Changes In Hw Config - Siemens SIMATIC PCS 7 Operating Manual

Function test
To test your functions, you can use S7-PLCSIM or, depending on your PCS 7 version, you
can download your program to a real test AS. Use the "Load to test AS" function in both
cases. To perform testing with S7-PLCSIM, start S7-PLCSIM and download HW Config and
the CFC charts. Depending on the version of S7-PLCSIM you are working with, you may
need to enter either the password "plcsim" (up to PLCSIM V5.3) or the configured CPU
password (PLCSIM V5.4 and higher) in order to download CFC charts. Testing with S7-
PLCSIM is not a substitute for carrying out a function test in the plant.
9.4

Changes in HW Config

CIR allows your to add or remove F-signal modules at the end of an ET 200M rack. When
parameters are changed on a F-signal module, the download process is rejected by the
system with an error message. When using the S7 F Configuration Pack V5.5 SP12, you will
receive a note informing you that download is only possible when the AS is in STOP.
F-signal modules can be added or removed in the HW Config in a fault-tolerant system.
Changes to the configuration of a existing F-signal module lead to passivation of the module
after the hardware configuration has been downloaded. The changes in the CFC must be
compiled and downloaded. All F-channel drivers of the module must then be acknowledged
or the module must be unplugged and plugged back in again. If changes are required, check
of the signals are necessary for the process that is currently running. Establish (within the
context of a risk assessment, if necessary) whether signal simulation is permissible.
Signature value of the signal module
Safety-related settings of the fail-safe signal modules are entered in the signature of the fail-
safe program. The signature value of a fail-safe signal module appears as an input
parameter on the F-module driver.
To update this value, after safety-related parameters have been changed in the HW
configuration the changes need to be compiled using "Generate module drivers" and
downloaded in the CFC editor.
Safety information
In HW Config, you will receive a message when you make changes to safety-related
parameters. If you are unable to or do not wish to finalize the changes for the reason
specified above, you can cancel them here and close HW Config without saving.
Compendium Part B - Process Safety (V8.2)
Operating Manual, 07/2016, A5E35031794-AB
Changes, tracking changes, and acceptance
9.4 Changes in HW Config
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