HNC-8 Numerical Control System Software. Maual of PLC Programming (V1.24)

HNC-8-PLC Component specification

5. Status word and control word programming

Introduction on Status Word and Control Word

Overview

The status word and control word are the most direct way of the interaction

between CNC and PLC. The status data of system can be obtained through the

status word, and you can write control word to change the system state. In the

system series 8, F represents status word with its property being read-only, G

represents control word with its property being read-write.

However, to limit the use of some key functions of system, some control words

are restricted, or are invisible to user. Please read following constraints of status

word and control word carefully.

Usage

restrictions

can be used

status

reserved for future extension

word and

control

cannot be used by user

word

Range of

Status words and control words can be divided into three types for each of its

application

function in the system. They all have serviceable range, refer to the configuration

manual for details.

Status words and control words of axis

Status words and control words of channel

Status words and control words of system

Symbol

Take the words of channel as an example:

form

In this example, the format is channel 3, the second group of status word, and

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5. Status word and control word programming

Axis Status Word

Overview

80 status words are configured for each axis. Each status word has a 16-bit byte.

The first row indicates the bits from 0 to 7, and the second row indicates the bits

from 8 to 15. The axis status words need to be used with the logical number

offset of axis.

Axis status

word

D15

D14

D13

D12

D11

D10

Return to

Home

Return to

Subaxis

Home

the

Axis

completin

the first

zero

home

failure

second

moving

reference

Axis

The

Axis

The forth

The third

The first

Axis reset

Axis lock

parameter

second

overload

reference

Orientatio

SPD

Spindle

Rapid

Spindle

PMC

Reserved

arrival

stop

completin

feed

mode

enable

Index axis

Index

Index axis

Reserved

locking

position

unlocking

Capture

Servo

Zero

Servo

2^nd stage

Reserved

Servo ready

the first Z

parameter

capture

home

pulse

Spindle

SPD

Gain

Z pulse

Torque

Speed

Position

Sv ready

stop

arrival

switch

capture

control

Servo

Normal

Reserved

prompt

alarm

servo

Orientatio

Reserved

completin

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5. Status word and control word programming

Details

【F0.0】During the axis movement, when the axis is moving, the value is 1;

when the axis is not moving, the value is 0.

【F0.1】The first step of returning home: when the axis is returning home

without meeting home block, the value is 1; otherwise, the value is 0.

【F0.2】The second step of returning home: when Z pulse is being looked for,

the value is 1; otherwise, the value is 0.

【F0.3】Unsuccessful homing: when the axis hasn’t returned to zero, the value is

1; otherwise, the value is 0.

【F0.4】Successful homing: When the axis has been to zero, the value is 1;

otherwise, the value is 0.

【F0.5】Subaxis is returning home.

【F0.6】Zero point of subaxis has been checked.

【F0.7】Following status of subaxis has been released.

【F0.8】Comfirm the first reference: when the axis is at the first reference point,

the value is 1; otherwise, the value is 0.

【F0.9】Comfirm the second reference: when the axis is at the second reference

point, the value is 1; otherwise, the value is 0.

【F0.10】Comfirm the third reference: when the axis is at the third reference

point, the value is 1; otherwise, the value is 0.

【F0.11】Comfirm the forth reference: when the axis is at the forth reference

point, the value is 1; otherwise, the value is 0.

【F0.13】Axis parameter is effective.

【F0.14】Axis has been locked.

【F0.15】Axis has been repositioned.

【F1.0】PMC control enabled. When PMC control has been enabled, the value is

1; otherwise, the value is 0.

【F1.1】Feed spindle mode. 1 is position mode, and 0 is speed mode.

【F1.5】Orientation of feed spindle has been finished.

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5. Status word and control word programming

【F1.6】Feed spindle is at zero speed.

【F1.7】Feed spindle speed arrival.

【F1.13】Index axis is unlocked. 1 indicates that system notifies PLC to unlock

index axis. The index axis is enabled.

【F1.14】Index axis is at index position.

【F1.15】Index axis is locked. 1 indicates that system notifies PLC to lock index

axis. The index axis is disabled.

【F2.0】When Z pulse is captured once during homing of axis, the value is 1;

otherwise, the value is 0.

