3 - 14 3 - 14
MELSEC-
3 SPECIFICATIONS
(c) The following table lists the I/O signals for 8 occupied station (4 occupied
stations
2 modules) setting
Remote input (X) of CC-Link/LT Remote input (RX) of
CC-Link
F E D C B A 9 8 7 6 5 4 3 2 1 0
RXnFRXn0
Station number 1
to to
RX(n6)FRX(n6)0
Station number 7
RX(n7)FRX(n7)0
Use prohibited
RX(n8)FRX(n8)0
Station number 8
to to
RX(nE)FRX(nE)0
Station number 14
RX(nF)FRX(nF)0
Use prohibited
Remote input (Y) of CC-Link/LT Remote input (RY) of
CC-Link
F E D C B A 9 8 7 6 5 4 3 2 1 0
RYnFRYn0
Station number 1
to to
RY(n6)FRY(n6)0
Station number 7
RY(n7)FRY(n7)0
Use prohibited
RY(n8)FRY(n8)0
Station number 8
to to
RY(nE)FRY(nE)0
Station number 14
RY(nF)FRY(nF)0
Use prohibited
(4) Functions of remote I/O signals
Device No. Signal Name Description
RX(n 3)A 1 Error status flag
Turns on when a remote I/O error occurs on CC-Link/LT side or when all
stations or remote stations become faulty. Automatically turns off upon
recovery from the error.
RX(n 3)B 2 Remote READY
Turns on during normal operation.
Turns off in the CC-Link/LT side self-loopback test mode or when a switch
error occurs on a CC-Link/LT side.
1: When 4 stations are occupied RX(n 7)A
When 8 stations are occupied RX(n 7)A, RX(n F)A
2: When 4 stations are occupied RX(n 7)B
When 8 stations are occupied RX(n
7)B, RX(n F)B