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1. Ordering data
SB61:
6DD 1681- 0EB3
2. Function description
8 binary DC voltage signals are adapted, floating, to the SIMADYN D signal level using the SB61
interface board.
Using the same interface board, system-side signal voltages of 48V and/or 24V can be processed.
The system side of the board has 8 input channels which are electrically isolated (between one
another). Using short-circuit plugs, the connections of each channel can be connected-up to provide 2
versions:
a) Version 1, inputs with electrical isolation between each other
When supplied, the board corresponds to version 2, i.e., terminal pair X11 to X18 is each equipped
with two short-circuit plugs. Each channel can be modified to correspond to either version 1 or version
2, but all of the channels for version 2 are not floating with respect to one another. The terminal block
on the process side X2 has 24 screw terminals:
Terminals 1 to 8 for 24V, terminals 11 to 18 for 48V, terminals 51 to 58 as reference point.
Siemens AG Dk-Nr. 283641
SIMADYN D Hardware User Manual
Plant side
P24V/48V
M24V/48V
Plant side
P24V/48V
M24V/48V
b) Version 2, inputs with common reference potential
X2
1/11
51
3
2
X11
X2
1/11
51
3
2
X11
4
1
2P
2M
X4
Edition 05.95
Ordering data
SIMADYN D side
Electrical
isolation
SB61
SIMADYN D side
Electrical
isolation
SB61
3
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