【F2.1】When servo ready flag is 0, servo can receive incremental data.

【F2.3】Capture Z pulse of the second encoder, which is mainly used for homing

of distance code grating scale.

【F2.4】When servo has been back to zero, the output is 1.

【F2.6】Zero capture, which is mainly usded for spindle. When spindle meets the

first Z pulse at rotating time, set the value to 1. In the event of CS switching, the

value nees to be set to 1.

【F2.7】Servo parameter switch. 0: default parameter. 1: switch to the second set

of parameter.

【F2.8】When bus servo is ready, the value is 1; otherwise, the value is 0.

【F2.9】When servo is in position control mode, the value is 1; otherwise, the

value is 0.

【F2.10】When servo is in speed control mode, the value is 1; otherwise, the

value is 0.

【F2.11】When servo is in torque control mode, the value is 1; otherwise, the

value is 0.

【F2.12】When Z pulse is encountered, the value is 1; otherwise, the value is 0.

【F2.13】

【F2.14】When the spindle speed reaches, the value is 1, otherwise, the value is

【F2.15】Spinde stop: when spindle stops, the value is 1; otherwise, the value is

【F3.0】When servo is normal, the value is 1.

【F3.1】When servo alarms, the value is1.

【F3.2】When servo prompts, the value is 1.

【F3.8】Spindle orientation is completed After spindle orientation is set, spindle

starts directing. After the directing is completed, servo returns the signal of

completing spindle orientation, and the value is 1; otherwise, the value is 0.

【F4】Number of channel which the axis belongs to. (Channel number is in

decimal.)

【F5】Number of driven axises which are guided. (Number of driven axises is in

decimal.)

【F[6/7]】Real-time output command increment, motor coordinate.

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5. Status word and control word programming

【F[8/9/10/11]】Real-time output command position, motor coordinate. (metric

system)

【F[12/13/14/15]】Output command pulse position, unit: pulse.

【F[16/17]】Command pulse per cycle. Number of command pulses which is

sent to servo each cycle.

【F[18/19]】Output command torque.

【F[20/21/22/23]】Actual feedback position of encoder 1. (metric system)

【F[24/25/26/27]】Actual feedback position of encoder 2. (metric system)

【F[28/29/30/31]】Command position of machine. (metric system)

【F[32/33/34/35]】Actual position of machine. (metric system)

【F[36/37]】Axis alarm

【F36.2】Plus software limit switch reached.

【F36.3】Minus software limit switch reached

【F36.4】Actual speed is overspeed.

【F36.6】Overspeed

【F36.7】Super acceleration.

【F36.8】Z pulse cannot be found.

【F36.9】Connection has been aborted.

【F36.10】Not referenced.

【F36.11】Sync position out-of-tolerance

【F36.12】Slave axis zero check is aborted

【F36.13】Sync speed out-of-tolerance

【F37.0】Plus software limit exceeded.

【F37.2】Minus software limit exceeded.

【F37.2】Acceleration does not match maximum speed.

【F[38/39]】Axis prompt

【F38.0】Max compensation ratio exceeded.

【F38.1】Max compensation exceeded.

【F38.2】Zero offset parameter is too small.

【F38.4】Software limit is too large.

【F38.5】The second software limit is too large.

【F38.6】Absolute encoder cycle digits are illegal.

【F38.7】Position overflow.

【F38.8】Target is outside plus software limit.

【F38.9】Target is outside minus software limit.

【F38.10】Mask angle of Z pulse needs to be adjusted.

【F38.11】Reference position needs to be adjusted.

【F38.12】Tracking error is too large.

【F[70]】Current axis mode.

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5. Status word and control word programming

Axis Control Word

80 control words are configured for each axis. Each control word has a16-bit

Overview

byte. The first row indicates the bits from 0 to 7, and the second row indicates

the bits from 8 to 15. The axis contorl words need to be used with the logical

number offset of axis.

