Specifications

4 Communication settings and guide of HMI connecting with controller
ADDRESS=1
SETCOM（9600,8,1,2,1,4）
◎Supported Device
TRIO
Device Bit Address Word Address Format Notes
I/O and Internal Auxiliary Relay IR 0.0-4095.15 ---------- DDDD.DD
Link Relay LR 0.0-4095.15 ---------- DDDD.DD
Assistant Relay AR 0.0-4095.15 ---------- DDDD.DD
Holding Relay HR 0.0-4095.15 ---------- DDDD.DD
Data Memory ---------- DM 0-30000 DDDDD
Timer/Counter ---------- TC 0-255 DDD
NOTE： Address correspondence: IRn.m-->the m Trio VR (n); DMn->Table (n). Example IR1.02
corresponds to the 2nd bit of VR1.
Modbus RTU Extend
Device Bit Address Word Address Format Notes
Data register bit 4X_bit 0.0-1023.15 ———— DDDD.DD
Data register ———— 4X 0-1023 DDDDD
NOTE：Address correspondence: 4x corresponds to VR; 4x_bit corresponds to VR’s bit. Address difference
between one position, e.g. 4x (501) corresponds to VR (500); 4x_bit (67.1) corresponds to the first bit of
VR (66).
◎Cable Diagram
NOTE: In the controller, A port is programming port, B port is communication port
Programming Cable
Controller A port terminal
8 pin Mini Din (male)
5 TXD
3 RXD
4 GND
3 TX
2 RX
5 GND
PC terminal
9pin D-SUB female
RS232 Communication Cable
Controller B port terminal
8 pin Mini Din (male)
5 TXD
3 RXD
4 GND
com2
3 TX
2 RX
5 GND
8 TX
7 RX
5 GND
com0/com1
HMI terminal
9pin D-SUB female/male
RS422 Communication Cable
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