Configuration notes: Clock synchronicity is used to establish a direct connection between the equidistant DP cycle, the I/O modules and the user program.
The following SIMATIC components support clock-synchronicity functionality:
- S7-300 CPUs
- CPU 315 and CPU317 as DP masters from FW 2.5
- CPU 319 as DP masters from FW2.4
- S7-400 standard and S7-400F CPUs as DP masters from FW 3.1
- ET 200M with selected modules
- ET 200S with selected modules
- Repeaters and diagnostics repeaters
Please note that only the internal DP interfaces on the CPUs can be used for clock-synchronicity communication.
STEP 7 V5.2 or higher is required for configuration purposes.
The drives which support the clock-synchronicity functionality are the entire product group comprising "SIMODRIVE 611U", "SINAMICS" and "MASTERDRIVE MC".
The following are required in order to configure the drives: Drive ES Basic V5.2 or higher, STEP 7 V5.2 or higher and one of the CPUs mentioned above.
You can find a list with the precise designations of the SIMATIC modules, which support clock-synchronicity functionality, in the manual SIMATIC Clock Synchronicity in subsection 2.2.1 of Entry ID 15218045
Keywords: Constant bus cycle time, Compatibility list
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