Axis

control

word

D15

D14

D13

D12

D11

D10

Axis

Axis lock

Home

No axis

Negative

Positive

enable

block

start

motion in

limit

negative

positive

direction

Axis reset

Compens

Reserved

Subaxis

Reserved

ation

expansion

*SP

*SP Jog

Expand

The

Relative

Absolute

rotation

orientatio

software

second

pmc

CCW

limit

software

motion

limit

Response

Reserved

locking

unlocking

response

Servo

Reserved

Capture Z

Parameter

pulse of

Reserved

pulse

encoder 2

Spindle

Directiona

Reserved

Spindle

Torque

Speed

Position

Servo

current-li

orientation

control

gain

miting

gear-shift

Reserved

Servo

enable

Reserved

Details

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5. Status word and control word programming

【G0.0】Positive limit switch of axis.

【G0.1】Negative limit switch of axis.

【G0.2】No axis movement in positive direction.

【G0.3】No axis movement in negative direction.

【G0.4】Set to start homing.

【G0.5】Set home block.

【G0.6】Set to lock the axis.

【G0.7】Set axis enable

【G0.11】Set to disable function of subaxis following

【G0.14】Compensation expansion

【G0.15】Single-axis reset

【G1.0】Absolute PMC axis motion is enabled.

【G1.1】Relative PMC axis motion is enabled.

【G1.2】The second software limit is enabled.

【G1.3】Extension software limit is enabled.

【G1.4】Feed-spindle Jog.

【G1.5】Feed-spindle orientation.

【G1.6】Feed -spindle rotates in clockwise direction.

【G1.7】Feed -spindle rotates in counter clockwise direction.

【G1.12】Response flag of PLC to spindle C/S switch.

【G1.14】Response flag of PLC to signal of unlocking index axis.

【G1.15】Response flag of PLC to signal of locking index axis.

【G2.0】Z pulse flag. (when motor is at the position of Z pulse, this flag is 1.)

【G2.1】Wait for zero pulse

【G2.2】Turn off function of searching zero pulse.

【G2.3】Capture zero pulse of the second encoder.

【G2.7】 Servo parameter switch. 0: Defaul parameter, 1: switch to the second

set of parameter.

【G2.8】Servo gain switch.

【G2.9】Switch to position control mode.

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5. Status word and control word programming

【G2.10】Switch to speed control mode.

【G2.11】Switch to torque control mode.

【G2.12】Spindle orientation start.

【G2.14】Directional gear-shift of spindle.

【G2.15】Spindle current-limiting

【G3.0】Servo enable switch.

【G4】Axis jog flag. When the axis is manual, or returning to zero, or the spindle

is rotating, this flag is effective.

【G5】Increment flag of axis. When axis is moving incrementally, this flag is

effective.

【G[6/7]】Jog speed. 0: stop; 1: Jog speed in paramter; 2: Rapid traverse speed in

parameter; >2: Self-defined speed.

【G8】Incremental rate.

【G9】Handwheel rate.

【G[10/11]】handwheel pulse.

【G[12/13/14/15]】Axis feedback position, unit: pulse

【G[16/17/18/19]】Axis feedback position 2, unit: pulse

【 G[20/21] 】 Actual speed of axis, unit: pulse. Actual axis-speed is the

incremental value per cycle of the actual feedback position of axis (G12-G15).

【G[22/23]】Actual speed 2 of axis

【G[24/25]】Actual torque of axis

【G[26/27]】Tracking error. (Tracking error of axis is the difference between the

actual axis feedback position

(G12-G15) and the axis command position

(F12-F15).)

【G[28/29/30/31]】Counter value of encoder 1

【G[32/33/34/35]】Counter value of encoder 2

【G[36/37]】Real-time compensation value.

【G[38/39]】Sample timestamp

【G[40/41/42/43]】Latch position 1 (when the first encoder has z pulse, the

current position is latched, which is used for G31 or distance code homing.

【G[44/45/46/47]】Latch position 1 (when the second encoder has z pulse, the

current position is latched, which is used for G31 or distance code homing.

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【G[48/49/50/51]】Target position of absolute movement for PMC axis.

【G[52/53/54/55]】Incremental movement of PMC axis

【G[56/57]】Servo alarm code.

【G[58/59]】Servo prompt code.

【G60】(2 is handwheel interruption, and 103 is PMC mode)

【G61】Override value of PMC axis.

