Revision: 3.0 Page 31 of 71
9. Diagnostics
9.1. Modbus - heater
An overview of the up to 32 IC4000s connected to this control unit is displayed.
Current status:
ok No pending errors
?? No communication between operating unit and control unit
-- ABCU not available at this address or not assigned to any zone
-? Modbus communication error
Number Code number of the pending error [for error codes see IC4000 documentation, not part of
this documentation]
Figure 30: Modbus error counter - heater
Current status of
the IC4000
Figure 31: Information content of the overview