Wiring The Terminal Base Units (1794-Tb3G Shown) - Spectrum Controls 1794sc-IRT8I User Manual

2-4 Flex™ IO Isolated RTD/Thermocouple Module
Daisy-chaining
24 VDC
Individual
24 VDC
24 VDC
24 VDC
User's Manual Pub. 0300242‐01 Rev. A

2.3.1 Wiring the Terminal Base Units (1794-TB3G shown)

Do not daisy chain power or ground from the terminal base unit to any
!
ac or dc digital module terminal base unit.
Attention
Power
Note: All modules must be frequency or IRT8I modules for this
configuration.
Wiring when total current draw is less than 10A
Power
Note: Use this configuration if using any "noisy" dc digital I/O modules in
your system.
IRT8I module wiring separate from digital wiring
IF8u
Module
Digital Input
Module
IF8u Frequency Input
Module Module
IF8u Digital Input
Module Module