Siemens Simatic ET 200S 2/4AI RTD ST Manual page 11

Input range (rated value)/input resistance
•
•
Permitted input voltage (destruction limit)
Connection of the sensors
•
Characteristic curve linearization
Smoothing of the measured values
with PTC: max. 1.65 mA
1
In accordance with VDE 0660 Part 302/303, Type A, no diagnostics for overrun/underrun
2
2/4AI RTD ST analog electronic module (6ES7134-4JB51-0AB0)
Manual, 07/2008, A5E01076865-02
1.1 2/4AI RTD ST analog electronic module (6ES7134-4JB51-0AB0)
Resistance-type sensor
Resistance thermometer
For measuring resistance
– 2-wire connection
– 3-wire connection
– Four-wire connection
Data for selecting a sensor
150 Ω/min. 2 MΩ
300 Ω/min. 2 MΩ
600 Ω/min. 2 MΩ
PTC min 2 MΩ
Pt100/min. 2 MΩ
Ni100/min. 2 MΩ
Max. 9 V
Yes,
Yes, internal compensation of line resistances
Yes
Yes, parameters can be assigned for Pt100,
Ni100
Yes, can be assigned parameters in 4 steps by
means of digital filtering
Step
None
Weak
Medium
Strong
Properties
Time constant
1 x cycle time
4 x cycle time
32 x cycle time
64 x cycle time
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