Wiring the discrete digital outputs
The discrete outputs are located on TB3, which is a 15-pin connector, and have five Form-
C relays on the back plane. All contact outputs have a rating of 1A at 30 Vdc.
Table 2-3 lists the discrete digital output function for each pin on the TB3 connector.
Table 2-3: Discrete Digital Outputs - TB3
TB3 Function
Pin 1 NC1
DIG_OUT NC1
Pin 2 ARM1
DIG_OUT ARM1
Pin 3 NO1
DIG_OUT NO1
Pin 4 NC2
DIG_OUT NC2
Pin 5 ARM 2
DIG_OUT ARM2
Pin 6 NO2
DIG_OUT NO2
Pin 7 NC3
DIG_OUT NC3
Pin 8 ARM3
DIG_OUT ARM3
Pin 9 NO3
DIG_OUT NO3
Pin 10 NC4
DIG_OUT NC4
Pin 11 ARM4
DIG_OUT ARM4
Pin 12 NO4
DIG_OUT NO4
Pin 13 NC5
DIG_OUT NC5
Pin 14 ARM5
DIG_OUT ARM5
Pin 15 NO5
DIG_OUT NO5
Installation and start-up Quick Start Guide
July 2020 00825-0100-3770
38 Emerson.com/Rosemount
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