Analog electronic modules
4.15 2AI RTD Standard analog electronic module (6ES7134-4JB50-0AB0)
ET 200S
Manual, Edition 10/2005, A5E00514527-01
4-73
4.15 4.15 2AI RTD Standard analog electronic module (6ES7134-4JB50-0AB0)
Properties
• 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
General terminal assignment
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 I
C
+ and I
C
-.
The voltage measured at the resistance thermometer/resistor is measured at the
connections M+
and M-. This ensures highly accurate measurement results with the
four-wire connection.
With the two/three-wire connection, you must apply corresponding jumpers to the module
between M+ and I
c
+ or M- and I
c
- . However, you have to expect a loss of accuracy in the
measurement results.
Terminal assignment for 2AI RTD Standard (6ES7134-4JB50-0AB0)
Terminal Assignment Terminal Assignment Notes
1 M
0+
5 M
1+
2 M
0-
6 M
1-
3 I
C0+
7 I
C1+
4 I
C0-
8 I
C1-
A4 AUX1 A8 AUX1
A3 AUX1 A7 AUX1
• M
n+
: Measuring line positive, channel n
• M
n+
: Measuring line negative, channel n
• I
Cn+
: Constant current line positive, channel n
• I
Cn+
: Measuring line negative, channel n
• AUX1: Protective-conductor terminal or potential bus (freely usable
up to 230 VAC)
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