
Analog modules
5.24 Analog input module SM 431; AI 8 x RTD x 16 Bit (6ES7431-7KF10-0AB0)
S7-400 Automation System Module Data
316 Reference Manual, Edition 09/2009, A5E00850736-06
Sensor selection data
Input range (nominal values) / input impedance
Resistance thermometer
Pt 100/> 10M
Pt 200/> 10M
Pt 500/> 10M
Pt 1000/> 10M
Ni 100/> 10M
Ni 1000/> 10M
Maximum input voltage for voltage input
(destruction limit)
35 V continuous;
75 V for max. 1 s
(duty factor 1:20)
Connection of the sensor
For resistance measurement with 2-conductor
connection
Supported
With 4-conductor connection
Supported
Characteristic linearization Programmable
For RTD resistance temperature detection Pt100...1000,
0.00385 Alpha to
DIN IEC 751
Ni 100...1000,
0.00618 Alpha to
DIN 43760
1
Measuring range
PT100, PT200
-200° C to +850° C
PT 500
-200° C to +800° C
PT 1000
-200° C to +240° C
Ni 100
-60° C to +250° C
Ni 1000
-60° C to +130° C
User data in engineering format Degrees Celsius
Degrees Fahrenheit
1
7KF10 does not support all measuring ranges specified for S7.
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