FANUC Series 0i-MODEL F Plus. CONNECTION MANUAL (FUNCTION)

9. AUXILIARY FUNCTION

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The same multiplication factor is used for both of metric input and inch input.

A multiplication factor used for inch input is 10 times greater than that used for
metric input.

When the second auxiliary function is specified in the calculator-type decimal point input
format or with a decimal point, the value output onto the code signal is a specified value
multiplied by a value indicated below.

Increment system

Parameter AUX=0

Parameter AUX=1

Metric
input
system

IS-A for reference axis

100 times

IS-B for reference axis

1000 times

IS-C for reference axis

10000 times

Inch input
system

IS-A for reference axis

100 times

1000 times

IS-B for reference axis

1000 times

10000 times

IS-C for reference axis

10000 times

100000 times

3411

M code preventing buffering 1

3412

M code preventing buffering 2

3413

M code preventing buffering 3

3420

M code preventing buffering 10

[Input type] Parameter input

[Data type] 2-word path

[Valid data range] 3 to 99999999

Set M codes that prevent buffering the following blocks. If processing directed by an M
code must be performed by the machine without buffering the following block, specify
the M code.
M00, M01, M02, and M30 always prevent buffering even when they are not specified in
these parameters.

3421

Range specification 1 of M codes that do not perform buffering (lower limit)

3422

Range specification 1 of M codes that do not perform buffering (upper limit)

3423

Range specification 2 of M codes that do not perform buffering (lower limit)

3424

Range specification 2 of M codes that do not perform buffering (upper limit)

3425

Range specification 3 of M codes that do not perform buffering (lower limit)

3426

Range specification 3 of M codes that do not perform buffering (upper limit)

3427

Range specification 4 of M codes that do not perform buffering (lower limit)

3428

Range specification 4 of M codes that do not perform buffering (upper limit)

3429

Range specification 5 of M codes that do not perform buffering (lower limit)

3430

Range specification 5 of M codes that do not perform buffering (upper limit)

3431

Range specification 6 of M codes that do not perform buffering (lower limit)

3432

Range specification 6 of M codes that do not perform buffering (upper limit)

[Input type] Parameter input

[Data type] 2-word path

[Valid data range] 3 to 99999999

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When a specified M code is within the range specified with parameters Nos. 3421 and
3422, 3423 and 3424, 3425 and 3426, 3427 and 3428, 3429 and 3430, or 3431 and 3432,
buffering for the next block is not performed until the execution of the block is
completed.

NOTE

M00, M01, M02, and M30 are M codes that do not perform
buffering, regardless of parameter setting.

M98, M99, M codes for calling subprograms, and M codes for
calling custom macros are M codes that performs buffering,
regardless of parameter setting.

3436

Range specification 1 of second auxiliary function codes that do not perform buffering (lower limit)

3437

Range specification 1 of second auxiliary function codes that do not perform buffering (upper limit)

3438

Range specification 2 of second auxiliary function codes that do not perform buffering (lower limit)

3439

Range specification 2 of second auxiliary function codes that do not perform buffering (upper limit)

[Input type] Parameter input

[Data type] 2-word path

[Valid data range] 1 to 99999999

Set the upper limit and lower limit of a series of second auxiliary function codes that do
not perform buffering.
These parameters are invalid if the setting of an upper limit conflicts with the setting of a
lower limit.

3450

BDX

AUP

[Input type] Parameter input

[Data type] Bit path

#0 AUP

The second auxiliary function specified in the calculator-type decimal point input format,

with a decimal point, or with a negative value is:
0:

Disabled.

Enabled.

If the second auxiliary function is specified after setting this bit to 0, the following
operation results:
1.

When a value is specified without a decimal point

A specified value is output onto the code signal without modification, regardless of
the setting of the calculator-type decimal point input format (with bit 0 (DPI) of
parameter No. 3401).

When a value is specified with a decimal point

The alarm PS0007, “ILLEGAL USE OF DECIMAL POINT” is issued.

When a negative value is specified

The alarm PS0006, “ILLEGAL USE OF MINUS SIGN” is issued.

