Siemens Simatic S7-200 CPU 210 User Manual

2-18
S7-200 Programmable Controller, CPU 210
C79000-G7076-C235-01
Responding to Non-Fatal Errors
Non-fatal errors can degrade some aspect of the PDS 210 performance, but they do not
render the PDS 210 incapable of executing your program or from updating the I/O. As shown
in Figure 2-16, you can use STEP 7-Micro/WIN to view the error codes that were generated
by the non-fatal error. For the PDS 210, there are two basic categories of non-fatal errors:
S Run-time errors. All non-fatal errors detected in RUN mode are reflected in special
memory (SM) bits. Your program can monitor and evaluate these bits. Refer to
Appendix B for more information about the SM bits used for reporting non-fatal run-time
errors.
S Program-compile errors. The PDS 210 compiles the program as it downloads. If the
PDS 210 detects that the program violates a compilation rule, the download is aborted
and an error code is generated. (A program that was already downloaded to the PDS 210
would still exist in the EEPROM and would not be lost.) After you correct your program,
you can download it again.
The PDS 210 does not change to STOP mode when it detects a non-fatal error.
Installing and Using the STEP 7-Micro/WIN Version 2.0 Software

Siemens Simatic S7-200 CPU 210 Specifications

General

Brand	Siemens
Model	Simatic S7-200 CPU 210
Category	Controller
Language	English