Vertiv Liebert iCOM - Page 153

Port
The TCP port used by the Modbus server to listen for and respond to Modbus protocol requests based on Limit
Network Access Type setting.
Maximum Client Connection Count
Displays the maximum client connection count.
Configuring Modbus RTU Protocol
1. Touch , then > BMS & Teamwork > IS-Unity  Setup > Protocols > Modbus RTU.
2. Enter the Node ID and the Baud Rate.
• The Node ID defaults to 1, but must have a value from 1 to 247 that is unique among devices connected
through the RS-485 interface.
• The default baud rate is 9600. 19200 and 38400 are also available.
NOTE: Contact your system administrator if you are uncertain about the settings.
3. Touch Save.
4. Restart Unity:
a. Touch , then > BMS & Teamwork > IS-Unity  Settings.
b. Touch Restart IS-Unity., then touch Yes.
Modbus RTU Settings
Node ID
Modbus Server ID for the interface; obtain from network administrator.
Baud Rate
Communication rate.
• 9600
• 19200
• 38400
Parity Check
The communication parity check.
• None
• Even
• Odd
8 External Monitoring andBuilding ManagementSystems
145
Vertiv™ Liebert® iCOM™Installer/User Guide