#7 BDX

When ASCII code is called using the same address as the address for the second auxiliary

function (specified by parameter No. 3460), this  parameter prevents the difference
between the argument unit used when the  second auxiliary function is enabled (bit 2
(BCD) of parameter No.8132 is 1)  and the unit  when the function is disabled (bit 2
(BCD) of parameter Np.8132 is 0).

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When bit 0 (AUP) of parameter No. 3450 is set to 1, the argument unit differs,
depending on whether the second auxiliary function is enabled or disabled.

The same argument unit is used. (The unit applied when the second auxiliary
function is enabled is used.)

3460

Second auxiliary function specification address

[Input type] Parameter input

[Data type] Byte path

[Valid data range] 65to67, 85to87

Specify which of A, B, C, U, V, and W is to be used as the address for specifying the
second auxiliary function. If an address used as an axis name is specified, the second
auxiliary function is disabled.

Name

Setting value

Address B is assumed when a value other than the above is set.
However, the name U, V, or W can be used with the T series only when G code system B
or C is used. When a value from 85 to 87 is specified with G code system A, the
specification address for the second auxiliary function is B.

11290

M code preventing buffering 11

11291

M code preventing buffering 12

11292

M code preventing buffering 13

11299

M code preventing buffering 20

[Input type] Parameter input

[Data type] 2-word path

[Valid data range] 0 to 99999999

Note

NOTE

1 When a move command and auxiliary function are specified in the same block,

the commands are executed in one of the following two ways:
(1) Simultaneous execution of the move command and auxiliary function

commands.

(2) Executing auxiliary function commands upon completion of move command

execution.

The selection of either sequence depends on the sequence of PMC.

2 When the 2nd auxiliary function is provided, the address used for specifying the

2nd auxiliary function (B or the address specified with parameter No. 3460)
cannot be used as an axis address.

3 The block following M00, M01, M02 and M30, is not read into the input buffer

register, if present. Similarly, ten M codes which do not buffer can be set by
parameters Nos. 3411 to 3420 and 11290 to 11299.

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NOTE

4 For M00 and M01, auxiliary function code signal, auxiliary function strobe signal,

and M decode signals are only sent; the control of program stop and optional
stop shall be designed on the PMC side.

5 When the automatic operation is stopped by M02 or M30, it is necessary to send

the external reset signal from the machine side to the CNC, instead of the FIN
signal. When the external reset signal is returned against the M02 or M30, the
control returns to the top of the program recently executed, and enters the reset
state. When the FIN signal is returned, the control returns to the beginning of the
program recently executed, and executes it from the top.

6 In programmable data entry (G10)/programmable parameter entry (G10/G11)

command blocks and modes, auxiliary function code (M, S, T, and B) commands
are disabled. If a specified code is not in the G10 command format, alarm
PS1144, "G10 FORMAT ERROR", is issued.

Alarm and message

Number

Message

Description

PS0003

TOO MANY DIGIT

Data entered with more digits than permitted in the NC
instruction word.
The number of permissible digits varies according to the
function and the word.

PS0006

ILLEGAL USE OF MINUS SIGN

A minus sign (–) was specified at an NC instruction word or
system variable where no minus signal may be specified.

PS0007

ILLEGAL USE OF DECIMAL POINT

A decimal point (.) was specified at an address where no
decimal point may be specified, or two decimal points were
specified.

Reference item

Manual name

Item name

OPERATOR’S MANUAL (B-64694EN)

Auxiliary function (M code)
2nd auxiliary function (B code)

9.2

AUXILIARY FUNCTION LOCK

Overview

Inhibits execution of a specified M, S, T and B function. That is, code signals and strobe signals are not
issued. This function is used to check a program with machine lock.

Signal

Auxiliary function lock signal AFL<Gn005.6>

[Classification] Input signal

[Function] This signal selects auxiliary function lock. That is, this signal disables the execution of

specified M, S, T, and B functions.

[Operation] When this signal turns to “1”, the control unit functions as described below.

