Modbus TCP/IP Server

Devices connected downstream from the Panel Server can be accessed from an upstream edge system through Modbus TCP/IP.

This function is available on Panel Server Universal and Advanced.

Modbus TCP/IP server function is set as follows:

With EcoStruxure Power Commission software
On the Panel Server webpages, at Settings > Modbus devices > Network configuration > Modbus TCP server.

The following table describes the settings and where they are available.

Parameter	Description	EPC software	Webpages
Message timeout (ms)	In Modbus network configuration, you can set the message timeout period for the Modbus TCP server. Setting used to set the time-to-live of a Modbus request in the Panel Server. Any messages older than this setting will be dropped. Values from 1,000 to 320,000 ms (default setting: 6,000 ms) The value that you set for the Modbus TCP server must meet both following conditions: Be equal to the message timeout that is defined on the upstream Modbus client (SCADA or another Panel Server). Be higher than the timeout defined in the Panel Server Modbus client setting (Modbus TCP/IP and Modbus-SL). For recommendations and more information about setting the parameter, refer to Setting Message Timeout for Modbus Client and Server.	–	✔

Parameter

Description

EPC software

Webpages

Message timeout (ms)

In Modbus network configuration, you can set the message timeout period for the Modbus TCP server.

Setting used to set the time-to-live of a Modbus request in the Panel Server. Any messages older than this setting will be dropped.

Values from 1,000 to 320,000 ms (default setting: 6,000 ms)

The value that you set for the Modbus TCP server must meet both following conditions:

Be equal to the message timeout that is defined on the upstream Modbus client (SCADA or another Panel Server).
Be higher than the timeout defined in the Panel Server Modbus client setting (Modbus TCP/IP and Modbus-SL).

For recommendations and more information about setting the parameter, refer to Setting Message Timeout for Modbus Client and Server.

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