Siemens SIMATIC NET SPC 4-2 LF Manual page 177

Profibus controller
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The following picture shows one possible way of attaching the SPC 4-2 to the ASIC
SIM 1.
To
sensor
SPC 4
or
actuator
M
Figure 16-4
Application Example
SIM 1 in the constant current mode with SPC 4-2 without electrical isolation
PROFIBUS Controller SPC 4®-2 LF
C79000-G8976-C157-3
TxS
TxE
SIM 1
Reset
RxS
3.3 V
5 V
Appendix
Transistor
Diode
bridge
Resistor
M
177

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