(1) The control unit does not execute M, S, T, and B functions specified for memory

operation, DNC operation, or MDI operation. That is, the control unit stops the
output of code signals and strobe signals (MF, SF, TF, BF).

(2) If this signal turns to “1” after code signal output, the output operation is executed in

the ordinary manner until its completion (that is, until the FIN signal is received, and
the strobe signal turns to “0”).

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(3) Among the auxiliary functions, M00, M01, M02, and M30 are executed even when

this signal is “1”. All code signals, strobe signals, decode signals are output in the
ordinary manner.

(4) Among the auxiliary functions, even when this signal is “1”, those functions (M98

and M99) that are executed in the control unit without outputting their execution
results are executed in the ordinary manner.

CAUTION

Even when this signal is “1”, spindle analog output or spindle serial
output is executed.

Auxiliary function lock check signal MAFL<Fn004.4>

[Classification] Output signal

[Function] This signal reports the state of the auxiliary function lock signal AFL.

[Output cond.] This signal turns to “1” when:

The auxiliary function lock signal AFL is “1”

This signal turns to 0 when:
-

The auxiliary function lock signal AFL is “0”

Signal address

Gn005

AFL

Fn004

MAFL

Reference item

Manual name

Item name

OPERATOR’S MANUAL (B-64694EN)

Machine lock and auxiliary function lock

9.3

MULTIPLE M COMMANDS IN A SINGLE BLOCK

Overview

So far, one block has been able to contain only one M code. However, this function allows up to three M
codes to be contained in one block, when bit 7(M3B) of parameter No. 3404 is set to 1. And, Up to five
M codes can be specified in a block, when bit 5(M5B) of parameter No. 11630 is set to 1.
Up to five M codes specified in a block are simultaneously output to the machine (PMC). This means that
compared with the conventional method of a single M command in a single block, a shorter cycle time
can be realized in machining.

(Example)

One M command in a single block

Multiple M commands in a single block

M40;
M50;
M60;
M70;
M80;

G28G91X0Y0Z0;

M40M50M60 M70M80;

G28G91X0Y0Z0;

:
:
:
:
:

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Explanation

Basic procedure

(1) Assume that "MaaMbbMccMddMee;" was commanded by the program.
(2) The 1st M command (Maa) sends the code signals M00 to M31 in a manner similar to the

conventional one-block single command. The strobe signal MF is set to “1” after a time TMF set by
parameter No. 3010 (Standard setting: 16 msec).

The second M command (Mbb) sends the code signal M200-M231, the third M command (Mcc)
sends the code signal M300-M331, the forth M command (Mdd) sends the code signal M400-M431,
the fifth M command (Mee) sends the code signal M500-M531, and their respective strobe signals
MF2, MF3, MF4 and MF5 are set to “1”.

Furthermore, the three code signals are sent simultaneously.

The strobe signals MF, MF2, MF3, MF4 and MF5 become “1” at the same time.

The code signal is a binary notation of the program command aa, bb and cc.

(3) On the PMC side, read the code signals corresponding to the respective strobe signals when the

strobe signals become “1”, and perform the appropriate operations.

(4) When the operation of all M commands ends on the PMC side, the end signal (FIN) is set to “1”.
(5) When the completion signal stays “1” for a time (TFIN) set by parameter No. 3011 (Standard: 16

msec), all strobe signals (MF, MF2, MF3, MF4 and MF5) are set to “0” at the same time and the
reception of completion signal is reported.

(6) On the PMC side, when MF, MF2, MF3, MF4 and MF5 are set to “0”, the completion signal is set to

“0”.

A time chart for this procedure is shown below (Fig. 9.3):

TFIN

TMF

M command (MaaMbbMccMddMee;)
Code signals

M00 to M31

Strobe signal

PMC side operation

Code signals

M200 to M231

Strobe signal

MF2

PMC side operation

Code signals

M300 to M331

Strobe signal

MF3

PMC side operation

Code signals

M400 to M431

Strobe signal

MF4

PMC side operation

Code signals

M500 to M531

Strobe signal

MF5

PMC side operation

End signal FIN

Fig. 9.3

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M code preventing buffering

Usually in multiple M commands in a single block, the second M command to the fifth M command
cannot be set as M code preventing buffering. By setting bit 0 (MMB) of parameter No. 11658 to 1, the
second M command to the fifth M command can be set as M code preventing buffering by any of the
following parameters.

