ABB ControlMaster CM10 User Manual page 49

ControlMaster CM10, CM30 and CM50
Universal process controllers,
...Input/Output
Digital I/O
Digital IO 1(to 6)
Type
Off
Output
Volt Free
24 Volt
TTL
Output Source
IM/CM/B–EN Rev. H
1 1 1
/ , / and / DIN
8 4 2
Sets the Digital IO to operate as an output or an input.
No action taken.
The Digital IO operates as an output.
High input detected when the volt-free switch across the input is closed.
Digital input low < 5V, high > 11V (maximum input 30 V).
Digital input low < 0.8V, high > 2V.
Selects the digital signal to be assigned to the output – see Appendix A, page 80 for
description of sources.
7 Advanced Level
47