Programming the Main Type

Overview

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

NOTE: At build time, an error is detected 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 > LMC058 > LMC058 Expert IO > HSC > HSCMain_LMC058 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> > PLC Logic > IoConfig_Globals.

Step

Description

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

Select Controller > LMC058 > LMC058 Expert IO > HSC > HSCMain_LMC058 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> > PLC Logic > IoConfig_Globals.

I/O Variables Usage

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

This table describes the input variables:

Input	Type	Description
EN_Enable	BOOL	When EN input is configured: if TRUE, authorizes the counter enable via the Enable input.
EN_Preset	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 comparison operation (using Thresholds 0, 1, 2, 3): obasic comparison (TH0, TH1, TH2, TH3 output bits) oreflex (Reflex0, Reflex1 output bits) oevents (to trigger external tasks on threshold crossing)
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_Preset	BOOL	Forces the Preset condition. Takes priority over EN_Preset input.
F_Out0	BOOL	TRUE = forces Output0 to 1 (if Reflex0 is configured in HSC Embedded Functions). Takes priority over EN_Out0.
F_Out1	BOOL	TRUE = forces Output1 to 1 (if Reflex1 is configured in HSC Embedded Functions). Takes priority over EN_Out1.
ACK_Modulo	BOOL	On rising edge, resets Modulo_Flag.
ACK_Preset	BOOL	On rising edge, resets Preset_Flag.
ACK_Cap	BOOL	On rising edge, resets Cap_Flag.
SuspendCompare	BOOL	TRUE = compare results are suspended: oTH0, TH1, TH2, TH3 , 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:

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	Not used.
TH0	BOOL	Set to 1 when CurrentValue > Threshold 0.
TH1	BOOL	Set to 1 when CurrentValue > Threshold 1.
TH2	BOOL	Set to 1 when CurrentValue > Threshold 2.
TH3	BOOL	Set to 1 when CurrentValue > Threshold 3.
Modulo_Flag	BOOL	Set to 1 when the counter rolls over its limits.
Preset_Flag	BOOL	Set to 1 by the preset 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 outputs Output0 (if Reflex0 is configured in HSC Embedded Function, otherwise FALSE if not configured).
Out1	BOOL	State of physical outputs Output1 (if Reflex1 is configured in HSC Embedded Function, otherwise FALSE if not configured).
CurrentValue	DINT	The value of the counter.