Siemens S7-300 - Page 30

30
Product Information on the Manual S7-300 Module Specifications, Edition 11/2002
A5E00213444-02
Processing and Output Update Time
The same time conditions are always applicable, irrespective of the number of
channels programmed.
CH3
CH2
CH1
CH0
200ms
D/A-Conversion and Internal Processing Output Update
T
WA
T
O
1400ms
Figure 9 Calculation of the Processing Time and Output Update Time
Description of the Method of Functioning in Synchronous Operation
At time T
O
– T
WA
, the module reads in the output data and saves the data
internally. Following internal processing time for each channel, the results are
written to each D/A converter.
Additional Information
You will find additional information about synchronous operation in the STEP 7
online Help, the ET 200M Distributed I/O System manual and in the Manual Clock
Synchronization.