Yaskawa MEMOCON GL120 - Manual (Page 231)

4.4 Communications Modules
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4.4.10 Distributed I/O Driver Module
1. Appearance
Module description (120CRD21100)
Color code (yellow)
LED area
Reset switch
DIP switch
MECHATROLINK ports (2 ports)
Module mounting screw
(Use M4 Phillips screwdriver.)
LED Color Indication when ON
READY Green Distributed I/O Driver Module is normal.
TX Green Distributed I/O Driver Module is sending data.
RX Green Distributed I/O Driver Module is receiving data.
ACTIVE Green Distributed I/O Driver Module is communicating
with the CPU Module.
ERR1 Red An error has occurred in communications.
ERR2 Red An internal operation error has occurred in the
Distributed I/O Driver Module.
Figure 4.49 Appearance of Distributed I/O Driver Module
4
TX
READY
120 CRD 211 00
ACTIVE
ERR2
LED area
ERR1
RX