ControlMaster CM30, CM50 and CMF310
Universal process controllers,
1
/4,
1
/2 DIN and fieldmount 7 Advanced Level
IM/CM/ED–EN Rev. X 45
…Input/Output
Digital I/O
Digital IO 1 (6)
Typ e Sets the Digital IO to operate as an output or an input.
Off
No action taken.
Output
The Digital IO operates as an output.
Volt Free
High input detected when volt free switch across input is closed.
24 Volt
Digital input low <5V, high> 11 V (maximum input 30 V).
TTL
Digital input low <0.8V, high> 2 V.
Output Source Selects the digital signal to be assigned to the output – see Appendix A.1, page 104
for description of sources.
Polarity Sets the polarity of the output signal.
Positive
For an output, if the source is active the output is high.
For an input, if a high signal is detected the input is active.
Negative
For an output, if source is inactive the output is high.
For an input, if a low signal is detected the input is active.
Relays
Relay 1 (4 – CM30/50)
Relay 1 (6 – CMF310)
Source Selects the digital signal to be assigned to the relay – see Appendix A.1, page 104
for description of sources.
Polarity Sets the polarity of the relay.
Positive
If the source is active the relay is energized.
Negative
If the source is inactive the relay is energized.
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