# Substation ES Operations

You can implement different operational functions on Substation ES Interface.

The operational functions include the following:

- Auto Recovery of Messages When EMS is the ESB
- System Property Fields
- Substation ES HeartBeat Events
- Writing Substation ES Messages to SYSLOG
- Sites with Multiple Stacks
- Detecting Network Connection Failures with EMS ESB
- Sending Variable Length Messages
- Exceptional Cases

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