Modbus
communications protocol for sharing data between controllers.
See Also: Communication Protocol, Near Field Communications, Data Communications, Modbus RTU
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Product
Ethernet to Modbus RTU Interface
Model 9099
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* Use Modbus TCP/IP, VXI-11, or Raw Sockets (Telnet) or to control Modbus RTU slave devices.* No special driver required which eliminates driver problems.* Controllable with Windows PC programs like C, Visual Basic, LabVIEW, VEE, etc that make VISA or SICL calls.* Controllable from MAC/UNIX/LINUX and similar computers with RPC calls.* Interfaces with PLCs or any Modbus TCP/IP Controller.* Fully VXI-11 compliant.* Works with Agilent, NI and Kikisui VISA libraries.* Internal webserver with sample Modbus device control pages for Watlow F4, F4T and EZ-Zone Controllers.* Network connectivity eliminates GPIB Bus Extension problems.* Allows multiple users to access the Modbus network or devices.* 9099 is a 2x to 5x faster than the 8099 and includes a new Modbus device control page.
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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.
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Product
12DI/6DO IoT Modbus/SNMP/MQTT Ethernet Remote I/O
ADAM-6050
Isolated Digital I/O Module
12ch digital input(counter)/6ch digital output(pulse output)Protocols:MQTT(TLS),SNMP,Modbus TCP,RESTful API,ASCIIGCL to perform basic logic control rulesPeer-to-Peer function to map I/O statusCloud access: Data update to AzureBuilt-in web serverWatchdog timer to recover the system
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Product
High performance, USB, Ethernet, WiFi
T7 Series
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USB, Ethernet, or 802.11b/g WiFi connectivityFully compatible with Modbus TCP/UDP14 analog inputs at 16–18+ bit resolutionT7-Pro: up to 22 bit resolution, and WiFi2 analog outputs23 digital I/O
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Product
16FE+2G Combo Managed Ethernet Switch Support Modbus/TCP, -40~75℃
EKI-5626CI-MB
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16 Fast Ethernet ports + 2 Gigabit Copper/SFP combo ports (EKI-5626C/CI-MB)Entry-Level Managed SwitchIXM function enables fast deploymentManagement: SNMP v1/v2c/v3, WEB, Standard MIB, Private MIB
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Product
4-Slot Distributed DA&C System For RS-485
ADAM-5000/485
Data Acquisition Module
RS-485 communication for easy installation and networking4 slots for up to 64 points data monitoring card control in one moduleSupports ADAM ASCII protocol or Modbus®/RTU protocolSupports Modbus/RTU protocol with user-defined Modbus addressExtensive software support, includes windows DLL drivers, OCX drivers, OPC server and popular HMI/SCADA software driversSeamlessly integrated with easy-to-use ADAMView data acquisition software
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Product
8Relay Robust Modbus RS-485 Remote I/O
ADAM-4168
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8ch relayOperation temperature:-40~85°C,Power input:10VDC~48VDCNoise protection: 4kV surge(power),4kV EFT,8 kV ESD protectionInterface: RS-485/USB3000VDC isolation protectionLED indicator to monitor I/O status
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Product
PoE TPET Modules
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The tPET Series tiny Modbus TCP based I/O modules provide digital I/O functions and can be Powered over Ethernet. They support I/O pairing and have a din rail mount. The module can be remotely controlled through a 10/100 M Ethernet network by using Modbus TCP/UDP protocol. They are configurable over a web browser and are easy to use. The tPET Series can be used with our FREE EZ Data Logger Software.
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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
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
8DI/8DO Modbus RS-485 Remote I/O
ADAM-4055
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8ch digital input/8ch digital outputProtocols:Modbus RTU,ASCIIWatchdog timer to recover the system2500VDC isolation protection
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Product
Modbus Controllers
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Datexel has a range of Modbus RTU Masters, Slaves, Controllers, Data Loggers and Modbus remote displays. The DAT9000 is a Modbus RTU Master with RS485, RS232 and Ethernet Interfaces. The DAT9000IO is similar to the DAT9000 but it has digital input and outputs. The DAT9000DL has an additional Data Logging facility and the DAT9000DLIO has both Data Logging and digital IO. The DAT9011 is a Modbus Master with 2 analog inputs which can chose from Thermocouple's, RTD's, Potentiometers, mA and mV's. It also has 2 outputs which can be mA or voltage. The DAT9011 can also accept digital inputs and provide 2 SPDT relay outputs. The DAT9011DL also has a Data Logging facility which can store up to 8gb of readings on a thumb drive.
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Product
Smart Meters
EVA-P200 Series
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EVA-P series are compact, cost-effective power meters with high accuracy, Modbus RTU, and flexible wiring—ideal for monitoring and maintenance.
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Product
Zero Air System
Model T701
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Teledyne Advanced Pollution Instrumentation
The T701 adds Modbus TCP/IP connectivity to the proven reliability and performance of our zero air systems. This allows remote monitoring of key instrument functions including dewpoint status, scrubber temperature, box temperature, and output pressure. Additionally, this digital access provides the ability to remotely disable the internal pump, allowing longer service intervals and less power consumption. The user can also remotely start instrument warm-up prior to arrival at the site.The T701 is a fully self-contained source of clean, dry air for dilution calibrators. It can also be used to create purge air for permeation tube ovens or burner air for FID analyzers. The T701 includes a dewpoint sensor, an oil and diaphragm-free pump, and scrubbers to remove SO2, NO, NO2, O3, H2S, and NH3. Optional high performance scrubbers are available to remove CO and Hydrocarbons.
