Mitsubishi RS232/485/LAN Serial Communication Control Manual Pagina 156

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Chapter2 Connection to a PLC
2-156
5.3 Connection Diagram
The connector types given in the Connection Diagrams are for the unit and not the cable.
For details regarding wiring, refer to "3 Important Points Regarding Wiring" in Chapter 1.
Connection Diagram 5-1: S7-200 (RS-485) to MICRO/I
PLC(RS-485/422) HG1F/2F/2S/3F/4F(RS-485/422)
Pin No.
Pin No.
Name
Name
HG1F
Connector
HG1F
Terminal
HG2F/
3F/4F
HG2S
FG FG Cover - 1 1
1 LC TERM - - 9 -
2 LC RDA(RD+) 2 3 10 32
3 SIG-B RDB(RD-) 7 4 16 33
4 NC SDA(SD+) 1 1 11 30
5 LC SDB(SD-) 6 2 15 31
6 +5V CS- 9 - 18 37
7 +24V RS- 8 - 19 35
8 SIG-A CS+ 4 - 21 36
9 NC RS+ 3 - 22 34
SG 5 5 7 29
Internal
termination
resistor
330-Ohm
D-sub, 9P connector socket type (HG1F)
D-sub, 25P connector socket type (HG2F/3F/4F)
D-sub, 37P connector plug type (HG2S)
D-sub, 9P socket connector
(plug side)
Shield Wire
- It is also possible to connect multiple PLCs and multiple MICRO/Is on the same network.
- Please short-circuit the RDA and SDA of MICRO/I and connect to SIG-B of PLC.
- Please short-circuit the RDB and SDB of MICRO/I and connect to SIG-A of PLC.
- Refer to S7-200 manual for restrictions when using multi-drops.
- When using multiple PLCs to communicate to multiple MICRO/Is, it will take extra time to
establish communication between PLCs and OIs.
- 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.
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