Configuring
6.3 Configuring the interface module
Distributed I/O system
System Manual, 12/2016, A5E03576849-AG
149
Synchronous cycle interrupt OB
In the synchronous cycle interrupt OBs, you use the "SYNC_PI" and "SYNC_PO" operations
to update the process image partitions of the operations. For additional information on the
synchronous cycle interrupt OBs, refer to the STEP 7 Online Help.
Direct I/O access to the inputs and outputs of the module
You also have direct read and write access to the I/O, as an alternative to access via the
process image, should direct access be required for programming reasons. This prevents a
subsequent output of the process image from again overwriting the value written by direct
access.
Additional information on process image partitions is available in the function manual, Cycle
and response times (http://support.automation.siemens.com/WW/view/en/59193558).
Configuring the interface module
Configuring
Read the STEP 7 online help and/or the documentation of the configuration software
manufacturer when configuring the interface module.
The F-destination address is saved permanently on the coding element of the ET 200SP fail-
safe modules. Fail-safe motor starters do not need an F-destination address or a coding
element.
L+ must be applied to the F-module when the F-destination address is
Note
Note the following in conjunction with configuration control:
Before you can use configuration con
trol together with F-modules, you must assign the F-
destination address to the F
-modules at the designated slots. For this, each F-module must
be inserted in the slot configured for it. The actual configuration can then differ from the
specified configurat
ion.
For additional information on assigning the F-destination address, refer to the SIMATIC
Safety - Configuring and Programming
(http://support.automation.siemens.com/WW/view/en/54110126) Programming and
Operating Manual and to the online help for the
S7 Configuration Pack
.
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