Field Value - This field indicates the integer value (FV_D) that corresponds to the discrete input pattern being read from the field inputs. The values 0, 1, and 2 correspond to defined states (PASSIVE, ACTIVE 1, and ACTIVE 2, respectively) for the field device, with 255 indicating an undefined state.
Output Value - This field indicates the integer output state value (OUT_D). The discrete output pattern is generated from the output state value. The output value might be 0, 1, or 2, corresponding to the device's PASSIVE, ACTIVE 1, and ACTIVE 2 states, respectively.
Inputs - These areas indicate the raw discrete inputs for the Device control block, displayed in yellow. The background color changes from gray to orange or red when the PV status becomes uncertain or bad, respectively.
1 - Discrete input 1
2 - Discrete input 2
3 - Discrete input 3
4 - Discrete input 4
Outputs - These areas indicate the driven discrete outputs for the Device Control block, displayed in cyan. The background color changes from gray to orange or red when the PV status becomes uncertain or bad, respectively.
1 - Discrete output 1
2 - Discrete output 2
3 - Discrete output 3
4 - Discrete output 4