gsk GSK980TD User Manual

Download

Page 1

GSK980TD Turning CNC

PLC User Manual

GSK CNC Equipment

Page 2

Page 3

Book 1 PROGRAMMING

PLC specification, PLC address, ladder

rammin

Book 2 FUNCTION

PLC function control logic and relative signals

Book 3 CNC CONFIGRUTION SOFTWARE

GSKCC software and usage

Book 2 FunctionBook 1 Pro

Book 3 CNC Configuration software

APPENDIX

Appendix 1：input signal（X）……………………………………………appendix-1 Appendix 2：output signal（Y）………………………………………….appendix-2 Appendix 3：G, F signal……………………….…………………………. appendix-3 Appendix 4：GSK980TD standard function configuration……………. appendix-8

A endix

Page 4

Page 5

Book 1 Pro

BOOK 1

rammin

PROGRAMMING

Page 6

Page 7

Contents

Chapter 1 SEQUENTIAL PROGRAM ........................................................................................Ⅰ-1

1.1 PLC SPECIFICATION....................................................................................................Ⅰ-1

1.2 STRUCTURE of SEQUENTIAL PROGRAM ...............................................................Ⅰ-1

1.2.1 Subprogram............................................................................................................Ⅰ-1

1.2.2 Subprogram Embedding ........................................................................................Ⅰ-2

1.2.3 Conditional Branch................................................................................................ Ⅰ-3

1.3 EXECUTING SEQUENTIAL PROGRAM....................................................................Ⅰ-3

1.3.1 Execution Process of Sequential Program............................................................. Ⅰ-3

1.3.2 Cycle Execution of Sequential Program................................................................Ⅰ-4

1.3.3 Priority Order of Executing Sequential Program...................................................Ⅰ-4

1.4 PROCESSING INPUT/OUTPUT SIGNAL....................................................................Ⅰ-5

1.4.1 Processing Input Signal..........................................................................................Ⅰ-5

1.4.2 Processing Input Signal..........................................................................................Ⅰ-6

1.4.3 Synchronous Procession of Short Pulse Signal ..................................................... Ⅰ-7

1.4.4 Interlock Signal......................................................................................................Ⅰ-7

1.5 EDITING SEQUENTIAL PROGRAM...........................................................................Ⅰ-7

1.5.1 Distributing Interface (Step 1)...............................................................................Ⅰ-8

1.5.2 Editing Ladder (Step 2).......................................................................................... Ⅰ-8

1.5.3 Debugging Ladder (Step 3).................................................................................... Ⅰ-8

1.5.4 Program Editing Limit........................................................................................... Ⅰ-8

Chapter 2 ADDRESS.................................................................................................................... Ⅱ-1

2.1 MACHINE→PLC ADDRESS（X）..............................................................................Ⅱ-1

2.1.1 X Address in I/O Interface.....................................................................................Ⅱ-2

2.1.2 X Address on Operator Panel.................................................................................Ⅱ-2

2.2 PLC→MACHINE ADDRESS（Y）..............................................................................Ⅱ-3

2.2.1 Y Address in I/O Interface .....................................................................................Ⅱ-3

2.2.2 Y Addresses on Operator Panel..............................................................................Ⅱ-4

2.3 PLC→NC ADDRESS（G）...........................................................................................Ⅱ-4

2.4 NC→PLC ADDRESS（F） ...........................................................................................Ⅱ-4

2.5 INTERNAL RELAY ADDRESS.....................................................................................Ⅱ-4

2.6 INFORMATION DISPLAYING REQUEST ADDRESS（A）..................................... Ⅱ-5

2.7 HOLD RELAY ADDRESS（K）...................................................................................Ⅱ-5

2.8 COUNTER ADDRESS（C）.........................................................................................Ⅱ-6

2.9 COUNTER PRESET VALUE ADDRESS（DC）.........................................................Ⅱ-6

2.10 TIMER ADDRESS（T）..............................................................................................Ⅱ-6

2.11 TIMER PRESET VALUE ADDRESS（DT）.............................................................. Ⅱ-7

2.12 DATA LIST ADDRESS（D） ...................................................................................... Ⅱ-7

2.13 LABEL ADDRESS（L） .............................................................................................Ⅱ-8

2.14 SUBPROGRAM NUMBER（P）................................................................................ Ⅱ-8

Chapter 3 PLC BASIC INSTRUCTIONS....................................................................................Ⅲ-1

3.1 LD，LDI，OUT INSTRUCTION.................................................................................. Ⅲ-1

3.2 AND, ANI INSTRUCTION.............................................................................................Ⅲ-2

3.3 OR, ORI INSTRUCTION ...............................................................................................Ⅲ-2

3.4 ORB INSTRUCTION...................................................................................................... Ⅲ-3

3.5 ANB INSTRUCTION......................................................................................................Ⅲ-3

Chapter 4 PLC FUNCTION INSTRUCTIONS ...........................................................................

Ⅳ-1

Book 1 Pro

rammin

Page 8

4.1 END1（END of GRADE ONE PROGRAM）.............................................................. Ⅳ-1

4.2 END2（END of GRADE TWO PROGRAM） ............................................................. Ⅳ-1

Book 1 Pro

rammin

4.3 SET.................................................................................................................................. Ⅳ-2

4.4 RST(RESET)................................................................................................................... Ⅳ-2

4.5 CMP（BINARY COMPARATIVE SET）.....................................................................Ⅳ-3

4.6 TMRB（TIMER）.......................................................................................................... Ⅳ-4

4.7 CTRC（BINARY COUNTER） .................................................................................... Ⅳ-5

4.8 MOVN（BINARY DATA COPY） ............................................................................... Ⅳ-6

4.9 DECB（BINARY ENCODING）.................................................................................. Ⅳ-7

4.10 CODB（BINARY CODE CONVERSION）............................................................... Ⅳ-7

4.11 JMPB（PROGRAM JUMPING） ............................................................................... Ⅳ-9

4.12 LBL（PROGRAM JUMPING LABEL）.................................................................... Ⅳ-9

4.13 CALL（SUBPROGRAM CALLING）..................................................................... Ⅳ-10

4.14 SP（START of SUBPROGRAM）, SPE（END of SUBPROGRAM） .................. Ⅳ-10

4.15 ROTB（BINARY ROTATION CONTROL） ...........................................................

4.16 PARI（PARITY CHECK） ........................................................................................ Ⅳ-13

4.17 ADDB（BINARY DATA ADDING）........................................................................ Ⅳ-14

4.18 SUBB（BINARY DATA SUBTRACTING）............................................................Ⅳ-15

4.19 DIFU（DRIFT UP SET） .......................................................................................... Ⅳ-16

4.20 DIFD（DRIFT DOWN SET）................................................................................... Ⅳ-16

4.21 MOVE（AND）......................................................................................................... Ⅳ-17

4.22 AL T（ALTERNATIVE OUTPUT） .......................................................................... Ⅳ-18

GSK980TD Turning Machine CNC System

Ⅳ-11

Page 9

Chapter 1 Sequential Program

Chapter 1 SEQUENTIAL PROGRAM

1.1 PLC SPECIFICATION

For different CNC PLC, there are different program capacity, processing speed, function instructions and nonvolatile memory addresses. Specifications of GSK980TD PLC are as follows:

Specification Programming language Programming software Programming grades Executive cycle of grade one program Average processing time of basic instruction Max. step of program Programming instruction

Internal relay address（R） R0000～R0999 Information displaying request address（A） A0000～A0024 Timer address （T） T0000～T0099 Counter address（C） C0000～C0099

Programming address

Data tablet address（D） D0000～D0999 Hold relay address（K） K0000～K0039 Counter preset value address（DC） DC0000～DC0099 Timer preset value address（DT） DT0000～DT0099 Subprogram address（P） P0000～P9999 Label address （L） L0000～L9999 Machine→PLC address（X） X0000～X0029 PLC→machine address（Y） Y0000～Y0019 CNC→PLC address （F） F0000～F0255 PLC→CNC address（G） G0000～G0255

980TD-PLC Chinese ladder GSKCC.exe 2 8ms <2μs 5000 steps Basic instruction +function instruction

Book 1 Pro

rammin

1.2 STRUCTURE of SEQUENTIAL PROGRAM

Sequential program is defined to logically control the machine and relative devices according to sequence of ladder. The sequence of ladder is compiled in a traditional PLC but GSK980TD CNC PLC is integrated by traditional one and advanced structured programming, employed with subprogram, embedded subprogram and conditional branch，and with apparent advantages compared to the traditional.

1.2.1 Subprogram

In GSK980TD CNC PLC program, a special subprogram can be called according to requirements of programming. For example, subprogram P0001 can be called when contactor X0000.0 is closed as follows:

Ⅰ-1

Page 10

GSK980TD Turning Machine CNC System

Book 1 Pro

Call subprogram P0001

rammin

Subprogram P0001

1.2.2 Subprogram Embedding

GSK980TD CNC PLC can realize 20 grades subprogram embedding as the following figure. Subprogram P0001 can be called when contractor X0000.0 is closed in main program; subprogram P0002 can be called when contractor X0002.0 is closed in the subprogram P0001.

Subprogram P0001

Call subprogram P0002

Ⅰ-2

Page 11

Chapter 1 Sequential Program

Subprogram P0002

Book 1 Pro

1.2.3 Conditional Branch

The system can judge whether the setting conditions to execute a corresponding subprogram are satisfactory when a main program is executed circularly, otherwise the system executes subprograms in order as the above-mentioned figure.

1.3 EXECUTING SEQUENTIAL PROGRAM

The edited sequential programs(ladder program)are downloaded to 980TD by serial, CNC reads the ladder and converts into some format identified by it after it is switched on again, and then CPU decodes and operation processes them to store into RAM, and last reads every instruction in memory to execute it by arithmetical operation.

1.3.1 Execution Process of Sequential Program

rammin

PLC sequence control is executed by software and there is different from general relay circuit, and so its method

is understandingly considered in editing PLC sequential programs.

Every relay can output simultaneously for general relay control circuit as the following figure. Y0002.3 and Y0002.5 output simultaneously when contactor X0000.0, X0002.0 and X0002.2 are closed; in PLC sequence control, every relay outputs in order. For example, Y0002.3 outputs and then Y0002.5 does when X0000.0, X0002.0 and X0002.2 are closed, namely, outputs are executed in order as ladder.

Ⅰ-3

Page 12

1.3.2 Cycle Execution of Sequential Program 1.3.2 Cycle Execution of Sequential Program

GSK980TD Turning Machine CNC System

Book 1 Pro

rammin

Cycle execution of sequential program is defined that PLC executes ladder from its home to end, and again

Cycle execution of sequential program is defined that PLC executes ladder from its home to end, and again from its home to end after the run is completed.

from its home to end after the run is completed. Processing cycle is defined to runtime of ladder from home to end. The shorter the processing cycle is, the

Processing cycle is defined to runtime of ladder from home to end. The shorter the processing cycle is, the stronger the response of signal is.

stronger the response of signal is.

1.3

.3 Priority Order of Executing Sequential Program 1.3.3 Priority Order of Executing Sequential Program

GSK980TD PLC programs are divided into grade one and grade two programs which processing cycles are

GSK980TD PLC programs are divided into grade one and grade two programs which processing cycles are different. The first one is executed per 8ms to do with short pulse signal with quick reaction, and the second one

different. The first one is executed per 8ms to do with short pulse signal with quick reaction, and the second one is executed per 8n(ms),in which n is fraction times. PLC divides the grade two program into n blocks according

is executed per 8n(ms),in which n is fraction times. PLC divides the grade two program into n blocks according to runtime, and executes one block per each 8(ms).

to runtime, and executes one block per each 8(ms).

End of grade one

rogram

Fraction 1: 0004～0006

Fraction 1: 0007～0011

End of grade one

rogram

Fraction of the grade two program is to execute the first and execution process is as the following figure when the fraction number is n; T11, T12, T1n are runtime to execute the first. T21, T22, T2n separately corresponds to runtime of No. n block in executing the second when No. n cycle is execute. Tc1, Tc2, Tcn separately corresponds to hold time by CNC when No. n cycle is executed.

The program returns to its beginning to continue execution when the last fraction block of the second is executed completely. The first is executed every 8ms, No. n block of the second is done every 8n, and runtime

Ⅰ-4

Page 13

Chapter 1 Sequential Program

of one cycle is 8n(ms). The more the fraction number of the second is, the longer the runtime of one cycle is. of one cycle is 8n(ms). The more the fraction number of the second is, the longer the runtime of one cycle is.

1ms

Block 1

T21

8ms

1ms

Block 2

T22

8ms

T1nT12 T11

1ms

Block n

T2n

8ms

Block 1

Tcn Tc2Tc1

1.4 PROCESSING INPUT/OUTPUT SIGNAL 1.4 PROCESSING INPUT/OUTPUT SIGNAL

Processing of input/output signal is as the following figure. X signal of machine I/O interface and F signal of

Processing of input/output signal is as the following figure. X signal of machine I/O interface and F signal of NC are separately input to input memories at machine side and NC side, and directly used by the first grade

NC are separately input to input memories at machine side and NC side, and directly used by the first grade program; they separately input to synchronous input memories are used by the second. Output signals of the

program; they separately input to synchronous input memories are used by the second. Output signals of the first and the second are separately output to output memories at NC side and machine side，and then separately

first and the second are separately output to output memories at NC side and machine side，and then separately output to NC and I/O interface of machine

output to NC and I/O interface of machine

Signal states of the above-mentioned memories are displayed by diag no st i c inte rfa ce, an d th e diagn o s tic nu mber

Signal states of the above-mentioned memories are displayed by diag no st i c inte rfa ce, an d th e diagn o s tic nu mber corresponds to address number of program.

corresponds to address number of program.

Book 1 Pro

rammin

PLC

侧同步输入存储器

Syn. input memory at CN side

Syn. input memory at machine side

机床侧同步输入存储器

Grade one program

第一级程序

侧输入存储器

Input memory at CN side

N C

Machine

机

床

侧输出存储器

Output memory at CN side

机床侧输入存储器

Input memory at machine side

Output memory at machine side

机床侧输出存储器

Grade two program

第二级程序

1.4.1 Processing Input Signal 1.4.1 Processing Input Signal

A：Input signal of grade one program: A：Input signal of grade one program: Input memory at NC side is scanned every 8ms and stores F signal from NC, and the system directly use its state

Input memory at NC side is scanned every 8ms and stores F signal from NC, and the system directly use its state

when the first is executed.

B：Input signal of grade two program: B：Input signal of grade two program: Input signal of the second is the one stored by the first. The first directly use F and X signal and so the input Input signal of the second is the one stored by the first. The first directly use F and X signal and so the input

Ⅰ-5

Page 14

signal of the second lags the first one and its max. lag time is runtime of one grade two program. signal of the second lags the first one and its max. lag time is runtime of one grade two program.

