Programming

Overview

The Main type is always managed by an HSCMain_M241 function block.

NOTE: At build time, an error is detected if the HSCMain_M241 function block is used to manage a different HSC type.

Step	Description
1	Select the Libraries tab in the Software Catalog and click Libraries. Select Controller > M241 > M241 HSC > HSC > HSCMain_M241 in the list, drag-and-drop the item onto the POU window.
2	Type the Main type instance name (defined in configuration) or select the function block instance by clicking: Using the input assistant, the HSC instance can be selected at the following path: <MyController> > Counters.

Step

Description

1

Select the Libraries tab in the Software Catalog and click Libraries.

Select Controller > M241 > M241 HSC > HSC > HSCMain_M241 in the list, drag-and-drop the item onto the POU window.

2

Type the Main type instance name (defined in configuration) or select the function block instance by clicking:

Using the input assistant, the HSC instance can be selected at the following path: <MyController> > Counters.

The tables below describe how the different pins of the function block are used in Frequency meter type.

This table describes the input variables:

Input	Type	Description
`EN_Enable`	`BOOL`	If `TRUE` and the EN input is configured, authorizes the counter to be enabled using the Enable input.
`EN_Preset`	`BOOL`	Not used.
`EN_Cap`	`BOOL`	Not used.
`EN_Compare`	`BOOL`	Not used.
`EN_Out0`	`BOOL`	Not used.
`EN_Out1`	`BOOL`	Not used.
`F_Enable`	`BOOL`	`TRUE` = authorizes changes to the current counter value.
`F_Preset`	`BOOL`	On rising edge, restarts the internal timer relative to the time base.
`F_Out0`	`BOOL`	Not used.
`F_Out1`	`BOOL`	Not used.
`ACK_Modulo`	`BOOL`	Not used.
`ACK_Preset`	`BOOL`	On rising edge, resets `Preset_Flag`.
`ACK_Cap`	`BOOL`	Not used.
`SuspendCompare`	`BOOL`	Not used

This table describes the output variables:

Outputs	Type	Comment
`HSC_REF`	`EXPERT_REF`	Reference to the HSC. To be used with the `EXPERT_REF_IN` input pin of the Administrative function blocks.
`HSC_Err`	`BOOL`	`TRUE` = indicates that an error was detected. Use the `EXPERTGetDiag` function block to get more information about this detected error.
`Validity`	`BOOL`	`TRUE` = indicates that output values on the function block are valid.
`Run`	`BOOL`	Counter is running
`TH0`	`BOOL`	Not used.
`TH1`	`BOOL`	Not used.
`TH2`	`BOOL`	Not used.
`TH3`	`BOOL`	Not used.
`Modulo_Flag`	`BOOL`	Not used.
`Preset_Flag`	`BOOL`	Set to 1 by the preset of the counter
`Cap_Flag`	`BOOL`	Not used.
`Reflex0`	`BOOL`	Not used.
`Reflex1`	`BOOL`	Not used.
`Out0`	`BOOL`	Not used.
`Out1`	`BOOL`	Not used.
`CurrentValue`	`DINT`	Current value of the counter.