Chatsworth Products Remote Infrastructure Management (RIM-1000) - Manual (Page 129)

Remote Infrastructure Management System - Version 1.0 / July 2014
Chatsworth Products, Inc. (CPI) • 800-834-4969 129
C H A P T E R
4
ADVANCED COMMUNICATIONS -
MODBUS, BACNET, AND TELNET
4.1. Modbus
The RIM-1000 supports the following from the factory:
• Modbus Master (RTU) over EIA-485 or EIA-232
• Modbus Slave (RTU) over EIA-485 or EIA-232
• Modbus Master (TCP/IP)
• Modbus Slave (TCP/IP Port 502) over Ethernet
The RIM-1000 can operate as a Master over EIA-485 (or EIA-232) and as a Slave over Ethernet at the same time. The RIM-1000
can operate as a Slave over EIA-485 (or EIA-232) and as a Slave over Ethernet at the same time. The RIM-1000 can NOT operate
as a Master over EIA-485 (or EIA-232) and as a Slave over EIA-485 (or EIA-232) at the same time.
Most basic Modbus Master configuration information can be found in “Modbus/SNMP/ BACnet/Telnet Master” on page 96. Most
basic Modbus Slave information can be found in “Modbus/SNMP/BACnet Slave Units” on page 99. Once you’ve exhausted the
resources in Chapter 3, refer this chapter for more complex configuration information.
.
4.2. Hardware Connections
The Modbus connections are located on the back of the RIM-1000. There are status LEDs to indicate if COM Port 1 is configured
(in software) for EIA-232 or EIA-485. The COM Port 1Transmit and Receive LEDs are also located on the back of the RIM-1000.