Siemens ET 200M, Manual, Page: 161 / 284

16-Channel, 24 VDC Discrete Input MTA
Marshalled Termination Assemblies for ET200M Remote I/O Modules
A5E00482820-12 161
12.9 Typical Transmitter Connection to Field Terminals
Figure 12–2 16 Channel DI MTA Field Terminal Connection to Transmitter
CH15-
S12
16 CHANNEL DI MTA
-
CH14-
+
TB1
1
2
3
8
4
5
6
7
9
10
11
12
CH14+
CH2-
+
S15
S14
S0
CH13-
INPUT
SWITCH
S2
CH0-
CH13+
S13
S3
CH0+
-
CH3-
CH2+
TB4
1
2
3
8
4
5
6
7
9
10
11
12
CH3+
CH1-
S1
CH12-
CH12+
2 WIRE TRANSMITTER
R2
R
CH1+
2 WIRE TRANSMITTER
W/WIRE BREAK RESISTOR
CH15+
INPUT
SWITCH
Note
The Wire Break resistor value for redundant DI modules should be between 10
K Ω and 12 K Ω .
The Wire Break resistor value for a non-redundant DI module can be found in the
S7-300 Programmable Controller Module Specifications (document number
A5E00105505).