Time Stamping With 3 Ms Accuracy; Time Synchronization With Flexible Time Interval - Siemens SIMATIC ET 200M Manual

Configuration Options with the ET 200M
3.4.2

Time Stamping with 3 ms Accuracy

Prerequisites
The following configuration is permitted for time stamping with 3 ms accuracy:
S IM 153-2 (as of 6ES7 153-2Bx00-0XB0)
S DI modules
– SM 321; DI 16 x 24 V DC; with diagnostics
6ES7 321-7BHx0-0AB0
The synchronization interval must be set to 10 seconds.
Rules
The following rules must be observed:
S The accuracy level applies throughout the entire station.
S A station can have a maximum of 128 DI modules.
S The parameterized input delay must be identical for all DI modules.
S No analog signals are processed in the station.
S No CP or FM modules are permitted in the station.
3.4.3

Time Synchronization with Flexible Time Interval

The synchronization interval can be set in the configuration tool.
The longer the set synchronization interval is, the lower the accuracy of time
stamping will be.
3-8
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Distributed I/O Device ET 200M
EWA-4NEB780600602-06