【G62.0】PMC axis stop.

【G62.1】Zero handwheel interruption.

【G62.2】Turn on function of tangent following.

【G62.4】Index axis switch.

【G62.5】When coupling of driven axis is restored, synchronize the position of

synchronization axis.

【G62.8】Spindle control, write actual rotation speed to instruction.

【G62.9】Start spindle rotation speed of gear shift.

【G64】Current axis gear.

【G66/67】Gear shift of spindle.

【G68/69】Z pulse position.

【G70/71】Z pulse interval 1.

【G72/73】Z pulse interval 2.

【G74】Gear shift of spindle.

【G78/79】Sample data of servo

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5. Status word and control word programming

Channel Status Word

Overview

80 control words are configured for each channel. Each control word has a 16-bit

byte. The first row indicates the bits from 0 to 7, and the second row indicates

the bits from 8 to 15. The axis contorl words need to be used with the logical

number offset of channel.

Axis status

word

D15

D14

D13

D12

D11

D10

User

Cycle

interventi

非自动时运动

Feedhold

Mode #3

Mode #2

Mode #1

Mode #0

start

F2560

Search Z

Suspend

Verify

Resetting

Rest flag

reserved

Cut thread

Cutting

pulse

request

state

Interrupti

Wait for

Interrupti

Procedure

Program

reserved

comletion

on skip

complete

start

select

F2561

complete

Non-null

reserved

completio

instructio

F2562

reserved

Spindle is

Index

Tool

instructio

constant

instructio

reserved

offset flag

linear

speed

Details

【F2560.0 ~F2560.3】To get mode

0: Reset mode

1: Auto mode

2: Manual mode

3: Increment mode

4: Handwheel mode

5: Home mode

6: PMC mode

7: Single block mode

8: MDI mode

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【F2560.4】Feedhold: channel is in state of feedhold.

【F2560.5】Cycle start:channel is in state of cycle start.

【F2560.6】Axis moves in non-auto mode.

【F2560.7】User movement is interfering.

【F2560.8】Cutting.

【F2560.9】Thread-cutting: channel is in state of cutting thread, and feedhold is

not allowed.

【F2560.11】Verify state.

【F2560.12】Channel reset: in the event of channel reset or reset button on panel

being pressed, channel reset is effective, until channel reset response is set.

【F2560.13】Suspend request.

【F2560.14】Channel is resetting.

【F2560.15】When axis is returning home to look for Z pulse, switching mode is

not allowed.

【F2561.0】Program is selected, which is set by interpreter.

【F2561.1】Program start, which is set by channel control.

【F2561.2】Program is completed, which is set by channel control.

【F2561.3】Interrupt instruction G28/G31 is completed.

【F2561.4】Skip interrupt instruction.

【F2561.5】Wait for completing instruction.

【F2561.8】There are non-empty instruction flags in channel.

【F2561.9】Non-empty instruction flag is completed in channel.

【F2562.9】Tool offset mark [tool offset number is in T instruction]

【F2562.10】PLC index instruction flag.

【F2562.11】Spindle is at constant linear speed.

【F2562.12】The first S instruction.

【F2562.13】The second S instruction.

【F2562.14】The third S instruction.

【F2562.15】The forth S instruction.

【F2569】Tool offset number, which is in T instruction.

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【F[2570/2571】The first S instruction. Unit: 0.001 revolution/minute.

【F[2572/2573】The second S instruction. Unit: 0.001 revolution/minute.

【F[2574/2575】The third S instruction. Unit: 0.001 revolution/minute.

【F[2576/2577】The forth S instruction. Unit: 0.001 revolution/minute.

【F2578/79】G31 number which is currently waiting signal.

【F2580】Currently running coordinate system.

【F[2581/2589]】Axis numbers of nine axises in channel

【F[2590/2593]】Axis number of the forth spindle in channel.

【F[2594/2595]】Alarm code of syntax error.

【F[2596/2599]】Channel alarm code.

【F[2600/2603]】Channel prompt number.

【F[2604/2607]】User output.

【F[2608/2615]】M codes which run in channel, with a maximum of 8.

【F2616】T instruction in channel. When T code is executing in channel, the

value of T code is in register; otherwise, the output is 1.