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Product
16DO IoT Modbus/SNMP/MQTT 2-Ports Ethernet Remote I/O
ADAM-6256
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16ch digital output(pulse output)Protocols:MQTT(TLS),SNMP,Modbus TCP,RESTful,ASCIIGCL to perform basic logic control rulesCloud access: Data update to AzureAuto-bypass function to ensure daisy-chain data transmissionPeer-to-Peer function to map I/O statusBuilt-in web serverWatchdog timer to recover the system
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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
8DI/7DO IoT Modbus/SNMP/MQTT 2-Ports Ethernet Remote I/O
ADAM-6250
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8ch digital input(counter)/7ch digital output(pulse output)Protocols:MQTT(TLS),SNMP,Modbus TCP,RESTful,ASCIIGCL to perform basic logic control rulesCloud access: Data update to AzureAuto-bypass function to ensure daisy-chain data transmissionPeer-to-Peer function to map I/O statusBuilt-in web serverWatchdog timer to recover the system
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Product
8-Thermocouple IoT Modbus/SNMP/MQTT Ethernet Remote I/O
ADAM-6018+
Ethernet I/O Module
8ch thermocoupleProtocols:MQTT(TLS),SNMP,Modbus TCP,RESTful API,ASCIIGCL to perform basic logic control rulesPeer-to-Peer function to map I/O statusWatchdog timer to recover the systemBuilt-in web server
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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
Control/Gateway/Display All-In-One Industrial Panel PC
PanKonix Series-HMI Panel PC
Panel PC
The PanKonix® series HMI is an Intel® Core™ i3/i5 and Intel Atom® x5/x7-based panel PC equipped with user-friendly, full-featured HMI software. It ensures seamless PLC connectivity through Modbus protocol support and incorporates trend charts, data logging, alarms, and cloud connectivity functions with RESTful API, MQTT, and OPCUA support for efficient data visualization and machine monitoring.
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Product
Modbus TCP Coupler With ID Switch Slice IO Module
AMAX-5070
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User-friendly Group ID technology. Quick and accurate setup.Cable redundancy for enhanced connectivity. Ensures reliable and stable communication with connected devices.High-density design. Supports up to 256 AMAX-5000 Slice I/O: Allows for extensive data collection and connectivity options.Compact size: 11 x 3 cm form factor. Space-saving and efficient utilization of equipment space.Function diversity. AMAX-5000 provides 15 functional I/O modules.
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Product
Electromagnetic Water Meter
WATERFLUX 3070
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WATERFLUX 3070 is the first battery powered water meter for the drinking water industry that is capable of measuring flow, pressure and temperature with one sensor. Communication via Modbus RTU or pulse.
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Product
WISE-71xx/WISE-72xx Modbus TCP Controllers
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WISE (Web Inside, Smart Engine) are Modbus TCP based Data Acquisition Controllers that allow for remote monitoring and logic control through a web interface. They can trigger outputs based on inputs, send email alarms and can show the status through a web page. WISE Data Acquisition Modules can be configured through a web page to implement IF-THEN-ELSE control logic with just a few clicks; no programming is required.
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Product
Residual Current Protection
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Solutions to ensure the safety of people and installations against any ground currents. Available with ultra-immunized system as an essential solution to avoid financial losses due to outages caused by inadvertent trips. Specially designed to protect industrial installations in AC networks (type A), installations with both AC and DC components and DC-only installations (type B). Available with RS-485 communications (Modbus RTU) and remote control inputs/outputs.
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Product
12DO(Source Type) Modbus RS-485 Remote I/O
ADAM-4056SO
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12ch source type digital outputProtocols:Modbus RTU,ASCIIWatchdog timer to recover the system5000VDC isolation protection
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Product
PQ Meters
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Additional voltage and current measurement channels in comparison with other standard three-phase devices.Current inputs for CTs or for clamps to grant an accurate current measurement.Continuous monitoring of the power quality and Class A certified measurements for voltage characteristics.Simultaneous recording of events, Min/Avg/Max LOG and energy counters.Several possibilities for instrument data transmission: Ethernet, Modbus TCP, 3G network.User-friendly instrument web interface with multilingual pages.
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Product
8Thermocouple Modbus RS-485 Remote I/O
ADAM-4019+
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8ch thermocouple(can be set to voltage or current)Protocols:Modbus RTU,ASCIIWatchdog timer to recover the system3000VDC isolation protectionWiring burned-out detection function
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Product
6-Relay IoT Modbus/SNMP/MQTT 2-Ports Ethernet Remote I/O
ADAM-6260
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6ch relayProtocols:MQTT(TLS),SNMP,Modbus TCP,RESTful,ASCIIGCL to perform basic logic control rulesCloud access: Data update to AzureAuto-bypass function to ensure daisy-chain data transmissionPeer-to-Peer function to map I/O statusBuilt-in web serverWatchdog timer to recover the system
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Product
RS485 Remote Display Indicator
CS1-8
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CS1-8 has been designed for remote display by RS485 (Modbus RTU Mode) interface.
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Product
Power Quality and Revenue Meter
SEL-735
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Schweitzer Engineering Laboratories, Inc.
The SEL-735 Power Quality and Revenue Meter passes accuracy requirements three times more stringent as the ANSI C12.20 Accuracy Class 0.2 standard. Advanced load profile trending, compatible with Itron® MV-90, DNP3, and Modbus protocols, ensures integration with practically any billing system. In addition to a full set of revenue metering features, advanced power quality monitoring will report costly system disturbances.





























