Yaskawa MEMOCON GL120 - Manual (Page 191)

4.4 Communications Modules
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4.4.6 MEMOBUS Modules (RS-422)
1. Appearance
DIP switch
MEMOBUS port (port 1)
Module description
(120NOM27100)
LED area
MEMOBUS port (port 2)
Reset switch
Color code (yellow)
Module mounting screw
(Use M4 Phillips screwdriver.)
LED Color Indication when ON
READY Green Module is operating normally.
ACTIVE Green Module is engaged in service with the CPU Module
TX1 Green Module is transmitting data from port 1.
RX1 Green Module is receiving data from port 1.
ERR1 Red An error has occurred in the transmission of port 1.
TX2 Green Module is transmitting data from port 2.
RX2 Green Module is receiving data from port 2.
ERR2 Red An error has occurred in the transmission of port 2.
Figure 4.32 Appearance of MEMOBUS Module (RS-422)
4
TX1
READY
120 NOM 271 00
RX1
ERR1
ACTIVE
TX2
RX2
ERR2
LED area