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RS485
Serial communication line supporting 32 devices.
See Also: Serial Communications, I2C, RS232, RS422
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- RS-232 to RS-422/RS-485 Converter
Model 285
FEATURES: User Selectable RS-422 or RS-485; User Selectable 2 or 4 Wire RS-485; Intelligent Control Of RS-485 Transmitter And Receiver; TD & RD LED's; DTE/DCE Compatible; Data Rates Up to 64 KBPs. The Model 285 RS-232 to RS-422/RS-485 Converter is a unique interface converter that can be configured to operate in compliance with RS-485 or RS-422 equipment, and RS-232.
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RS-422 RS-423 RS-485
The low-power, high-speed transceivers of this family are designed for RS-485, RS-422 and RS-423 communication applications. They usually contain one driver and one receiver in half duplex configuration. Each driver output and receiver input is protected against electrostatic discharge up to ± 15 kV and has no latch-up. These transceivers operate with a 5 V supply and draw a very low supply current when unloaded or fully loaded but with disabled drivers.
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RS-422/RS-485 Repeater
ND-6510
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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6 Digits Process Meter
A6-PR
A6-PR 6 Digits Process Meter has been designed with high accuracy measurement, 6 digit display, flexible I/O functions and communication port for process measuring application.There are also build in 4x External Control Inputs, and can option 4x Relay outputs, 1x Analog output and 1x RS485 (Modbus RTU Mode) communication port with multi-functions such as control, alarm, re-transmission and communication for a wide range of industrial applications.There was designed the zero tracking and stable tracking function in programming level.According to the application, user can set the function to get the suitable reading.
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Network Analyzers
MPR2 Series
Dimensions:DIN4 kVArh, Max, Min: available (available)% THD I: none (none) % THD V: none (none)Harmonics 1-51.: RS-485: none (none)Digital Input:Digital Output:Temperature Input:AOV:RLY: Memory:Current Voltage Unbalances: none (none) X5/X1: none (none)Plug & Meter: available (available) 85-300 VAC/DC: available (available)
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5 Digit Frequency Meter
CM1-F
CM1-F is an economical and simple frequency meter with a 20mm 5-digit LED display, and the display rangecan be set by pressing the button. Anti-interference design, reliable quality, simple installation and operation.At the same time, it has 2 sets of relay output or 1 set of analog output or 1 set of RS485 (Modbus RTU mode) communication ports for selection.The built-in design of the operation buttons can avoid human misoperation and is suitable for various mechanical use.
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Wiring Boxes
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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Analog & Digital Gas Controller
MX 32
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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Soil Moisture Sensor
Modbus RS485
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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Fixed Gas Detectors
MicroSafe 500 & 600 Series
Teledyne Gas & Flame Detection
MicroSafe 500 and 600 Series gas detectors feature a non-intrusive operator interface. Calibration and programming instructions appear in simple intuitive and sequential script on a 16-character backlit display. The transmitter design incorporates extensive fault diagnostics with each condition conveniently identified on the transmitter display.The 500 Series comes standard with a linear 4-20 mA output, one-man remote calibration, self-adjusting zero and span, and LED indicators for fault and calibration status.The 600 Series includes the same features as the 500 with the addition of 3 alarm relays and an RS-485 serial communications port.Electrical Classification - Explosion proofClass I, Div 1, Groups B, C, D
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RS-485 Serial I/O
ADAM-4000/4100 Series
The ADAM-4000/ 4100 series featuring rugged industrial-grade cases are specially designed for reliable operation in harsh environments. Built-in microprocessors independently provide intelligent signal conditioning, analog I/O, digital I/O, data display, and RS-485 communication through Modbus RTU protocols.
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Serial to Relay Interface Boards
Model 2364 OEM
* 114521-11 Board provides 16 low-level form A contacts (SPST).* Provides 8 isolated inputs for CMOS, TTL and 32 Vdc signals.* Multiple relay programming modes switch individual relays or san with single or multi-pole contacts.* Fully IEEE-488.2 and SCPI compliant.* Serial interface header includes RS-232 and RS-485 signals. * GPIB interface header includes GPIB address switch input signals.* Includes 50-pin mating relay connector and serial header connector.* Optional 115750 Terminal Board for easy connections without soldering.* Operates on 12 to 24 Vdc power.* Use an ICS GPIB Connector/Address Switch Assembly to mount a GPIB connector and Address Switch on the rear panel.
