Siemens SIMATIC S7-300 Module data Reference Manual

Analog Modules
4-37
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Example
The following figure shows the number of module cycles for a step response after
which the smoothed analog value is approximately 100% applied, as a function of
the smoothing that has been set. The figure applies to every change of signal at
the analog input.
50
100
0
63
50 100
150
200
Smoothing: low:
average:
high:
Module cycles
Signal variation
in percent
Step response for any analog input signal
Figure 4-5 Example of the Influence of Smoothing on the Step Response
Additional information on smoothing
Refer to the specific section on the analog input module (from Section 4.22) to
determine whether smoothing can be set for the specific module and for any
special features that have to be taken into account.
Conversion time of the analog output channels
The conversion time of the analog output channels comprises the transfer of the
digitized output values from the internal memory and the digital-to-analog
conversion.
Scan time of analog output channels
The analog output channels are converted sequentially – in other words, the
analog output channels are converted one after the other.
The scan time – in other words, the time elapsing until an analog output value is
again converted, is the sum of the conversion times of all activated analog output
channels (refer to 4-4).

Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)