C：Difference of input signal states of the first and the second: C：Difference of input signal states of the first and the second:

Book 1 Pro

For the same input signal, its states are different in the first and the second when PLC reads input signals,

For the same input signal, its states are different in the first and the second when PLC reads input signals, because the first reads input memories at NC side and machine side but the second reads the synchronous input

because the first reads input memories at NC side and machine side but the second reads the synchronous input memory at NC side and ones at machine side. The input signal of the second lags behind that of the first and its

memory at NC side and ones at machine side. The input signal of the second lags behind that of the first and its lag time is 8nms which should be noted.

lag time is 8nms which should be noted.

rammin

Example： Example：

GSK980TD Turning Machine CNC System

End of grade one

rogram

Fraction1: 0003～0005

Fraction1: 0006～0007

End of grade two

rogram

When the lag time is the first 8ms, X0001.0=1 and the system executes the first Y0001.0=1. When the system starts to execute the second, X0001.0＝1 inputs to the synchronous input memory and starts to execute the first block of the fractional second.

When the lag time is the second 8ms, X0001.0=0 and the system executes the first one Y0001.0=1. And then the system executes the second block of the fractional second but X0001.0 =1 which state is still the previous synchronous input memory and Y0002.3=1 after execution.

1.4.2 Processing Input Signal

A：Signal to NC

PLC transmits output signal to the output memory at NC side every 8ms, and then directly outputs to NC.

B：Signal to machine

PLC transmits output signal to the output memory at machine side, and then directly outputs to memory every 2ms.

Ⅰ-6

Page 15

Chapter 1 Sequential Program

1.4.3 Synchronous Procession of Short Pulse Signal 1.4.3 Synchronous Procession of Short Pulse Signal

The first is used for processing the short pulse signal. When it is less than 8ms, namely when the system

The first is used for processing the short pulse signal. When it is less than 8ms, namely when the system executes the first, the input signal state may be changed, which may execute programs by mistake.

executes the first, the input signal state may be changed, which may execute programs by mistake.

End of grade one

rogram

As above, X0001.3=0 is changed to X0001.3=1 after Y0002.3=1 is executed, and if the system executes the next line of ladder and Y0003.3=1, at the moment Y0002.3=1 and Y0003.3=1. To avoid the above, process synchronously the short pulse signal as follows:

Book 1 Pro

rammin

End of the first grade program

After the program is executed synchronously and when X0001.3=1，Y0003.3=1，Y0002.3=0， X0001.3=0，

Y0002.3=1，and Y0003.3=0，but Y0003.3=1 or Y0002.3=1.

1.4.4 Interlock Signal

For safety, the signals must be employed with soft interlock in sequence control, and with hard interlock to relay control circuit of power electric box at machine side at the same time. Because the hardware is failure, the interlock is invalid in executing sequential program even if it is employed logically with soft interlock, which can ensure the operator is not injured and the machine is prevented from damage.

1.5 EDITING SEQUENTIAL PROGRAM

Edit the sequential program from ladder which is composed of relay contacts, symbols and function instructions. Logic relationship in ladder consists of sequential program which is edited by two methods: one is employed with input to use program instructions and the other is with relay symbols by their corresponding contactor, symbol and function instruction. Edit the sequential program employed with the ladder format instead of mnemonic code language when the system is employed with the relay symbol.

In actual editing sequential program, use programming instruction or ladder to edit it according to PLC. In the User Manual, the system is employed with ladder as follows:

Ⅰ-7

Page 16

1.5.1 Distributing Interface (Step 1)

GSK980TD Turning Machine CNC System

Book 1 Pr

The interfaces can be distributed after control target is defined and the corresponding input/output signal points are counted. Refer to input/output interface signal list

1.5.2 Editing Ladder (Step 2)

rammin

Edit the software GSKCC.EXE by 980TD ladder to represent the required control operations of machine. Counter, timer which are not done by relay symbol is represented by the specified function instructions. The edited ladder is downloaded to CNC by serial.

1.5.3 Debugging Ladder (Step 3)

After the ladder is downloaded to 980TD, the ladder is debugged as follows:

A： emulator

Use one emulator instead of machine to debug it. Machine signal state is represented with switch ON/OFF, and output signal state is done with indicat or ON/OFF. Observe if every indicator on the emulator is correct when executing CNC.

B： CNC diagnosis

Observe if the diagnostic state of every signal is consistent with the function requirement when executing CNC. Check the ladder by checking each function in order.

C： actual run

There may be an unexpected result in the actual debugging machine and so do preventive measures before debugging.

1.5.4 Program Editing Limit

In program, END1 and END2 are needed, which are taken separately as ending character of the first and the second, and END1 must be before END2. The system only supports parallel output instead of multi grades output and there are syntactic errors as follows:

Ⅰ-8

Page 17

Chapter 1 Sequential Program

End of grade one

rogram

Syntactic error: 0002～0003

Book 1 Pro

Syntactic error: 0004

Syntactic error: 0005～0006

Syntactic error: 0007～0009

Syntactic error: 0010～0011

rammin

Ⅰ-9

Page 18

Page 19

Chapter 2 Address

Chapter 2 ADDRESS

Addresses are used for distinguishing signals. Different addresses separately correspond to input/output signal at machine side and CNC side, internal relay, counter, timer, holding relay and data list. An address number is consisted of address type, address number and bit number as follows:

X 0001.6

Bit number

位号

地址号

Address number

地址类型

Address type

Address type: X, Y, R, F, G, K, A, T, DT, DC, C, D, L, P Address number: decimal number to express one byte Bit number: octal number, 0～7 separately expressing byte 0～7 bit of front address number

980TD PLC addresses are divided into fixed addresses and definable addresses. Signal definitions of the fixed addresses cannot be changed and are defined by CNC; the definable addresses can be defined again by user according to the actual requirements. Address types are as follows:

Address Explanation Range

X Machine→PLC X0000～X0029 Y PLC→machine Y0000～Y0019 F NC→PLC F0000～F0255 G PLC→NC G0000～G0255 R Intermediate relay R0000～R0999 D Data register D0000～D0999 C Counter C0000～C0099

T Timer T0000～T0099 DC Counter preset value register DC0000～DC0099 DT Timer preset value register DT0000～DT0099

A Information displaying request signal A0000～A0024

K Hold relay K0000～K0039

L Jump label L0000～L9999

P Subprogram label P0000～P9999

Note: address R900～R999, K30～39 are used for reserved area of CNC program instead of output relay.

Book 1 Pro

rammin

2.1 MACHINE→PLC ADDRESS（X）

980TD PLC X addresses are divided into two types,the first one is X0000.0～X0003.7,which are mainly distributed to CNC XS40 and XS41 I/O interfaces, including fixed addresses and definable addresses,and the second one is X0020.0～X0026.7,which are fixed addresses and mainly be distributed to input keys on operator panel. Other addresses are reserved ones. The value range is 0 or 1.

Ⅱ-1

Page 20

2.1.1 X Address in I/O Interface

GSK980TD Turning Machine CNC System

Book 1 Pro

rammin

13：Y0001.7 12：Y0001.6 11：+24V 10：X0000.5（ESP） 9： X0001.3（ZDEC） 8：X0001.1 7：X0001.4 6：X0001.6 5：X0001.7 4：X0000.0 3：X0000.1 2：X0000.2 1：X0000.3（XDEC）

z Address range: X0000.0～X0003.7 are separately distributed to CNC XS40 and XS41 I/O interface. z Fixed address: X0000.3, X0000.5, X0001.3 separately corresponds to XDEC, ESP, ZDEC signal

Example: ESP signal is can be connected to X0000.5, CNC directly distinguishes signals on it and judge if there

Namely: CNC alarms to emergently stop when X0000.5 is 0; CNC alarms to emergently stop when G8.4 is 0 by PLC control.

Emergent stop signal ESP X0000.5 Deceleration signal of machine reference point return in X direction XDEC X0000.3 Deceleration signal of machine reference point return in Z direction ZDEC X0001.3

z Definable address: their functions can be defined by user according to requirement and used for connecting

with external electric circuit and ladder. Distribution graph of X address in I/O interface is as follows:

which can be directly distinguished by CNC in CNC run.

is ESP signal; CNC alarms to emergently stop when G8.4 signal is valid by PLC control.

Input signal of fixed addresses

Signal Symbol Address

25：COM 24：COM 23：+24V 22：X0000.4 21：X0001.2 20：X0001.0 19：X0001.5 18：COM 17：COM 16：COM 15：COM 14：COM

13：X0002.1 12：X0002.2 11：+24V 10：X0002.3 9：X0002.5 8：X0003.1 7：X0003.3 6：X0003.6 5：X0003.5 4：X0003.7 3：X0003.0 2：X0002.7 1：X0002.0

25：COM 24：COM 23：+24V 22：X0002.4 21：X0002.6 20：X0003.2 19：X0003.4 18：COM 17：COM 16：COM 15：COM 14：COM

XS41（female） XS40（female）

2.1.2 X Address on Operator Panel

Address range: X0020.0～X0026.0 are fixed addresses which correspond to press keys on operator panel and

which signal definitions cannot be changed by user.

Ⅱ-2

Page 21

Chapter 2 Address

Relationship between addresses and press keys is as follows:

X0020 7 6 5 4 3 2 1 0

SKIP

Key

SINGLE

JOG

MPG

AUTO

MDI

Book 1 Pro

EDIT

X0021 7 6 5 4 3 2 1 0

MST MST

Key

DRY

X0022 7 6 5 4 3 2 1 0

Key

X0023 7 6 5 4 3 2 1 0

Key

CCW

JOG

LUR.

STOP

COOLANT

X0024 7 6 5 4 3 2 1 0

Key

PAUSE

X0025 7 6 5 4 3 2 1 0

Key

rammin

TOOL

RUN

X0026 7 6 5 4 3 2 1 0

Key

2.2 PLC→MACHINE ADDRESS（Y）

980TD-PLC Y address are divided into tw o: Y0 00 0.0～Y0003.7 are mainly distributed to CNC XS42 and XS39 I/O interfaces, including fixed address and definable address; Y0004.0～X0009.7 which are mainly distributed to indicators on the operator panel. Other addresses are reserved ones. Their values are 0 or 1.

2.2.1 Y Address in I/O Interface

Address range: Y0000.0～Y0003.7 are separately distributed to CNC XS42 and XS39 I/O interfaces and their

signal definitions can be defined by user according to requirements to connect to external

Ⅱ-3

Page 22

Distribution graph of 980TD output interfaces address is as follows:

Book 1 Pro

rammin

electric circuit and ladder.

1：Y0003.0 2：Y0002.7 3：Y0002.6 4：Y0002.2 5：Y0002.0 6：Y0002.1 7：Y0003.2 8：Y0003.3 9：Y0003.4 10：Y0003.5 11：Y0003.6 12：Y0003.7 13：+24V

14：Y0003.1 15：Y0002.5 16：Y0002.4 17：Y0002.3 18：COM 19：COM 20：COM 21：COM 22：COM 23：COM 24：COM 25：+24V

XS42（male）

GSK980TD Turning Machine CNC System

1：Y0000.0 2：Y0000.2 3：Y0000.4 4：Y0000.6 5：Y0001.0 6：Y0001.1 7：Y0001.2 8：Y0001.3 9：Y0001.4 10：Y0001.5 11：X0000.6 12：X0000.7 13：+24V

XS39（male）

14：Y0000.1 15：Y0000.3 16：Y0000.5 17：Y0000.7 18：COM 19：COM 20：COM 21：COM 22：COM 23：COM 24：COM 25：+24V

2.2.2 Y Addresses on Operator Panel

Address range: Y0004.0～Y0009.0 are fixed addresses which correspond to indicators on the operator panel, and which signal definitions cannot be changed by user. Relationship corresponding to each state indicator is referred to Appendix2: Output signal(Y).

2.3 PLC→NC ADDRESS（G）

Address range: G0000.0～G0255.7, value range: 0 or 1. Refer to Appendix3: G, F signals about definitions of address signals.

2.4 NC→PLC ADDRESS（F）

Address range: F0000.0～F0255.7, value range: 0 or 1. Refer to Appendix3: G, F signal about definitions of address signals.

2.5 INTERNAL RELAY ADDRESS

Address range: R0000.0～R0999.7, value range: 0 or 1. They are zero after CNC is switched on.

Ⅱ-4

Page 23

Chapter 2 Address

Address

number

R0000 R0001

R0899 R0900

R0999

7 6 5 4 3 2 1 0

Definable

addresses

2.6 INFORMATION DISPLAYING REQUEST ADDRESS（A）

Address range: A0000.0～A00024.7 and they are zero after CNC is switched on.

Address number

A0000 A0001

A0024

7 6 543210

Book 1 Pro

rammin

2.7 HOLD RELAY ADDRESS（K）

The address area is used for hold relay and setting PLC parameters and data are saved after the system is switched off. Address range: K0000.0～K0039.7, value range: 0 or 1.

Address

number

K0000 K0001

K0029 K0030

K0039

7 6 5 4 3 2 1 0

Definable addresses

Ⅱ-5

Page 24

GSK980TD Turning Machine CNC System

2.8 COUNTER ADDRESS（C）

Book 1 Pro

The address area is used for storing current counting value of counter and data are saved after the system is switched off. Address range: C0000～C0099, value range: 0～21,4748,3647.

rammin

Address

number

C0000 C0001

C0099

31 30 29 28

2.9 COUNTER PRESET VALUE ADDRESS（DC）

3 2 1 0

The address area is used for storing preset value of counter and data are saved after the system is switched off. Address range: DC0000～DC0099, value range: 0～21,4748,3647.

Address

number

DC0000 DC0001

DC0099

31 30 29 28

3 2 1 0

2.10 TIMER ADDRESS（T）

The address area is used for storing current value of timer and T0000～T0079 are zero after the system is switched on.T0080～T0099 are saved after it is switched off. Value range: 0～21,4748,3647.

Address

number

T0000 T0001

T0099

31 30 29 28

3 2 1 0

Ⅱ-6

Page 25

Chapter 2 Address

2.1 1 TIMER PRESET VALUE ADDRESS（DT）

The address area is used for storing preset value of timer and data are saved after the system is switched off. Address range: DT0000～DT0099 and value range: 0～21,4748,3647.

Address

number

DT0000

DT0099

31 30 29 28

3 2 1 0

2.12 DATA LIST ADDRESS（D）

D0000～D0299 are zero when CNC is switched on. D0300～D0999 are saved after it is switched off. Value range: 0～255.