【F2617】B instruction in channel. B axis in boring machine is executed by PLC,

and indexing is executed by B instruction.

【F2632】Number of tool which is alarmed for the maximum life span being

reached.

【F2636.0】Channel is resetting.

【F2632.1】Program has been stopped exactly.

【F2632.2】Flag of inclined axis

【F2632.3】Interpolation instruction runs in channel.

【F2632.4】Flag of spindle synchronization.

【F2632.5】Handwheel feed direction.

【F2637.0】Subprogram process start.

【F2637.1】Subprogram waits for feedhold, and saves breakpoint.

【F2637.2】Break point flag.

【F2637.3】Start to load subprogram.

【F2637.4】Complete loading.

【F2637.5】Start running.

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5. Status word and control word programming

Channel Control Word

Overview

80 control words are configured for each channel. Each control word has a 16-bit

byte. The first row indicates the bits from 0 to 7, and the second row indicates

the bits from 8 to 15. The axis contorl words need to be used with the logical

number offset of channe

Axis

control

D15

D14

D13

D12

D11

D10

word

Measure

ment

Cycle

Work

Dry run

Feedhold

interrupti

start

mode

G2560

Data

Clear

Emergenc

Panel

Reset

Data save

Reset

Verify

revovery

cache

y stop

reset

response

Data

Arbitrary

Explanati

Selection

Skip

Interpreter

Rerun

Rerun 2

G2561

recovery

row

on reset

stop

block flag

startup

Handwhe

Program

External

User

Explanati

Reserved

modificati

Reserved

interruptio

Reserved

interruptio

motion

on save

G2562

Reserved

Rotation

Reserved

Speed

Reserved

speed

MST lock

spindle

check

arrival

G2620

Panel

Handwhe

Home

Single

PMC

Increment

Manual

Auto

enable

reference

block

Rapid

Reserved

Incremental rate

traverse

Handwheel 1

Handwheel 0

G2621

Handwhe

Hanwheel 0 rate

Reserved

el 1

Hanwheel 1 rate

enable

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5. Status word and control word programming

Axis 7+

Axis 6+

Axis 5+

Axis 4+

Axis 3+

Axis 2+

Axis 1+

Axis 0+

G2622

Axis 8+

Reserved

Axis 7-

Axis 6-

Axis 5-

Axis 4-

Axis 3-

Axis 2-

Axis 1-

Axis 0-

Axis 8-

G2623

Reserved

Details

【G2560.0/1/2/3】Work mode. 0: reset mode, 1: auto mode, 2: manual mode, 3:

increment mode, 4: handwheel mode.

【G2560.4】Feedhold: Set feedhold in channel.

【G2560.5】Cycle start: set cycle start in channel.

【G2560.6】Dry run: set to dry run in channel.

【G2560.7】Mearsure interruption flag. When this flag is set to 1, system

interrupts ongoing G31 instruction. It is used with G2582.

【G2560.8】Verify

【G2560.9】PLC reset response: when PLC has been reset, set this flag to 1.

【G2560.10】Panel reset flag. Through deteting this flag, PLC discover whether

the system is resetting.

【G2560.11】Emergency stop flag. This flag is set for emergency stop of

machine.

【G2560.12】Flag of channel buffering clear.

【G2560.13】This flag is set for resetting machine.

【G2560.14】Flag of channel data recovery.

【G2560.15】Channle data save.

【G2561.0】Flag of interpreter startup.

【G2561.1】Flag of the second step of program rerun.

【G2561.2】Flag of skipping block. When this flag is set to 1, system skips

block.

【G2561.3】Selection stop flag. When this flag is set to 1, system performs

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selection stop.

【G2561.4】Flag of interpreter reset.

【G2561.5】Flag of program rerun.

【G2561.6】Flag of MDI resetting to program header

【G2561.7】Flag of interpreter data recovery.

【G2561.8】Flag of interpreter data save.

【G2561.9】Exact-stop check.

【G2561.10】Flag of user motion control.

【G2561.11】Flag of external interruption.

【G2561.12】Turn on handwheel interruption.

【G2561.14】Flag of program modification.

