Programming the Main Type

Overview

The Main type is always managed by an HSCMain_TM3 function block.

NOTE: At build time, an error is detected if the HSCMain_TM3 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 Intern > IODrivers > TM3 HSC > HSC > HSCMain_TM3 in the list.
2	Drag-and-drop the item onto the POU window.
3	Edit the default Main type instance name to match the Instance name of the counter function block defined in the Configuration window.

Step

Description

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

Select Intern > IODrivers > TM3 HSC > HSC > HSCMain_TM3 in the list.

Drag-and-drop the item onto the POU window.

Edit the default Main type instance name to match the Instance name of the counter function block defined in the Configuration window.

I/O Variables Usage

These tables describe how the different pins of the function block are used in the mode Event.

This table describes the input variables:

Input	Type	Description
HSC_REF_TM3	HSC_REF_TM3	Reference to the HSC instance.
EN_Enable	BOOL	Not used.
EN_Preset	BOOL	When SYNC input is configured: if TRUE, authorizes the counter Preset via the Sync input.
EN_Cap	BOOL	Not used.
EN_Compare	BOOL	Not used.
EN_Out	BYTE	Not used.
F_Enable	BOOL	TRUE = activates counter and takes into account pulses on the counter input.
F_Preset	BOOL	On rising edge, restarts the internal timer relative to the time base.
F_Out	BYTE	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
Run	BOOL	TRUE = counter is activated.
Valid	BOOL	TRUE = CurrentValue is valid.
Error	BOOL	TRUE = indicates that an error was detected.
ErrorId	HSC_ERROR_TM3	Indicates the value of the error detected. See the HSC_ERROR_TM3 enumeration.
Thresholds	BYTE	Not used.
Modulo_Flag	BOOL	Not used.
Preset_Flag	BOOL	Set to 1 by the preset of the counter.
Cap_Flag	BOOL	Not used.
Reflex	BYTE	Not used.
Out	BYTE	Not used.
CapturedValue	DINT	Not used.
CurrentValue	DINT	The value of the counter.