RS-485
Serial communication line supporting 32 devices.
See Also: Serial, I2C, LIN, Can bus, ExpressCard, Fieldbus, FireWire, RS-232, PCI Express, Serial ATA, Serial Peripheral Interface, SMBus
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Product
RS232 / RS485 / RS422 Isolators/ Isolated Converters
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From 3-wire to 7-wire RS232 isolators, 2-wire RS485 to 4-wire RS422 / RS485 isolators, and USB isolators to USB / RS232 / RS485 / RS422 optically-isolated converters, CommFront has all the industrial-grade optical-isolation devices to protect your assets from the unexpected. If off-the-shelf product does not provide enough security for you, we can even tailor-make the devices, which are customizable right down to the nuts and bolts.
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Product
DIN Temperature/Process Controller
Series 16B
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Dual Control Output, RS-485 Communication, Universal Inputs
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Product
GPIB-RS485/RS422 GPIB Instrument Control Device - Taiwan 110VAC
779733-11
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The GPIB‑RS485 is an IEEE 488 controller device for PCs with RS485 or RS422 ports. You can use this device to integrate an instrument into your system using GPIB. This device transforms a computer with an RS485 or RS422 serial port into a talker, listener, or controller on the GPIB bus. It can also interface RS485 and RS422 instruments and peripherals to the GPIB bus. It can implement the physical and electrical specifications of the IEEE 488, RS485, and RS422 standards, as well as interpret and execute high-level commands from the serial port, including serial‑to‑GPIB, and GPIB‑to‑serial protocol conversions. This device is IEEE 488.2 compatible. The device includes a license for the NI‑488.2 driver software, providing maximum reliability for connecting to third-party instruments with GPIB.
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Product
Multifunctional Meter
CPM-80
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CPM-80 multifunction power analyzer provide high accuracy single phase and three-phase energy measuring and displaying, energy accumulating, power quality analysis, data logging and data communication. CPM-80 series meters are able to measure bidirectional, four quadrants kWh and kVarh. It provides maximum/minimum records for power usage and power demand parameters. Hardware standard built in a RS485 Modbus communication port , 4 Digital inputs, 2 Relay outputs, LCM and 2MB flash for data-logging. In addition , also provide TOU , voltage and current THD, harmonics up to the 63rd and auto wiring change via software .
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Product
cRIO-9048, 1.60 GHz Quad-Core CPU, 4 GB Storage, -40 °C to 70 °C, Kintex-7 70T FPGA, 8-Slot CompactRIO Controller
785621-02
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The cRIO-9047 is a rugged, high-performance, customizable embedded controller that offers Intel Atom quad-core processing, NI-DAQmx support, and an SD card slot for … data-logging, embedded monitoring, and control. It includes a Kintex-7 70T FPGA with LabVIEW FPGA Module support for advanced control and coprocessing. The controller provides precise, synchronized timing and deterministic communications using Time Sensitive Networking (TSN), which is ideal for highly distributed measurements. This controller offers several connectivity ports, including Gigabit Ethernet, USB 3.1, USB 2.0, RS232, and RS485 ports. You can use the USB 3.1 ports to add a local human machine interface and program, deploy, and debug software, which simplifies application development.
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Product
PXI-8433, 4-Port, Isolated, RS485/RS422 PXI Serial Interface Module
779539-01
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4-Port, Isolated, RS485/RS422 PXI Serial Interface Module—The PXI‑8433/4 is a high-performance industrial interface for high-speed, port‑to‑port isolated communication with RS485 and RS422 devices. It features high-performance DMA transfers, multithreading, and multiprocessor support. You can also select between 4‑ and 2‑wire transceiver modes for full‑ and half‑duplex communication. NI serial interfaces also appear as standard COM ports for compatibility with programs that use serial communications.
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Product
16 Mbit/s, 16-Channel Digital I/O Adapter Module for FlexRIO
NI-6584 / 781290-02
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16 Mbit/s, 16-Channel Digital I/O Adapter Module for FlexRIO—The NI-6584 is a digital I/O adapter module that, when combined with a PXI FPGA Module for FlexRIO or the Controller for FlexRIO, creates a digital instrument for interfacing with 16 RX and TX pairs of RS485 or RS422. This digital I/O adapter module for FlexRIO can be used to do real-time interfacing and analysis of RS485 and RS422 as well as other electrically compatible interfaces. The NI-6584 can sample digital waveforms at up to 100 MHz clock rates, has terminated and unterminated options, and full and half duplex configurations.
