Programming the Simple Type

Overview

A Simple type is always managed by an HSCSimple function block.

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

Adding a HSCSimple Function Block

Step	Description
1	Select the Libraries tab in the Software Catalog and click Libraries. Select Controller > M258 > M258 Expert IO > HSC > HSCSimple_M258 in the list, drag-and-drop the item onto the POU window.
2	Type the Simple 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: Global Variables > <MyController> > PLC Logic > IoConfig_Globals.

Step

Description

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

Select Controller > M258 > M258 Expert IO > HSC > HSCSimple_M258 in the list, drag-and-drop the item onto the POU window.

Type the Simple 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: Global Variables > <MyController> > PLC Logic > IoConfig_Globals.

I/O Variables Usage

The tables below describe how the different pins of the function block are used in Modulo-loop mode.

This table describes the input variables:

Input	Type	Comment
Enable	BOOL	TRUE = activates counter and takes into account pulses on the counter input.
Sync	BOOL	On rising edge, presets and starts the counter.
ACK_Modulo	BOOL	On rising edge, resets Modulo_Flag.

This table describes the output variables:

Output	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 the output values on the function block are valid.
Run	BOOL	Not relevant
Modulo_Flag	BOOL	Set to TRUE when the counter rolls over the Modulo value.
CurrentValue	DWORD	The value of the counter.