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SparkFun USB To RS-485 Converter
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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Serial Transceivers
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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5 Digit Programmable Speed/Velocity Meter
CM1-RL
CM1-RL series provides a simple economic programmable speed/velocity table, it 20.0mm, 5-digit LED display, press the key to set the display range and its anti-jamming design and reliable quality, simple installation, you can meet the needs of general measurement of speed/velocity.This instrument also has 2 group relay outputs, 1 analog output, or 1 groups RS485 (Modbus RTU mode) communication features three a (More features please refer to page description). Operation press the inner design, the more human-no action can be avoided, especially suitable for all kinds of machinery used.
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Serial-to-Daq Card
Model 2307
* 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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Modbus Register Converter
Model 2390
* Converts Modbus Registers and variables for replacement Modbus devices.* Maintain existing software when upgrading Modbus systems.* Provides serial control of Modbus RTU devices from any ASCII source.* User defined Register Conversion Table supports all Modbus RTU devices.* Internal Register Conversion Tables for Watlow F4-to-EZ-ZONE and F4-to-F4T conversion.* Serial ports support RS-232 and 2-wire/4-wire RS-485 signals.* Includes baud rate conversion capability.* Uses SCPI commands to load the Conversion Table and set serial settings.* Small metal case mounts on a DIN rail or on any flat panel.* 239x Table Loader Program uploads the 2390 Register Conversion Table from an Excel csv file.* 239x Serial Keyboard Program provides instant control of the 2390 and Modbus Slave Devices without writing a program.
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GPIB Serial Interface
Model 4894B
* Provides RS-232C single-ended and RS-422/RS-485 differential serial signals. * Expanded baud rate range from 50 to 115,200 baud.* 256 Kbyte RAM buffer for spooling data.* Over 600 Kbyte/second GPIB data transfer rate.*Transparent data transfer.* Programmable replacement for the NI CV interfaces.* 1 U high rack mount kit mounts one or two 4894Bs* Includes US 115 VAC Power Adapter, Manual and Support CD.
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Free Serial-TCP (More Than Just A Device Server)
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 speed. The Serial-TCP program (more than just a Device Server) bridges your existing Serial COM port and TCP/IP without the need for changing existing protocol. It works seamlessly and transparently, just like passive RS232 / RS485 / RS422 converters, repeaters, and hubs, while the difference is that one requires installation of cables and converters with limited distance; and the other simply makes use of the existing computers and networks with an unlimited transmission distance
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Mezzanine Module
RS485-MOD2
Curtiss-Wright Defense Solutions
The RS485-MOD2 is a front panel mezzanine module designed to provide serial I/O functionality to Curtiss-Wright FPGA-based processing PMC and XMC modules including the PMC-FPGA03, PMC-FPGA05 and XMC-FPGA05D. This RS485 I/O module provides 33 channels of EIA-485 or EIA-422B serial I/O. Each channel is configured as an input or output. The serial protocol and timing are handled by the host FPGA.
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RS232 Null-Modem Cable, DB-9 Female to DB-9 Female, 4m
182238-04
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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Digital Panel Meter
Inbuilt Selector SwitchHigh resolution reading with autoscalingSuitable for industrial panels, gen-sets, solar, pump control panels, etc.Optional RS485 for data collectionOptional easy interface to PLC through modbus protocol
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Digital Pressure Meter
ZET 7012-A-VER.1
Digital pressure meter ZET 7012-A in BP4-1 casing is used for fast and simple absolute pressure measurements and measured values data transfer in digital format via RS-485 or 4-20 mA interface.
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RS485 Null-Modem Cable, DB-9 Female to DB-9 Female, 2m
183283-02
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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USB / RS232 / RS485 / RS422 Opto Isolators
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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IRIG B to NTP/SNTP Converter
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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RS-485/RS-422 Fault Protected
Renesas' fault protected RS-485/RS-422 transceivers, also known as overvoltage protected transceivers (OVP), offer robust fault tolerance and high performance.
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Programmable Data Logger
HD32MT.1
Programmable datalogger able to capture and store the values measured by a series of sensors connected to its inputs. 8 analoge input, 8 digitale input, 2 puls input, potential free contacts, alarming. Programmable through software. RS485, RS232.
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RS485 Null-Modem Cable, DB-9 Female to DB-9 Female, 1m
183283-01
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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Data Logger with GSM/GPRS Module
HD33M-MB.2
GSM/GPRS data logger. RS485 MODBUS-RTU input, additional contact input for rain gauge. Great to combine with HD52.3D and HD51.3D series anemometers!
