Discrete Output Block - Honeywell Series A User Manual

Fieldbus interface module

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Function Notes

Discrete Output block

Experion PKS Series A Fieldbus Interface Module User's Guide

provides it as an output for other fieldbus function blocks. A

functional schematic of the block is shown in the previous

illustration for reference.

Supports Out of Service (OOS), Manual (Man), and

Automatic (Auto) modes.

The FIELD_VAL_D represents the true ON/OFF state

of the value from the Transducer, using XD_STATE.

Use the IO_OPTS Invert selection to do a Boolean

NOT function between the field value and the output.

Use the PV_FTIME to set the time that the input must

be in one state before it gets passed to the PV_D.

The PV_D is always the value that the block places in

OUT_D, when the mode is Automatic.

In Manual mode, if allowed, an operator can write a

value to OUT_D.

The SIMULATE_D parameter is for testing purposes

only and always initializes in the disabled state.

BLOCK_ERR.DISABLED

Standard Function Block Parameters

B for definitions of each parameter.

10. Appendix A

10.2. Standard Function Blocks

Experion pks series a