AC detector module / WB-MCM8HV

AC detector module WB-MCM8HV 8 discrete 230V AC voltage presence detection inputs. 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.

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.

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

• Wiren Board controllers (configured via the web interface);
• any equipment supporting Modbus RTU: third-party controllers, HMI panels, SCADA;
• Wiren Board web-based device configurator.

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.