Chatsworth Products Remote Infrastructure Management System Protocol Converter - Manual (Page 66)

RIM-Protocol Converter User Guide - Version 1.0
66 www.chatsworth.com
Table B.1 Troubleshooting the Protocol Converter (continued)
Problem Action
Slave units are showing loss
of communication.
1) Check the Device Configuration in the Protocol
Converter and make sure the proper addressing is
assigned.
a) Modbus-RTU/485: The device address is set to
the proper RTU address and the 485 communica-
tions line is wired properly.
b) Modbus TCP/IP: The Proper device address and
IP address has been assigned. Modbus TCP/IP-
communications requires port 502 of that IP
address to be enabled/open. Check with IT to
make sure there is not a firewall or port blocking
on port 502.
c) SNMP: Check the IP address and community that
was configured on the Protocol Converter for
communication. Port 161 of the IP address is
used for SNMP get data. Check to make sure this
port is open.
d) BACnet: Check the IP address and device number
configured on the Protocol Converter. The default
port used for BACnet data is port 47808. Check
with IT to make sure this port is open for
communication on the network.