SIS function blocks > SIS Advanced Function Blocks > Logic Solver Monitor function block

Logic Solver Monitor function block parameters

The following table lists the system parameters for the function block:

Table: LSMON Function Block System Parameters

Parameter

(Data Type)

Default Value

(Units)

Characteristics

Description

ACTIVE_INPUTSn

(32-bit UInt)

0

NVM:

Preserved on Download

The active inputs for each output based on the masked inputs and the configured mask.

DESC_INn

(String)

Null

None

User-defined label for the associated IN_Dn parameter.

DESC_OUTn

None

None

User defined label (description) for OUT_Dn.

EXT_INPUTS

(32-bit UInt w/Status)

0

Access:

Tuning

32 bit unsigned integer that can be used in place of IN_Dx. This is used when LSMON blocks are cascaded and is normally from the RAW_INPUTS or MASKED_INPUTS of another LSMON block.

FIRSTOUT_ACT

(Boolean)

False

NVM:

Preserved on Download

Indicates that the FIRSTOUT_VAL is non-zero.

FIRSTOUT_INH

(Boolean)

False

Access:

Tuning

NVM:

Preserved on Download

First out inhibit. When TRUE, this parameter prevents changes to FIRSTOUT_VAL.

FIRSTOUT_OPT

(Named set)

Clear on Normal

Access:

Configurable

Determines how the block clears the first out value. The options are:
  • Clear on Normal
  • Clear on Reset If Normal
  • Clear on Reset

FIRSTOUT_RESET

(Boolean)

False

Access:

Operating

Clears the FIRSTOUT_VAL.

FIRSTOUT_VAL

(32-bit UInt)

0

NVM:

Preserved on Download

Contains the values of the inputs that caused the trip.

IN_Dn

(Boolean with status)

False

Access:

Tuning

NVM:

Restored on Restart

A monitored value. IN_Dn is extensible to as many as 32.

INPUT_MASK

(32-bit UInt)

0

Access:

Tuning

NVM:

Preserved on Download

Disables one or more inputs. Any bit set in the INPUT_MASK causes the corresponding input value to be treated as Normal.

LOGIC_TYPE

(Named Set)

0

Access:

Configurable

Determines whether the tripped state is TRUE (1 or Positive) or FALSE (0 or Negative).

MASKED_INPUTS

(32-bit UInt)

0

NVM:

Preserved on Download

Represents the values of the inputs either from the EXT_INPUTS or IN_Dx parameters after the INPUT_MASK has been applied . Any unused bits default to their Normal value.

MATRIX

(32-bit UInt)

0 (all fields)

Access:

Configurable

Defines the relationship of inputs to outputs. The software represents the matrix as a grid of checkboxes.

OUT_Dn

(Boolean)

False

Access:

Configurable

NVM:

Preserved on Download

Output value for each configured MASK. OUT_Dn is extensible to as many as eight.

RAW_INPUTS

(32-bit UInt)

0

NVM:

Preserved on Download

Represents the values of the inputs either from the EXT_INPUTS or IN_Dn parameters. Any unused bits default to Normal.

REPORT_OPTS

(16-bit UIntOption Bitstring)

Input events not generated

Access:

Configurable, Tuning

Configurable options:
  • Input Event records are not generated
  • Output Event records are not generated