Delta Mynah PLC-5 User Manual Page 21

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Powerful Solutions for Digital Plants
MYNAH Technologies  504 Trade Center Blvd.  Chesterfield, MO 63005  Telephone 636 681-1555  Fax 636 681-1660
www.mynah.com
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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
6.1 RS-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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