Block Diagram Of The 2 Ai Hs I High-Speed Analog Electronic Module (4–20Ma 2-Wire Measuring Transducer) - Siemens Metro 21 M216KA Operator's Manual

Block Diagram
Galvanic
isolation
SC bus
Figure 12-17 Block Diagram of the 2 AI HS I High-Speed Analog Electronic Module (4–20mA, 2-Wire Measuring
Transducer)
ET 200L, ET 200L-SC and ET 200L-SC IM-SC Distributed I/O Device
EWA 4NEB 780 6009-02c
SC Analog Electronic Modules – T echnical Data
Figure 12-17 shows the block diagram of the 2 AI HS I high-speed analog
electronic module (4–20mA, 2-wire measuring transducer).
ADC
Logic
and
interface
circuit
Current
limitation
Internal
supply
1 M 0 +
T
R
3 M 0 –
2 M 1 +
T
R
4 M 1 –
L+
M
12-33