Option" Dialog Box - Siemens SIMATIC ET 200M Manual

Configuration Options with the ET 200M
2. Settings at the DP master system:
"Object Properties" of the DP master > "General" tab > "Properties" button >
"Parameters" tab > "Properties" button > "Network Settings" tab > "Options"
button
– Activate the equidistance at the DP master system.
– Set the length of the equidistant DP cycle (max. 32 ms).
– Set "Times Ti and To identical for all DP slaves" (synchronizes the I/O data
of the various DP slaves).
– Times Ti and To can be set separately.
Recommendation: Accept the default settings for Ti and To.
Equidistance
Activate equidistant bus cycle
Optimize DP cycle (and poss. Ti, To):
Number of PGs/OPs/TDs etc. on PROFIBUS
Configured:
Equidistant DP cycle:
(min = 6.000 ms; max. = 32.000 ms)
Synchronization of Slaves
Times Ti and To identical for all slaves
(if not: setting in Properties - Slaves)
Time Ti (read in process values):
(min = 3.4375 ms; max = 3.5625 ms)
Time To (output process values):
(min = 0.8125 ms; max = 3.5625 ms)
Figure 3-8
Note
If you click the "Recalculate" button, STEP 7 calculates a value for the equidistant
DP cycle; this value takes the current PROFIBUS-DP configuration into
consideration. The value is then automatically entered in the "Equidistant DP
cycle", "Time Ti (...)" and "Time To (...)" fields.
3-18
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Network Station Cables
Total:
0
8.000

"Option" dialog box

Recalculate
0
Graduation:
ms 0.125 ms Details ...
Graduation:
3.5000 ms 0.0625
Graduation:
3.5000 ms 0.0625
Distributed I/O Device ET 200M
EWA-4NEB780600602-06
ms
ms