P1 Installation - Barnett Engineering ProTalk LINK Operating Manual

PAGE 16

6. P1 INSTALLATION

STATUS COMM
0
The P1 module provides connectivity between the Link system and a PLC.
Communications between the P1 module and the PLC can be done using
one of the available ports: the RS232 serial port, the RS485 serial port or,
for Modbus systems, the Ethernet port. Only one of the three ports can be
assigned for PLC communications at a time. The Ethernet port is
available for monitoring the status of the Link system regardless of which
port is selected for PLC communications.
Protocols used by the module are:

Modbus slave

Modbus master

Modbus TCP/IP slave

Modbus TCP/IP master

Allen-Bradley DF1 Point-to-Point PLC5 master

Allen-Bradley DF1 Point-to-Point SLC-500 master.
Connectors
RS232
This DTE RS232 serial port connected to the communications port of
the PLC. Either this port or the RS485 port is selected in the
configuration; both do not operate at the same time.
ALARM BLOCK
1 2 3 4 5 6 7 8 9 10 11 12 13
LINK
Figure 16 P1 Module - Front Panel
Figure 17 P1 Module - Connectors
14 15
ETHERNET RS232
ACT
P1 INSTALLATION
RS485
B1285-P1