Specifications

Error Codes
B-2
S7-200 Programmable Controller System Manual
C79000-G7076-C233-01
B.1 Fatal Error Codes and Messages
Fatal errors cause the CPU to stop the execution of your program. Depending on
the severity of the error, a fatal error can render the CPU incapable of performing
any or all functions. The objective for handling fatal errors is to bring the CPU to a
safe state from which the CPU can respond to interrogations about the existing
error conditions.
The CPU performs the following tasks when a fatal error is detected:
 Changes to STOP mode
 Turns on both the System Fault LED and the Stop LED
 Turns off the outputs
The CPU remains in this condition until the fatal error is corrected. Table B-1
provides a list with descriptions for the fatal error codes that can be read from the
CPU.
Table B-1 Fatal Error Codes and Messages Read from the CPU
Error Code
Description
0000 No fatal errors present
0001 User program checksum error
0002 Compiled ladder program checksum error
0003 Scan watchdog time-out error
0004 Internal EEPROM failed
0005 Internal EEPROM checksum error on user program
0006 Internal EEPROM checksum error on configuration parameters
0007 Internal EEPROM checksum error on force data
0008 Internal EEPROM checksum error on default output table values
0009 Internal EEPROM checksum error on user data, DB1
000A Memory cartridge failed
000B Memory cartridge checksum error on user program.
000C Memory cartridge checksum error on configuration parameters
000D Memory cartridge checksum error on force data
000E Memory cartridge checksum error on default output table values
000F Memory cartridge checksum error on user data, DB1
0010 Internal software error
0011 Compare contact indirect addressing error
0012 Compare contact illegal floating point value
0013 Memory cartridge is blank, or the program is not understood by this CPU