Commissioning, service, troubleshooting   
13.4 Troubleshooting 
  SIMOCODE pro 
288  System Manual, 05/2019, A5E40507475002A/RS-AD/004 
13.4  Troubleshooting 
13.4.1  Error buffer 
SIMOCODE pro has an error buffer in which the 21 most recent errors / faults and "Power - 
On" events are recorded with a time stamp. Time stamps are based upon the operating 
hours of the device (resolution 1 s), i.e. the length of time for which the device is supplied 
with control supply voltage. 
The "Error/Fault" and "Power - On" events are logged. Each of these events is given a time 
stamp. 
●  Error/Fault: The last 21 errors are stored in a ring buffer; the incoming error (rising edge) 
is always logged. An outgoing error (falling edge) will not be logged. 
●  Power on: If the most recent entry is "Power - On," this is not logged multiple times. 
Instead, the error number is used as a power-on counter. Thus, the error buffer cannot be 
deleted by frequent on/off operations. 
Entry 1 is the most recent entry and entry 21 the oldest. 
This data is displayed via the "SIMOCODE ES (TIA Portal)".