Modbus
communications protocol for sharing data between controllers.
See Also: Communication Protocol, Near Field Communications, Data Communications, Modbus RTU
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Product
Modbus Master TCP/IP Component for .NET
WSMBT
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WSMBT is a powerful and simple to use .Net component that makes it easy to access data from a Modbus slave device connected to the PC's Ethernet network. Simply drop the component on your form and talk to your device with your VB.NET, C# or Managed C++.
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Product
Ethernet-GPIB-USB to Modbus RTU Interface
Model 9009
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* All interfaces provide full control of the Modbus RTU slave devices.* Ethernet port supports VXI-11, raw socket and Modbus TCP/IP to Modbus RTU conversion. * GPIB port works with any IEEE-488.2 compatible GPIB controller.* USB port uses Microsoft supplied driver to prevent operating system change problems.* The 9009 uses a simple command set that is accessible from any port.* Controllable with Windows PC programs like C, Visual Basic, LabVIEW, VEE, etc that make VISA or SICL calls. Works with Agilent, NI and Kikisui VISA libraries* Controllable from MAC/UNIX/LINUX and similar computers with RPC calls.* Ethernet interface protocol is fully VXI-11 compliant and does not require special PC drivers.* Internal webserver with sample Modbus device control pages for Watlow F4, F4T and EZ-Zone Controllers.* OEM oriented board designed for integration inside the user's system with only one cable. On board regulator works with 5 to 15 Vdc power.* Support programs Include ICS's VXI-11 and VISA keyboard control programs and a NTML page utility for uploading your customer webpages.
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Product
Modbus RTU Analog Input Modules
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The Datexel range of Modbus RTU analog input cards for both RS485 and RS232 with Modbus or ASCII protocol can be combined with the DAT9000 series of Modbus Masters. A choice of input cards or modules are available and have various optional inputs such as Voltage, Current, Thermocouples, RTD, and Resistance. Also a choice of 2, 4, 8 channel options are available. The DAT3011 is a Modbus RTU Slave with 1 selectable universal input (Thermocouples, RTD, mV, RTD's or Resistance), 2 x 4-20mA or 0-10V input and 2 x4-20mA outputs. The DAT3011 also has 3 digital inputs and 3 relay outputs. Each module is isolated from each other and is set up using the DAT3000 software Development package which is free of charge from the Datexel download web page. Datexel also has universal input modules. An 8 channel analog input card is available making the DAT3000 series a very economical solution to large and small scale Data Acquisition. Combining these analog input cards with the analog output cards, the digital input/output cards and the communication devices make Datexel the smart choice where Data Acquisition is required.
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Product
10 Digit Rate/Batch Counter (Analogue)
CS2-TM-Analogue
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The CS2-TM Totalizer controller provide high accuracy measurement, display, control and communication (Modbus RTU mode) of 0~10V/4~20mA from flow meter or mV from Shunt for Amp-Hour.There are two display screen and 3 external control input (DI) in standard and the optional 4 Relay, 1 Analogue, 1 Pulse and RS485 port available. They are also support fantastic control function as like as N, R, C mode for totalizer and batch control.
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Product
Flow Monitor
B2900
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Blancett B2900 flow monitor offers advanced digital signal processing technology in an easy-to-access package. Enclosed in a spacious polycarbonate NEMA 4X housing, the electronics are located on a single board, designed for straightforward and convenient field installation. The B2900 enclosure features an LCD display with push button programming as well as a pre-drilled hole for external wiring connections, such as Modbus RTU and other outputs.
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Product
Atmospheric Pressure Sensors
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Equipped with LCD displaySuitable for space measurementsOutput signal RS232Advantech ADAM and Modbus compatible
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Product
Mid Energy Counters
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UEM1P5-4D R for RS485 Modbus RTU/ASCII communicationUEM1P5-D M for M-Bus communicationUEM1P5-4D E for Ethernet (Modbus TCP) communicationFor 1 or 5A CTProgrammable CT ratioFully bi-directional four quadrants measurements for all energies and powersFor 3 / 4 wire networks with balanced or unbalanced load (UEM1P5-4D R and UEM1P5-4D E only for 4 wire networks)Class B according to EN 50470-3S0 output for energy pulse emissionAvailable with MID certification
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Product
Load Cell Transmitter
MODEL SST-LV
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The SST-LV is a Plug & Play Smart TEDS IEEE 1451.4 compliant Transmitter. Just plug in a TEDS compatible Load Cell or Torque Sensor and the SST-LV will automatically self-calibrate. When used with a non-TEDS Load Cell or Torque Sensor, the SST-LV Transmitter is easily programmed using a PC with an RS232 port and Instrument Setup (IS) software, which provides a graphical user interface. The SST-LV may be powered from 12-30 Vac or 10-48 Vdc. The SST-HV Has an Isolated transducer excitation output that is selectable between 5Vdc or 10Vdc. There are Dual solid state relays and an Isolated 4-20 mA, 0-20 mA or 0-10V analog output. There are three Isolated serial data transmitter output ( RS232 , Half-duplex RS485, full-duplex RS485 ) and three serial protocols that are software selectable (Modbus RTU, Modbus ASCII and Custom ASCII). Isolation to 250V rms is provided for power, signal input, analog output, relay outputs, and communications. Isolation adds safety and avoids possible ground loops. The transducer excitation output is isolated to 50V from signal ground.
