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Functions
8.6 Isochrone mode
ET 200M
Operating Instructions, 12/2008, EWA-4NEB780600602-08
173
3.
Settings on the DP slave:
"Object properties" of the DP slave > tab "Isochrone mode"
–
Enable "Synchronize DP slave to constant bus cycle time for DP cycle".
–
Enter the times Ti and To (if "Times Ti and To same for all slaves" has not been set on
the DP master system). Recommendation: Adopt the standard settings for Ti and To.
–
Select the modules to be synchronized and in the "Addresses" tab assign the process
image partition that has been defined in the CPU.
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Figure 8-23 DP slave properties dialog box
Note
If, in the "Edit" menu you click on "Isochrone mode", you will be shown a configuration
overview of the isochrone modules.
Note
An ET 200M with analog input / output modules does not work in isochrone mode if
the format of the analog values has been configured as SIMATIC S5.
4.
Setting up a user program:
–
Setting up the OB 61.
–
At the beginning of the OB 61 the SFC 126 must be called in order to update the part
process image of the inputs.
–
At the end of the OB 61 the SFC 127 must be called in order to update the part
process image of the outputs.
–
Here, use the part process image that has been configured in the CPU ("Synchronous
cycle interrupts" tab).
Содержание IM 153-4 PN
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Страница 226: ...Interrupt error and system messages 9 2 PROFINET IO ET 200M 224 Operating Instructions 12 2008 EWA 4NEB780600602 08 ...
Страница 254: ...Order Numbers for the ET 200M ET 200M 252 Operating Instructions 12 2008 EWA 4NEB780600602 08 ...
Страница 268: ...Glossary ET 200M 266 Operating Instructions 12 2008 EWA 4NEB780600602 08 ...