I/O Blocks > H1 Carrier Multiple Discrete Input (FFMDI) function block

H1 Carrier Multiple Discrete Input function block parameters

The following table lists the system parameters for the H1 Carrier Multiple Discrete Input function block.

Table: H1 Carrier Multiple Discrete Input 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 H1 Carrier Multiple Discrete Input 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.

FIELD_VAL_D

None

The 8-bit integer value and status of the discrete input from the H1 carrier.

IO_OPTS

None

I/O options allow you to select options for I/O value processing. The only supported I/O option is:

  • Invert.

MODE

None

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

OUT_INT

None

The 8-bit integer output value and status.

PV_D

None

The 8-bit integer process variable used in block execution.

PV_FTIME

Seconds

The time that each bit of FIELD_VAL_D must be on or off before the corresponding bit of PV_D changes.

SIMULATE_D

None

Enables simulation and allows you to enter a discrete value and status.

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.

STATUS_OPTS

None

Status options allow you to select options for status handling and processing. The available status options for this block are:

  • Uncertain if Man mode

  • Propagate Fault Forward

STRATEGY

None

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

SUBSTITUTE_IN_D

None

The substituted (from a field device) discrete input value and status. This parameter is used to provide user-entered value and status to OUT_INT when either the device placeholder is not commissioned or the device is not communicating with the H1 card.

XD_STATE

None

Index to the text describing the states of a discrete for the value obtained from the transducer.

Note

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