Hardware manual

Chapter2 Connection to a PLC

2-210

Connection Diagram 10-3

：

TCmini (RS-485) - MICRO/I

PLC(RS-485/422) HG1F/2F/2S/3F/4F(RS-485/422)

Pin No.

Name

HG1F

Connector

HG2F/

3F/4F

HG2S HG2S

1 TDA FG Cover - 1 1

2 TDB TERM - - 9 -

3 RDA(A) RDA(RD+) 2 3 10 32

4 RDB(B) RDB(RD-) 7 4 16 33

5 GND SDA(SD+) 1 1 11 30

6 P5V SDB(SD-) 6 2 15 31

7 FG CS- 9 - 18 37

RS- 8 - 19 35

CS+ 4 - 21 36

RS+ 3 - 22 34

SG 5 5 7 29

D-sub, 9P connector socket type (HG1F)

D-sub, 25P connector socket type (HG2F/3F/4F)

D-sub, 37P connector plug type (HG2S)

Internal

termination

resistor

330-Ohm

Shield Wire

- There is no pin No. corresponding to TERM on the HG1F/HG2S. When inserting a

termination resistor, use a communication switch. For the setting of the switch, refer to "3

Important Points Regarding Wiring" in Chapter 1.

When you use the Terminal Block type of HG1F, make sure to configure the Hardware Flow

control to NONE because the HG1F doesn’t have control lines.