Fatal Error Codes And Messages - Siemens SIMATIC S7-200 System Manual

S7-200 Programmable Controller System Manual

Fatal Error Codes and Messages

Fatal errors cause the S7-200 to stop the execution of your program. Depending on the severity of
the error, a fatal error can render the S7-200 incapable of performing any or all functions. The
objective for handling fatal errors is to bring the S7-200 to a safe state from which the S7-200 can
respond to interrogations about the existing error conditions.
The S7--200 performs the following tasks when a fatal error is detected:
Changes to STOP mode
-
Turns on both the SF/DIAG (Red) LED and the Stop LED
-
Turns off the outputs
-
The S7-200 remains in this condition until the fatal error is corrected. To view the error codes,
select the PLC > Information menu command from the main menu bar. Table C-1 provides a list
with descriptions for the fatal error codes that can be read from the S7-200.
Table C-1 Fatal Error Codes and Messages Read from the S7- -200
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 Permanent memory failed
0005 Permanent memory checksum error on user program
0006 Permanent memory checksum error on configuration (SDB0) parameters
0007 Permanent memory checksum error on force data
0008 Permanent memory checksum error on default output table values
0009 Permanent memory 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 (SDB0) 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
1
0011 Compare contact indirect addressing error
1
0012 Compare contact illegal floating point value
0013 Program is not understood by this S7-200
1
0014 Compare contact range error
1
The compare contact errors are the only errors that generate both fatal and non-fatal error conditions. The
reason for the generation of the non-fatal error condition is to save the program address of the error.
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