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Modbus RTU components for automation in buildings, installations and systems

METZ CONNECT – Modbus RTU IOs I/O components with Modbus RTU For automation in buildings, installations and systems Safe and low-cost operation of infrastructures in large as well as small buildings requires that the most important operational functions such as system control, air conditioning, ventilation and lighting are automated. However, this also increases the demands on the functions of the building installation, which can usually be met by conventional technology only at considerable expense. For this reason, building automation increasingly uses serial bus systems that transmit...

METZ CONNECT – Modbus RTU IOs 4 outputs – digital (relay) Suitable for the detection of potential-free switch states of electrical limit switches on ventilation flaps or auxiliary contacts on contactors. Examples are fire dampers or ventilation dampers. The inputs can be connected by means of potential-free switches or contacts as well as voltage inputs. The inputs can be queried via standard registers via a Modbus master. The settings of the module address, baud rate and parity are made via two address switches or via software. The MR-DI4-IP is available in IP65 housing and with external...

METZ CONNECT – Modbus RTU IOs 8 inputs – analog universally configurable To switch electrical components, such as relays, contactors, HVAC valves, etc. Especially suitable for noiseless and cyclic switching (PDM). 4 digital triac outputs Switchung voltage 24 to 250 V AC Rated current 0.5 A/Triac Switching current <30 s 0.8 A Fuses (triacs) 2 A each Total current over all  outputs max. 2.4 A Output voltage 0 to 10 V DC Output current 5 mA at 10 V DC Resolution 10 mV/Digit Principle diagram 24 V Modbus RTU on RS-485 Output: Voltage 0-10V It can be used as an encoder for control variables,...

METZ CONNECT – Modbus RTU IOs 4 inputs – digital 2 outputs – digital (relay) c P/N MR-DIO4/2-IP65 230 V 4 inputs – digital 2 outputs – digital (relay) 4 inputs - analog configurable 2 outputs - analog Suitable, for accommodating light switches and window contacts in a room, switching two striplights on and off or for controlling blinds. The control of 2 motorized fire dampers is also possible, as are many other applications. Suitable, for accommodating light switches and window contacts in a room, switching two striplights on and off or for controlling blinds. The control of 2 motorized...

METZ CONNECT – Modbus RTU IOs MR-TP MR-F-TP 6 inputs – digital 2 two-stage relay outputs – digital (relay) P/N 4 Inputs – analog (universally parameterizable) Suitable to switch, for example, multilevel pumps and fans or louvers. With strong inductive loads, we recommend protecting the relay contacts additionally with an RC element. The inputs and outputs can be switched and scanned with standard commands. The input contacts 1 to 6 are wired with the C2 contacts on two poles to potential-free switches or contacts. The module has a manual control for the outputs. The module address and the...

METZ CONNECT – Modbus RTU IOs 11 inputs – digital, 7 inputs – analogue 8 outputs – digital, 2 outputs – analogue 1 S0 current interface The module MR-SM3 is a smart meter component for use in building automation. Current, voltage, power and many other values can be recorded by three 230 volt circuits. Moreover, monitoring functions, such as asymmetry, phase failure, phase sequence, and over and undervoltage are provided. The values can be queried using a Modbus-Master. The module address, bit rate and parity are set via two rotary switches on the front or by software. Suitable for...

METZ CONNECT – Modbus RTU IOs NG4 NG4-F Power supply unit 24V DC/700mA P/N MR-GW MR-F-GW Modbus RTU / Modbus TCP Gateway The power supply NG4 supplies regulated direct voltages for supplying power to the respective devices of the product range I/O components. The device supplies regulated direct voltage 24 V DC at a power of 16 watts. The MR-Gateway MR-GW enables a bidirectional data exchange between Modbus RTU fieldbus devices and a Modbus TCP master (client). The MR-GW can be operated in two modes. Either as a transparent Gateway in the Modbus RTU over TCP operating mode or as a protocol...

METZ CONNECT – Modbus RTU IOs Leakage sensor LKS-ZD MR-CT Software Modbus configuration tool P/N One-pole submersible electrode made of stainless steel with protective polypropylene cover. Applications: Electrically conductive liquids, water supply, wells, pumping stations and dry run protection. To be connected to the level sensor ENW-E12 (P/N 110308xx) and MR-LD6 (P/N 11084413). Contents of the packaging: 1 x submersible electrode 1 x protective cover 1 x PG gland The USB to RS485 converter allows The leakage sensor LKS-ZD with to connect devices with serial wire breakage monitoring is...

METZ CONNECT – Modbus RTU IOs Application matrix Application examples for I/O components APPLICATION APPROPRIATE DEVICE Actuate heat registers Relay, digital output Measure room temperatures Analog input Actuate pumps (i.e. supply line) Relay, digital output Actuate mixer motors Analog output Actuate motor valves (radiators) Triac output, analog output Relay, digital output, Triac output Actuate motor valves (radiators) Triac output, analog output Collect temperature values Analog input Motor actuation of window flaps Relay, digital output Collect wind speed data Analog input Detect rain...

METZ CONNECT – Modbus RTU IOs APPROPRIATE DEVICE Smoke extraction with flap drives Relay, digital output Detect flap position Digital or analog output Smoke extraction by fan actuation Relay, digital output Unblock light barriers of elevators Digital input People counting Digital input, counting input Collect motion detector data Digital input Monitor window contacts Digital input Collect data of vibrabtion detectors (i.e. window panes) Digital input Collect infrared sensor data Digital input Collect radar sensor data Digital input Trigger the alarm sensor Relay, digital output Meter...