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Product
High Performance Power Analyzer
AFM-8A
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AFM-8A has Developed for AFC*(Auto Frequency Control) high performance measurement and frequency update, its update up quickeer than 100mSec. multifunction power analyzer provides high-accuracy measurement and is designed for single phase and three phase application. It includes 4 Digital inputs, 4 Relay outputs, and a RS-485 Modbus RTU Communication port. The user can choose one more communication port, and 2 Analog outputs for output expansion.It provides measure voltage and current of the 2~63 harmonic, and it shows CO2 emissions, which is suitable for power monitoring, management and analyze power quality. It has TOU (time-of-use) function and 4MB Flash memory capacity, allowing users to record data for a long time. It also has a software line adjustment function to reduce the on-site line adjustment work.It has the functions of waveform capture and recording, power record, and event record, which can be used for multifunction power analyzer.
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Product
Modbus Transmitter for LPPHOT01 Probe
LPPHOT01S
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The transmitter LPPHOT01S converts the mV analog signal generated by the illumination probe LPPHOT01 into a digital signal suitable to be transmitted over a serial line RS485 with MODBUS-RTU protocol.
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Product
4 Digits Temperature (RTD) Meter
CM1-TR
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CM1-TR RTD Temperature Meter 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
RS-232/RS-485 Converter
ECD485
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Deploy sub-metering sites and simple metering networks with ease using the EDMI MiniHub RS-232 to RS-485 converter.1/4 Load RS-485 modules allow for up to 128 devices over 1.2km of wired daisy-chain network, with each meter capable of becoming the Network Master and remotely connecting to a backhaul system via an integrated EDMI Modem Port redirect connector.
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Product
4 2/3 Strain Gage Meter (1/32 DIN)
CS3-SG
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CS3-SG Strain Gauge Indicator has been designed with high accuracy measurement, display and communication of DC signal 0~1.0/~4.0mV or 0~10.0/~40.0mV as like as Load Cell or Strain Gauge.The meter supports Field Calibration function. It can be calibrated with sensor(Load Cell/Strain Gauge) to meet machinery structure.They are also building in 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 for a wide range of machinery and testing equipments applications.
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Product
Modbus Data Concentrator and Gateway
MBDC-200
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MBDC-200 is an autonomous Modbus data concentratorand collector. The MBDC-200 features two serial ports which can be configured as either RS-232 or RS-485 layer or by combining the two ports as a single RS-422 link. The data concentrator has also an Ethernet port and can be mounted on a DIN rail.
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Product
GPIB-RS485, GPIB Instrument Control Device
779733-04
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Serial, RS485/RS422 GPIB Instrument Control Device - The GPIB‑RS485 is an IEEE 488 controller device for PCs with RS485 or RS422 ports. You can use this device to integrate an instrument into your system using GPIB. This device transforms a computer with an RS485 or RS422 … serial port into a talker, listener, or controller on the GPIB bus. It can also interface RS485 and RS422 instruments and peripherals to the GPIB bus. It can implement the physical and electrical specifications of the IEEE 488, RS485, and RS422 standards, as well as interpret and execute high-level commands from the serial port, including serial‑to‑GPIB, and GPIB‑to‑serial protocol conversions. This device is IEEE 488.2 compatible. The device includes a license for the NI‑488.2 driver software, providing maximum reliability for connecting to third-party instruments with GPIB.
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Product
Low Profile PCI Express 1-Port
7106e
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The 7106e low-profile PCI Express serial interface provides a single serial port configurable for RS-232, RS-422, RS-485 or RS-530. The ultra high-speed UART, flexible clock prescalar, and large 256-byte Tx/Rx FIFOs allows the adapter to support the widest range of standard and non-standard baud rates exceeding 921.6 K bps. These features make the 7106e ideal for data intensive applications that require reliable, ultra-fast throughput rates.
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Product
PCI/PCIe-Based Serial Communications Cards
PCI-C588/PCI-C584/PCIe-C588
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- IRQ & IO address automatically assigned by BIOS- Supports up to 2 cards per system, jumper-less, easy to configure- Isolated RS-422/RS-485 interface (C422/C485, C518/C514)- PCI Rev 2.1 Plug-and-play- PCI Express® x1 compliant (PCIe-C588)
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Product
Thermocouple Temperature Indicator
CM2-TC
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CM2-TC Thermocouple 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
RS232 Null-Modem Cable, DB-9 Female to DB-9 Female, 1m
182238-01
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9-Pin Female DB-9 to 9-Pin Female DB-9 Serial Cable - The 9F-9F Serial Cable, sometimes referred to as GPIB Serial Cable, connects and controls GPIB devices using RS232 and RS485 serial ports. The 9F-9F Serial Cable is offered in different lengths.
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Product
Analog & Digital Gas Controller
MX 32
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Teledyne Gas & Flame Detection
We introduce the new MX 32, a controller that takes analog & digital inputs and covers all needs for a wide variety of applications.The MX 32 is a compact, low-profile controller that continuously monitors gas detection and more generally any 4-20 mA, MODBUS RS485 signal from compatible detectors.
