Communicating Signals Between Ld75 And Each Module - Mitsubishi Electric MELSEC-L LD75P User Manual

1.1.5

Communicating signals between LD75 and each module

The outline of the signal communication between the LD75 and CPU module, GX Works2 and drive unit, etc., is shown
below. (GX Works2 communicates with the LD75 via the CPU module to which it is connected.)
PLC CPU
PLC READY signal
Y0
LD75 READY signal
X0
Syncronization flag
X1
Forward run JOG start signal
Y8, YA, YC, YE
Reverse run JOG start signal
Y9, YB, YD, YF
Execution prohibition flag
Y14, Y15, Y16, Y17
Positioning start signal
Y10, Y11, Y12, Y13
Positioning complete signal
X14, X15, X16, X17
BUSY signal
XC, XD, XE, XF
Start complete signal
X10, X11, X12, X13
Axis stop signal
Y4, Y5, Y6, Y7
M code ON signal
X4, X5, X6, X7
Error detection signal
X8, X9, XA, XB
Data write/read
Parameter write/read
Positioning data write/read
Block start data write/read
OPR operation (test)
Peripheral
JOG/Inching operation (test)
device
Positioning operation (test)
interface
Operation monitor
GX Works2
32
LD75
External
interface
Interface with
CPU module
Drive unit READY signal
Upper/lower limit signal
External
Near-point dog signal
signal
Zero signal
Drive
unit
Deviation counter clear
Pulse train
Manual pulse generator A-phase
Manual pulse
generator
Manual pulse generator B-phase
Stop signal
External
External command signal signal