Address

number

D0000 D0001

D0299 D0300

D0999

7 6 5 4 3 2 1 0

Book 1 Pro

rammin

2.13 LABEL ADDRESS（L）

It is used for specifying jump target label in JMPB and LBL label. Range: L0～L9999

2.14 SUBPROGRAM NUMBER（P）

It is used for specifying the target subprogram number to call in CALL and subprogram number in SP. Range: P0000～P9999

Ⅱ-7

Page 26

Page 27

Chapter 3 PLC Basic Instructions

Chapter 3 PLC BASIC INSTRUCTIONS

Basic instructions are used for editing sequential programs and executing 1-bit operation. There are basic instructions for GSK980TD PLC as follows:

Instruction

name

LD Read normally-open contact X, Y, F, G, R, K, A

LDI Read normally-closed contact X, Y, F, G, R, K, A

OUT Output coil Y, G, R, K, A

AND Normally-open contact in series X, Y, F, G, R, K, A

ANI Normally-closed contact in series X, Y, F, G, R, K, A

OR Parallel normally-open contact X, Y, F, G, R, K, A

ORI Parallel normally-closed contact X, Y, F, G, R, K, A ORB Parallel series circuit block ANB Parallel circuit block in series

3.1 LD，LDI，OUT INSTRUCTION

Function Component

Book 1 Pro

rammin

● Mnemonic code and function

Mnemonic code Function Ladder symbol

LD Read normally-open contact

LDI Read normally-closed contact

OUT Output coil

● Instruction explanation

A: LD, LDI are used for connecting contact to bus bar. Each one can combine with instruction ANB and can be

used at starting point of branch. B: OUT is used for driving output relay, internal relay coil instead of input relay. C: Parallel instruction OUT can be continuously used.

● Programming example

Program explanation：

When X0002.1 is 1, the system outputs Y0003.7 When F0100.3 is 0, the system outputs G0120.0

Ⅲ-1

Page 28

3.2 AND, ANI INSTRUCTION

● Mnemonic code and function

ok 1 Pro

Mnemonic code Function Ladder symbol

GSK980TD Turning Machine CNC System

ram i m

● Instruction explanation AND, ANI can connect one contact in serial. There can be many contacts in serial and the instructions can be used many times.

● Programming example

Program explanation：

Use X0002.1, Use F0100.3 and X0002.1 in series Use X0008.6, and F0100.3 and X0002.1 in series If X0002.1=1, X0008.6=1 and F0100.3 is 0, the system outputs Y0003.7.

AND Normally-open contact in series

ANI Normally-closed contact in series

3.3 OR, ORI INSTRUCTION

● Mnemonic code and function

Mnemonic code Function Ladder symbol

OR Parallel normally-open contact

ORI Parallel normally-closed contact

● Instruction explanation

A: OR, ORI can be connected to one contact in parallel. When more than two contacts are connected in series

and the serial loop is connected with other loop in parallel, the system should use ORB.

B: The system executes OR, ORI from its current step with LD, LDI in parallel.

● Programming example

Ⅲ-2

Page 29

Chapter 3 PLC Basic Instructions

Program explanation： Program explanation： Use X0002.1 Use X0002.1 Use F0100.3 and X0002.1 in series Use F0100.3 and X0002.1 in series If X0002.1=1, and F0100.3 is 0, the system outputs Y0003.7. If X0002.1=1, and F0100.3 is 0, the system outputs Y0003.7.

Book 1 Pro

3.4 ORB INSTRUCTION 3.4 ORB INSTRUCTION

●Mnemonic code and function ●Mnemonic code and function

Mnemonic code Mnemonic code Function Function Ladder symbol Ladder symbol

ORB Parallel series circuit block

● Instruction explanation A: Serial loop block is defined to its loop combined by more than contacts in series. When the serial loop is

connected in parallel, starting point of branch uses LD and its end point uses ORB.

B: ORB is sole instruction without address.

● Programming example

ode

rammin

Program explanation： As above figure, there are three branches(0002,0003,0004) from left bus line to node, and 0002 and 0003 are

serial circuit blocks. There is parallel serial circuit block between bus line and node or among nodes, the following ending of branch use ORB except for the first one. Use OR instruction if the branch 0004 is not serial circuit block.

ORB and ANB are instructions without operation function, representing or, and relationship among circuit

blocks.

3.5 ANB INSTRUCTION

●Mnemonic code and function

Mnemonic code Function Ladder symbol

ANB Parallel circuit block in series

● Instruction explanation

A: Use ANB when the branch loop is serially connected with the previous loop. Use LD, LDI at the starting

Ⅲ-3

Page 30

point of branch, and use ANB to serially connect with the previous loop. point of branch, and use ANB to serially connect with the previous loop.

B: ANB is sole instruction without address. B: ANB is sole instruction without address.

Book 1 Pro

● Programming example ● Programming example

rammin

GSK980TD Turning Machine CNC System

Block 1

Program explanation： As above ladder, ORB represents the parallel serial circuit block in block 2 and ANB represents block 1 and 2 in series.

Block 2

Ⅲ-4

Page 31

Chapter 4 PLC Function Instructions

Chapter 4 PLC FUNCTION INSTRUCTIONS

Some functions are completed by function instructions instead of basic ones. The function instructions in the system are as follows:

Instruction

name

END1 End of grade one program ROTB Binary rotation control END2 End of grade two program DECB Binary decoding

SET Set CODB Binary code conversion RST Reset JMPB Program jumping

CMP Comparative set LBL Program jumping label

CTRC Counter CALL Subprogram calling

TMRB Timer SP Start of subprogram

MOVN Binary Data copy SPE End of subprogram

PARI Parity check DIFU Ascending edge set

ADDB Binary data adding DIFD Descending edge set

SUBB Binary data subtracting MOVE And

ALT Alternative output

Function Instruction

name

Function

Book 1 Pro

rammin

4.1 END1（END of GRADE ONE PROGRAM）

● Instruction function There must be END1 in the sequential program one time, located at the end of grade one program. It should be located at the home of the second when there is no grade one program.

● Ladder format

4.2 END2（END of GRADE TWO PROGRAM）

● Instruction function

There must be END2 at the end of grade two program which representing end of grade two program.

● Ladder format

Ⅳ-1

Page 32

4.3 SET

● Instruction function

ok Pro 1

Specified address is set to 1.

● Ladder format

ramm

GSK980TD Turning Machine CNC System

● Control condition ACT ＝0：add.b is reserved.

＝1：add.b is set to 1.

● Relative parameter add.b：set address bit，which can be a contact or output coil, and add is Y, G, R, K or A.

● Program example:

Explanation: When X0002.1 is 1, R0002.0 is set to 1; when X0002.1 is 0, R0002.0 is reserved.

4.4 RST(RESET)

● Instruction function Specified address is set to 0.

● Ladder format

● Control condition ACT ＝0:add.b is reserved.

＝1:add.b is set to 0.

● Relative parameter add.b：reset address bit ,which can a contact or output coil ,and add is Y, G, R, K or A.

● Program example:

Explanation: When X0002.1 is 0, R0002.0 is reserved; when X0002.1 is 1, R0002.0 is set to 0.

Ⅳ-2

Page 33

Chapter 4 PLC Function Instructions

4.5 CMP（BINARY COMPARATIVE SET）

● Instruction function Compare two binary data and output its result.

● Ladder format

● Control condition ACT ＝0:add.b is reserved.

＝1: compare S1, S2 and output the result as follows:

add.(b+2) add.(b+1) add.(b+0)

S1>S2 0 0 1 S1=S2 0 1 0 S1<S2 1 0 0

● Relative parameter

Length: specify data length, when it is set to 1, 2, 4, the corresponding data length is 1byte, 2bytes,4 bytes.

S1, S2: compare source data 1 with data 2, and the comparative result can be constant or address number(it is not

address bit. For example: add.b is illegal.). Address number is R, X, Y, F, G, K, A, D, T, C, DC and DT.

add.b：it is the comparative result and can be R, Y, G, K and A.

● Relative operation information register:

R900 overflow

● Program example:

Negative Zero

Book 1 Pro

rammin

Explanation: When X0002.1 is 0, the system does not compare the data and R0300.0 is reserved; When X0002.1 is 1, the system compares the data as follows:

R0300.2 R0300.1 R0300.0 R0100>R0200 0 0 1 R0100=R0200 0 1 0 R0100<R0200 1 0 0

Ⅳ-3

Page 34

4.6 TMRB（TIMER） 4.6 TMRB（TIMER）

Book 1 Pro

●

Instruction function ● Instruction function Delay connecting the timer. Delay connecting the timer.

●

Ladder format ● Ladder format

rammin

● Control condition ACT =0：reset TIMER and add.b.

=1：TIMER times from 0, and add.b=1 when TIMER reaches the preset time.

Logic relation is as follows:

● Relative parameter TIMER: timer number, range: T0000～T0099. TIME: timing constant or data register with DT in front. DT range is from 0 21,4748,3647(ms) . add.b：it is timer output address and can be R, Y, G, K and A. TIMER is executed every 8ms and timing with 8ms as unit.

● Program example:

ACT

add.b

GSK980TD Turning Machine CNC System

TIME

Explanation: When X0002.1 is 0, T0002 and R0300.0 are 0;

When X0002.1 is 1, T0002 starts to count, and R0300.0 is set to 1 after it reaches the time set by

DT0004.

Ⅳ-4

Page 35

Chapter 4 PLC Function Instructions

4.7 CTRC（BINARY COUNTER） 4.7 CTRC（BINARY COUNTER）

● Instruction function ● Instruction function

Data in the counter is binary and the functions of CTRC is as follows: Data in the counter is binary and the functions of CTRC is as follows: A: reset counter: it resets count value and the system outputs the corresponding signal when the count value

A: reset counter: it resets count value and the system outputs the corresponding signal when the count value reaches the resetting count value.

reaches the resetting count value. B: ring counter：input the count value signal when the counter reaches the reset value, and count again the

B: ring counter：input the count value signal when the counter reaches the reset value, and count again the counter reset to initial value.

counter reset to initial value. C: adding/subtracting counter: bit bidirectional counter used for addition and subtraction. C: adding/subtracting counter: bit bidirectional counter used for addition and subtraction. D: initial value selection: it can be 0 or 1. D: initial value selection: it can be 0 or 1.

● Ladder format ● Ladder format

Book 1 Pro

rammin

● Control condition ACT is at ascending edge:

Adding: COUNTER counts from its setting initial value, adds the count one time when it reaches the

ascending edge, and O_add.b =1 when it reaches the reset count value. O_add.b =0 when COUNTER is less than NCOUNT; COUNTER resumes and starts to count and O_add.b =0 when it reaches the ascending edge again.

Subtracting: COUNTER subtracts from its setting initial value, subtracts the count one time when it

reaches the ascending edge, and O_add.b =1 when it reaches the reset count value. O_add.b =0 when COUNTER is more than NCOUNT; COUNTER resumes and starts to count and O_add.b =0 when it reaches the ascending edge again.

ACT＝0：

COUNTER and O_add.b are reserved.

● Relative parameter Data format:

R_add.b ：when it is 1 whatever ACT is , COUNTER＝CN0，O_add.b =0. R_add can be X, Y, G, F, R, K, A.

COUNTER: specify the counter number( Cxxx, xxxx is digit(0～99),

0 0 CN0 U/D

Specify adding/subtracting count 0：adding count and counting from 0 1：subtracting count and counting fro

reset value

Specify the counter initial value 0：count from 0 1：count from 1

Ⅳ-5

Page 36

NCOUNT: it is counter preset value(constant) and also can be data register beginning with DC. If it is constant,

Book Pro

O_add.b: when it reaches to the count value, the output is 1 and O_add can be R, Y, G, K and A.

● Program example:

rammin

Explanation: When R0100.0 is 1, C0001=0 and R0500.0=0； When R0100.0 is 0, X0002.1 reaches the drift up one time, C0001 adds the count one time, and

When X0002.1 reaches the drift up again, C0001 is reset to 0 and start to count, and R0500.0 is

GSK980TD Turning Machine CNC System

its value is 0～21,4748,3647.

R0500.0 is 1 if the count reaches 10.

reset to 0.

4.8 MOVN（BINARY DATA COPY）

● Instruction function

Transmit data at source address or specified binary data to destination address.

● Ladder format

● Control condition ACT ＝0：ADD-D is reserved.

＝1：copy the value in ADD-S or constant CON to ADD-D

● Relative parameter

Length : it is the copy data(1, 2, 4 byte).

ADD-S/CON: it is initial byte of source data address or constant, and its address number is R, X, Y, F, G, K, A,

D, T, C, DC and DT.

ADD-D: it is initial byte of target address, and its address number is R, Y, G, K, A, D, T, C, DC, DT.

● Program example:

Explanation：R0100 value is transmitted to G0043 when X0003.3 is 1.

Ⅳ-6

Page 37

Chapter 4 PLC Function Instructions

4.9 DECB（BINARY ENCODING）

● Instruction function DECB can decode the binary code data. When there is the same one between one of 8 successive data and the code data, the corresponding output data is 1; when there is no the same one, the output data is 0. DECB is used for encoding data of M or T function.

● Ladder format

● Control condition

ACT ＝0：reset the 8 data bits of ADD2. ADD2.

＝1：compare the content value of decoding address(ADD1) with 8 successive data beginning with DATA.

When the value of ADD1 is equal to one of 8 data and the output address (ADD2) bit which sequence number is that of equal data in these 8 data is set to 1.

● Relative parameter

Length：specify the length(1, 2, 4) of ADD1. ADD1: it is initial address of encoding and the address number is R, X, Y, F, G, K, A, D, T, C, DC and DT.

. DATA: reference value of comparative constant. ADD2: output comparative result. Its address number is R, Y, G, K and A.

● Program example:

‘

s corresponding

Book 1 Pro

rammin

X0003.3=1： When F0010=8，R0010.0=1；

When F0010=9，R0010.1=1； ………………………… When F0010=15，R0010.7=1

4.10 CODB（BINARY CODE CONVERSION）

● Instruction function

The instruction is used for binary code conversion.

● Ladder format

Ⅳ-7

Page 38

Book 1 Pro

● Control condition ACT ＝0：ADD2 is reserved.

rammin

● Relative parameter

● Program example:

＝1：value of conversing input data addre ss(ADD 1) is taken as list number of conversion list, from which

Converting input data Address ADD1

Length1: binary data length and output address length of conversion data in conversion list, 1-1, 2-2, 4-4 byte. Length2：conversion length, 1-2, 2-4, 3-8, 4-16, 5-32, 6-64, 7-128, 8-256. ADD1：input address of conversion data. Its address has data with only one byte. Its address is R, X, Y, G, F,A,

K, and D.

ADD2：output address of conversion data and its address is R, Y, G, K and D.

