Choosing Your Counter

Overview

Start the HSC configuration by choosing a counter type according to the type of sensor you are using and the application need.

In the Counters editor, select a Counting function from the list that offers the following types of counters (for more information, refer to the Counter Function):

HSC Simple
HSC Main Single Phase
HSC Main Dual Phase
Frequency Meter
Period Meter

The Frequency Meter type and the Period Meter type are both based on an HSC Main type.

For each counter defined in the Counters editor, a default Instance name is assigned by EcoStruxure Machine Expert. This default Instance name is editable. You must use exactly the same instance name as an input to the function blocks dealing with the counter.

Type and Mode Matrix

This table presents the different types and modes available:

Type	HSC Simple	HSC Main Single Phase	HSC Main Dual Phase	Frequency Meter	Period Meter
Mode	HSC Simple	HSC Main Single Phase	HSC Main Dual Phase	Frequency Meter	Period Meter
One-shot	X	X	–	–	–
Modulo-loop	X	X	X	–	–
Event Counting	–	X	–	–	–
Free-large	–	–	X	–	–
Edge to Edge	–	–	–	–	X
Edge to Opposite	–	–	–	–	X

HSC Simple

This table presents an overview of the specifications available in HSC Simple type according to the mode requested:

Feature	Function
Feature	One-shot Mode	Modulo-loop Mode
Counting mode	Count down	Count up
Enable with an HSC physical input	No	No
Synchronization / preset with an HSC physical input	No	No
Comparison function	No	No
Capture function	No	No

HSC Main Single Phase

This table presents an overview of the specifications available in HSC Main Single Phase type according to the mode requested:

Feature	Function
Feature	One-shot Mode	Modulo-loop Mode	Event Counting Mode
Counting mode	Count down	Count up	Pulse counting during given time base (10 ms, 100 ms, or 1000 ms)
Enable with an HSC physical input	Yes	Yes	No
Synchronization / preset with an HSC physical input	Yes	Yes	Yes
Comparison function	Yes, 4 thresholds, 2 outputs, and 4 events	Yes, 4 thresholds, 2 outputs, and 4 events	No
Capture function	Yes, 1 capture register	Yes, 1 capture register	No

HSC Main Dual Phase

This table presents an overview of the specifications available in HSC Main Dual Phase type according to the mode requested:

Feature	Function
Feature	Modulo-Loop Mode	Free-Large Mode
Counting mode	Count up / down Pulse / direction Quadrature	Count up / down Pulse / direction Quadrature
Enable with an HSC physical input	No	No
Synchronization / preset with an HSC physical input	Yes	Yes
Comparison function	Yes, 4 thresholds, 2 outputs, and 4 events	Yes, 4 thresholds, 2 outputs, and 4 events
Capture function	Yes, 1 capture register	Yes, 1 capture register

Frequency Meter

This table presents an overview of the specifications available in Frequency Meter type:

Feature	Function
Counting mode	Pulse frequency in Hz with updated value available every time base value (10 ms, 100 ms, or 1000 ms)
Enable with an HSC physical input	Yes
Synchronization / preset with an HSC physical input	No
Comparison function	No
Capture function	No

Period Meter

This table presents an overview of the specifications available in Period Meter type according to the mode requested:

Feature	Function
Counting modes	Edge to edge: Measure the time between two events Edge to opposite: Measure the duration of an event
Enable with an HSC physical input	Yes
Synchronization / preset with an HSC physical input	No
Comparison function	No
Capture function	No
Resolution	Duration counting with configurable resolution (0.1 µs, 1 µs, 100 µs, or 1000 µs)
Timeout	0...858993459, calculated using resolution units 0 means no timeout