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Online or Offline Heartbeat |
N1 |
Not used |
N2 |
99 |
N3 |
Not used |
N4 |
Not used |
Use this Tag to monitor the current status of heartbeat messages transmitted periodically by this Driver when configured to communicate in Connection Monitoring mode. Possible return values for this Tag are 0: Indicates that a device is not responding to heartbeat messages, that is, this device is in Offline mode or 1: Indicates that a device is responding normally to heartbeat messages, that is, this device is in Online mode.