Enable Communication Protocols; Enable Protocols - Emerson Liebert Intellislot Unity Card User Manual

3.0 Enable Communication Protocols

The Liebert IntelliSlot Unity card will communicate with equipment and third-party systems over these
protocols:
• BACnet IP
• BACnet MSTP
• Modbus TCP
• Modbus RTU
• SNMP
• YDN23
NOTE
No more than two protocols may be enabled on one card.
• Only one version of BACnet may be selected, either BACnet IP or BACnet MSTP
• Only one version of Modbus may be selected, either Modbus TCP or Modbus RTU
• Only one of the protocols can use the 485 port; choosing two 485 protocols will cause conflicts.
NOTE
Some Building Management Systems can be configured to send continuous updates for device
setpoints, usually setting the same value. The BMS should be configured to send, on a sustained
average, no more than two writes per second to the device. This will allow the device to catch up
after a burst of updates when required while allowing other communication with the device to
proceed.

3.1 Enable Protocols

Protocols may be enabled after a card has been installed and configured. After a protocol is enabled, it
must be configured, which requires opening that protocol's folder (Communications tab > Protocols >
(desired protocol).
To enable two communication protocols:
1. Select Communications tab > Protocols.
2. Click Edit and enter the administrator user name and password.
3. Put a check mark next to the protocols to use—Only two may be enabled; only one of the two can use
the 485 port.
4. Click Save to confirm the changes or Cancel to discard them.
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15 Liebert IntelliSlot
Enable Communication Protocols
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Unity Card User Manual