Omicron CMC 356 - Page 30

CMC 356 Reference Manual
30
Figure 5-2:
Simplified circuit diagrams
of binary inputs and
outputs (
CMC 356
standard, without option
ELT-1 installed)
BINARY OUTPUT
Software controlled
BINARY/ANALOG INPUT
3 - 10 identical
Circuit diagram of a binary input for
potential-free operation (dry)
132 kΩ
V
th
< 20 V: 78 kΩ
V
th
> 20 V: 3.2 kΩ
V
th
132 kΩ
V
th
350 kΩ
110 kΩ
11 V
Circuit diagram of a binary input with
programmable threshold voltage
(wet operation)
Each binary input can be configured individually
for wet or dry operation.
Two inputs (1 + 2, 3 + 4, ...) are one potential
group. The inputs grouped in one potential group
share a common ground.
AUX DC
Note: For simplified circuit diagrams of the inputs BINARY/ANALOG INPUTS and
ANALOG DC INPUT of the CMC 356 with hardware option ELT-1 installed, please
refer to Figure 6-19 on page 76.