Vertiv Liebert iCOM User Manual

8.2.12 Modbus Protocol Setup
1. Touch , then > BMS & Teamwork > IS-Unity  Setup > Protocols > Modbus.
2. Adjust the settings, and touch Save.
3. Configure the Modbus interface chosen. See Configuring Modbus TCP Protocol below , or Configuring Modbus
RTU Protocol on the facing page .
Modbus Settings
Managed Device Write Access
Enable or disable the Modbus server to write to the managed device
Modbus Interface
Select the Modbus interface, either Modbus TCP or Modbus RTU
Configuring Modbus TCP Protocol
The Modbus TCP permits connection to the card by:
• Any client (open) permits communication by any IP address.
• Clients on the same subnet as the Unity card.
• Clients with specific IP addresses (Trusted IP Lists); only five addresses are permitted.
To configure Modbus TCP
1. Touch , then > BMS & Teamwork > IS-Unity  Setup > Protocols > Modbus TCP.
2. Adjust the settings, and touch Save.
3. Restart Unity:
a. Touch , then > BMS & Teamwork > IS-Unity  Settings.
b. Touch Restart IS-Unity., then touch Yes.
Modbus TCP Settings
Limit Network Access Type
IP Access List
• Open
• Same Subnet
• Trusted IP List
8 External Monitoring andBuilding ManagementSystems
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Vertiv™ Liebert® iCOM™Installer/User Guide

Vertiv Liebert iCOM Specifications

General

Brand	Vertiv
Model	Liebert iCOM
Category	Control Unit
Language	English