GSK980TD Turning Machine CNC System

the conversion data corresponding to the list number is transmitted to output address(ADD2) of conversion data.

Conversion data list

Converting input data

Number Value

……..

……….

Address ADD2

Example

X0003.3=1:

X0003.3＝1, R0100＝0：R0200＝1

X0003.3＝1, R0100＝1：R0200＝2 X0003.3＝1, R0100＝2：R0200＝3 X0003.3＝1, R0100＝3：R0200＝4

Conversion data list

Number

Value

4 003

Ⅳ-8

Page 39

Chapter 4 PLC Function Instructions

4.11 JMPB（PROGRAM JUMPING）

● Instruction function Immediately jump the program to the position set by label with characteristics as follows: jump instructions can use the same label; forbid jumping END1 and END2; forbid jumping subprogram; jump forward or backward.

● Ladder format

Book 1 Pro

rammin

● Control condition

ACT ＝0：do not jump and execute the next instruction following JMPB.

＝1：execute the next instruction following the label after jumping to the specified label.

● Relative parameter

Lx ：specify the jumping target label, label number must be specified with beginning L address t and it can

specify one of L1 to L999.

● Program example:

Explanation: When X0003.3 is 1, the program jumps 0003 and orderly executes from 0004; when X0003.3 is 0, the

system orderly executes the program from 0003.

4.12 LBL（PROGRAM JUMPING LABEL）

● Instruction function

Specify one label in ladder, namely jumping target position specified by JMPB. One Lx is only specified one time by LBL.

● Ladder format

Ⅳ-9

Page 40

● Relative parameter

Book 1 P

Lx ：specify jumping target label. The label number is specified with beginning L address t and it can specify

one of L1 to L999.

4.13 CALL（SUBPROGRAM CALLING）

ra minm

● Instruction function Call the specified subprogram with characteristics as follows: call instructions can use the same subprogram; call instruction can be embedded; cannot call a subprogram in grade one program; a subprogram is edited following END2.

● Ladder format

● Control condition

ACT ＝0：execute the next instruction following CALL.

＝1：call subprogram which number is specified.

● Relative parameter

Px ：specify the called subprogram label, its label number is specified with beginning P address and it can

specify one of from P1 to P999.

GSK980TD Turning Machine CNC System

4.14 SP（START of SUBPROGRAM）, SPE（END of SUBPROGRAM）

● Instruction function

SP is to create a subprogram which number is used for subprogram name ,and SPE is taken as end symbol of program ,when SPE is executed, the main program will be returned to. SP and SPE are together used for specifying the subprogram range ,and the subprogram must be edited following END2.

● Ladder format

● Relative parameter

Px ：specify the call subprogram label, its label number is specified with beginning P address and it can specify

one of P1 to P999.

Ⅳ-10

Page 41

● Program example:

Chapter 4 PLC Function Instructions

Book 1 Pro

rammin

Explanation: When X0003.3 is 1, the program calls P0000 subprogram and jumps to execute 0006, and the

system orderly executes the program from 0003 after executing 0009.

When X0003.3 is 0, the system does not call P0000 subprogram and orderly executes

subprograms from 0003.

4.15 ROTB（BINARY ROTATION CONTROL）

● Instruction function

The instruction is used for rotation control, such as toolpost, rotary worktable. Its functions are as follows: to select rotation direction of short path ,to count steps from current position to target position ;or to count steps from the previous one of current position to the previous one of target position ,to count the position number of the previous one of target position.

● Ladder format

Ⅳ-11

Page 42

GSK980TD Turning Machine CNC System

● Control condition ● Control condition ACT ＝0：do not execute instructions, and E_add and O_add.b are reserved. ACT ＝0：do not execute instructions, and E_add and O_add.b are reserved.

Book 1 Pro

● Relative parameter ● Relative parameter Format: Format:

rammin

CNT ：centigrade position number of swivel table. CNT ：centigrade position number of swivel table. length ：specify the length of W_add ，D_add and E_add(1, 2, 4 byte). length ：specify the length of W_add ，D_add and E_add(1, 2, 4 byte). W_add ：it is current position address used for storing current position number. Its address W_add ：it is current position address used for storing current position number. Its address

D_add ：it is target position address used for storing target position number. Its address number is R, X, Y, F, G,

E_add ：it is used for counting the result output address. Its address number is R, Y, G, K, A, D, DC and DT. E_add ：it is used for counting the result output address. Its address number is R, Y, G, K, A, D, DC and DT. O_add.b ：it is used for outputting the rotary direction to ensure adding position number of swivel table is

O_add.b ：it is used for outputting the rotary direction to ensure adding position number of swivel table is

● Program example: ● Program example: Example: The current position corresponds to No. 1 tool selection when the toolpost is rotating. Example: The current position corresponds to No. 1 tool selection when the toolpost is rotating.

＝1：execute instruction and output its result to E_add and O_add.b. ＝1：execute instruction and output its result to E_add and O_add.b.

Count position number or steps 0：Count position number 1：Count ste

number is R, X, Y, F, G , K, A, D, DC and DT. number is R, X, Y, F, G , K, A, D, DC and DT.

K, A, D, DC and DT.

positive(FOR); if it is subtracting, its direction is negative(rev). When O_add.b＝0, the rotary

positive(FOR); if it is subtracting, its direction is negative(rev). When O_add.b＝0, the rotary direction is positive; O_add.b＝1, it is negative. Its address number is R, Y, G, K and A.

direction is positive; O_add.b＝1, it is negative. Its address number is R, Y, G, K and A.

Current position

Position D

Position C

egative

Count position Count position 0：Count target position 0：Count target position 1：Count the position before target 1：Count the position before target

Short circuit selection 0：No selection. Positive rotation，i.e. O_add.b=0 1：Selection. Its direction is defined by specifics

Specify the initial number of swivel table 0：Position number of swivel table is from 0 1：Position number of swivel table is from 1

Positive

Position B

Position A

Ⅳ-12

Page 43

Chapter 4 PLC Function Instructions

Count the previous position number before target position when the toolpost rotates in short circuit. When the current position number R0007=1 and centigrade position number of swivel table CNT=12, X0003.3=1: When F0026＝10 and the target position is A, R0027＝11,R0037.0＝1 When F0026＝8 and the target position is B，R0027＝9 ,R0037.0＝1 When F0026＝5 and the target position is C，R0027＝4 ,R0037.0＝0 When F0026＝3 and the target position is D，R0027＝2 ,R0037.0＝0

4.16 PARI（PARITY CHECK）

Book 1 Pro

rammin

● Instruction function Check parity of input data ,which is 1 byte(8 bits)

● Ladder format

● Control condition

ACT=1: Execute the parity check for input data. If the input data is inconsistent with the one specified by O_E,

Addr_Err.b is 1; otherwise, Addr_Err.b is 0

ACT=0: Do not execute instructions and Addr_Err.b is reserved.

● Relative parameter O_E =0：number of “1” in put data is even

=1：number of “1” in put data is old number

Addr_Rst.b：when it is 1, Addr_Err.b is reset to 0 and its address is X, Y, G, R, F, A, K and K. 为 1 时，

Addr_Err.b . Addr_In ：it is the input data address and its address is X, Y, G, R, F, A, K and D. Addr_Err.b ：it is the output address of check result and its address is Y, G, R, A and K.

● Program example:

Ⅳ-13

Page 44

Book 1 Pro

Explanation: When X0003.3 is 1, the system executes PARI instruction, O_E=0000 to execute the even check.

When R0010.0 is 1, R0030.0 is reset to 0 and the system does not execute the check. When

rammin

R0010.0 is 0, it does. When there is an even number for “1”in R0020, R0030.0 is 0. When there is an odd number for “1”in R0020, R0030.0 is 1.

4.17 ADDB（BINARY DATA ADDING）

● Instruction function

Add binary data

● Ladder format

GSK980TD Turning Machine CNC System

● Control condition ACT=1: the system executes Addr_Out=AGD1+AGD2. If the operation is mistake, Addr_Err.b is 1; otherwise,

it is 0.

ACT=0: the system does not execute instruction, Addr_Out and Addr_Err.b are reserved.

● Relative parameter

Length ：1-1，2-2，4-4 byte.

AGD1 ：it is a summand and can be constant or address. Its address number is R, X, Y, F, G, A, K, D, T, C, DC

and DT.

AGD2 ：it is addend and can be constant or address. Its address number is R, X, Y, F, G, A, K, D, T, C, DC and

DT.

Addr_Rst.b：when it is 1, Addr_Err.b is reset to 0 and Addr_Out is reserved. Its address number is R, X, Y, F, G,

A and K. Addr_Out ：it is the output data address of run result. Its address is Y, G, R, A, K, DC, DT, D, C, and T. Addr_Err.b：it is the output address of mistake operation result and its address is Y, G, R, A and K.

● Relative operation information register

R900 overflow negative zero

● Program example:

Ⅳ-14

Page 45

Chapter 4 PLC Function Instructions

Explanation: When X0003.3=1, the system executes ADDB instruction. When R0040=R0010+R0020 and if the operation is mistake, R0050.0 is 1, otherwise it is 0. When R0030.0 is 1, R0040 is reserved and R0050.0 is reset to 0.

4.18 SUBB（BINARY DATA SUBTRACTING）

● Instruction function

Subtract the binary data.

● Ladder format

Book 1 Pro

rammin

● Control condition ACT=1: the system executes Addr_Out= MIND-SUBD. If the operation is mistake, Addr_Err.b is 1; otherwise,

it is 0.

ACT=0: the system does not execute instruction, and Addr_Out and Addr_Err.b are reserved.

● Relative parameter Length ：1-1，2-2，4-4 byte. MIND ：it is minend and can be constant or address. Its address number is R, X, Y, F, G, A, K, D, T, C, DC and

DT.

SUBD ：it is subtrahend and can be constant or address. Its address number is R, X, Y, F, G, A, K, D, T, C, DC

and DT.

Addr_Rst.b：when it is 1, Addr_Err.b is reset. Its address number is R, X, Y, F, G, A and K.

Addr_Out：it is the output data address of run result. Its address is Y, G, R, A, K, DC, DT, D, C, and T.

Addr_Err.b：it is the output address of mistake operation result and its address is Y, G, R, A and K.

● Relative operation information register

R900 Overflow negative Zero

Note: the reset has no related to R900.

● Program example:

Ⅳ-15

Page 46

GSK980TD Turning Machine CNC System

Book 1 Pro

rammin

Explanation: When X0003.3=1, the system executes SUBB instruction. When R0040=R0010-R0020 , and if the

operation is mistake, R0050.0 is 0, otherwise it is 1. When R0030.0 is 1, R0040 is reserved and R0050.0 is reset to 0.

4.19 DIFU（ASCENDING EDGE SET）

● Instruction function Set the output signal to 1 when the ascending edge of input signal is valid.

● Ladder format

● Control condition

Input signal ACT: the output signal is set to 1 at the ascending edge of ACT（0－>1）. Output signal Add.b: when it is executed, one scanning period of Add.b in ladder is 1.

● Relative parameter add.b ：it is the operation result output address and its address is Y, G, R, A and K.

● Program example

Explanation: R0040.0 output is 1 when X0003.3 reaches the ascending edge.

4.20 DIFD（DESCENDING EDGE SET）

● Instruction function

Set the output signal to 1 when drift down of input signal is valid.

● Ladder format

● Control condition

Input signal ACT: the output signal is set to 1 at the descending edge of ACT（1－>0）.

Ⅳ-16

Page 47

Chapter 4 PLC Function Instructions

Output signal Add.b: when it is executed, one scanning period of Add.b in ladder is 1.

● Relative parameter Add.b ：it is the operation result output address and its address is Y, G, R, A and K.

● Program example:

Book 1 Pro

rammin

Explanation: R0040.0 output is 1 when X0003.3 reaches the descending edge.

4.21 MOVE（AND）

● Instruction function

Logic multiply and input data execute logic and operation, and then the system output the result to the specified address.

● Ladder format

● Control condition

ACT=1: Logic multiply (HIGH4、LOW4)and input data（Addr_In）execute logical operation, and output the

result to the specified address (Addr_Out), which can remove the needless number of bit from 8-bit signal of the specified address.

ACT=0: Addr_Out is reserved.

● Relative parameter HIGH4 ：high 4-bit logic multiply LOW4 ：low 4-bit logic multiply Addr_In ：input data address. Its address number is R, A, K, X, Y, F, G, and D. Addr_Out：output data address. Its address number is R, A, K, X, Y, F, G, and D.

● Program example:

Explanation: When X0003.3 is 1, logically execute R0010 and 01001110 to save its result to R0020.

Ⅳ-17

Page 48

4.22 AL T（ALTERNATIVE OUTPUT）

● Instruction function

ok 1 oPr

It is alternative output instruction. The output signal outputs reversely when the ascending edge of input signal changes(0－>1).

● Ladder format

rammin

GSK980TD Turning Machine CNC System

● Control condition The output signal Add.b outputs reversely when the input signal ACT changes 0－>1 every time.

● Relative parameter Add.b：it is the output signal and its address is Y, G, R, A and K.

● Program example:

Explanation: R0033.0 oversets one time when X0003.3 reaches the ascending edge every time.

Ⅳ-18

Page 49

BOOK 2

FUNCTION

Book2 Function

Page 50

Page 51

Chapter 1 Axes Control Signal

Chapter 1 AXES CONTROL SIGNAL

GSK980TD defines 4 axes: Axis 1, 2, 3 and 4. The detailed functions of each axis vary from one software version to

another. Now only Axis 1 and 2 are controllable, i.e. Axis X and Z.

1.1 AXIS MOVING STATUS

NC can transmit current axis moving status to PLC, and then PLC works according to the status of axis moving.

1.1.1 Feed Axis and Direction Selection Signal

＋J1～＋J4（G100.0～G100.3）－J1～－J4（G102.0～G102.3）

● Signal type: PLC→NC

● Signal functions: For detailed functions, please refer to section 3.1.1.

1.1.2 Axis Moving Signal

MV1～MV4（F102.0～F102.3）

● Signal type: NC→PLC

● Signal functions: MV1, MV2, MV3, MV4 are moving signals for Axis 1, 2, 3, 4 respectively. When an axis is

moving, NC sets corresponding axis moving signal to 1. When an axis stops moving, the axis moving

signal is 0.

● Signal addresses:

F102 MV4 MV3 MV2 MV1

1.1.3 Axis Moving Direction Signal

Book 2 Function

MVD1～MVD4（F106.0~F106.3）

● Signal type: NC→PLC

● Signal functions: MVD1, MVD2, MVD3, MVD4 are axis moving direction signals for Axis 1, 2, 3, 4 respectively.

