RS485
Serial communication line supporting 32 devices.
See Also: Serial Communications, I2C, RS232, RS422
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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, 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
RS232 To RS485/422 Converter
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This device transparently converts RS-232 serial data to RS-485 or RS-422. It allows the creation of reliable long distance data communication systems using standard computer hardware.
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Product
USB-485/4, 4-Port, USB, RS485/RS422 Serial Interface Device
778476-94
Serial Interface
The USB‑485/4 interface transforms your USB port into a single asynchronous serial port for communication with RS485 and RS422 devices. You can use a USB‑485/4 port as a standard serial port from your application, including RTS/CTS hardware handshake lines. NI serial interfaces also appear as standard COM ports for compatibility with programs that use serial communications.
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Product
RS232 / RS485 / RS422 / Serial To Multi-Drop Fiber Optic Converters
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Our advanced, rugged, industrial-grade, RS232 / RS485 / RS422 serial to multi-drop fiber optic converters are designed to cover large areas. These converters support up to 255 fiber nodes, and each fiber node can extend the RS232 / RS422 / RS485's distance to 3 miles (5km) for multi-mode converters and cables, or 25 miles (40km) for single-mode converters and cables. Depending on the site situation, these multi-drop fiber optic converters can be configured as a daisy-chain or a self-healing redundant ring fiber network. When configured as a ring fiber network, the built-in self-healing feature allows the data to be transmitted clockwise or counterclockwise; therefore, failure of any individual converter will not affect other devices located on the same fiber ring, making the entire data network more robust and reliable. These multi-drop fiber optic converters have been designed for harsh industrial environments and withstand a wide temperature of -40°F to 185°F (-40°C to 85°C), and they come with the options of multi-mode and single-mode, and ST, SC, and FC connectors.
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Product
USB-485/4, 4-Port, USB, RS485/RS422 Serial Interface Device
778476-104
Serial Interface
The USB‑485/4 interface transforms your USB port into a single asynchronous serial port for communication with RS485 and RS422 devices. You can use a USB‑485/4 port as a standard serial port from your application, including RTS/CTS hardware handshake lines. 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, 16-Port, RS485/RS422 Serial Interface Device
780592-02
Serial Interface
The PCIe‑8431/16 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
RS232 / RS485 / RS422 / Ethernet Surge Protectors
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Our passive, rugged, industrial-grade RS232 / RS485 / RS422 / Ethernet surge protectors are designed for direct industrial DIN-rail mounting and they come with two (2) or three (3) stages of surge protection — Gas Discharge Tube (GDT), protection resistors, and Transient Voltage Suppressor (TVS) - for maximum protection. From 2-wire RS485, 4-wire RS422 / RS485, to 10 / 100 / 1000M Ethernet, CommFront's surge protectors safeguard your data lines and provide you with a peace of mind.
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Product
I2C Adapter
RS485
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*RS485 address adjustable via DIP switch*I2C frequency adjustable up to 400kHz*I2C level shifter, I2C level from 2V to 15V*Interrupt input for external events*Simple software interface (ASCII commands)
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Product
GPIB-RS485/RS422 GPIB Instrument Control Device
779733-02
GPIB Controller
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
USB-485/4, 4-Port, USB, RS485/RS422 Serial Interface Device
778476-14
Serial Interface
The USB‑485/4 interface transforms your USB port into a single asynchronous serial port for communication with RS485 and RS422 devices. You can use a USB‑485/4 port as a standard serial port from your application, including RTS/CTS hardware handshake lines. NI serial interfaces also appear as standard COM ports for compatibility with programs that use serial communications.
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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
Transducer with RS485 Interface
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RS485 Temperature, Humidity, Atmospheric Pressure and CO2 Transducers.
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Product
IRIG-B TTL TO RS485 Converter
SPC - INS - 1010
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Signals & Systems India Private Limited
The IRIG-B TTL signal is a time synchronization protocol that can be transmitted up to 50m maximum using coaxial cable. So the relay which is to be received the IRIG-B TTL signal may be far away from the IRIG-B source. The relay may be not able to synchronize with the GPS. To avoid such an incident in the field, some of the relays have provision to receive IRIG-B RS485 signal. The IRIG-B RS485 signal can able travel up to 1200m without any booster. All Time source equipment may not be supplied with IRIG-B RS485 signal output. The converter will act as a bridge between GPS Time source and Relays for time synchronization.