【G2561.15】Coordinate of workpiece or tool changes, require to re-explain.

【G2562.0】S instruction response word of No.1 spindle.

【G2562.1】S instruction response word of No.2 spindle.

【G2562.2】S instruction response word of No.3 spindle.

【G2562.3】S instruction response word of No.4 spindle.

【G2562.8】Feed direction of trial cut by handwheel. 0 is moving forward, 1 is

retracting.

【G2562.10】Spindle speed check.

【G2560.10】Flag of panel reset. PLC discovers whether system is resetting by

detecting this flag.

【G2560.11】Emergency stop, to set channel of emergency stop.

【G2562.11】MST lock.

【G2562.12】Spindle is not started.

【G2562.13】Spindle speed doesn’t reach.

【G2562.14】Following start.

【G2562.15】Trial cut by handwheel. Use handwheel rate.

【G2563】T instruction.

【G2564】Feedrate override.

【G2565】Rapid traverse override.

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【G2566/67/68/69】Spindle overrise. Overrise of four spindles in channel.

【G2570/71/72/73/74/75/76/77】Spindle output instruction, output instructions

of four spindles in channel. After obtaining spindle rotation speed

(F2570-F2577), PLC calculates spindle override, and outputs spindle instruction.

In servo spindle, the output is spindle rotation, and in converter spindle, the

output is DA value.

【G2578】F2578.1 imaginery axis control.

【G2579】Machined-part counts

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【G2580/81】Mask in protected area.

【G2582】G31 number. When G31 execution is interrupted, the number of

interrupted G31.

【G2584/85/86/87】User bit input

【G2588~2607】User value input.

【G2608~2615】M code response of channel. When PLC is not executing M

code, set to -1; when PLC is executing M code, set to -2; when PLC has

executed M code, set to the currently executed M code.

【G2616】T code response of channel. When PLC has executed T code, set to

the currently executed T code; otherwise, set to -1.

【G2617】Tangent following of tool.

【G2636.0】Channel reset (PLC sets register, and notifies HMI to reset channel.)

【G2636.3】IRQ control

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5. Status word and control word programming

【G2636.4】No channel reset【Reset button is invalid】

【G2636.5】Life timing/counting pause.

【G2560.15】Channel data save

【G2561.0】Interpreter start.

【G2637】Subprogram calling start.

【G2638】Counting of tool changing.

【G2970】Flag of system activity channel.

【G2978】System activity control channel

【G2980~2989】Control word of handwheel【previous axis selection】

【G2990~2999】Display output of handwheel.

【G3010~3025】External alarm of PLC (External alarm of PLC, and 8*32=256

external alarms exist concurrently).

【G3040~3055】External event of PLC (external event of PLC, and 8*32=256

external events exist concurrently).

【G3056~3070】External reminder of PLC (external reminder of PLC, and

8*32=256 external events exist concurrently).

【G3080~3099】Temperature sensor value.

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HNC-8-PLC Component specification

5. Status word and control word programming

Control of Feed Axis and Spindle

Example

Ladder

diagram

Function

It is used to control the movement of feed axis, and the spindle rotation. Set the

current channel mode to manual mode, if you press Axis selection, and positive

or negative movement button, the moving status of the current axis will be set,

thus the axis will move; if you press spindle rotation (CW or CCW) button, the

rotation direction of the spindle will be set.

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HNC-8-PLC Component specification

6. Extended function module

NC Function

Channel Mode Setting MDST

Format

Paramet

Parameter

Data

Storage

Properti

Explanation

form

type

area

<Addres

INT

Constant

Channel No.

s 1>

Pre ○

Constant, F,

<Addres

Work mode

Post ×

INT

G, R, W, D,

s 2>

value

P, B

Function

Set the work mode of the current channel (Auto, Single-block, Manual,

Increment, Reference home, Handwheel, PMC)

Parameter

Refere

Work mode

Single-

Manu

Incre

Hand

Auto

nce

PMC

Parameter

block

ment

wheel

home

D2□□□

Supplemen

If one of channel state is axis homing, switching mode will not be allowed.

tary note

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HNC-8 Numerical Control System Software. Maual of PLC Programming (V1.24) - page 6