RS485
Serial communication line supporting 32 devices.
See Also: Serial Communications, I2C, RS232, RS422
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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
PCIe-8433, PCI Express, 2-Port, Isolated, RS485/RS422 Serial Interface Device
781745-01
Serial Interface
The PCIe‑8433/2 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
GPIB-RS485/RS422 GPIB Instrument Control Device - Taiwan 110VAC
779733-11
GPIB Controller
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
PXIe-8431, 8-Port, RS485/RS422 PXI Serial Interface Module
781473-01
Serial Interface
The PXIe‑8431/8 is a high-performance interface for high-speed 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
PCIe-8431, PCI Express, 2-Port, RS485/RS422 Serial Interface Device
782124-01
Serial Interface
The PCIe‑8431/2 is a high-performance interface for high-speed 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
RS485 Null-Modem Cable, DB-9 Female to DB-9 Female, 2m
183283-02
Serial Cable
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
USB / RS232 / RS485 / RS422 Opto Isolators
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USB has now moved from the desktop to more challenging environments, including instrumentation, point of sales, factory & building automation, etc. With our rugged, industrial-grade USB isolators and USB to RS232 / RS485 / RS422 optically-isolated converters, we ensure that your assets are well protected from unexpected events.
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Product
PXI-8433, 2-Port, Isolated, RS485/RS422 PXI Serial Interface Module
779744-01
Serial Interface
2-Port, Isolated, RS485/RS422 PXI Serial Interface Module - The PXI‑8433/2 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
PXI-8431/2 , 2-Port, RS485/RS422 PXI Serial Interface Module
778984-01
Serial Interface
2-Port, RS485/RS422 PXI Serial Interface Module - The PXI‑8431/2 is a high-performance interface for high-speed 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
PXI-8433, 4-Port, Isolated, RS485/RS422 PXI Serial Interface Module
779539-01
Serial Interface
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
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
PCIe-8431, PCI Express, 8-Port, RS485/RS422 Serial Interface Device
780592-01
Serial Interface
The PCIe‑8431/8 is a high-performance interface for high-speed 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
USB To RS232 / RS485 / RS422 / TTL / Serial / Ethernet Converters
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With our high-quality, high-performance USB to RS232 / RS485 / RS422 / TTL serial and Ethernet converters that use only top-quality chipsets such as FTDI and Silicon Labs, USB signals are converted seamlessly into RS232, RS485, RS422, TTL, serial and Ethernet signals. Pick from our menu of industrial or commercial-grade devices confidently, knowing that you will get nothing but the best from CommFront.
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Product
Serial Transceivers
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Exar offers a complete portfolio of RS-232, RS-485 and RS-422 transceivers and the industry's largest portfolio of multiprotocol transceivers. At 52Mbps, Exar offers some of the industry's fastest RS-485 and multiprotocol transceivers.
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Product
Multifunctional Meter
CPM-12
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CPM-12 multifunction power meter provide high accuracy single phase and three-phase measuring and displaying, energy accumulating, power quality analysis, and data communication.Hardware can be option a a RS485 Modbus communication port.Auto wiring change (Note) via softwareCE and FCC approved
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Product
Data Logger for Extremely Low Temperature
DSR-ELT
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Special probe using military industrial technology supports measuring temperature ultra low to -196 Original fittings for sensor connection, ensures 100,000 plugs Support single DSR connecting to PC via USB interface, and multiple DSR grouped in RS485 or LAN networking for central management Suitable for medical refrigerator, biological specimens preservation, scientific research and other applications
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Product
USB / RS232 / RS485 / RS422 Opto Isolators
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USB has now moved from the desktop to more challenging environments, including instrumentation, point of sales, factory & building automation, etc. With our rugged, industrial-grade USB isolators and USB to RS232 / RS485 / RS422 optically-isolated converters, we ensure that your assets are well protected from unexpected events.
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Product
8-CH Analog Input Module
ND-6017
Data Acquisition Module
ADLINK's NuDAM data acquisition modules make up a total acquisition network and control system. Up to 256 NuDAM modules an be romotely controlled on any RS-485 network from a host computer, via a single serial RS-232, allowing communication from as far as 4000 feet from the host. Based on the RS-485 multi-drop network system, each module has a unique address ID, whereby simple ASCII command & response protocols through the standard RS-485 interface can control all the NuDAM modules in the RS-485 network. The NuDAM modules provide direct communications with a wide variety of sensors, perform all signal conditioning, scaling, linearization and conversion, and can acquire measurements of temperature, pressure, flow, voltage, current, and multiple digital signal types.
