Siemens ET 200S - Page 450

Analog Electronic Modules
12-94
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
12.11 2AI I 2/4WIRE High Feature Analog Electronic Module
(6ES7 134-4MB00-0AB0)
Order Number
6ES7 134-4MB00-0AB0
Features
 2 inputs for measuring current
 Input ranges:
– "20 mA, resolution 15 bits + sign
– 4 to 20 mA, resolution 15 bits
 Isolated from the load voltage L+
 Permitted common-mode voltage between the channels 100 VAC
 Supports two-wire or four-wire measuring transducers
Terminal Assignment
The following table indicates the terminal assignment of the 2AI I 2/4WIRE High
Feature for the different terminal modules:
Table 12-83Terminal Assignment of the 2AI I 2/4WIRE High Feature
View
Terminal Assignment Remarks
M
1–
M
0–
2
3
4
6
7
8
15
M
1+
M
0+
mA
TM-E15S24-01 and 2AI I 2/4WIRE High Feature
24 VDC+24 VDC+
4 conductors
CH0 CH1
mA
24 VDC–24 VDC–
Four-wire measuring transducer
Channel 0: Terminals 1 to 4
Channel 1: Terminals 5 to 8
M+ : Input signal “+”
M–: Input signal “–”
24 VDC+: Power supply for
four-wire measuring transducer
24 VDC–: Return circuit for
measuring transducer supply
It is possible to supply four-wire
measuring transducers by
means of the module.
To support isolation between
the channels, use an external
supply to feed one of the
measuring transducers.