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How to set input specification (J4 to J9)
For connectors J4 to J7, the connections are different depending on the input specifi-
cations as shown below.
Connector J4
*: Set the jumpers J20/J21 to Modbus.
Connector J5
*: Set the jumpers J20/J21 to Modbus.
Pin # Signal name In/Out Remarks IEC61162-2 IEC61162-1 Modbus*
1 TD1-A Out Serial CH1, out-
put IEC61162-1/
2/modbus
TTYCS(LA)-4 TTYCS(LA)-4 TTYCS(LA)-4
2 TD1-B Out Serial CH1, out-
put IEC61162-1/
2/modbus
3 RD1-A In Serial CH1, out-
put IEC61162-2/
modbus
No connection No connection
4 RD1-B In Serial CH1, out-
put IEC61162-2/
modbus
5 ISOGND1 - Isolation, GND
(CH1)
6 RD1-H In Serial CH1, out-
put IEC61162-1
No connection TTYCS(LA)-4
7 RD1-C In Serial CH1, out-
put IEC61162-1
Pin # Signal name In/Out Remarks IEC61162-2 IEC61162-1 Modbus*
1 TD2-A Out Serial CH2, out-
put IEC61162-1/
2/modbus
TTYCS(LA)-4 TTYCS(LA)-4 TTYCS(LA)-4
2 TD2-B Out Serial CH2, out-
put IEC61162-1/
2/modbus
3 RD2-A In Serial CH2, out-
put IEC61162-2/
modbus
No connection No connection
4 RD2-B In Serial CH2, out-
put IEC61162-2/
modbus
5 ISOGND2 - Isolation, GND
(CH2)
6 RD2-H In Serial CH2, out-
put IEC61162-1
No connection TTYCS(LA)-4
7 RD2-C In Serial CH2, out-
put IEC61162-1