Siemens Simatic S7-200 CPU 210 System Manual page 120

Error Handling and Error Codes
The PDS 210 remains in this condition until the fatal error is corrected. Table C-2 provides a
list with descriptions for the fatal error codes that can be read from the PDS 210.
Table C-2 Fatal Error Codes and Messages Read from the PDS 210
Error Code
0000
0001
0002
0003
000A
000B
0010
0013
Handling of Fatal Errors for the CPU 210
Any error detected by the CPU 210 is treated as a fatal error. Depending on the severity of
the error, a fatal error can render the CPU 210 incapable of performing any or all functions.
When the CPU 210 detects a fatal error, it turns on the fault indicator and clears the outputs.
It remains in this condition until the error has been corrected and the power has been cycled.
The CPU 210 can detect the following error conditions:
Error during the power-up diagnostics: these errors can indicate faulty hardware, but
more often are caused by turning power on with an invalid memory cartridge installed.
For a memory cartridge that does not contain a program or that contains a program for a
different S7-200 CPU (not a CPU 210), remove the memory cartridge (and install a
memory cartridge with a valid CPU 210 program) and then cycle the power to the
CPU 210.
Watchdog time-out errors: these indicate that the user program is using Jump instructions
without resetting the watchdog timer. Refer to Section 5.8 for information about the
Watchdog Reset (WDR) instruction.
C-2
No fatal errors present
User program checksum error
Compiled ladder program checksum error
Scan watchdog time-out error
Memory cartridge failed
Memory cartridge checksum error on user program
Internal software error
Memory cartridge is blank or the program is not understood by the PDS 210 (or the
CPU 210)
Description
S7-200 Programmable Controller, CPU 210
C79000-G7076-C235-01