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Product
RPM Indicator
CS2-RL
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CS2-RL RPM Indicator has been designed with high accuracy measurement, display and communication of pulse (Frequency).The innovation feature is auto-range input from 0.01Hz~ 100KHz (option ~140KHz) and the display resolution will auto-change to show the highest according to input frequency.They are also building in 4 Relay outputs, 3 External Control Inputs, 1 Analogue output and 1 RS485(Modbus RTU Mode) interface with versatile functions such as control, alarm, re-transmission and communication for a wide range of testing and machinery control applications.
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Product
Fixed Gas Detectors
700 Series
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Teledyne Gas & Flame Detection
The sensor electronics are completely protected and immune to water ingress and corrosion. The sensor elements are all plug-in components and can easily be replaced in the field. Operator interface is non-intrusive via a small handheld magnet. Configuration and routine calibration is intuitive and menu driven with fully scripted instructions. Sensor status is displayed on a built-in alphanumeric LED display. The 700 Series intelligent sensor modules feature dual redundant outputs, a linear 4-20 milliamp analog signal and a Modbus RS-485 serial output.
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Product
Monitors
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Whether you need a local display, alarm and shutdown capability, data recording, and the ability to communicate using Modbus over Ethernet TCP/IP; or you need to trend waveform and transient data to provide a predictive look at your machine’s condition, Metrix has a solution to meet your machinery monitoring requirements.
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Product
4 2/3 Digit Voltage/Current Meter
CS1-VA
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CS1-VA economic type Voltage/Current Meter is designed with high accuracy measurement, display and communication of 0~600V or 0~10A for DC/AC/TMRS.They are also available 1 option of 1 Relay outputs, 1 Analogue output or 1 RS485 (Modbus RTU Mode) interface with versatile functions such as control, alarm, re-transmission or communication for a wide range of industrial and testing applications.
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Product
6 Digit Weighing Controller
A6-SG
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A6-SG weighing controller has been designed with high accuracy measurement (24bit A/D), 6 digital display, flexible I/O functions and communication port for general weighing application.They are also build in 4 Relay outputs, 4 External Control Inputs, 1 Analogue output and 1 RS485 (Modbus RTU Mode) interface with versatile functions such as control, alarm, re-transmission and communication for a wide range of industrial applications.They was designed the tracking zero and tracking stable function in programming level. According to the system, user can set the function to get the suitable reading.According the purpose, the 4 relays can be selected individual for feeder, discharge, peak, or alarm in 7 control modes.
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Product
Annunciator
Series 90B
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Dual independent communication ports (RS-232/485 and Ethernet) are available to transmit alarms to other devices. The Series 90B can receive alarms using communication ports, eliminating the need to connect digital inputs and associated wiring. The Series 90B supports Modbus, DNP and ASCII protocols.
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Product
Modbus Stack
softMOD
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SoftMOD is the industry-standard Modbus protocol stack for industrial automation and building management. SoftMOD supports both Modbus RTU (Remote Terminal unit) and Modbus TCP/IP (Transmission Control Protocol) as well both client and server modes.
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Product
4 2/3 Digital Potentiometer Meter
CS2-PM
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CS2-PM Potentiometer Indicator has been designed with high accuracy measurement, display and communication of Ohm (3 wire) as like as Positioner.The meter supports Field Calibration function. It can be calibrated with sensor (Potentiometer) to meet machinery structure.They are also building in 4 Relay outputs, 3 External Control Inputs, 1 Analogue output and 1 RS485(Modbus RTU Mode) interface with versatile functions such as control, alarm, re-transmission and communication for a wide range of machinery and testing equipments applications.
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Product
4 2/3 Digits Voltage/Current Meter
CS2-VA
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CS2-VA Voltage/Current Meter is designed with high accuracy measurement, display and communication of 0~600V or 0~10A for DC/AC/TMRS.● ADTEK builds flexible function as like as 3 bank (for multi-range scaling and set point) and 3 external control inputs meet to various testing equipment inquiry.They are also build in 4 Relay outputs, 3 External Control Inputs, 1 Analogue output and 1 RS485 (Modbus RTU Mode) interface with versatile functions such as control, alarm, re-transmission and communication for a wide range of industrial applications.
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Product
Digital Panel Meter
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Inbuilt Selector SwitchHigh resolution reading with autoscalingSuitable for industrial panels, gen-sets, solar, pump control panels, etc.Optional RS485 for data collectionOptional easy interface to PLC through modbus protocol
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Product
4 Digit Voltage/Current Meter
CM2-VA
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CM2-VA Voltage/Current Meter is designed in simple operation and 20.0mm LED displays in 4 digits with economic cost.They are can be programmed by buttons that are hidden in front panel.They are also available to option relay output and an analog output or RS485(Modbus RTU Mode) communication
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Product
Self-reclosing Overcurrent And Residual Current Protection
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Wide range of solutions to guarantee personnel safety as well as maximum service continuity in the event of a ground current or breaker trip, with automatic reconnection of the installation. Available with RS-485 communications (Modbus RTU) and remote control inputs/outputs.
