
Analog modules
5.20 Analog input module SM 431; AI 8 x 14 Bit (6ES7431-1KF10-0AB0)
S7-400 Automation System Module Data
Reference Manual, Edition 09/2009, A5E00850736-06
263
Resistance thermocouples, 3-conductor standard
measuring range
– Pt 100
– Pt 200
– Pt 500
– Pt 1000
– Ni 100
– Ni 1000
Climatic measuring range
– Pt 100
– Pt 200
– Pt 500
– Pt 1000
– Ni 100
– Ni 1000
± 5.2 K
± 8.2 K
± 6.5 K
± 5.2 K
± 1.3 K
± 1.3 K
± 0.7 K
± 0.7 K
± 0.7 K
± 0.7 K
± 1.3 K
± 1.3 K
Basic error limit (operational error limit at 25° C, relative to input range)
Voltage input
– ± 80 mV
– ± 250 mV
– ± 500 mV
– ± 1 V
– ± 2.5 V
– ± 5 V
– 1 to 5 V
– ± 10 V
± 0,17 %
± 0,15 %
± 0,15 %
± 0,15 %
± 0,15 %
± 0,15 %
± 0,15 %
± 0,15 %
Current input
– 0 to 20 mA
– ± 20 mA
– 4 to 20 mA
± 0,15 %
± 0,15 %
± 0,15 %
Resistance measurement
– 0 to 48 Ω; 4-conductor measurement
– 0 to 150 Ω; 4-conductor measurement
– 0 to 300 Ω; 4-conductor measurement
– 0 to 600 Ω; 4-conductor measurement
– 0 to 5000 Ω; 4-conductor measurement (in the
range of 6000 Ω)
– 0 to 300 Ω; 3-conductor measurement
– 0 to 600 Ω; 3-conductor measurement
– 0 to 5000 Ω; 3-conductor measurement (in the
range of 6000 Ω)
± 0,15 %
± 0,15 %
± 0,15 %
± 0,15 %
± 0,15 %
± 0,3 %
± 0,3 %
± 0,3 %
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