HSCSimple_TM3: Control a Simple Type Counter for TM3

Function Block Description

This function block controls a Simple type counter with the following reduced functions:

one-channel counting
no threshold
no capture
no reflex

The HSCSimple function block is mandatory when using a Simple counter type.

The function block instance name must match the name defined by configuration. Hardware related information managed by this function block is synchronized with the MAST task cycle.

WARNING
	UNINTENDED OUTPUT VALUES Only use the Function Block instance in the MAST task. Do not use the same Function Block instance in a different task. Failure to follow these instructions can result in death, serious injury, or equipment damage.

NOTE: Forcing the logical output values of the FB is allowed by EcoStruxure Machine Expert but it will have no impact on hardware related outputs if the function is active (executing).

Graphical Representation

IL and ST Representation

To see the general representation in IL or ST language, refer to Function and Function Block Representation.

I/O Variables Description

This table describes the input variables:

Inputs	Type	Comment
`HSC_REF_TM3`	`HSC_REF_TM3`	Reference to the HSC instance.
`Enable`	`BOOL`	`TRUE` = activates counter and takes into account pulses on the counter input.
`Sync`	`BOOL`	One shot counter: On rising edge, loads the preset of the counter. Modulo loop counter: On rising edge, resets and initializes the counter.
`ACK_Modulo`	`BOOL`	One shot counter: Not used. Modulo loop mode: On rising edge, resets the modulo flag `Modulo_Flag`.

This table describes the output variables:

Outputs	Type	Comment
`Validity`	`BOOL`	`TRUE` = indicates that the output values on the function block are valid.
`Run`	`BOOL`	`TRUE` = counter is activated. In One-shot mode, switches to 0 when `CurrentValue` reaches 0. A rising edge on `Sync` is needed to restart the counter. In Modulo loop mode, `TRUE`, indicates that the counter is activated.
`Valid`	`BOOL`	`TRUE` = indicates that output values on the function block are valid.
`Error`	`BOOL`	`TRUE` = indicates that an error was detected.
`ErrorId`	`HSC_ERROR_TM3`	Indicates the value of the error detected. See `HSC_ERROR_TM3` enumeration.
`Modulo_Flag`	`BOOL`	One shot counter: Not relevant. Module loop mode: Set to `TRUE` when the counter rolls over the modulo value.
`CurrentValue`	`DWORD`	The value of the counter.