D.8 Response Times For A 4 Iq-Sense Electronic Module - Siemens Simatic ET 200S Operating Instructions Manual

Response times

D.8 Response times for a 4 IQ-SENSE electronic module

Response time
The response time (t
internal memory until the specified value is obtained at the analog output - is, in the most
unfavorable case, the sum of the cycle time and the settling time. The most unfavorable case
is when the analog channel is converted shortly before the transfer of a new output value
and is not converted again until after the conversion of the other channels (cycle time).
This figure shows the response time of an analog output channel:
t
1
Figure D-6
t
A
t
Z
t
E
t
1
t
2
t
3
Reference
Information on the input delays of the respective analog electronic modules is to be found in
the
D.8 Response times for a 4 IQ-SENSE electronic module
D.8
The response time of the 4 IQ-SENSE electronic module is specified as a cycle time in the
Technical Data.
D.9 Response times for technology modules
D.9
The response times of the technology modules are specified as response time or update rate
in the Technical Data. See
D-8
to t ) i.e., the time from the application of the digital output values in
1 3
t
A
t
E
t
Z
t
2
Response time of an analog output channel
Response time
Cycle time, corresponding to the processing time of the module and the conversion time of
the channel
Settling time
new digital value applied
output value transferred and converted
specified output value obtained
ET 200S device manual
t
3
in the Technical Data of the relevant modules.
ET 200S Technological Functions
Manual.
Operating Instructions, 12/2005, A5E00515771-03
ET 200S