Delta SLC-500, PLC-5, 1770-KF2 user manual DeltaV PLC/SLC Electrical Interface

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6 DeltaV – PLC/SLC Electrical Interface

The electrical interface between DeltaV and the PLC-3, PLC-5 and SLC 5/XX conforms to the RS-232 protocol and RS-422/485 protocol. The cabling should not exceed 50 feet for the RS-232 protocol or 4000 feet for the RS-422/485 protocol.

In 6.1 and 6.2 the pin assignments for the PSIC Serial Terminal Block are listed for the RS-232 protocol and the RS-422/485 protocol. Pins 1 - 8 are for Port 1 connections and Pins 9 - 16 are for Port 2 connections

6.1RS-232 Pin Assignments for DeltaV PSIC

Terminal Number	Signal Description
1	Port 1 - Isolated Ground (GND)
2	Unused
3	Port 1 - Transmit Data (TXD)
4	Unused
5	Port 1 - Receive Data (RXD)
6	Unused
7	Port 1 - Data Terminal Ready (DTR)
8	Port 1 - Dataset Ready (DSR)
9	Port 2 - Isolated Ground (GND)
10	Unused
11	Port 2	- Transmit Data (TXD)
12	Unused
13	Port 2	- Receive Data (RXD)
14	Unused
15	Port 2	- Data Terminal Ready (DTR)
16	Port 2	- Dataset Ready (DSR)

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