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Product
Sensor
Hyperion Fluorescein
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The Hyperion Fluorometer sensor range delivers a high-performance measurement of Chlorophyll A, Fluorescein, Rhodamine and Phycocyanin. Offered as standard in a 6000m depth rated, titanium housing the Hyperion Fluorometer has a wide range (9-28V DC) isolated power supply, data output up to 16Hz and RS232, RS485 and Modbus communications.
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Product
4 Digit Process Meter
CM1-PR
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CM1-PR 4 Digits Process Meter has been designed in simple function and 4 digital 20.0mm LED displays with economic cost.They are can be programmed by tact switches that are hidden in backside of front bezel.They are also available option of 2 Relay outputs, 1 Analogue output or 1 RS485(Modbus RTU Mode) interface with versatile functions such as control, alarm, re-transmission or communication for a wide range of industrial applications.
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Product
Branch Circuit Monitor
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Multiple branches of load can be monitored togetherCan group the device as 3 phase load and single phase loadFaster communication through RS485 port (Modbus protocol)Simultaneous sampling of Volts and AmpsAccuracy Class 1.0 as per IEC 62053-21 & Class 0.5 as per IEC 62053-22 StandardsDisplays more than 25 parameters
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Product
Multifunction Counter (Pulse Input)
CM1-CT
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CM1-CT multifunction counter(position) display controller, is design to have 2 pulse input, for proximity switch, photoelectric sensor, encoder etc.. Counting increase or decrease, positioning batch count etc.. display, with External input and Modbus communication port.Multiple types of input mode, trip mode setting to fulfil easy usage and requirement for counter controller. For different requirement, the meter can be with 2 relay or 1 Analogue output or 1 RS485(Modbus RTD mode) communication. (Choose 1 kind of output from the 3 options)
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Product
Digital Ethernet Power Meters
FU2200A
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Beijing GFUVE Electronics Co.,Ltd.
Digital Ethernet power meter with data logger is a three-phase multifunction power and energy meter manufactured by GFUVE. It provides excellent value for monitoring power and energy management systems. It may be used as data gathering devices for intelligent power distribution or plant automation systems. All monitored data is available via a standard digital RS485 communication port, which is based on the Modbus RTU protocol.
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Product
Programmable Digital Panel Meters
RS485
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Kusam Electrical Industries Limited
• Manages sending and receiving signal of multiple Modbus RTU instruments.• Programmable address for reading data• Data form: Unsigned Int / Signed Int• Max.Baud rate: 38400• Programmable address:1 ~ 255• With alarm setting and analog output
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Product
Voltage/Current Indicator
CS3-VA
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CS3-VA Voltage/Current Indicator has been designed in miniature size(24 x 48mm), and provide high accuracy measurement, display and communication of 0~300V or 0~20mA for DC/AC(average).They are also to build 2 Relay outputs, 1 External Control Input, 1 Analogue output or 1 RS485(Modbus RTU Mode) interface with versatile functions such as control, alarm, re-transmission or communication.
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Product
RTD Temperature Indicator
CM2-TR
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CM2-TR RTD Temperature Indicator has been designed in simple operation and 4 digital 20mm LED display with economic cost.They are can be programmed by buttons that are hidden in front panel.They are also available to option relay output and an analog output or RS485 (Modbus RTU Mode) communication.
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Product
Sensor Device for Developers
Waspmote
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Libelium Comunicaciones Distribuidas S.L
Ultra low power (7µA)120+ sensors integrated on 10 Sensor Boards15 radio technologies:Long range: 4G / 3G / GPRS / LoRaWAN / LoRa / Sigfox / 868 MHz / 900 MHzMedium range: ZigBee / 802.15.4 / DigiMesh / WiFiShort range: RFID/NFC / Bluetooth 2.1 / BLEOver the Air Programming (OTA)Encryption libraries (AES, RSA, MD5, SHA, Hash)Certified encapsulated line (Plug & Sense!)Industrial Protocolos: RS-232, RS-485, Modbus, CAN Bus, 4-20mA
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Product
Networked Absolute Inclinometer
T7
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The T7 is available in several interface and protocol options. The physical interface can be RS232, RS485 or US Digital's CAN (Controller Area Network). The protocol can be either US Digital's serial protocol or Modbus RTU. The RS232 version supports a single T7 with up to 100 ft of cable. For users that need longer cable lengths or multiple T7s on a single bus, the RS485 or US Digital CAN (Controller Area Network) version can be used. The USD-CAN protocol allows a network of up to sixty-four T7s to be connected to a single host. Power for each T7 is supplied over the CAN network cable. The host accesses the USD-CAN T7s through US Digital's low cost CANA-232/CANA-485 adapter module. This module allows the host to access each T7 on the network using simple, easy serial port commands, just like the RS232 version. The RS485 version supports up to 32 T7s on the bus.





