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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
4G Router
ICR-2431G
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ICR-2400, EMEA, 2× Ethernet , 1× RS232, 1× RS485, GNSS, Metal, Without Accessories
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Product
Multi Protocol Analyzer
LE-3500R
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LE-3500R/LE-2500R adopted TTL port as its standard besides RS-232C, RS-422, and RS-485 while having the same feature such as small and light body of LE-3500/LE-2500. You can monitor I2C or SPI without expansion board.
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Product
4G Router
ICR-2431
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ICR-2400, EMEA, 2x Ethernet , 1x RS232, 1x RS485, Metal, Without Accessories
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Product
LCD Power Meters
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Accuracy ±0.1% F.S.Measuring and display ACV/ACA/Watt/Var/VA/Power Factor/Frequency/KWH/DM(Demand)Input measurement network can be selectives(1P2W/1P3W/3P3W/3P4W)CT rate/PT rate can be modified(1 to 9999)Measuring ACV/ACA total harmonic distortion(THD),up to 35th harmonic(optional)Two alarm control function (optional)Two pulse output function (optional)Digit RS-485 interface function (Optional)
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Product
cRIO-9043, 1.30 GHz Dual-Core CPU, 2 GB DRAM, 8 GB Storage, -40 °C to 70 °C, Kintex-7 160T FPGA, 4-Slot CompactRIO Controller
785620-01
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1.30 GHz Dual-Core CPU, 2 GB DRAM, 8 GB Storage, -40 °C to 70 °C, Kintex-7 160T FPGA, 4-Slot CompactRIO Controller - The cRIO-9043 is a rugged, high-performance, customizable embedded controller that offers Intel Atom dual-core processing, NI-DAQmx support, and an SD card slot for data-logging, embedded monitoring, and control. It includes a Kintex-7 160T FPGA with LabVIEW FPGA Module support for advanced control and coprocessing. The controller provides precise, synchronized timing and deterministic communications using Time Sensitive Networking (TSN), which is ideal for highly distributed measurements. This controller offers several connectivity ports, including Gigabit Ethernet, USB 3.1, USB 2.0, RS232, and RS485 ports. You can use the USB 3.1 ports to add a local human machine interface and program, deploy, and debug software, which simplifies application development.
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Product
Piezo Vacuum Gauge
HVG-2020A
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Gas Composition Independent!The HVG-2020A vacuum gauge from Teledyne Hastings is a media-isolated, gas composition independent, piezoresistive instrument that provides accurate pressure measurement throughout the rough vacuum region.The HVG-2020A is easy to install, and the optional display provides the users with several different views, or modes of operation. The HVG-2020A is very flexible and can provide both analog and digital output to easily integrate into process control. A wide variety of linear analog output signals may be selected. This makes the HVG-2020A an excellent choice to replace more expensive capacitance manometers. Digital output can include RS232 and RS485 via a small jack on the top of the instrument. A USB connection is also available on many models which makes connection and operation very easy. Free Windows data acquisition software for data logging is available for the HVG-2020A.
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Product
Logic Analyzer
LAP-16064U
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Zeroplus Technology Corperation
Sample rate (Internal clock): 100MHz asynchronous operation. Sample rate (External clock): 100MHz synchronous operation. Channels may be selectively defulted to /Channels: 16 CH. Upgrade Oscilloscope to measure and decode I2C / UART (RS232C & RS485) / SPI Protocols and mixed signals. Glitch Capture Capability: 5ns. Bandwidth: 75MHz.
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Product
VME Module
ICC-8-xxx
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The ICC-8-xxx is the second generation of the ICC-8 board. Enhancements includes true RS-485 communications with jumper configurable I/O by the user. The ICC-8-xxx is a VME based, 8 channel intelligent and versatile solution to serial data communications designs.
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Product
PC/104 Single Board Computer with Vortex86DX3 System-on-Chip
CM1-86DX3
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The CoreModule CM1-86DX3 is a PC/104 board with DMP Vortex86-DX3 single chip solution and has a very good performance to power ratio. The board comprises all peripherals needed for an embedded PC on a small 3.775" by 4.050" printed circuit board. The CM1-86DX3 integrates a powerful yet efficient DMP Vortex86DX3 with graphic controller and audio controller together with an additional GBit Ethernet controller to form a complete PC, with all the standard peripherals already onboard. Two Ethernet ports (1x GBit and 1x 100MBit), four RS232/RS422/RS485 serial ports, two USB 2.0 host controller to handle the communication with external devices. There are PS/2 connectors for keyboard and mouse. A first generation SATA interface allows the connection of hard disk or CD drive. CFast is also available. System expansion can easily be realized over the PC/104 bus connectors.
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Product
600W - Single Output
GXE Series
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*IEC60601-1, 62368-1 and 60950-1 certification*Convection cooled*High Efficiency (up to 95%)*Digital (RS-485) or analog programming*Constant Voltage & Constant Current Modes*Monitoring & Programming Functions*7 year warranty





























