Single Fault Of A Channel; Channel-Specific Diagnostic Data From Byte 8 Onwards - Siemens SIMATIC ET 200S Manual

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.
Byte y
Byte y+1
Byte y+2
Byte y+3
Figure 7-12
ET 200S IM 151-7 CPU Interface Module
A5E00058783-04
7 6 5 4 3 2 1
R
Short circuit
Power supply too low (lower tolerance violation)
Power supply too high (upper tolerance violation)
Output stage overloaded
Output stage overloaded and overheated
Signal line interrupted or sensor power supply faulty
Upper limit violation
7 6 5 4 3 2 1
R R R R R R
Fault, e.g.: hardware fault in module, sensor power supply faulty,
contactor jammed, load voltage at output, etc.
7 6 5 4 3 2 1 0
R
Sensor or load voltage missing
Fuse faulty (must be changed by the user)
Ground fault
Error on the reference channel
Process interrupt lost
Actuator warning; e.g.: speed or load current exceeded
7 6 5 4 3 2 1 0
R R R R
Condition for safety shutdown exists
External fault; e.g.: fault at sensor/actuator, etc.
Unclear fault: fault must be specified more precisely
Single fault of a channel
Commissioning and Diagnostics
0
0
Lower limit violation
Parameter assignment error
Actuator shutdown; e.g.: safety shutdown, ground
fault, thermistor has been triggered, etc.
R = Bit is reserved
7-29