Emerson Rosemount 700XA Reference Manual page 79

Reference Manual
2-3-9000-744
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 backplane. All contact outputs have a rating of 1A at 30 Vdc.
Figure 4-21: TB3 on the backplane
Table 4-4
Table 4-4: Discrete digital outputs on TB3
TB3
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Rosemount 700XA
lists the discrete digital output function for each pin on the TB3 connector.
Function
Normally closed (NC1)
DIG_OUT NC1
ARM1
DIG_OUT ARM1
Normally open (NO1)
DIG_OUT NO1
NC2
DIG_OUT NC2
ARM 2
DIG_OUT ARM2
NO2
DIG_OUT NO2
NC3
DIG_OUT NC3
ARM3
DIG_OUT ARM3
Installation and start-up
June 2022
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