RS485
Serial communication line supporting 32 devices.
See Also: Serial Communications, I2C, RS232, RS422
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Product
Weather Resistant Surge Protector for RS485 Control & 12VDC Power Lines
SP-RS485-12V-O
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Ideal for applications such as video surveillance cameras and access control. Protects sensors running on 22 AWG 2-wire sensor cables or 12VDC power lines against the effects of electrostatic discharge, faulty wiring and lightning. RS485 protection: Stage 1 clamping voltage: ±90V; Stage 2 resistance: 3.3 Ohms; Stage 3 clamping voltage: ±7.5V. 12VDC power lines protection: Stage 1 clamping voltage: ±90V; Stage 2 current rating: 3A; Stage 3: 12V TVS (transient voltage suppression) diode. Screw terminal pairs for RS485 and 12VDC power lines protection. Will also protect two single ended data, analog or control lines. Impact and weather resistant enclosure with locking hinged cover.
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Product
4G Router
ICR-2432
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ICR-2400, LATAM, 2x Ethernet , 1x RS232, 1x RS485, Metal, Without Accessories
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Product
Load Cell Transmitter
MODEL SST-HV
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The SST-HV 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-HV 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-HV may be powered from 95-240 Vac ±10%. 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
4 Digit Voltage/Current Meter
CM1-VA
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CM1 series Indicator has been designed in simple function and 4 digital 20.0mm LED displays with economic cost.They can be programmed by tact switches that are hidden in backside of front bezel.They are also available option of 2 Relay outputs, 1 Analog 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
GPIB Smart Serial Interface
Model 4866
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* Adds an IEEE-488.2 compatible GPIB Interface to any serial device.* Provides all IEEE-488.2 functions and a Status Reporting Structure for the serial device.* Uses SCPI commands to set the serial configuration, GPIB address and user's IDN message.* Provides RS-232C single-ended and RS-422/RS-485 differential serial signals.* Operates with asynchronous serial devices, with standard serial devices and with 'smart' serial devices such as embedded computers or microprocessors.* 1 U high rack mount kit mounts one or two 4866s* Includes US 115 VAC Power Adapter, Manual and Support CD.
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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
Wiring Boxes
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Radio receiver for heating / cooling systems equipped with an integrated antenna, an output with SPDT relay and an RS485 Modbus® RTU slave communication port.
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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
USB-485/2, 2-Port, USB, RS485/RS422 Serial Interface Device
778476-02
Serial Interface
The USB‑485/2 interface transforms your USB port into a single asynchronous serial port for communication with RS485 and RS422 devices. You can use a USB‑485/2 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
Logic Analyzer & Digital Pattern Generator
ScanaQuad Series
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ScanaQuad (SQ) is a series of high performance 4 channels logic analyzers and digital pattern generators. They are designed to be your best companion when working on serial protocols like UART, SPI, I2C, 1-Wire, USB, I2S, CAN, LIN, RS232, RS485, and more. With ScanaQuad Logic Analyzers, you can capture signals, you can play them back, and you can even build genuine test signals and generate them!
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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
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.
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Product
4 Digits Temperature(TC) Meter
CM1-TC
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CM1-TC Thermocouple Temperature 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 front panel.They are also available to option relay output or an analog output or RS485(Modbus RTU Mode) communication.
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Product
Process Indicator
CS1-PR
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CS1-PR economic type Process Indicator has been designed with high accuracy measurement, display and communication of DC signal 0~10V and 4(0)~20mA.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 applications.
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Product
IRIG B to NTP/SNTP Converter
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Signals & Systems India Private Limited
IRIG B TO NTP/SNTP CONVERTER – SPC-INS-1010 is a compact DIN rail mountable protocol converter unit which synchronizes and maintains the timing and frequency requirement of power and process industry equipment using IRIG-B signal obtained from GPS receiver. It provides nanosecond accuracy when external time references are not available. It has the storage facility to store the system log file. It delivers NTP, SNTP, PFC-Pulse, RS232 & RS485 outputs. The system enables configuration and monitoring through Web-based application. It supports a wide range of power supply input either 90V-260V AC/DC or 18-36VDC or 36V-72VDC.
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Product
PMC-BiSerial
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Two fully independent and highly programmable RS-485 / RS-422 IO channels are provided by the PMC-BiSerial design. The channels are supported by two independent state-machines created within the Xilinx FPGA. The transmit and receive protocol can be the same or different. Manchester encoding and decoding, standard serial [UART], control, command, instrumentation, and custom protocols can be implemented.
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Product
PXIe-8431/16, 16-Port, RS485/RS422 PXI Serial Interface Module
781473-02
Serial Interface
The PXIe‑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
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-2441W
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ICR-2400, NAM, 2× Ethernet , 1× RS232, 1× RS485, Wi-Fi, Metal, Without Accessories
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Product
ARM LPC2364 Board
MS 1541
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- 128KB On chip Flash- 16*2 line LCD Module interface- Two CAN channel at 1MPBS- Ethernet interface which supports 10/100 MBPS- Full Modem RS232 interface- RS485 interface- RTC (Real Time Clock)- 2048 bits serial EEPROM with data protect and sequential read.- 24 ULN outputs of 12V level.- Eight 110V DC inputs interface.- Six digital inputs interface- Four on board keys interface- Power delay circuit for external use- ON board inspection circuit
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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
SIRIO
4AAX4A
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Sirio is a low-cost multi-function meter in a 4 DIN module, ideal for measurement and display of the most important electrical parameters.Sirio can be installed in single phase and three-phase unbalanced systems in a triangle or in a star layout with sturdy 4 mm2 terminals for measuring the current and voltage.It monts an 8 digits LCD display. It displays 7 major measures (True RMS) and more than 40 RMS are available on the integrated RS485 serial port.Siri0 include two relay outputs, user-configurable for alarms, pulse or remote control.All parameters are configurable from instrument keyboard already installed.
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Product
PCI-8433, 4-Port, PCI, Isolated, RS485/RS422 Serial Interface Device
779146-01
Serial Interface
The PCI‑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
Managed Modbus Router and Gateway
MBRG-300
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MBRG-300 is an advanced Modbus gateway and router.The MBRG-300 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 router has also an Ethernet port and can be mounted on a DIN rail.
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Product
4 Serial Communication Channels, Multi-Mode Programmable, Non-Isolated
SC7
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Module SC7 supports intelligent, full duplex, independent, multi-channels that can be individually software-configured for either RS-232C, RS-422, RS-485, RS-423 (w/data and/or clk bit inversion for MIL-STD-188C unbalanced interface support), or synchronous or asynchronous communications. SC7 is the same as SC1 except SC7 reallocates the pins used for CTS Flow Control as four (4) additional system grounds.
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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
Modbus/TCP Gateway
MODG-100
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MODG-100 is a Modbus/TCP to Modbus RTU gateway. Itfeatures one serial port which can be configured as either RS-232, RS-485 or RS-422 and an Ethernet port. It can be mounted on a DIN rail.
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Product
Pulse
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*MODBUS Master RS485 / RS232*Up to 10 slaves or 15 registers per slave*Monitoring and supply of power to the sensor*Local and remote configuration
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Product
Compact Protocol Analyzer
LE-1500R
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"LE-1500R" is a protocol analyzer (line monitor) dedicated for asynchronous communication monitoring with affordable pricing. LE-1500R can run as a stand- alone by the internal battery for long time and can be remotely controled by a PC or a smart phone via Wi-Fi (Wi-Fi function is available only in USA, Canada, Japan, and EU). The analyzer has a TTL measurement port (which supports UART communication) as its standard port besides RS-232C, RS-422, and RS-485. It can monitor communication data of max 500Kbps for up to 32MB (8,000,000 data) in real time and also can execute a simulation testing of send/receive data. It also has a BERT function (which is not equipped with the analyzers of this pricing level) as its standard function. The correct time stamp, the measurement of idel time (which are the difficult for other software analyzers), and the capturing ability (without missing data) are the best options for trouble shooting and development test of a communication sytem which requires a reliablity.
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Product
Modbus Transducers
THI Sensors
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The THI-485 sensors are Modbus transducers for measuring thesurrounding temperature and relative humidity or for theacquisition of up to four passive pulse signals or digital states. This feature extends the possibilities of the device, turning it into a kind of RS485 pulse concentrator from other sensors andmeters.
