Analog modules
6.2 Module overview
S7-300 Automation System Module data
6-4 Manual, 08/2006, A5E00105505-04
Module
Properties
SM 331; AI 8 x 16 Bit
(-7NF00-)
SM 331; AI 8 x 16 Bit
(-7NF10-)
SM 331; AI 8 x 14 Bit
High Speed
(-7HF0x-)
SM 331; AI 8 x 13 Bit
(-1KF01-)
Potential ratios electrically isolated to:
• the backplane bus
interface
electrically isolated to:
• the backplane bus
interface
electrically isolated to:
• the backplane bus
interface
• load voltage (not
applicable to 2-
DMU)
electrically isolated to:
• the backplane bus
interface
permissible
potential difference
between inputs
(ICM)
50 VDC 60 VDC 11 VDC 2.0 VDC
Special features - - - -
Sign
2-DMU 2-wire measuring transducer
Table 6-2 Analog input modules: Overview of properties (continued)
Module
Properties
SM 331;
AI 8 x 12 bit
(-7KF02-)
SM 331;
AI 2 x 12 bit
(-7KB02-)
SM 331;
AI 8 x TC
(-7PF11-)
SM 331;
AI 8 x RTD
(-7PF01-)
SM 331; AI 8 x
0/4...20 mA HART
(-7TF00-)*
Number of
inputs
8 inputs in 4
channel groups
2 inputs in 1 channel
group
8 inputs in 4
channel groups
8 inputs in 4
channel groups
8 inputs in 1
channel group
Resolution adjustable for
each channel
group:
• 9 bits+sign
• 12 bits+sign
• 14 bits+sign
adjustable for each
channel group:
• 9 bits+sign
• 12 bits+sign
• 14 bits+sign
adjustable for each
channel group:
• 15 bits+sign
adjustable for each
channel group:
• 15 bits+sign
adjustable for each
channel group:
15 bits+sign
Measuring
method
adjustable for
each channel
group:
• Voltage
• Current
• Resistance
• Temperature
adjustable for each
channel group:
• Voltage
• Current
• Resistance
• Temperature
adjustable for each
channel group:
• Temperature
adjustable for each
channel group:
• Resistance
• Temperature
adjustable for each
channel group:
• Voltage
• Current
• Resistance
• Temperature
Measuring
range
selection
any, per channel
group
any, per channel
group
any, per channel
group
any, per channel
group
any, per channel
group
Programmabl
e diagnostics
Yes Yes Yes Yes Yes
Supports
isochronous
mode
No No No No No
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