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)