When an axis is moving backwards, NC sets the axis moving direction signal to 1; when an axis is

moving forward, the axis moving direction signal is 0; If an axis stops moving, the direction signal

will be 1 or 0 depending on the moving status before the axis stopping.

● Signal addresses:

F106 MVD4 MVD3 MVD2 MVD1

1.2 SERVO READY SIGNAL

SA（F000.6）

● Signal type：NC→PLC

Ⅰ-1

Page 52

GSK980TD Turning Machine CNC

● Signal functions: When CNC gives out a warning, NC sets SA signal to 0 to stop axis moving. When the warning is

cancelled, NC sets SA to 1 to move axis again.

● Signal address:

F0 SA

Boo k 2

Fun c o

ti n

Ⅰ-2

Page 53

Chapter 2 Preparation for Operation

Chapter 2 PREPARATION for OPERATION

2.1 EMERGENT STOP

Emergency stop signal ESP（X0.5）：

● Signal type: machine tool → NC

● Signal function: If external emergency stop signal X0.5 is not shielded and is detected to be 0, CNC will give out

an emergency stop warning (no matter whether PLC program is configured in CNC or not). At this

time CNC resets, and the machine tool stops running.

● Signal address:

X0 ESP

Emergency stop signal ESP（G8.4）：

● Signal type: PLC→NC

● Signal function: If the voltage of G8.4 is 0, once NC detects this signal, an emergency stop warning will be given

out.

● Signal address:

Book 2 Function

G8 ESP

2.2 CNC READY SIGNAL

MA（F001.7）：

● Signal type: NC→PLC

● Signal function: CNC Ready Signal indicates that CNC is ready for working.

● Output conditions: When CNC is powered on without warning, F1.7 will be set to 1 in several seconds. otherwise,

CNC ready signal will be 0.

● Signal address:

F001 MA

2.3 CNC OVERTRAVEL SIGNAL

+L1~+L4(G114.0~G114.3)

-L1~-L4(G116.0~G116.3)

● Signal type: PLC→NC

● Signal functions: If a tool moves beyond the distance which the machine limit switch sets, the limit switch starts

working, the tool slows down and then stops, and overtravel alarm is given out. This signal indicates

that control axis already reaches the limit distance. Every direction of each control axis has this signal.

“+” and “-” displays the direction, and the number means corresponding axis name.

Ⅱ-1

Page 54

GSK980TD Turning Machine CNC

● Output conditions: If CNC overtravel signal is 0, the control unit will response as follows: ● Output conditions: If CNC overtravel signal is 0, the control unit will response as follows:

*During automatic operation, if any one of the axis overtravel signal is 0, all axes will slow down and

stop, also alarm will be given out.

*During manual operation, only the axis with a moving signal of 0 is going to slow down and stop.

Book 2 Function

*Once an axis overtravel signal turns to 0, the moving direction will be saved in the memory. Even

though the signal changes to 1 again before the warning is cancelled, the axis cannot move on in the

k 2 Func n

● Signal addresses: ● Signal addresses:

tio

G114 G114 +L4 +L4 +L3 +L3 +L2 +L2 +L1 +L1

though the signal changes to 1 again before the warning is cancelled, the axis cannot move on in the

foregoing direction.

＋ L 1

1 Axis 1 overtravel

2 Axis 2 overtravel

3 Axis 3 overtravel

4 Axis 4 overtravel

+ “forward” overtravel

- “backward” overtravel

The axis can move backwards after it stops.

G116 -L4 -L3 -L2 -L1

2.4 ALARM SIGNAL

AL（F001.0）：

● Signal type: NC→PLC

● Signal functions: When an alarm is given out, the cause message of the alarm will be displayed, and NC will set

F1.0 signal to 1. There are two types of alarm: PLC alarm and CNC alarm. When the alarm is

cancelled and CNC resets, F1.0 will turns to 0.

● Signal address:

F001 AL

2.5 START LOCK SIGNAL

STLK（G007.1）

● Signal type: PLC→NC

● Signal functions: When PLC sets G7.1 to 1, and transmits to NC, NC control axis slows down and stops. During

automatic operation, if G7.1 is 1, and the commands before axis moving command block contain M, S,

T commands, M, S, T commands can execute constantly until all the axis moving command blocks are

finished and axis slows down and stops. Unless G7.1 signal is 0, program can restart.

● Signal address:

Ⅱ-2

G007 STLK

Page 55

Chapter 2 Preparation for Operation

2.6 MODE SELECTION

Mode selection signals include MD1, MD2, MD4, DNC1 and ZRN. Eight types of work mode can be selected: Edit

mode, Auto mode, MDI mode, Jog mode, Handwheel mode/Increment mode, Machine Reference Point Return mode and

Program Reference Point Return mode. CNC outputs work mode detection signals and informs PLC which working mode

CNC is using.

2.6.1 Mode Selection Signal

MD1、MD2、MD4(G043.0～G043.2) DNC1(G043.5) ZRN（G043.7）：

● Signal type: PLC→NC

● Signal function: Work mode codes are as follows.

No. Code signal

Work mode

1 Edit mode 0 0 0 1 1

2 Auto mode 0 0 0 0 1

3 MDI mode 0 0 0 0 0

4 Handwheel mode/Increment mode

(HANDLE/INC)

5 Jog mode (JOG) 0 0 1 0 1

9 Machine Reference Point Return mode

(REF)

10 Program Reference Point Return mode

(PROG_ZERO)

PLC sets a value/digit to a Code signal, and then transfers to NC. NC will determine the working method of CNC

according to the code signal value.

● Signal addresses:

ZRN DNC1 MD4 MD2 MD1

0 0 1 0 0

1 0 1 0 1

0 0 0 1 0

Book 2 Function

G43 ZRN DNCI MD4 MD2 MD1

2.6.2 Work Mode Detection Signal

MINC(F3.0)、MH(F3.1)、MJ(F3.2)、MMDI(F3.3)、MMEM(F3.5)、MEDT(F3.6)、MREF(F4.5)、MPST(F4.6)

● Signal type: NC→PLC

● Signal functions: when CNC is working under a certain mode, if related “F” signal is set to 1, and transmitted to

PLC, PLC can be informed about the current working method.

Increment mode detection signal MINC

Handwheel mode detection signal MH

Jog mode detection signal MJ

MDI mode detection signal MMDI

Auto mode detection signal MMEM

Edit mode detection signal MEDT

Machine Reference Point Return mode detection signal MREF

Program Reference Point Return mode detection signal MPRO

Ⅱ-3

Page 56

● Signal addresses: ● Signal addresses:

F3 F3 MEDT MEDT MMEMMMEM MMDIMMDI MJ MJ MH MH MINCMINC F4 MPRO MREF

2.6.3 Sequence of Work Mode Signals 2 Function

Work mode keys

Book 2 Functionk 2 Fun on

Work mode detection signal

cti

工作方式键输入（X20.0、

X20.1、X20.2、X20.3、 X20.4、X20.5、X21.3）

Work mode selection

signal G43

工作方

式检测信号（F3.0、

F3.1、F3.2、F3.3、F3.5、

F3.6、F4.5、F4.6）

方式指示灯（Y5.3、

Work mode indicator

工作

Y5.2、Y5.5、Y5.6、 Y5.7、Y5.4、Y6.2）

工作方式选

择信号G43

0 1

GSK980TD Turning Machine CNC

2.6.4 Work Mode Control Flowchart

Resume hold mode after power on

Input X20.0 by edit mode key

Input X20.1 by auto mode key

Input X20.2 by MDI mode key

Input X20.3 by machine reference point return key

Input X20.4 by handwheel/incremental mode key

Ⅱ-4

Input X20.5 by JOG mode key

Input X21.3 by program reference point retur

Select G43:11 in Edit mode

Page 57

Chapter 2 Preparation for Operation

Select G43:0 in MDI mode

Select G43:1 in Auto mode

Select G43:10000101 in

machine reference point return mode

Book 2 Function

Select G43:100 in Handwheel/

incremental mode

Select G43:101 in Manual

mode

Select G43:10 in program reference

point return mode

Save G43:100 in current mode

Y5.3: light in Handwheel/

incremental mode

Ⅱ-5

Page 58

GSK980TD Turning Machine CNC

Book 2 Function

2.7 STATUS OUTPUT

2.7.1 Rapid Feed Signal

RPDO（F002.1）：

● Signal type: NC→PLC

● Signal function: CNC feeds signals rapidly

● Notes: When an axis feeds rapidly, NC sets F2.1 to be 1. If the feeding stops, F2.1 remains at the same status, and

then selects the “un-rapid” feeding, moves the axis or resets CNC, then F2.1 will change to 0.

● Signal address:

Y5.2: light in Manual mode

Y5.5: light in MDI mode

Y5.6: light in Auto mode

Y5.7: light in Edit mode

Y5.4:light in Machine reference

point return mode

Y6.2:ligh in program reference point

return mode

F2 PRDO

2.7.2 Cutting Feed Signal

CUT（F002.6）：

● Signal type: NC→PLC

● Signal function: when CNC is performing cutting feed (linear interpolation, circular interpolation, helical

interpolation, thread cutting, skip cutting or fixed cycle cutting), NC sets F2.6 to 1, and then transmits

to PLC. When it changes to rapid feed, F2.6 turns to be 0.

● Signal address:

F2 CUT

2.7.3 Tap Cutting Signal

TAP（F1.5）：

● Signal type: NC→PLC

● Signal functions: when CNC is performing tap cutting, NC sets F1.5 to 1.When CNC is not performing tap cutting,

and under the state of emergency stop or reset, NC sets F1.5 to 0.

● Signal address:

Ⅱ-6

F1 TAP

Page 59

Chapter 2 Preparation for Operation

2.7.4 Thread Cutting Signal

THRD（F2.3）：

● Signal type: NC→PLC

● Signal functions: when CNC is executing thread cutting, NC sets F2.3 to 1. While on the contrary F2.3 is 0.

● Signal address:

F2 THRD

Book 2 Function

Ⅱ-7

Page 60

Page 61

Chapter 3 Manual Operation

Chapter 3 MANUAL OPERATION Chapter 3 MANUAL OPERATION

3.1 JOG FEED/INCREMENTAL FEED 3.1 JOG FEED/INCREMENTAL FEED

Jog feed: In the jog mode, if the feed axis and direction selection signal is set to 1, the tool moves continuously along

the selected axis in the selected direction.

Incremental feed: In the incremental mode, if the feed axis and direction selection signal is set to 1, the tool moves

one step along the selected axis in the selected direction. The minimum distance the tool is moved is the least input

increment. Each step can be 0.001, 0.010 or 0.100 times .

The only difference between jog feed and incremental feed is the method of selecting feed distance. In the jog mode,

when the feed axis and direction selection signal ＋J1、－J1、＋J2、－J2、＋J3、－J3 is 1, the tool can move/feed

continuously. While in the incremental mode, the tool only moves one step.

By pressing the jog rapid traverse feed selection switch, the tool can be moved at the rapid traverse federate. In the

incremental feed mode, the distance of each step can be selected by MP1, MP2.

Book 2 Functionk 2 Function

3.1.1 Feed Axis and Direction Selection Signal 3.1.1 Feed Axis and Direction Selection Signal

＋J1～＋J4（G100.0～G100.3）＋J1～＋J4（G100.0～G100.3）－J1～－J4（G102.0～G102.3）－J1～－J4（G102.0～G102.3）

● Signal type: PLC→NC ● Signal type: PLC→NC

● Signal functions: In the jog feed or incremental feed mode, select a feed axis and a direction, perform axis moving,

and NC sets the corresponding axis and direction selection signal to 1. “＋”, “－” indicates feed

direction. The number indicates axis number.

● Notes: A：In the jog feed mode, CNC makes the selected axis moving continuously. In the incremental feed mode,

CNC makes the selected axis moving according to the specified rate defined by MP1, MP2 signals.

B：When an axis is moving, NC sets the axis and direction selection signal to 1. When the axis stops

moving, the signal changes to 0.

● Signal addresses: ● Signal addresses:

G100 G100 +J4 +J4 +J3 +J3 +J2 +J2 +J1 +J1

＋ J1

1 Axis 1 feed

2 Axis 2 feed

3 Axis 3 feed

4 Axis 4 feed

+ Forward feed － Backward feed

G102 -J4 -J3 -J2 -J1

Ⅲ-1

Page 62

GSK980TD Turning Machine CNC

3.1.2 Manual Feed Override Signal

JV00～JV15（G10、G11）：

● Signal type: PLC →NC

● Signal functions: Select manual feed override. The following table shows the relationship between signals and

manual feed override. PLC sets a value to G10, G11 and transmits to NC. Then NC sets override based

on the value of G10, G11.

G11 G10

0000 0000 0000 1111 0 0

0000 0000 0000 1110 10 2.0

0000 0000 0000 1101 20 3.2

0000 0000 0000 1100 30 5.0

Book 2 Function

● Signal addresses:

G10 JV07 JV06 JV05 JV04 JV03 JV02 JV01 JV00

0000 0000 0000 1011 40 7.9

0000 0000 0000 1010 50 12.6

0000 0000 0000 1001 60 20

0000 0000 0000 1000 70 32

0000 0000 0000 0111 80 50

0000 0000 0000 0110 90 79

0000 0000 0000 0101 100 126

0000 0000 0000 0100 110 200

0000 0000 0000 0011 120 320

0000 0000 0000 0010 130 500

0000 0000 0000 0001 140 790

0000 0000 0000 0000 150 1260

Override(%) Feed speed (mm/min)

G11 JV15 JV14 JV13 JV12 JV11 JV10 JV09 JV08

3.1.3 Rapid Traverse Selection Signal

RT（G019.7）

● Signal type: PLC→NC

● Signal functions: PLC sets G19.7 to 1 and transmits to NC to select jog rapid traverse. During the time of rapid

traverse, either G19.7 changes from 1 to 0, or from 0 to 1, feed speed will drop to 0 at first, and then

increase up to stated value. In the process of speed decreasing, feed axis and direction selection signal

remains unchanged.

● Signal addresses:

G19 RT

Ⅲ-2

Page 63

Chapter 3 Manual Operation

3.1.4 Manual Feed Override Control Flowchart 3.1.4 Manual Feed Override Control Flowchart

Resume manual feed

override after power on

External override OV

～OV8 is valid

Override key on MDI

panel is valid

Subprogram for external

manual feed override

Book 2 Functionk 2 Function

Ⅲ-3

Page 64

GSK980TD Turning Machine CNC

Min.: override

Max. override

Y8.4: light for min. override in manual feed

Book 2 Function

Y8.4: light for min. override in manual feed

Y8.1: light for max. override in manual feed

Subprogram for manual fee

override on MDI panel

X24.6: down key for manual

feed override

Upload computation number

Ⅲ-4

Page 65

Chapter 3 Manual Operation

Y24.3: up key for

manual feed override

Upload computation number

Upload override value

Save override data

Max. override

Min. override

Book 2 Function

Y8.1: light for manual

feed max. override

Y8.4: light for manual

feed min. override

3.2 HANDWHEEL FEED

In manual handle feed mode, the tool can be minutely moved by rotating the handle. An axis can be selected

according to the handle feed axis selection signal.

