Tools for Device Failure

The devcom toolkit provides the current status of a device connection to Point Management (PTM). Whenever the status of the connection changes the devcom will send a message to Point Management.

Point Management will set a global point based on the status of the device connection.

If there is a failure in the:


All the devices for the devcom are marked unavailable

Remote PTM

All of the remote devices are marked unavailable

Local PTM

The application fails over to the remote PTM

The remote PTM marks the local devices as unavailable  

A global BOOLEAN array point of two (2) elements indicates the status of the device connection.

The value of

Indicates that the devcom


Is communicating with the device


Is not communicating with the device

More information

Manual redundancy overview.