•

Parameters Nos. 3411 to 3420

•

Parameters Nos. 3421 to 3432

•

Parameters Nos. 11290 to 11299

Signal

2nd, 3rd, 4th, 5th M function code signals

When three M code in a single block is effective

（

bit 7(M3B) of parameter No. 3404 is set to 1

）

M200 to M215<Fn014 to Fn015>,M300 to M315<Fn016 to Fn017>

When five M code in a single block is effective

（

bit 5(M5B) of parameter No. 11630 is set to 1

）

M200 to M231<Fn014 to Fn017>, M300 to M331<Fn564 to Fn567>
M400 to M431<Fn568 to Fn571>, M500 to M531<Fn572 to Fn575>

2nd, 3rd, 4th, 5th M Function strobe signals

MF2 <Fn008.4>,MF3<Fn008.5>,MF4<Fn008.6>,MF5<Fn008.7>

[Classification] Output signal

[Function] Indicates that second, third, forth and fifth auxiliary functions have been issued.

[Output cond.] For the output conditions and procedure, see the description of “Basic Procedure” above.

Signal address

Fn008

MF5

MF4

MF3

MF2

Fn014

M207

M206

M205

M204

M203

M202

M201

M200

Fn015

M215

M214

M213

M212

M211

M210

M209

M208

When three M code in a single block is effective

（

bit 7(M3B) of parameter No. 3404 is set to 1

）

Fn016

M307

M306

M305

M304

M303

M302

M301

M300

Fn017

M315

M314

M313

M312

M311

M310

M309

M308

When five M code in a single block is effective

（

bit 5(M5B) of parameter No. 11630 is set to 1

）

Fn016

M223

M222

M221

M220

M219

M218

M217

M216

Fn017

M231

M230

M229

M228

M227

M226

M225

M224

Fn564

M307

M306

M305

M304

M303

M302

M301

M300

Fn565

M315

M314

M313

M312

M311

M310

M309

M308

Fn566

M323

M322

M321

M320

M319

M318

M317

M316

Fn567

M331

M330

M329

M328

M327

M326

M325

M324

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Fn568

M407

M406

M405

M404

M403

M402

M401

M400

Fn569

M415

M414

M413

M412

M411

M410

M409

M408

Fn570

M423

M422

M421

M420

M419

M418

M417

M416

Fn571

M431

M430

M429

M428

M427

M426

M425

M424

Fn572

M507

M506

M505

M504

M503

M502

M501

M500

Fn573

M515

M514

M513

M512

M511

M510

M509

M508

Fn574

M523

M522

M521

M520

M519

M518

M517

M516

Fn575

M531

M530

M529

M528

M527

M526

M525

M524

Parameter

3404

M3B

[Input type] Parameter input

[Data type] Bit path

#7 M3B

The number of M codes that can be specified in one block

One

Up to three

11630

M5B

[Input type] Parameter input

[Data type] Bit path

#5 M5B

The number of M codes that can be specified in one block

One ( up to three when bit 7(M3B) of parameter No. 3404 is set to 1)

Up to five

11658

MMB

[Input type] Parameter input

[Data type] Bit path

#0 MMB

In multiple M commands in a single block, if any of the second M command to the fifth

M command is specified by any of parameters Nos. 3411 to 3420, parameters Nos. 3421
to 3432 or parameters Nos. 11290 to 11299, the M command is:
0:

Not recognized as M code preventing buffering

Recognized as M code preventing buffering

CAUTION

1 Regardless of setting of bit 0 (MMB) of parameter No. 11658, the

first command in multiple commands in a single block can be set as
M code preventing buffering.

FANUC Series 0i-MODEL F Plus. CONNECTION MANUAL (FUNCTION) - page 185