Ⅲ-5

Page 66

3.2.1 Handwheel Feed Axis Selection Signal

HS1A（G18.0）、HS1B（G18.1）

● Signal type: PLC→NC

● Signal type: PLC sets a value to handwheel feed axis selection signal G18.0, G18.1, and transmits to NC. NC

selects appropriate axis to feed based on the value of G18.0、G18.1. The relationship between signals

G18.0, G18.1 and handwheel feed axis is as follows:

Book unc n

● Signal addresses:

G18 HS1B HS1A

HS1B（G18.1） HS1A（G18.0）

0 0 No feed axis selected

0 1 Axis 1 is selected

1 0 Axis 2 is selected

1 1 Axis 3 is selected

2 F

3.2.2 Handwheel / Increment Override Signal

GSK980TD Turning Machine CNC

Feed axis

tio

MP1(G19.4)、MP2( G19.5)：

● Signal type: PLC→NC

● Signal functions: MP1, MP2 can select the moving distance of each pulse during the handwheel feed, and also can

select the moving distance of each step during the incremental feed. PLC sets a value to G19.4, G19.5,

and transmits to NC. NC adjusts override according to the value of G19.4, G19.5. See below table for

detailed relationship:

● Signal addresses:

G19 MP2 MP1

MP2

（G19.5）

0 0 0.001

0 1 0.010

1 0 0.100

1 1 1.000

MP1（G19.4）

Moving distance

(mm)

Ⅲ-6

Page 67

Chapter 3 Manual Operation

3.2.3 Handwheel Override Control Flowchart 3.2.3 Handwheel Override Control Flowchart

X22.1:Z handwheel selection signal

X21.7:X handwheel selection signal

select X handwheel

select Z handwheel

Y7.4:X handwheel indicator

Y7.2:Z handwheel indicator

X21.4:0.001 key

Book 2 Functionk 2 Function

X21.5:0.01 key

X21.6:0.1 key

Encode handwheel override

Ⅲ-7

Page 68

GSK980TD Turning Machine CNC

Y7.7: 0.01 indicator

Y7.6 : 0.01 indicator

Y7.5: 0.1 indicator

Book 2 Function

Ⅲ-8

Page 69

Chapter 4 Machine/Program Reference Point Return

Chapter 4 MACHINE／PROGRAM REFERENCE POINT RETURN

4.1 MACHINE REFERENCE POINT RETURN

In the mode of Machine reference point Return, by setting the feed axis and direction selection signals to 1, the

tool can move along the specified direction, and return to machine reference point position. After returning to

machine reference point position, CNC sets a workpiece coordinate system based on the values of NO.049, NO.050.

4.1.1 Machine Reference Point Return End Signal

ZP1～ZP4(F094.0～F094.3)：

● Signal type: NC→PLC

● Signal function: When an axis ends the machine reference point return, NC will set the related F signal to 1,

and transmit to PLC. This is to inform the axis that the machine reference point return already

ends. ZP1, ZP2, ZP3, ZP4 signals are machine reference point return end signals for Axis 1, 2, 3,

4 respectively.

● Notes: When machine reference point return has already ended (and G28 command returns to zero), and the

current position is within the specified area, the machine reference point return end signal turns to 1.

When the tool moves away from machine reference point point, the machine reference point return

end signal changes to 0.

Book 2 Function

4.1.2 Deceleration Signal in Machine Reference Point Return

XDEC（X09.0）、ZDEC（X09.1）：

● Signal type: machine tool→NC

● Signal functions: As soon as NC receives the deceleration signal in machine reference point return, the

moving speed will be decelerated, until the machine tool returns to machine reference point

position at a low rate. XDEC, ZDEC signals are machine reference point return deceleration

signals for Axis X, Z respectively.

● Signal addresses:

X9 ZDEC XDEC

4.1.3 Machine Reference Point Setting Signal

ZRF1～ZRF4(F120.0～F120.4)

● Signal type: NC→PLC

● Signal functions: After ending NC machine reference point return and setting a machine reference point point,

the corresponding machine reference point establish signal is set to 1, and then it is transmitted to

PLC. ZRF1, ZRF2, ZRF3, ZRF4 signals are machine reference point establish signals for Axis 1,

2, 3, 4 respectively.

Ⅳ-1

Page 70

● Signal addresses: ● Signal addresses:

F120 F120 ZRF4 ZRF4 ZRF3 ZRF3 ZRF2 ZRF2 ZRF1ZRF1

4.1.4 Sequence of Machine Reference Point Return Signal

GSK980TD Turning Machine CNC

Machine reference point return(F4.5)

Machine reference point return in X/Z direction

Machine reference point

return end signal (F094)

Start

Stop

Book 2 Functionk 2 Fun nctio

Machine reference point

establish signal (F120)

Machine reference point return

end indicator (Y4.7, Y4.5)

4.2 PROGRAM REFERENCE POINT RETURN

Under the status of Program reference point Return, Program reference point Return executes and makes the

tool moving to G50 position at a rapid speed. While during the time of program automatic executing, if a

program stops, the program returns to zero, the tool will return to program start position, and cancel tool offset.

If program reference point is not saved in the memory, when the program reference point return command is

executing, an alarm occurs. If program reference point is saved, then the program is started up, the position of

the tool when G50 block is executing will be saved in the memory automatically. Once the zero point is saved,

it will keep unchanged until a new zero point is saved. i.e. when executing Program A, zero point A is saved;

Then when executing Program B (if G50 is included), zero point A will be replaced by zero point B.

4.2.1 Program Reference Point Return End Signal

PRO1～PRO4（F198.0～F198.3）：

● Signal type: NC→PLC

● Signal functions: When program reference point return ends, the tool will stay at the program reference point

point. NC will set the program reference point return end signal to 1, and transmit to PLC, which

informs PLC that the program reference point return is ended. PRO1, PRO2, PRO3, PRO4 are

program reference point return end signals for Axis 1, 2, 3, 4 respectively.

● Note: When the tool moves away from program reference point, the signal of program reference point return

turns to 0.

● Signal addresses:

F198 PRO4 PRO3 PRO2 PRO1

Ⅳ-2

Page 71

Chapter 4 Machine/Program Reference Point Return

4.2.2 Sequence of Program Reference Point Return Signals 4.2.2 Sequence of Program Reference Point Return Signals

Program reference point (F4.6)

Program reference point return

in X/Z direction

程序回零方式（F4.6）

X、Z回程

序零点

Program reference point return end signal(F198)

程序零点返回结束信号（F198）

Program reference point return

end indicator(Y4.7, Y4.5)

程序回零结束灯（Y4.7、Y4.5）

Start

开始

Stop

停止

Book 2 Functionk 2 Function

Ⅳ-3

Page 72

Chapter 5 Automatic Operation

Chapter 5 AUTOMATIC OPERATION

5.1 CYCLE START/FEED HOLD

● Cycle start (start automatic operation):

In the mode of automatic or inputting method, when automatic operation start signal ST is effective, programs start

running.

1. Under the following conditions, ST signal is ignored:

A：any other methods except automatic method or inputting method B：feed hold signal（SP）is 0 C：emergency stop signal（ESP）is 0 D：external reset signal（ERS）is 1 E：press “reset” button on the operator’s panel F：CNC is warning G：automatic operation has already started H：program restart signal（SRN）is 1 I：CNC is searching for a sequence number

2. During automatic operation, CNC performs feed hold under the following conditions:

A：feed hold signal（SP）is 0 B：change to manual method, wheel method, single step method, machine zero return, or program zero return C：single block command is finished D：already finished inputting E：CNC is warning F：After changing to editing method, single block command is finished.

4、During automatic operation, CNC keeps in “reset” status and stops running under the following conditions:

A：emergency stop signal（ESP）is 0 B：external reset signal（ERS）is 1 C：press “reset” button on the operator’s panel

● Feed hold（pause automatic operation

During automatic operation, when the feed hold signal SP is 0, CNC pauses and stops running. At the same time cycle

start indictor signal (STL) is set to 0, feed hold signal (SPL) is set to 1, even though SP is set to 1, the machine will not

restart and operate automatically. Unless SP is set to 1, and ST signal is effective, the machine can restart and operate

automatically.

When executing program blocks with only M, S, T commands, SP signal is set to 0, STL will be 0 immediately, SPL

signal is 1, and CNC performs feed hold. When FIN signals are received from PLC, CNC continues executing the paused

program blocks. After finish executing, SPL signal is 0 (STL signal is 0), CNC stops automatic operation.

While G92 command（thread cutting cycle）is executing, SP signal is 0, and SPL signal changes to 1 immediately, but

the operation keeps running until cutter withdrawal is finished after thread cutting.

While G32 command (thread cutting) is executing, SP signal is 0, and SPL signal changes to 1 immediately, but the

operation keeps running until the non-thread cutting program block is finished executing after the thread cutting block.

While G84 command (fixed tap cycle) is executing, SP signal is 0, SPL signal changes to 1 immediately, but the

operation keeps running until the cutter returns to start position or R position after tap cutting is finished.

While executing macro command, after macro command is finished, it stops operating.

）:

Book 2 Function

Ⅴ-1

Page 73

5.1.1 Cycle Start Signal

ST（G007.2）：

● Signal type: PLC→NC

● Signal function: under the automatic or editing method, PLC sets G7.2 to 1, and then sets to 0, and transmits to NC.

NC starts automatic operation.

● Signal address:

G7 ST

5.1.2 Feed Hold Signal

SP（G008.5）

Book 2 Function

● Signal type: PLC→NC

● Signal function: PLC sets G8.5 to 0, and transmits to NC. NC starts automatic operation. If G8.5 is 0, programs

cannot restart.

● Signal address:

GSK980TD Turning Machine CNC

G8 SP

5.1.3 Cycle Start Light Signal

STL（F000.5）

● Signal type: NC→PLC

● Signal function: when NC is on automatic operation, STL is set to 1 and transmitted to PLC.

● Signal address:

F0 STL

5.1.4 Feed Hold Light Signal

SPL（F000.4）

● Signal type: NC→PLC

● Signal function: when NC is paused, SPL is set to 1 and transmitted to PLC.

● Signal address:

F0 SPL

5.1.5 Automatic Operation Signal

OP（F000.7）

● Signal type: NC→PLC

● Signal function: when NC is on automatic operation, OP is set to 1 and transmitted to PLC. The relationship among

STL, SPL and OP is as follows:

Cycle start light STL Feed hold light SPL Automatic operation

Cycle start status 1 0 1

Feed hold status 0 1 1

Ⅴ-2

Page 74

Chapter 5 Automatic Operation

Automatic operation

status

Reset status 0 0 0

● Signal address:

F0 OP

0 0 0 0 0 0

5.2 RESET

Under the following conditions, CNC starts “reset” status.

A：Emergency stop signal（ESP） is 0 B：External reset signal（ERS）is 1 C：Press the “reset” button on the panel

Except the above conditions, after the time specified by parameter NO.071, reset signal RST changes to 0. RST time＝T

Reset processing

During automatic operation, once CNC is reset, automatic operation stops, and the tool slows down along the

controlled axis until stops in the end. If CNC is executing M, S, T commands, when it is reset, MF, SF, TF signals will

change to 0 in 8ms.

（reset processing time）＋reset signal output time（parameter NO.071）

reset

Reset “ON”

Reset signal

rese

Parameter NO.071

Book 2 Functionook 2 Function

5.2.1 External Reset Signal

ERS（G008.7）

● Signal type: PLC→NC

● Signal function: when PLC sets G8.7 to 1 and transmits to NC, CNC resets and RST signal becomes 1.

● Signal address:

G8 ERS

5.2.2 Reset Signal

RST（F001.1）

● Signal type: NC→PLC

● Signal function: when NC is reset, it sets RST to 1 and transmits to PLC. This is to inform PLC that CNC is reset.

● Note: Under the following conditions, RST is set to 1:

A：external emergency stop signal (ESP) is set to 0. B：external reset signal（ERS）is set to 1 C：press the “reset” button on the panel

Except the above conditions, after the time specified by parameter NO.071, reset signal RST changes to 0.

Ⅴ-3

Page 75

● Signal address: ● Signal address:

F1 F1 RST RST

5.2.3 Sequence of Start Operation

RST（F1.1）

忽略

Ignorance

GSK980TD Turning Machine CNC

ST（G7.2）

Book 2 Functionk 2 Function

OP（F0.7）

SP（G8.5）

SPL(F0.4)

STL（F0.5）

5.3 MACHINE LOCK

When checking programs before running the machine, machine lock function can be used. Set all-axis machine lock

signal (MLK) to 1. In the process of manual operation or automatic operation, the machine stops pulse output to servo

motor. But CNC still keeps command assignment, and absolute coordinates and relative coordinates are updated.

Monitoring the changes of the coordinates positions can check if the edited programs are correct or not.

5.3.1 All-axis Machine Lock Signal

MLK（G44.1）

● Signal type: PLC →NC

● Signal functions: PLC sets G44.1 to 1, and transmits to NC. All axes are locked. Once G44.1 is set to 1, during the

time of manual operation or automatic operation, CNC cannot output pulses to servo motor. Therefore

the axis doesn’t move.

● Signal address:

G44 MLK

5.3.2 Detection Signal of All-axis Machine Lock

MMLK（F004.1）

● Signal type: NC→PLC

● Signal function: When all axes are locked, NC sets F4.1 to 1 and transmits to PLC.

Ⅴ-4

Page 76

Chapter 5 Automatic Operation

● Signal address:

F4 MMLK

5.4 DRY DRUN

Dry run is effective in the automatic operation mode. At dry run time, the tool moves at an invariable override,

instead of moving at a override specified in the program. This function is used for checking the movement of the tool under the state that the workpiece is removed. The movement speed depends on manual feed override signal (JV0～JV15).

Rapid traverse selection signal （RT）

1 Rapid traverse override

0 Manual feed override

5.4.1 Dry Run Signal

DRN（G46.7）：

● Signal type: PLC→NC

● Signal function: PLC sets G46.7 to 1, and transmits to NC. Then the dry run starts.

● Notes: A：If G46.7 is 1, the tool moves at a override specified for dry run. If G46.7 is 0, the tool moves normally. B：When the tool is moving, and when G46.7 changes from 0 to 1 or from 1 to 0, the movement speed of

the tool first drops down to 0, and then accelerates to a specified override.

