Communication 
  11.10 DR 7 Process interfaces 
SIWAREX WT241 
Manual, 05/2015, A5E36046748Aa  131 
11.10.9  Start value for the analog output 
This parameter defines the specified value at which 0 or 4 mA is output. The value can be 
greater or less than the end value. 
11.10.10  End value for the analog output 
This parameter defines the specified value at which 20 mA is output. The value can be 
greater or less than the start value. 
11.10.11  Output value following fault or SIMATIC STOP 
The default settings set the analog output to the defined value following a module fault 
(operating error) or upon SIMATIC CPU STOP. 
If the analog output is, for example, to be set to 3.5 mA following a fault, this is defined with 
this parameter. The current value to be output is entered. 
System can be switched to unsafe state 
If the analog output is to be set to a given value following a fault (operating error), you must 
ensure that this poses no danger. 
11.10.12  Trace recording cycle 
The trace function is used for the continuous recording of measured values. The recording 
rate is defined with the parameter. 
 
11.10.13  Trace storage method 
This parameter is used to specify the response of the trace memory.