require the full capacity of the power supply. If you are using the +24VDC output on the power

supply’s terminal strip, you should calculate the power drawn, divide the value by 2, and add it to

the total for the power supply. Since each Series 90-30 rack has its own power supply, each rack

should be calculated on an individual basis.

Step 3: Output Calculations for Discrete Output Modules

Discrete solid state Output modules require two calculations, one for the module’s signal-level

circuits, which was already done in Step 1, and one for the output circuits. (This output circuit

calculation is not required for the Relay Output modules.) Since the solid state output switching

devices in these modules will drop a measurable amount of voltage, their power dissipation can be

calculated. Note that the power dissipated by the output circuits comes from a separate power

source, so it is not included in the figure used to calculate PLC power supply dissipation in Step 2.

To calculate output circuit power dissipation:

· In the Series 90-30 I/O Module Specifications Manual, GFK-0898, find the value for the

Output Voltage Drop for your particular module.

· Obtain the required current value for each device (such as a relay, pilot light, solenoid, etc.)

connected to an output point on the module and estimate its percent of “on-time.” To obtain

the current values, check the device manufacturer’s documentation or an electronics catalog.

The percent of on-time can be estimated by someone familiar with how the equipment

operates or will operate.

· Multiply the Output Voltage Drop times the current value times the estimated percent of on-

time to arrive at average power dissipation for that output.

· Repeat for all outputs on the module. To save time, you could determine if several outputs

were similar in current draw and on-time so that you would only have to make their

calculation once.

· Repeat these calculations for all Discrete Output modules in the rack.

Discrete Output Module Example:

The Series 90-30 PLC I/O Module Specifications Manual, GFK-0898, lists the following for the

IC693MDL340 16-Point Discrete 120VAC Output Module:

Output Voltage Drop:

1.5 Volts maximum

Use that value for all of the calculations for this module.

In this example, two of the Output module’s output points drive solenoids that control the advance

and retract travel of a hydraulic cylinder. The solenoid manufacturer’s data sheet shows that each

solenoid draws 1.0 Amp. The cylinder advances and retracts once every 60 seconds that the

machine is cycling. It takes 6 seconds to advance and 6 seconds to retract.

Since the cylinder takes equal time to advance and retract, both solenoids are on for equal lengths

of time: 6 seconds out of every 60 seconds, which is 10% of the time. Therefore, since both

GFK-0356P

Appendix H Series 90-30 Heat Dissipation

H-3

solenoids have equal current draws and on-times, our single calculation can be applied to both

outputs.

Use the formula Average Power Dissipation = Voltage Drop x Current Draw (in Amps) x Percent

(expressed as a decimal) of on-time:

1.5

x 1.0 x 0.10 = 0.15 Watts per solenoid

Then multiply this result by 2 since we have two identical solenoids:

0.15 Watts x 2 Solenoids = 0.30 Watts total for the two solenoids

Also in this example, the other 14 output points on this 16-point module operate pilot lights on an

operator’s panel. Each pilot light requires .05 Amps of current. Seven of the pilot lights are on

100% of the time and seven are on an estimated 40%.

For the 7 lights that are on 100% of the time:

1.5 x .05 x 1.00 = 0.075 Watts per light

Then multiply this value by 7:

0.075 Watts x 7 lights = 0.525Watts total dissipation for the first 7 lights

For the 7 lights that are on 40% of the time:

1.5 x .05 x 0.40 = .03 Watts per light

Then multiply this value by 7:

.03 Watts x 7 lights = 0.21 Watts total dissipation for the other 7 lights

Adding up the individual calculations, we get:

0.30 + 0.525 + 0.21 = 1.035 Watts for the module’s total output calculation

Step 4: Input Calculations for Discrete Input Modules

A Discrete Input Module requires two calculations, one for the module’s signal-level circuits,

which was already done in Step 1, and one for the input circuits. Note that the power dissipated by

the input circuits comes from a separate power source, so are not included in the figure used to

calculate PLC power supply dissipation in Step 2. We will assume that all input circuit power

delivered to these modules is eventually dissipated as heat. The procedure is:

· Find the value for the Input Current in the “Specifications” table for your input module in the

Series 90-30 I/O Module Specifications Manual, GFK-0898.

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Series 90-30 PLC Installation and Hardware Manual - October 1999

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FANUC Series 90-30 PLC. Installation and Hardware Manual (GFK-0356P) - page 13