Distributed I/O System ET 200S

Analog electronics modules
4.15 2AI RTD Standard analog electronic module (6ES7134-4JB50-0AB0)
4.15 4.15
Properties
Maximum input current for current input 60 mA
(destruction limit)
Smoothing of the measured values Yes, can be assigned parameters in 4 steps by means
of digital filtering
Step
Time constant
None
1 x cycle time
Weak
64 x cycle time
Medium
128 x cycle time
Strong
512 x cycle time
1 Without encoder supply voltage
2 DPV1 only
3 Parameter assignment error
Violation of lower limit value
Violation of upper limit value
Open circuit (only with 4 mA to 20 mA)
Process interrupt lost
2AI RTD Standard analog electronic module (6ES7134-4JB50-0AB0)
General terminal assignment
• 2 inputs for resistance thermometers or resistance measurement
• Input ranges:
– Resistance thermometers: Pt100, Ni100; resolution 15 bits + sign
– Resistance measurement: 150 Ω; 300 Ω ; 600 Ω, resolution max. 15 bits + sign
• Isolated from the load voltage L+
• Linearization of the sensor characteristic curves
Note
Terminals 4, 8, A4, A8, A3 and A7 are only available at specified terminal modules.
The resistance thermometers/resistors are measured in a four-wire connection. Constant
current is fed to the resistance thermometers/resistors by means of connections IC+ and IC-.
The voltage measured at the resistance thermometer/resistor is measured at the
connections M+ and M-. This ensures highly accurate measurement results with the fourwire
connection.
With the two/three-wire connection, you must apply corresponding jumpers to the module
between M+ and Ic+ or M- and Ic- . However, you have to expect a loss of accuracy in the
measurement results.
ET 200S
4-74 Manual, 12/2005, A5E00514527-03