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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
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
4 2/3 Digital Process Meter (1/32 DIN)
CS3-PR
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CS3-PR Process Indicator has been designed with 0~10V and 4(0)~20mA high accuracy measurement.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
SEA CLIP™ Sensor & Aqua MER™ Meter
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The SEA CLIP™ by Swain Meter is a high-quality, hydraulically actuated clamp-on DC ammeter for ROV. It is useful for measuring DC currents in subsea cables, cathodic protection systems, and subsea pipes up to 4” in diameter. The SEA CLIP™ can be used with an optional 200-foot cable to a topside meter, or in concert with the Aqua MER™ subsea meter at depths up to 6900 feet of seawater.The Aqua MER™ ROV meter is based on Swain’s proven MER2™ technology, specially adapted to the demanding requirements of the subsea environment and updated to provide RS-485 communication over twisted pair, or fiber optic data transmission protocols.
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Product
RS-232 to RS-422/RS-485 Interface Converter
Model 9365
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FEATURES: DIN Rail Mountable; User Selectable RS-422 or RS-485; User Selectable Two- or Four-wire RS-485; DataSpy® LCD Display; Intelligent Control of RS-485 Transmitter and Receiver; DTE/DCE Compatible; Data Rates Up to 115.2 kbp.
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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
DC Power Supply
62000H Series
DC Power Supply
The 62000H Series includes 14 different models ranging from 5KW to 15KW, with current range up to 375A and voltage range up to 1000V. The 62000H can easily parallel up to ten units capable of 150KW with current sharing for bulk power applications, for example, battery bank simulation of 450V/150A/67.5KW for electric vehicle and military use. There are 100 user programmable input status on the front panel for automated test application and life cycle ON/OFF test. In addition, the 62000H has a 16 bit digital control with bright vacuum fluorescent display readout. The 62000H series DC power supplies are very easy to operate either from the front panel keypad or from the remote controller via USB / RS232 / RS485 / APG (Standard) and GPIB & Ethernet (optional). Its compact size with 3U only can be stacked on a bench in a standard rack without any difficulty.
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Product
1-Port Modbus Gateway
ADAM-4572
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Supports Modbus/ASCII, RTU Protocol to control devices. Allows up to 8 clients to access field data simultaneously. Up to 31 Independent serial ports if configured to RS-485 serial mode.
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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
Flow Controller Meters
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Auto. change red or green display when alarm status changesAccuracy±0.75% of full scaleMeasuring pipe size range DN 15 to DN 600(0.5 to 24 inch.)Measuring flow velocity range 0.1 to 8 M/s(0.33 to 26 Ft/s) Field-rangable supply voltage from DC 14 to 28 VDisplay flow units Liter,GAL,M3,TON can be modifiedDual alarm function (optional)16 bit DAC analog output function (optional)Digit RS-485 interface function (optional)Protection class NEMA4/IP65
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Product
Isolated Wide Operation Temperature RS-422/485 Repeater
ADAM-4510I
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Wide Operating Temperature: -40 ~ 85° CAutomatic RS-485 data flow control3000 VDC isolation protectionSurge protection RS-485 data lineLED indicator to monitor status
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Product
Interface
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Renesas offers industry-leading devices to enable efficient and reliable communication for industrial control, networking and computing applications. Dual protocol transceivers, voltage level translators, I2C Buffers, wide operating voltage range RS-232 transceivers, and RS-485/422 devices with the highest noise immunity and ESD protection in small packages are available to support high-speed data transfer and a variety of configurations to fit your applications.
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Product
Serial-to-Daq Card
Model 2307
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* 2307 Board provides 32 digital I/O lines, 4 analog outputs, 6 analog inputs, 6 relay driver outputs and 4 temperature inputs.* Firmware supports ASCII command strings, Addressed commands for RS-485 networks and packet protocol. * Operates as a RS-232 as a RS-485 to Data Acquisition Board. * DE-9 connector has both RS-232 and RS-485 signals.* SCPI commands and IEEE 488.2 compatibility provide GPIB like operation over the serial link. * Runs on 5 Vdc power.
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Product
3U CompactPCI® RS-232/422/485 Serial Communication Card
MIC-3955
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The MIC-3955 is a low power 4-port or 8-port RS232/RS422/RS485 serial board with 3U CPCI form factor and is based on the EXAR PCI controller. MIC-3955 is PICMG 2.0 Rev. 3.0 compatible. Rear board module are named MIC-3527XX. The MIC-3955 supports front IO or rear IO with 4-port and 8-port, and every channel is independent.
