Module Overview - Siemens SIMATIC S7-400 Reference Manual

Analog modules

5.2 Module overview

5.2 Module overview
Features of the analog modules
The tables below set out the main features of the analog modules. This summary is designed
to help you select the right module for your requirements.
Table 5-1 Analog input modules: Summary of features
Properties
AI 8 x 13 bit
Number of inputs 8 AI for U/I
measure‐
ment
4 AI for re‐
sistance
measure‐
ment
Resolution 13 bits
Type of measure‐ Voltage
ment
Current
Resistance
Measuring principle Integrating
Configurable diag‐ No
nostics
Diagnostic interrupt No
Threshold value No
monitoring
Hardware interrupt No
upon limit violation
Hardware interrupt at No
end of cycle
Voltage relationships Analog section isolated from the CPU
164
SM 431; SM 431;
AI 8 x 14 bit
(-1KF00-) (-1KF10-)
8 AI for U/I
measure‐
ment
4 AI for re‐
sist. / temp.
measure‐
ment
14 bits
Voltage
Current
Resistance
Tempera‐
ture
Integrating
No
No
No
No
No
SM 431; SM 431;
AI 8 x 14 bit AI 16 x 13 bit
(-1KF20-) (-0HH0-)
8 AI for U/I 16 inputs
measure‐
ment
4 AI for re‐
sistance
measure‐
ment
14 bits 13 bits
Voltage Voltage
Current Current
Resistance
Instantane‐ Integrating
ous value
encoding
No No
No No
No No
No No
No No
Non-isola‐
ted
Reference Manual, Ausgabe 11/2016, A5E00850736-08
SM 431; SM 431;
AI 16 x 16 bit AI 8 x RTD
16 bit
(-7QH00-)
(-7KF10-)
16 AI for U/ 8 inputs
I / temp.
measure‐
ment
8 AI for re‐
sistance
measure‐
ment
16 bits 16 bits
Voltage Resistance
Current
Resistance
Tempera‐
ture
Integrating Integrating
Yes Yes
Can be set Yes
Can be set Can be set
Can be set Can be set
Can be set No
Analog section isolated from the CPU
S7-400 Automation System Module Data
SM 431;
AI 8 x 16 bit
(-7KF00-)
8 inputs
16 bits
Voltage
Current
Tempera‐
ture
Integrating
Yes
Yes
Can be set
Can be set
No