en
AC detector module

WB-MCM8HV

8 discrete 230V AC voltage presence detection inputs
AC detector module

An 8-channel mains voltage presence detector module with an RS-485 interface, designed for monitoring circuit breaker status, polling indicator lamps, and similar tasks.

Key features

Advantages

  • programmable debounce filter;
  • recognition of 4 press types;
  • input state indication;
  • pulse counter values are stored in non-volatile memory;
  • fast and simple integration into automation and monitoring systems;
  • technical support via the portal;
  • your company logo can be applied on request.

Supports Fast Modbus ⚡, which delivers input states and press counter values to the Wiren Board controller instantly.

Hardware

  • RS-485 interface, Modbus RTU protocol;
  • 8 discrete voltage presence inputs;
  • group galvanic isolation of inputs;
  • supply voltage: 9…28 V DC;
  • extended operating temperature range: -40…+80 °C;
  • DIN-rail enclosure: 2M (36 x 90 x 58 mm).

Compatibility

Fast Modbus support

In addition to standard Modbus RTU, all Wiren Board devices support the Fast Modbus ⚡ extension, which adds:

  • instant polling of input states and counters via events;
  • fast discovery of devices connected to the bus;
  • resolution of address collisions on the bus.

Enabling these extra capabilities is seamless for the user — if a device supports the extension, the controller's driver communicates with it over Fast Modbus; if the device knows nothing about the extension, it works over standard Modbus RTU.

Configuration

When used with a Wiren Board controller, you can use the web interface to:

  • set the debounce protection time;
  • set the channel polling period.

To configure the device without a controller, use the Wiren Board web-based device configurator with a WB-USB485 or another interface converter.

Reading data

When used with a Wiren Board controller, output states are available in the controller's web interface and can be used in automation scenarios or forwarded to a higher-level system. The device card only shows the channels enabled in the polling settings.

The module also outputs all data over Modbus RTU (RS-485), which can be read by any equipment or software supporting this protocol: third-party controllers, HMI panels, or SCADA.

Quality control at each stage of production

We develop and manufacture all Wiren Board devices ourselves. Also everyone devices undergo multi-stage quality control:

  • During development - checking the components used for compliance with the declared ones characteristics and testing of the prototype device at extreme operating conditions.
  • After installation of SMD components - automated optical control.
  • After soldering the lead components - visual inspection of soldering.
  • After assembling the device, functional testing on an automated stand.
  • When shipped to the warehouse - control of completeness, stickers, appearance.

Thanks to this approach, the failure rate is no more than 0.5% of all released devices.

If the device fails within two years from the date of purchase, we will replace it for free without need to be sent to a service center.

Any questions? Please contact us.

Legal purchase terms

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    • Phone number
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    • Quantity
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    • Fulfilling obligations to the Buyer
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  • The warranty period for the Product is 24 months from the date of shipment.
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