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Product
Powerline Analyzer
SHARK 100-S
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Amperis introduces one of its most advanced Sub-Meters. This high performance product is designed to measure the use of electrical energy with an accurate degree of billing and send that information by the most advanced means of communication. The unit supports RS485, Ethernet RJ45 or IEEE 802.11 Wi-Fi ethernet. This allows it to be installed anywhere in the building or construction and communicate with the Cetral Backup Software easily, quickly and automatically.
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Product
- RS-485 to Fiber Optic Converter
Model 276A
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FEATURES: Data Rate to 1 MBPS; ST Connectors; DB-25 Connector; Half-duplex operation; Extends distance of RS-485 network to 6,600 ft (2 km) on multimode fiber cable. The Model 276A provides the capability of transmitting an RS-485 signal via a fiber optic link.
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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
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
SparkFun USB To RS-485 Converter
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This is the newest revision of this board and this breakout board pairs an SP3485 RS-485 transceiver with an FT232RL USB UART IC to convert a USB stream to RS-485. The SP3485 is a half-duplex transceiver, so it can only communicate one way at a time, but it can reach transmission speeds of up to 10Mbps.
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Product
6U Compact PCI Multiport Serial Card
CP69002
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LinkedHope Intelligent Technologies Co.,Ltd.
CP69002 is designed as 6U Compact PCI Multiport Serial Card. The eight serial ports are in depended and magnetic isolated. The transform mode can be configured as RS232, RS422 and RS485 through the jumpers. The upstream interface is 32 bit 33MHz PCI bus.
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Product
cRIO-9048, 1.30 GHz Dual-Core CPU, 2 GB DRAM, 8 GB Storage, -40 °C to 70 °C, Kintex-7 160T FPGA, 8-Slot CompactRIO Controller
785619-01
Embedded Controller
1.30 GHz Dual-Core CPU, 2 GB DRAM, 8 GB Storage, -40 °C to 70 °C, Kintex-7 160T FPGA, 8-Slot CompactRIO Controller - The cRIO-9048 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
4 Digit Process Meter
CM2-PR
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CM2-PR Process 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 2 relay output and an analog output or RS485(Modbus RTU Mode) communication.
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Product
4 2/3 Digital Resistance Meter (1/32 DIN)
CS3-RS
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CS3-RS Resistance Indicator has been designed with high accuracy, display, control, remote communication.A compact body design for small equipment, laboratory instrument, and others.Also are available with relay output, analog output, RS485 Modbus RTU communication to cover a wide range of applications.
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Product
Multi-Circuit Power Meter (DIN rail) (ADPower Series)
ADP-PM-A
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The ADP-PM-A was designed for multi-circuit power measurement, up to 12 single phase or 4 three-phase circuit power inputs. Applicable to different types of power circuit makes ADP-PM-A a valuable option.Hardware built in 1 RS485 (Modbus) communication port, demand function, data logging and 2MB Flash memory.At the same time, din rail mounting provides easy installation and larger flexibility.
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Product
Multi I/O FMC Module
FMC155
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The FMC155 is an FPGA Mezzanine Card (FMC) per VITA 57.1 standard, offering a small footprint and allowing for general-purpose I/O expansion. The FMC155 provides sixteen LVDS input/outputs, eight RS-485/422 RX plus eight RS-485/422 TX, and sixteen single-ended +3.3 V input/outputs.
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Product
Economic Type Strain Gauge/Load Cell Indicator
CS1-SG
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CS1-SG economic type strain gauge/load cell indicator is equipped with high accuracy measurement, display and communication of DC signal 0~1.0/~4.0mV or 0~10.0/~40.0mV.It supports field calibration, and It can calibrate with sensor (load cell/strain gauge) according to actual needs.It is able to select one from these three functions, 1 relay output, 1 analogue output or 1 RS-485 (Modbus RTU Mode) interface; they provides many functions such as control, alarm, re-transmission, and communication.
