# Tunnel Command

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This functionality is used to send an serial command over DeviceNet interface. This enables some turnaround solution if a specific acyclic object is not available over DeviceNet interface.

Service (hex): 34

Class (hex): 30

Instance: 01

Service data: ASCII command in HEX format

Here an example how to send an IC2 command with the tunnel command:

This command disable the Follow Valve option for an external isolation valve.

Possible Failure Response: