Programming the Main Type

Overview

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

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

Adding the HSCMain Function Block

Step	Description
1	Select the Libraries tab in the Software Catalog and click Libraries. Select Controller > M218 > M218 HSC > Counter > HSCMain 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: Global Variables > <MyController> > Embedded Functions > HSC.

Step

Description

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

Select Controller > M218 > M218 HSC > Counter > HSCMain in the list, drag-and-drop the item onto the POU window.

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: Global Variables > <MyController> > Embedded Functions > HSC.

I/O Variables Usage

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

This table describes the input variables:

Input	Type	Description
EN_Enable	BOOL	When EN input is configured: if TRUE, authorizes enabling of the counter with the Enable input.
EN_Sync	BOOL	When SYNC input is configured: if TRUE, authorizes the counter synchronization and start via the Sync input.
EN_Cap	BOOL	When CAP input is configured: if TRUE, enables the Capture input.
EN_Compare	BOOL	TRUE = enables the comparator operation (using Thresholds 0, 1): obasic comparison (TH0, TH1 output bits) oreflex (Reflex0, Reflex1 output bits) oevents (to trigger external tasks on threshold crossing) NOTE: This option is only available for TM3XF• expansion modules, which support external events.
EN_Out0	BOOL	TRUE = enables physical output Output0 to echo the Reflex0 value (if configured).
EN_Out1	BOOL	TRUE = enables physical output Output1 to echo the Reflex1 value (if configured).
F_Enable	BOOL	Forces the Enable condition. Takes priority over EN_Enable input.
F_Sync	BOOL	Forces the Sync condition.
F_Out0	BOOL	TRUE = forces Output0 to 1 (if Reflex0 is configured in HSC Embedded Function. Takes priority over EN_Out0.
F_Out1	BOOL	TRUE = forces Output1 to 1 (if Reflex1 is configured in HSC Embedded Function. Takes priority over EN_Out1.
ACK_Modulo	BOOL	On rising edge, resets modulo-flag.
ACK_Sync	BOOL	On rising edge, resets Sync_Flag.
ACK_Cap	BOOL	On rising edge, resets Cap_Flag.
SuspendCompare	BOOL	TRUE = compare results are suspended: oTH0, TH1, Reflex0, Reflex1, Out0, Out1 output bits of the block maintain their last value. oPhysical Outputs Output0 and Output1 maintain their last value. oEvents are masked. NOTE: EN_Compare, EN_Out0,EN_Out1,F_Out0, F_Out1 remain operational while SuspendCompare is set.

This table describes the output variables:

Output	Type	Comment
HSC_REF	HSC_REF	Reference to the HSC. To be used with the HSC_REF_IN input pin of the Administrative function blocks.
Validity	BOOL	TRUE = indicates that output values on the function block are valid.
Error	BOOL	TRUE = indicates that an error was detected. Use the HSCGetDiag function block to get more information about this detected error.
CurrentValue	DINT	Current value of the counter.
Run	BOOL	TRUE = counter is running. Switches to 0 when CurrentValue reaches 0. A rising edge on Sync is needed to restart the counter.
TH0	BOOL	Set to 1 when CurrentValue > Threshold 0.
TH1	BOOL	Set to 1 when CurrentValue > Threshold 1.
Modulo_Flag	BOOL	Set to TRUE when counter reaches 0.
Sync_Flag	BOOL	Set to 1 by the synchronization of the counter.
Cap_Flag	BOOL	Set to 1 when a new capture value is stored in the Capture register. This flag must be reset before a new capture can occur.
Reflex0	BOOL	State of Reflex0.
Reflex1	BOOL	State of Reflex1.
Out0	BOOL	State of physical output Output0 to 1 (if Reflex0 is configured in HSC Embedded Function, otherwise FALSE if not configured).
Out1	BOOL	State of physical output Output1 to 1 (if Reflex1 is configured in HSC Embedded Function, otherwise FALSE if not configured).