STBEHC3020KC

What type of automation component is this?

It is a one-channel high-speed counter kit for the Modicon STB distributed I/O platform. It processes pulse signals from industrial sensors, contacts and incremental encoders.

What is the maximum counting frequency?

The module can process counting signals at frequencies of up to 40,000 Hz, making it suitable for fast pulse-counting and frequency-measurement applications.

Which counting functions are available?

Available functions include up/down counting, down counting, event counting, frequency measurement, time-period measurement and loop or modulo counting.

How many counting inputs does the module provide?

The STBEHC3020KC provides two counting inputs within a single counter channel. These inputs are identified as IN A and IN B.

Which input devices are compatible with the counter?

Compatible devices include two-wire and three-wire photoelectric sensors, two-wire and three-wire proximity sensors, mechanical contacts and incremental encoders.

What input voltage does the counter use?

The counting inputs operate at a nominal 24 V DC, with an accepted input-voltage range of 19.2 to 30 V DC. Input logic is positive.

What outputs are included?

The kit provides two 24 V DC discrete outputs, identified as OUT1 and OUT2. Each output has a nominal current rating of 0.5 A, and its logic can be configured as positive or negative.

What components are included in the kit?

The kit comprises an STBEHC3020 counter module, an STBXBA3000 mounting base and an STBXTS2150 18-terminal removable spring-clamp connector.

Which power distribution modules are compatible?

The counter is compatible with STBPDT3100 and STBPDT3105 power distribution modules and has a rated field supply voltage of 24 V DC.

What is the logic-bus current consumption?

Current consumption is between 60 and 100 mA at 5 V DC from the logic bus.

What are the module dimensions?

The module measures approximately 28.1 mm high, 70 mm deep and 128.3 mm wide.

What environmental conditions can the module withstand?

It is rated for operation from -25°C to 70°C without derating and storage from -40°C to 85°C. It can operate at up to 95% relative humidity at 60°C without condensation and at altitudes of up to 2,000 metres.

What enclosure protection rating does it have?

The counter has an IP20 rating in accordance with IEC 61131-2 Class 1, so it is intended for installation inside a suitable industrial control enclosure.

Which status indicators are provided?

LED indicators show module readiness, module fault, enable and reset input states, both counting-input states and the status of each output.

Can the module be replaced while the station remains energised?

The module accommodates cold swapping and defined hot-swap fallback behaviour. The resulting output state depends on the network interface arrangement and the selected fallback parameters.

What electrical protection features are built in?

The outputs incorporate overload and short-circuit protection through current limiting and electronic tripping, with manual or automatic reset behaviour.