● Signal address:

Dry run speed

Book 2 Function

G46 DRN

5.4.2 Detection Signal of Dry Run

MDRN（F002.7）：

● Signal type: NC→PLC

● Signal function: when a CNC is in the status of dry run, NC sets F2.7 to 1, and then transmits to PLC.

● Signal address:

F2 MDRN

5.5 SINGLE BLOCK

Single block execution is effective in the automatic operation mode only. During the time of automatic operation, if

single block signal（SBK）is set to 1, after the current block is executed, CNC starts feed hold. If single block signal（SBK）

is set to 0, programs run normally.

5.5.1 Single Block Signal

SBK（G046.1）：

● Signal type: PLC→NC

● Signal function: When PLC sets G46.1 to 1, and transmits to NC. CNC starts single block executing.

● Signal address:

G46 SBK

Ⅴ-5

Page 77

GSK980TD Turning Machine CNC

5.5.2 Detection Signal of Single Block

MSBK（F004.3）：

● Signal type: NC→PLC

● Signal function: when CNC is executing single block, NC sets F4.3 to 1 and transmits to PLC.

● Notes: A：thread cutting: during the time of thread cutting, SBK changes to 1. The executing stops until the first non

thread cutting block is finished.

B：fixed cycle executing: during the time of fixed cycle executing, if SBK is set to 1, the executing stops

when approaching drill and cutting withdrawal, instead of at the end of the program block.

Book 2 nctio

● Signal address:

F4 MSBK

5.6 OPTIONAL BLOCK JUMP

During automatic operation, if a slash “/” at the start of a block is specified, and the block jump signal BDT is set to

1, the program block is jumped and ignored.

5.6.1 Optional Block Jump Signal

BDT（G44.0）:

● Signal type: PLC→NC

● Signal function: If PLC sets G44.0 to 1 and transmits to NC, CNC starts executing block jumping. Any program

block with a slash “/” at the start of the block will not executed.

● Signal address:

G44 BDT

5.6.2 Detection Signal of Jump Block

MBDT（F04.0）：

● Signal type: NC→PLC

● Signal function: when CNC is executing block jumping, NC sets F4.0 to 1 and transmits to PLC, which informs that

PLC is running block jumping.

● Signal address:

Ⅴ-6

F4 MBDT

Page 78

Chapter 6 Feed speed Control

Chapter 6 FEED SPEED CONTROL

6.1 RAPID TRAVERSE SIGNAL

The rapid traverse speed of each axis can be controlled by parameters NO.022 and NO.023, rather than program

setting. But rapid traverse speed can also be controlled by adjusting rapid traverse override.

RPDO（F2.1）：

●Signal type：NC→PLC

●Signal function：When CNC is executing moving commands at a rapid traverse speed, NC sets F2.1 to 1, and

transmits to PLC.

● Notes: A：If RPDO is 1, this indicates that an axis is moving after selecting rapid traverse mode; if RPDO is 0,

it means an axis is moving after selecting null rapid traverse override.

B：In the automatic operation, rapid traverse includes all rapid traverse modes, such as fixed cycle

position, machine zero return, etc, not only for G00 command. Manual rapid traverse also includes

the rapid traverse in machine zero return.

C：Once rapid traverse is selected, the signal keeps to 1, even during the stop time, but changes until

other feed speed is selected and moving is started.

●Signal address

F2 RPDO

Book 2 Function

6.2 RAPID TRAVERSE OVERIRDE

Rapid traverse override has four levels F0, 25%, 50% and 100%. F0 override is specified by parameter NO.032.

In automatic method or manual method (including machine zero return, program zero return), actual moving rate is

obtained through multiplying the value set by parameters NO.022, NO.023 by the rate value

6.2.1 Rapid Traverse Override Signal

ROV1、ROV2（G014.0、G014.1）

●Signal type：PLC→NC

●Signal function：PLC sets values to G14.0, G14.1 and transmits to NC. NC then sets the rapid traverse override

according to the values of G14.0, G14.1. The override values of ROV1, ROV2 are shown in the

following table:

ROV2（G14.1） ROV1（G14.0）

0 0

1 0

0 1

1 1 FO

●Signal address

G14 ROV2 ROV1

Override value

100％

50％ 25％

Ⅵ-1

Page 79

6.2.2 Rapid Traverse Override Control Flowchart 6.2.2 Rapid Traverse Override Control Flowchart

Book 2 Functionk 2 Function

GSK980TD Turning Machine CNC

X24.5: down key for rapid traverse override

X24.2: up key for rapid traverse override

Rapid traverse override +

Rapid traverse override -

Max. rapid traverse override

Ⅵ-2

Min. rapid traverse override

Page 80

Chapter 6 Feed speed Control

Encode computation number

Rapid traverse override encode

Y8.2: indicator for max.

rapid traverse override

Y8.5: indicator for min.

rapid traverse override

6.3 FEED OVERRIDE

Feed speed can be adjusted by feed override, and can be used for checking programs. For example, if the feed speed

specified in the program is 100mm/min, when the feed override is adjusted to 50％, the tool moves at a speed of

50mm/min.

6.3.1 Feed Override Signal

FV0～FV7 (G012)：

●Signal type：PLC→NC

●Signal function：PLC sets a value to G12 and transmits to NC. NC can set a feed override according to the value of

G12. The relationship between FV0 - FV7 binary codes and feed override is shown below:

FV7～FV0 （G012.7～G012.0 )

0000 1111

0000 1110

0000 1101

0000 1100

0000 1011

0000 1010

0000 1001

0000 1000

0000 0111

0000 0110

0000 0101

0000 0100

0000 0011

0000 0010 130v

0000 0001

0000 0000

● Note: In automatic operation, actual feed speed = cutting feed speed x feed override.

●Signal address

Cutting feed override

0％ 10％ 20％ 30％ 40％ 50％ 60％ 70％ 80％ 90％

100％ 110％ 120％

140％ 150％

Ⅵ-3

Book 2 Function

Page 81

G12 G12 FV7 FV7 FV6 FV6 FV5 FV5 FV4 FV4 FV3 FV3 FV2 FV2 FV1 FV1 FV0 FV0

6.3.2 Feed Override Control Flowchart

Book 2 Functionk 2 Function

GSK980TD Turning Machine CNC

Subprogram for calling

external feed override

Subprogram for calling

external feed override on MDI panel

Subprogram for external

feed override on MDI panel

Subprogram for feed override

override on MDI panel

X24.6: down key for feed override

Ⅵ-4

Page 82

Chapter 6 Feed speed Control

Feed override-

X24.3: up key for feed override

Feed override+

Book 2

Function

Min. feed override

6.4 OVERRIDE CANCEL SIGNAL

Max. feed override

Y8.4: indicator for max. feed override

Y8.1: indicator for m. feed override

OVC（G006.4）：

●Signal type：PLC→NC

●Signal function：PLC sets G6.4 to 1 and transmits to NC. NC will set the feed override to be 100%.

Ⅵ-5

Page 83

GSK980TD Turning Machine CNC

●Note：when OVC is 1, CNC operates as follows: A：no matter how the feed override signal is adjusted, the feed override remains unchanged 100％ B：rapid traverse override and spindle override are not affected.

●Signal address：

G6 OVC

Book 2 Function

Ⅵ-6

Page 84

Chapter 6 Feed speed Control

Chapter 6 FEED SPEED CONTROL

6.1 RAPID TRAVERSE SIGNAL

The rapid traverse speed of each axis can be controlled by parameters NO.022 and NO.023, rather than program

setting. But rapid traverse speed can also be controlled by adjusting rapid traverse override.

RPDO（F2.1）：

●Signal type：NC→PLC

●Signal function：When CNC is executing moving commands at a rapid traverse speed, NC sets F2.1 to 1, and

transmits to PLC.

● Notes: A：If RPDO is 1, this indicates that an axis is moving after selecting rapid traverse mode; if RPDO is 0,

it means an axis is moving after selecting null rapid traverse override.

B：In the automatic operation, rapid traverse includes all rapid traverse modes, such as fixed cycle

position, machine zero return, etc, not only for G00 command. Manual rapid traverse also includes

the rapid traverse in machine zero return.

C：Once rapid traverse is selected, the signal keeps to 1, even during the stop time, but changes until

other feed speed is selected and moving is started.

●Signal address

F2 RPDO

Book 2 Function

6.2 RAPID TRAVERSE OVERIRDE

Rapid traverse override has four levels F0, 25%, 50% and 100%. F0 override is specified by parameter NO.032.

In automatic method or manual method (including machine zero return, program zero return), actual moving rate is

obtained through multiplying the value set by parameters NO.022, NO.023 by the rate value

6.2.1 Rapid Traverse Override Signal

ROV1、ROV2（G014.0、G014.1）

●Signal type：PLC→NC

●Signal function：PLC sets values to G14.0, G14.1 and transmits to NC. NC then sets the rapid traverse override

according to the values of G14.0, G14.1. The override values of ROV1, ROV2 are shown in the

following table:

ROV2（G14.1） ROV1（G14.0）

0 0

1 0

0 1

1 1 FO

●Signal address

G14 ROV2 ROV1

Override value

100％

50％ 25％

Ⅵ-1

Page 85

6.2.2 Rapid Traverse Override Control Flowchart 6.2.2 Rapid Traverse Override Control Flowchart

Book 2 Functionk 2 Function

GSK980TD Turning Machine CNC

X24.5: down key for rapid traverse override

X24.2: up key for rapid traverse override

Rapid traverse override +

Rapid traverse override -

Max. rapid traverse override

Ⅵ-2

Min. rapid traverse override

Page 86

Chapter 6 Feed speed Control

Encode computation number

Rapid traverse override encode

Y8.2: indicator for max.

rapid traverse override

Y8.5: indicator for min.

rapid traverse override

6.3 FEED OVERRIDE

Feed speed can be adjusted by feed override, and can be used for checking programs. For example, if the feed speed

specified in the program is 100mm/min, when the feed override is adjusted to 50％, the tool moves at a speed of

50mm/min.

6.3.1 Feed Override Signal

FV0～FV7 (G012)：

●Signal type：PLC→NC

●Signal function：PLC sets a value to G12 and transmits to NC. NC can set a feed override according to the value of

G12. The relationship between FV0 - FV7 binary codes and feed override is shown below:

FV7～FV0 （G012.7～G012.0 )

0000 1111

0000 1110

0000 1101

0000 1100

0000 1011

0000 1010

0000 1001

0000 1000

0000 0111

0000 0110

0000 0101

0000 0100

0000 0011

0000 0010 130v

0000 0001

0000 0000

● Note: In automatic operation, actual feed speed = cutting feed speed x feed override.

●Signal address

Cutting feed override

0％ 10％ 20％ 30％ 40％ 50％ 60％ 70％ 80％ 90％

100％ 110％ 120％

140％ 150％

Ⅵ-3

Book 2 Function

Page 87

G12 G12 FV7 FV7 FV6 FV6 FV5 FV5 FV4 FV4 FV3 FV3 FV2 FV2 FV1 FV1 FV0 FV0

6.3.2 Feed Override Control Flowchart

Book 2 Functionk 2 Function

GSK980TD Turning Machine CNC

Subprogram for calling

external feed override

Subprogram for calling

external feed override on MDI panel

Subprogram for external

feed override on MDI panel

Subprogram for feed override

override on MDI panel

X24.6: down key for feed override

Ⅵ-4

Page 88

Chapter 6 Feed speed Control

Feed override-

X24.3: up key for feed override

Feed override+

Book 2

Function

Min. feed override

6.4 OVERRIDE CANCEL SIGNAL

Max. feed override

Y8.4: indicator for max. feed override

Y8.1: indicator for m. feed override

OVC（G006.4）：

●Signal type：PLC→NC

●Signal function：PLC sets G6.4 to 1 and transmits to NC. NC will set the feed override to be 100%.

Ⅵ-5

Page 89

GSK980TD Turning Machine CNC

●Signal address：

G6 OVC

Book 2 Function

Ⅵ-6

Page 90

Chapter 7 M S T Functions

When a maximum 8-digit number following M, S, T address is specified, the corresponding code signals and strobe

signals are sent to PLC. PLC starts logic control according to these signals, as shown below:

Program

Function

Miscellaneous

function

Spindle speed

function

Tool function T

The process is as follows: (change M code to S, T code, i.e. the process of spindle speed function and tool function) A：Supposed M B：After sending code signals M00 - M31 to PLC, and strobe signal MF is set to 1, code signal uses binary system to

express program command value

together with auxiliary functions, after code signals of the auxiliary functions are sent, other functions start

executing.

C：When strobe signal MF is 1, PLC reads the code signal and executes corresponding operations. D：If move command and pause command is included in a program block, in order to execute auxiliary functions after

move commands and pause commands are finished, have to wait until DEN signal changes to 1.

E：When operation stops, PLC sets the end signal FIN to 1. End signal is used for auxiliary functions, spindle speed

functions and tool functions. If all these functions are executed at the same time, end signal FIN changes to 1

until all functions are stopped.

F：When end signal FIN becomes 1 for a period of time, CNC can set the strobe signal to 0 and confirm end signal is

received.

G：Until strobe signal is 0, PLC can set FIN to 0. H：When FIN is 0, CNC sets all code signals to 0 and stops all the sequence operation of the auxiliary function.

(While executing spindle speed function and tool function, code signal keeps unchanged until a new code is

specified.)

I：After commands in a same block is finished, CNC starts executing next block.

In application, the following sequences can be selected as per logical requirements:

If there is one auxiliary function in the block, PLC uses the following sequence:

address

is specified in the program, while CNC doesn’t specify, an alarm occurs.

M00～M31（F10～F13） MF（F7.0）

Code signal Strobe signal Distribution of

S00～S31（F22～F25） SF（F7.2）

T00～T31（F26～F29） TF（F7.3）

. If moving is paused, spindle speed or other functions are commanded

NC→PLC

end signal

DEN（F1.3） FIN（G4.3）

End signal

(PLC→NC)

Book 2 Function

Ⅶ-1

Page 91

command ends, it executes in the following sequence:

Book 2 Function k 2

F un

cti on

command ends, it executes in the following sequence:

M00~M31

PLC operation

FIN

DEN

When move command and auxiliary function are in a same block, if PLC executes auxiliary function before move

Move command

M00~M31

PLC

operation

FIN

DEN：0

When move command and auxiliary function are in a same block, if PLC executes auxiliary function after move

Move command

M00~M31

PLC

operation

FIN

DEN

GSK980TD Turning Machine CNC

7.1 AUXILIARY FUNCTION（M FUNCTION） 7.1 AUXILIARY FUNCTION（M FUNCTION）

7.1.1 Code Signal and Strobe Signal 7.1.1 Code Signal and Strobe Signal

Code signal: M00～M31（F010～F013）, strobe signal: MF（F007.0） Code signal: M00～M31（F010～F013）, strobe signal: MF（F007.0）

●Signal type: NC→PLC ●Signal type: NC→PLC

●Signal functions: After CNC executes M code, NC sends M code to PLC via F10 - F13, and sets MF to 1, to start

logical control. For related output conditions and executing processes, please refer to above

descriptions. The relationship between M command and code signal number is as follows:

Ⅶ-2

Page 92

Chapter 7 M S T Functions

F013，F012，F011，F010 00000000，00000000，00000000，00000000 00000000，00000000，00000000，00000001 00000000，00000000，00000000，00000010 00000000，00000000，00000000，00000011 00000000，00000000，00000000，00000100 00000000，00000000，00000000，00000101 00000000，00000000，00000000，00000110 00000000，00000000，00000000，00000111 00000000，00000000，00000000，00001000

. .

