SIS function blocks > SIS Timer/Counter Blocks > Logic Solver Retentive Timer function block

Logic Solver Retentive Timer function block parameters

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

Table: LSRET Function Block System Parameters

Parameter

(Data Type)

Default Value (Units)

Characteristics

Description

ELAPSED_TIMER

(Floating point)

0

(Seconds)

Access:

Tuning

NVM:

Preserved on Download

The elapsed time IN_D has been True (1).

IN_D

(Discrete with status)

0

Access:

Tuning

NVM:

Restored on Restart

The discrete input value and status.

OUT_D

(Discrete with status)

0

NVM:

Preserved on Download

The discrete output value and status.

RESET_IN

(Discrete with status)

0

Access:

Tuning (SLS 1508 and CSLS major revision 1)

Operating (CSLS major revision 2 or higher)

NVM:

Preserved on Download

The reset discrete input value and status.

TIME_DURATION

(Floating point)

2

(Seconds)

Access:

Configurable, Tuning

NVM:

Restored on Restart

Specifies the time IN_D must stay 1 before OUT_D becomes 1. This value must be greater than the scan rate of the parent module. Enter a value between 0 and 1.0737e+008.