Siemens SIMATIC ET 200AL, System Manual

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Technical specifications
6.1 Technical specifications
Analog input module AI 4xRTD/TC 4xM12 (6ES7144-5KD50-0BA0)
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Equipment Manual, 08/2021, A5E48753535-AB
Article number 6ES7144-5KD50-0BA0
Analog value generation for the inputs
Measurement principle integrating
Integration and conversion time/resolution per
channel
• Resolution with overrange (bit including sign),
max.
16 bit
• Integration time, parameterizable
Yes; channel by channel
• Integration time (ms)
16.7 / 20 / 60
• Basic conversion time, including integration
time (ms)
18 / 21 / 61 ms
– additional conversion time for wire-break
monitoring
4 ms
– additional conversion time for resistance
measurement
2 ms
• Interference voltage suppression for interfer-
ence frequency f1 in Hz
60 / 50 / 16.7
Smoothing of measured values
• parameterizable
Yes
• Step: None
Yes; 1x cycle time
• Step: low
Yes; 4x cycle time
• Step: Medium
Yes; 16x cycle time
• Step: High
Yes; 32x cycle time
Encoder
Connection of signal encoders
• for resistance measurement with two-wire
connection
Yes
• for resistance measurement with three-wire
connection
Yes
• for resistance measurement with four-wire
connection
Yes
Errors/accuracies
Linearity error (relative to input range), (+/-) 0.025 %
Temperature error (relative to input range), (+/-) 0.01 %/K
Crosstalk between the inputs, max. -70 dB
Repeat accuracy in steady state at 25 °C (relative
to input range), (+/-)
0.01 %; 0.02% for Pt1000
Temperature error of internal compensation ±4 °C