Siemens ET 200S Manual page 451

Table 12-83 Terminal Assignment of the 2AI I 2/4WIRE High Feature
View
TM-E15S24-01 and 2AI I 2/4WIRE High Feature
CH0
M
0+
1 5
M
0–
2 6
24 VDC+
3 7
24 VDC–
4 8
TM-E15S26-A1 and 2AI I 2/4WIRE High Feature
CH0
M
0+
1 5
M
0–
2 6
24 VDC+
3 7
24 VDC–
4 8
A A
AUX1
4 8
A A
AUX1
3 7
Distributed I/O System ET 200S
EWA 4NEB 780 6024-02 07
Terminal Assignment
(Alternative terminal assignment for 2WIRE)
2 conductors
CH1
Two-wire measuring transducer
M
1+
mA
M
1–
24 VDC+
24 VDC–
4 conductors
CH1
Four-wire measuring transducer
M
1+
mA mA
M
1–
24 VDC+
24 VDC–
AUX1
AUX1
Analog Electronic Modules
Remarks
Channel 0: Terminals 1 to 4
Channel 1: Terminals 5 to 8
M+ : Input signal "–"
M– : Connect to 24 VDC–
24 VDC+: Input signal"+"
Two-wire measuring
transducers are supplied by
means of the measuring
circuits.
Mixing two-wire and four-wire
measuring transducers is
permitted.
To support isolation between
the channels, use an external
supply to feed one of the
measuring transducers.
Channel 0: Terminals 1 to A3
Channel 1: Terminals 5 to A7
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.
12-95