Specifications

Commissioning and Diagnostics
7-29
ET 200S IM 151-7 CPU Interface Module
A5E00058783-04
7.7.3 Channel-specific diagnostic data from byte 8 onwards
From byte 8 onwards, data record 1 contains the channel-specific diagnostic data.
The figures below show the assignment of the diagnostic byte for a channel and a
channel group of the specific module. The following generally applies: If an error
occurs, the corresponding bit is set to ”1”.
Single fault of a channel
”Byte y” is the first of four bytes of the channel-specific diagnostics for a channel.
76 0
Power supply too low (lower tolerance violation)
Power supply too high (upper tolerance violation)
Output stage overloaded
Signal line interrupted or sensor power supply faulty
54321
R
Output stage overloaded and overheated
Short circuit
Upper limit violation
Byte y
76 0
Lower limit violation
Fault, e.g.: hardware fault in module, sensor power supply faulty,
contactor jammed, load voltage at output, etc.
54321
Byte y+1
76 0
Unclear fault: fault must be specified more precisely
54321
Condition for safety shutdown exists
Byte y+3
R
RRRRR
R = Bit is reserved
76 0
Fuse faulty (must be changed by the user)
Ground fault
Process interrupt lost
54321
Error on the reference channel
Sensor or load voltage missing
Actuator warning; e.g.: speed or load current exceeded
Byte y+2
Parameter assignment error
R
Actuator shutdown; e.g.: safety shutdown, ground
fault, thermistor has been triggered, etc.
RRRR
External fault; e.g.: fault at sensor/actuator, etc.
Figure 7-12 Single fault of a channel