Standard Diagnostics - Siemens SIMATIC ET 200SP Manual

Diagnostics, error and system alarms

5.3 Standard diagnostics

5.3 Standard diagnostics
Standard diagnostics
The coding of the standard diagnostic bytes is explained below.
Byte 0: Station status 1
Table 5- 3 Structure of station status byte 1
Bit no. Name
7 Master_Lock
6 Parameter_Fault
5 Invalid_Slave_Response
4 Service_Not_Supported
3 Ext_Diag
2 Slave_Config_Check_Fault
1 Station_Not_Ready
0 Station_Non_Existent
20
Explanation
The DP slave was configured by a different DP master. The DP slave can only be
accessed read-only by the DP master configured as productive.
This bit is set by the DP master when its bus address does not match the
configured address.
The most recently received parameter frame was corrupt or not permitted. This bit
is set by the DP slave.
Remedy: Check the parameter assignment with respect to invalid parameters.
This bit is set by the DP master if an implausible response has been received by
the DP slave.
This bit is set by the DP master if a function is called by the master that is not
supported by the DP slave.
Remedy: Disable the parameter assignment of the required function at the master.
This bit is set by the slave.
Bit =1: Diagnostic data is available in the diagnostic area specific to the slave.
•
The diagnostic data can be evaluated in the user program of the master.
Bit =0: A status message can be available in the diagnostic area specific to the
•
slave. The status message can be evaluated in the user program of the master.
The configuration data sent by the DP master is rejected by the DP slave.
Cause: Configuration error. Remedy: Change the configuration.
The DP slave is not yet ready for productive data exchange.
This is a temporary condition and cannot be influenced by the DP master.
The DP slave is not responding on the bus.
This bit is set by the DP master 1 (the slave permanently sets this bit to 0). If the bit
is set, the diagnostic bits contain the status of the last diagnostic alarm or the initial
value.
Communication module CM DP (6ES7545-5DA00-0AB0)
Manual, 12/2014, A5E33619758-AB