Siemens SIMATIC User Manual

Principles of analog modules
5.5 Conversion and cycle times of analog modules
S7-300 Module data
292 Manual, 06/2017, A5E00105505-AJ
①
Low smoothing grade
②
Medium smoothing grade
③
High smoothing grade
Figure 5-6 Example of impact of smoothing on the step response with the AI 6 x TC
Further information on smoothing
For information showing whether a specific module supports smoothing functions, and
special features to observe, refer to the chapter dealing with the analog input module.
Conversion time of the analog output channels
The conversion time of the analog output channels includes the transfer of digitized output
values from internal memory, and their digital-to-analog conversion.
Cycle time of analog output channels
Analog output channels are converted sequentially, i.e. successively.
The cycle time, i.e. the time expiring until an analog output value is converted again, is
equivalent to the accumulated conversion times of all activated analog output channels.
Refer to the figure
Cycle time of an analog IO channel .
Tip
You should disable all unused analog channels in STEP 7 in order to reduce cycle times.

Siemens SIMATIC Specifications

General

Product type designation	SIMATIC
CPU	Varies by model
Memory	Varies by model
Input/Output	Varies by model
Communication	Varies by model
Programming Language	STEP 7
Operating Temperature	0°C to 60°C (varies by model)
Protection Class	IP20
Category	Programmable Logic Controller (PLC)