● Notes: The following auxiliary function commands cannot be output even if they are instructed in CNC programs:

A：M98，M99 B：M code for subprogram call C：M code for custom macro program call

●Signal addresses:

F10 M07 M06 M05 M04 M03 M02 M01 M00

M command

M00

M01

M02

M03

M04

M05

M06

M07

M08

Book 2 Function

F11 M15 M14 M13 M12 M11 M10 M09 M08 F12 M23 M22 M21 M20 M19 M18 M17 M16 F13 M31 M30 M29 M28 M27 M26 M25 M24

F7 MF

7.1.2 M Code Signal

DM00（F009.7）、DM01（F009.6）、DM02（F009.5）、DM30（F009.4）：

●Signal type：NC→PLC

●Signal function：When CNC is executing M00, M01, M02, M30 commands, NC sets corresponding code signals

DM00, DM01, DM02, DM30 to 1.

Program command Code signal

M00 DM00

M01 DM01

M02 DM02

M30 DM30

● Notes: 1：Under the following conditions, M code signal is 1: related auxiliary function is specified, and other

move commands and pause commands are finished in a same block. (If NC receives FIN signal

before move command and pause command end, M code signal will not be outputted.)

2：When FIN signal is 1 or the tool is reset, M code signal is 0. 3：While executing M00, M01, M02, M30, code signals DM00, DM01, DM02, DM30 and code signals

M00 - M31 and strobe signal MF are all outputted at the same time.

●Signal address

F9 DM00 DM01 DM02 DM30

Ⅶ-3

Page 93

GSK980TD Turning Machine CNC

7.2 Spindle Speed Function (S Function)

Spindle speed code signal S00 - S31（F022 - F025）, spindle speed strobe signal SF（F007.2）

●Signal type：NC→PLC

●Signal function：After CNC executes S code, NC sends S code to PLC via F22 – F25, and then sets SF to 1, and

transmits to PLC for logical control. For output conditions and executing progresses, please refer

to related description. The relationship between S command and binary code signal is shown in

the below table:

F025，F024，F023，F022 00000000，00000000，00000000，00000000 00000000，00000000，00000000，00000001

Book 2 Function

00000000，00000000，00000000，00000010 00000000，00000000，00000000，00000011 00000000，00000000，00000000，00000100

S command

S00

S01

S02

S03

S04

●Signal addresses:

F22 S07 S06 S05 S04 S03 S02 S01 S00 F23 S15 S14 S13 S12 S11 S10 S09 S08 F24 S23 S22 S21 S20 S19 S18 S17 S16 F25 S31 S30 S29 S28 S27 S26 S25 S24

F7 SF

7.3 Tool Function (T Function）

Tool function code signal T00 - T31（F026 - F029）, tool function strobe signal TF（F007.3）

●Signal type：NC→PLC

●Signal function：After CNC executes T code, NC sends T code to PLC via F26 - F29, and then sets TF to 1 and

transmits to PLC for logical control. For output conditions and executing progresses, please refer

to related description. The relationship between T command and binary code signal is shown in

the below table:

F029，F028，F027，F026 00000000，00000000，00000000，00000000 00000000，00000000，00000000，00000001 00000000，00000000，00000000，00000010 00000000，00000000，00000000，00000011 00000000，00000000，00000000，00000100

Ⅶ-4

T command

T00

T01

T02

T03

T04

Page 94

●Signal addresses:

F26 T07 T06 T05 T04 T03 T02 T01 T00 F27 T15 T14 T13 T12 T11 T10 T09 T08 F28 T23 T22 T21 T20 T19 T18 T17 T16 F29 T31 T30 T29 T28 T27 T26 T25 T24

F7 TF

7.4 MST Function End

7.4.1 End Signal

Chapter 7 M S T Functions

FIN（G004.3）

●Signal type：PLC→NC

●Signal function：When auxiliary functions, spindle speed function and tool function are all finished executing, PLC

sets FIN to 1 and transmits to NC.

●Signal address：

G4 FIN

7.4.2 Distribution End Signal

DEN（F001.3）：

●Signal type：NC→PLC

●Signal function：If auxiliary functions, spindle speed function, tool function and other commands (e.g. move

command, pause command) are all in a single block, after other commands are finished executing,

waiting for FIN signal, then NC sets DEN to 1. Every time a block ends executing, DEN will be set to

●Signal address:

F1 DEN

Book 2 Function

7.5 AUNCTION LOCK SIGNAL

7.5.1 Auxiliary Function Lock Signal

AFL（G0005.6）：

●Signal type：PLC→NC

●Signal function：PLC sets G5.6 to 1, then transmits to NC to disenable the execution of M, S, T functions.

● Notes: When AFL signal is 1, CNC works as below:

Ⅶ-5

Page 95

GSK980TD Turning Machine CNC

A：For operations with automatic method and inputting method, CNC doesn’t execute specified M, S

and T functions, i.e. code signal and strobe signal are not outputted.

B：If AFL is set to 1 after code signal is outputted, CNC works in a normal way until execution

finishes (until FIN signal is received and strobe signal is set to 0).

C：When AFL is 1, M00, M01, M02 and M30 commands can be executed, and corresponding code

signal, strobe signal, coding signal are all outputted in a normal way.

D：If AFL is 1, auxiliary functions M98 and M99 still works in a normal way, but no results are

outputted.

E：If AFL is 1, spindle analog value can be outputted.

●Signal address：

G5 AFL

Book Funct

7.5.2 Detection Signal of Auxiliary Function Lock

MAFL（F004.4）：

●Signal type：NC→PLC

ion

●Signal function：When CNC is executing auxiliary function lock, NC sets F4.4 to 1 and transmits to PLC.

●Signal address:

F4 MAFL

Ⅶ-6

Page 96

Chapter 8 Spindle Speed

Chapter 8 SPINDLE SPEED

The spindle is divided into gear spindle and analog spindle according its control mode. CNC converts S code into switching value to output to spindle to control spindle speed in gear spindle mode; CNC converts S code into analog value to spindle to control spindle speed in analog spindle mode; CNC transmits SIMSPL signal to inform PLC of current spindle control mode.

Spindle mode signal SIMSPL（F200.4）

●Signal type：NC→PLC

●Signal function: NC sets SIMSPL to 0 or 1, sets control mode of spindle speed，transmits SIMSPL to PLC and informs PLC of current spindle speed control mode.

●Signal action: SIMSPL=1: CNC sets analog spindle control; S code is converted into analog value and is transmitted.

SIMSPL=0: CNC sets gear spindle control; S code is converted into switching value and is

transmitted.

●Signal address

F200

SIMSPL

Book 2 Function

8.1 GEAR SPINDLE

Gear spindle is defined that the actual spindle speed is controlled by gears of machine, and CNC converts S code into switching value to control gears of machine to realize spindle speed control. Refer to Section 7.2.

8.2 ANALOG SPINDLE

8.2.1 Analog Spindle Speed Control

S instruction for analog spindle control: it is input by part programs and used for specifying analog spindle speed controlled by CNC. For constant surface speed cutting (G96), CNC converts the specified constant surface speed into spindle speed. S code/SF signal output: analog spin dle control fu nction in CNC output s S instruction with bi nary code to PLC and does not output SF. Gear shifting: although S instruction specifies spindle speed, actual control of CNC is spindle motor. CNC

outputs the corresponding spindle speed when the machine gear shifts to some gear.

Gear shifting method: to execute gear shifting, max. spindle speed corresponding to each gear is set by

NO.037～NO.040. Selection signal of gear shift is 2-bit code signal(GR1, GR2). Relationship between signal and gear is as follows:

Ⅷ-1

Page 97

GSK980TD Turning Machine CNC

095

GR2(G28.2) GR1(G28.1) Gear Parameter number of max. spindle speed

0 0 1 Data parameter NO.037 0 1 2 Data parameter NO.038 1 0 3 Data parameter NO.039 1 1 4 Data parameter NO.040

NO.037～NO.040 separately set No. 1~No. 4 max. spindle speed. When analog voltage 10V corresponds to max.

NO.037～NO.040 separately set No. 1~No. 4 max. spindle speed. When analog voltage 10V corresponds to max. speed of spindle motor，linear relationship of analog voltage output for the same S instruction in different gears is as

speed of spindle motor，linear relationship of analog voltage output for the same S instruction in different gears is as follows：

follows：

Book 2 Function k

2 Fu

nc tio

U(V)

Suppose that NO.037＝1000；NO.038＝2000；NO.039=4000；NO.040=5000. S=800: Suppose that NO.037＝1000；NO.038＝2000；NO.039=4000；NO.040=5000. S=800:

G28.1=0, G28.2=0, No. 1 gear: G28.1=0, G28.2=0, No. 1 gear:

o.1 gear

O.037

o.2 gear

O.038

1 =×=

800

o.3 gea

O.039

o.4 gea

S input (S0~S9999)

O.040

VU 810

1000

G28.1=0, G28.2=0, No. 2 gear:

G28.1=0, G28.2=0, No. 3 gear:

2 =×=

3 =×=

800

2000

800

VU 410

VU 210

4000

G28.1=0, G28.2=0, No. 4 gear:

800

4 =×=

VU 6.110

5000

Formula operation of output voltage value:

S12 code (R12O～R01O) output: NC counts the spindle speed of each gear through gear shifting control,

namely S12 code signal R12O～R01O（0~4095）output the spindle motor and PLC. Relationship between 10V and S12 code is as follows:

Ⅷ-2

S12 code （R12O～R01O）

Page 98

Chapter 8 Spindle Speed

)

S12 code output: SIND (G33.7) determinates the spindle speed instruction uses S12 code data（R12Ｏ～R01Ｏ） counted by NC or S12 bit code signal (spindle motor speed instruction signal R12I～R01I) specified by PLC.

counted by NC or S12 bit code signal (spindle motor speed instruction signal R12I～R01I) specified by PLC. The spindle speed instruction is set in R12I～R01I if the spindle speed is transmitted from PLC.

The spindle speed instruction is set in R12I～R01I if the spindle speed is transmitted from PLC.

Voltage offset: after the system receives the spindle speed S12 bit code（0~4095）, it compensates and regulates

Voltage offset: after the system receives the spindle speed S12 bit code（0~4095）, it compensates and regulates instruction value of spindle speed by setting NO.021 (it is voltage compensation value when the analog voltage

instruction value of spindle speed by setting NO.021 (it is voltage compensation value when the analog voltage outputs 0V) and NO.036 (it is voltage compensation value when the analog voltage outputs 0V). Operation

outputs 0V) and NO.036 (it is voltage compensation value when the analog voltage outputs 0V). Operation formula is as follows:

formula is as follows:

Output value of spindle speed=

Conditions of stop output: when S0 is commanded (*SSTP＝0 or S0), the instruction output to spindle is reset to 0. An instruction from NC to spindle cannot be reset to 0 with M05, emergent stop or reset mode. Analog spindle interface: the system outputs analog voltage of the regulated spindle speed to the spindle motor by analog spindle interface circuit.

Control instruction flow of analog spindle speed

Use NO.021 and NO.036 to regulate the offse

S instruction in part

program (S0~S9999)

Spindle override signal（SOV0~SOV7）

Spindle stop signal（*SSTP）

Gear shifting：（S—>spindle motor speed）

Result after NC outputting speed: S12 bit code out

SIND=0

Converter

ut（R12O～R01O）

Output（selection by SIND）

PLC specifies S12 bit code to inpu

SIND=1

（R12I~R01I）

Spindle motor

pindle speed instruction uses S12 code data（R12Ｏ～R01Ｏ）

9999+NO.021-NO.036

9999

S code/SF output

Input gear selectio signal(GR1,GR2

Spindle enabling

～

signal output

XS12 code+NO.036X

Output to PLC

Transmit from PLC

Transmit

Output to PLC

Transmit from PLC

Output to PLC

Machine

rom PLC

4095

9999

Book 2 Function

Ⅷ-3

Page 99

Spindle stop signal *SSTP（G29.6）： Spindle stop signal *SSTP（G29.6）：

●Signal type：PLC→NC ●Signal type：PLC→NC

●Signal function: stop output the spindle speed instruction. The signal sets S instruction in NC to be 0. Its

relative time sequence is as follows:

●Caution: when the spindle stop signal *SSTP is 0, the output voltage is 0V. When the signal is 1, the analog

voltage outputs instruction value. When the signal is not used, the signal is set to 1 to make CNC control spindle

voltage outputs instruction value. When the signal is not used, the signal is set to 1 to make CNC control spindle speed.

speed.

●Signal address： ●Signal address：

Book 2 Functionk 2 Function

Spindle speed override signal SOV0～SOV7（G30）

G29 G29 *SSTP *SSTP

Input instruction M03 M05 M04 S00

Auxiliary function

Spindle stop signal *SSTP

Analog voltage 0V

Enabling signal ENB

●Signal type：PLC→NC

●Signal function: PLC evaluates G30 to transmit it to NC which will determine the spindle speed override

●Caution: The spindle override function is value in tapping cycle and thread cutting.

●Signal address：

G30 SOV07 SOV06 SOV05 SOV04 SOV03 SOV02 SOV01 SOV00

“0”

according to G30 value. Relation between SOV0～SOV7 and override value is as follows:

SOV7～SOV0（G30.7～G30.0） Spindle override

0000,0111 50％ 0000,0110 60％ 0000,0010 70％ 0000,0011 80％ 0000,0001 90％ 0000,0000 100％ 0000,0100 110％ 0000,0101 120％

GSK980TD Turning Machine CNC

“1”

Ⅷ-4

Page 100

PLC control flow of spindle override: PLC control flow of spindle override:

Chapter 8 Spindle Speed

X24.1 up key fo spindle override

Book 2 Functionook 2 Function

X24.4: down key fo spindle override

Max. spindle override in-position

Min. spindle override in-position

Spindle override encode

Ⅷ-5

gsk GSK980TD User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual