RS485
Serial communication line supporting 32 devices.
See Also: Serial Communications, I2C, RS232, RS422
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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 Serial To Ethernet Modbus Converters / Device Servers
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In the past two decades, legacy serial communication protocols such as Modbus have merged rapidly with modern TCP/IP communication, yielding benefits including widely available infrastructures and greater distance, reliability, and flexibility. CommFront offers a range of industry-proven, easy-to-use serial to Ethernet converters and device servers, both hardware and software types. The applications of our serial to Ethernet converters include acting as a device server or a Modbus RTU/ASCII to Modbus TCP protocol converter; extending serial ( RS232 / RS485 / RS422 / TTL) communication distance over Ethernet network; controlling serial devices from remote Modbus TCP software or Modbus RTU master via Ethernet network; making a wide variety of M2M communication applications possible by enabling client access independent of any operating system or proprietary protocol; and converting conventional serial data network into TCP/IP network, etc.
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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
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
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
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
RS232 / RS485 / RS422 / TTL Serial Repeaters & Hubs
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CommFront offers a range of rugged, industrial-grade RS232 / RS485 / RS422 / TTL repeaters and hubs to meet serial communications' data distance needs by converting unbalanced signals to balanced ones, deploying repeaters to boost signal strength, and implementing hubs for star-configured connections, while still taking full advantage of cost-effective and readily-available copper wire.
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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
RS422/RS485 Serial Boards
104-COM-8S
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These are eight, four, or two-port, asynchronous, serial communication boards designed for use on the PC/104 bus. They support RS-485 and RS-422 communications. The boards may be installed in any standard PC/104 stack. Connections are made via a 50 pin IDC type right angle connector.Common applications include POS, gaming systems, machine monitoring, military and high-density networking.
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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 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
Soil Moisture Sensor
Modbus RS485
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This is a contact-less capacitive soil moisture sensor, a continuation of my I2C soil moisture sensor. This particular version of the sensor is suited for more professional installations where long cable runs is a requirement. It adds a local voltage regulator to mitigate the voltage drop and RS485 transceiver to accommodate long wires, also reverse polarity and an additional ESD protection level is added.
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Product
GPIB-RS485/RS422 GPIB Instrument Control Device - Brazil 127-220VAC
779733-12
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
Ethernet-GPIB-USB to Serial Interface
Model 9006
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* All interfaces provide full communication with the serial device.* Ethernet port supports VXI-11 and raw socket protocols.* 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.* GPIB port is IEEE-488.2 compatible.* USB port uses Microsoft supplied driver to prevent driver problems with operating system change problems.* Serial port provides RS-232 and 2 or 4-wire RS-485 signals.* Supports devices that generate asynchronous messages, devices that respond when queried and smart devices.* Internal webserver for easy configuration from any browser.* Board runs on 5 to 15 Vdc power.* Includes ICS's VXI-11 and VISA keyboard control programs.* Works with Agilent, NI and Kikisui VISA libraries.
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Product
Control Module
ZET 7060-S
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ZET 7060-S – stepper motor digital control module with RS-485 interface.
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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
Economic Type Frequency Indicator
CS1-RL
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CS1-F economic type Frequency Indicator has been designed with high accuracy measurement, display and communication of 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 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 panels and testing applications.
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Product
Programmable Switching Power Supplies
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PeakTech Prüf- und Messtechnik GmbH
In addition to presets for current and voltage values, time programs with intervals and the number of runs can also be created directly on the device or using the included PC software. For operation with a PC, the switching power supply is equipped with a USB and RS-485 interface. A PC connected to the RS-485 interface enables the control of up to 32 power supplies. A USB interface on the back of the device connects to a Windows PC. The intelligent fan control adjusts the speed of rotation to the respective temperature and output power. The output voltage and current limit can also be set in the open circuit without a connected load. Due to its high reliability and the programming functions, this power supply series is ideal for professional users from industry, control and regulation technology or the electronics laboratory.
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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
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
RS-485 and RS-422 Transceivers
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The RS-485 specification meets the requirements for a truly multipoint communications network, and the standard specifies up to 32 drivers and 32 receivers on a single (2-wire) bus. Some RS-485 transceivers modify the input impedance to allow up to 8× more nodes to be connected to the same bus. Analog Devices offers a wide range of standard RS-485/RS-422 transceivers and iCoupler® isolated RS-485/RS-422 transceivers to suit many applications.
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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
CAN Controller
MS 1529
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- The "CAN" Bus Interface for Hall Controllers and Car controller- On-board EEPROM and KEY inputs for user settings parameters- LCD Module Interface- Eight 110 VDC Opto input interface- Six inputs interface (TINS, TUIB, TDIB, FIRE, FP, PRO-SW)- RS485 Interface and RS232 Interface (Optional)- Real time clock for Time Information
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Product
Multi-Function Power Transducer
TD2418B
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The TD2418B is a micro-process based transducer with a 16 bits CPU (Center process unit) and equipped with full-digitized measuring, calibrating and output functions.TD2418B not only can take the place of several static con-verters and measuring instruments (V, A, W, PF, VAR, WH, VARH, Hz) by single unit, but also have some special function such as Maximum measuring, Minimum measuring and comparator output. In communication, we use the most convenient and the easiest RS232 or RS485 as our standard output port, besides, we adopt Modbus Protocol, one of the most popular protocol in the world, as our standard protocol.
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Product
I/O's & Converters
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Rishabh Instruments Pvt. Ltd.,
Module of logic outputs. Control of actuators from monitoring systems or PLC over RS485. 4 relay outputs or 8 OC outputs steered through RS-485/Modbus. Fixing on a TS35 rail. Full galvanic separation between outputs (for relay outputs). Configuration through free LPConfig software.
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Product
Remote Data Acquisition
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Sometimes your sensors or the piece of equipment you are trying to control is not in a convenient place to have a PC close by. The sensors may be widely distributed through out your plant and it just wouldn’t be cost effective to run all your wiring to where the PC is. In addition, low level signals are more accurately acquired when digitized close to the signal source. In all these cases our REMOTE ACCES line of products will help. The REMOTE ACCES pods are intelligent, sensor to computer interfaces. Each pod can be used as an autonomous data logger to acquire data for later download. Or as many as 31 pods may be connected on a single two wire multidrop RS-485 network allowing a cable distance of up to 4000 ft. You can also go wireless and extend your range by adding RS-485 wireless transceivers to your serial port. Each unit comes in a rugged NEMA 4 enclosure and can withstand harsh industrial and marine environments.
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Product
5 Digit Frequency Meter
CS2-F
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CS2-F Freqeuncy Meter is designed high accuracy measurement, display, control and communication (Modbus RTU mode) of pulse(Frequency) or AC Frequency.● The innovation feature is auto-range input from 0.01Hz~ 100KHz(~140KHz in option). The display resolution will be auto-changed 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. Please refer to the detail description on pages 2/33~7/33.There are not only controllers, but also an I/O interface in any system. ADtek built in difference ideal for External Control input and Relay output as like as I/O module of PLC. It’s very connivance to achieve remote monitoring and control by CS2 series.
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Product
RF Down-Converter
CDC100A
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Systems Engineering & Management Company
The CDC100A Series Down-Converter is a 1U rack-mount device designed for use with antennas that have a Tri-Band Feed. The CDCMA100 Series Down-Converter is a synthesized down-converter supporting 1415-1585 MHz, 1650-1850 MHz, 2185-2485 MHz and 4400-5250 MHz, down-converting 4400-5250 MHz to 1415-2485 MHz. The CDC100A is provided as a 1U Expansion Chassis that communicates with any SEMCO receiver via an RS-485 protocol. The communications I/O is via RJ45 and the operator interface is via the receiver RCMS GUI.
