I/O Blocks > Multiplexed Analog Output (FFMAO) function block

Fieldbus Multiplexed Analog Output function block parameters

The following table lists the system parameters for the Fieldbus Multiplexed Analog Output function block.

Table: Fieldbus Multiplexed Analog Output function block system parameters

Parameter

Units

Description

ABNORM_ACTIVE

None

The indication that a block error condition not selected in BAD_MASK is True (Active).

ALERT_KEY

None

A user-assigned identification number reported in alarm messages from the block that allows HMI applications to sort and filter alarms and events. Set this parameter for each function block to indicate the physical unit the function block is associated with. This information can be used in the host for sorting alarms, and so on.

BAD_ACTIVE

None

The indication that a block error condition selected in BAD_MASK is True (Active).

BAD_MASK

None

The set of active error conditions that triggers a user-defined Bad condition. The user selects a subset of block error (BLOCK_ERR) conditions in the BAD_MASK parameter. When any of these conditions are True, the BAD_ACTIVE parameter becomes True. When any of the BLOCK_ERR conditions that are not included in BAD_MASK are True, ABNORM_ACTIVE becomes True.

BLOCK_ERR

None

The summary of active error conditions associated with the block. The possible block errors for the Fieldbus Multiplexed Analog Output function block are:

  • Out of Service

  • Input Failure/Bad PV

  • Simulate Active

  • Other Error

CHANNEL

None

The number of the logical hardware channel that is connected to the I/O block. It defines the transducer to be used going to or from the physical world.

FSTATE_STATUS

None

Indicates if inputs are in fault state.

FSTATE_TIME

Seconds

The time in seconds from detection of fault of the output block remote setpoint to the output action of the block output if the condition still exists.

FSTATE_VALn

where n=1 through 8

 EU of PV

The value to use when a fault occurs.

IN_n

where n=1 through 8

None

The input value and status.

MO_OPTS

None

Indicates whether FSTATE_VALn is used in the event of a fault or restart.

MODE

None

The mode record of the block. Contains the actual, target, permitted, and normal modes.

ST_REV

None

The revision level of the static data associated with the function block. To support tracking changes in static parameter fields, the associated block's static revision parameter is incremented each time a static parameter field value is changed. Also, the associated block's static revision parameter is incremented if a static parameter field is written, but the value is not changed.

STRATEGY

None

Used to identify groupings of blocks. This data is not checked or processed by the block.

Note

Default values and data type information for the parameters are available by expanding the Parameter View window.