PAC RS485
Manual, 02/2008, A5E02091800B-01
63
Alarm, error, and system messages
8
8.1 Diagnostics concept
Diagnostics options
The following diagnostics options are available:
● A two-color LED on the PAC RS485 expansion module
● Evaluation of the following measured variables by the master or following display on the
SENTRON PAC Power Monitoring Device:
– Limit violations
– Device diagnostics and device status
– Status of the digital inputs
– Status of the digital outputs
– Limit violations counter
● Evaluation by the master of the exception codes and error codes contained in the
message frame
See also
Diagnostics LED (Page 64)
Modbus measured variables with the function codes 0x03 and 0x04 (Page 33)
Structure - Digital input status and digital output status with the function codes 0x03 and
0x04 (Page 38)
Structure - Device diagnostics and device status with the function codes 0x03 and 0x04
(Page 38)
Structure - Limit values with function codes 0x03 and 0x04 (Page 39)
Function codes (Page 31)
Exception codes (Page 33)
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