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RS485

Serial communication line supporting 32 devices.

See Also: Serial Communications, I2C, RS232, RS422


Showing results: 391 - 405 of 441 items found.

  • GPIB Instrument Control Device

    NI

    GPIB Instrument Control Devices offer IEEE 488 controllers that are compatible with ExpressCard, PMC, PCMCIA, PCIe, PCI, and USB slots as well as Ethernet, RS485, RS422, and RS232 ports. Some models can control multiple GPIB devices, and others offer sustained data transfer rates and no microprocessor interruption in data transfers. GPIB Instrument Control Devices include a license for the NI-488.2 driver software, providing maximum reliability for connecting to third-party instruments via GPIB. The devices are completely IEEE 488.2 compatible, have industry-standard transfer rates, and offer easy system configuration through NI software.

  • 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.

  • Multi-Function Power Transducer

    TD2418B - Chitai Electronic Corporation

    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.

  • - RS-422/485 DIN Rail Mounted Lightning/Surge Protector

    Model 8022NX - Telebyte, Inc.

    FEATURES: Fast Response; Automatic Recovery; Up To 20 MBPS Data Rate; DIN Rail Mounted; Full Duplex; Triple Stage Protection. The Model 8022NX is a DIN Rail mounted surge suppressor for 4-wire RS-422 or RS-485 circuits used to protect factory data networks, or, any network that wants to avail itself of the DIN Rail packaging concept. The Model 8022NX provides common-mode (line to ground) surge protection and differential mode (line to line) protection for balanced networks. All the inputs, outputs and ground connections are via screw terminals located on the top surface of the device.

  • Dual Channel Multi-Band FM Tracking/Data Receiver In Modular Style Housing

    LS-27-B - Lumistar Inc.

    The Lumistar LS-27-B Modular Dual Channel Tri-Band Tracking and Data Receiver is Lumistar’s third generation of modular high performance FM Receivers. This wideband designs supports one or two independent channels of PCM with data rates up to 20Mbps. The unit includes both an optional FM demodulated output for PCM data, and standard programmable AM/linear AGC outputs for auto-tracking receivers. The design offers 8 IF Bandwidths and 8 Video Filters per channel for each receiver.AC coupling with a low pass filter is employed to ensure a high quality data link with long strings of NRZ-L ones or zeroes. The unit provides a software selectable 10 MHz reference I/O port forlocking local oscillators to a high precision external source or to arrange multiple units in a master/slave arrangement. The receiver’s control and status is achieved via Ethernet, USB or auto-switched RS-232 (or “4-wire” RS-485 in place of 232). When utilizing the RS-422 interface, multi-drop configurations can be accommodated.

  • Microprocessor Multifunction TRMS Power Meter + Harmonics Analyzer

    8100 C - Kusam Electrical Industries Limited

    INPUT :• Input Voltage Range :Voltage: 55 ~ 300V AC, or 300 ~ 600V AC, 45 ~ 65Hz.P.T. Ratio Programmable upto 9999 / KV.• Input Voltage Over Range :Voltage : 200 % Continuous, 300 % of rating for 10 sec.• Input Current Range :Current : 110 % of rating. 0-1A or 0 - 5AC.T. Ratio programmable upto 9999 / 5A.Input Current Over Range:Current : 400 % Continuous, 2000 % of rating for 10 Sec.• Input Frequency : 45 Hz ~ 70 Hz.• Input Burden :Voltage 0.25 VA / Unit, Current 0.25VA / Unit, at 50 / 60HzOUTPUTDC Current: 0 20 m A DCLoad resistance drive: output drive 10 V DC maximum.DC Voltage: 0 -10 V DCLoad resistance drive: output drive 5mA maximumOutput Protection: No damage even if output is Open or Short Circuit.Output Response Time : £ 1 Sec.Digital Output : RS485 Output, Isolate Type with MODBUS RTU mode., 4800, 9600,19200Baud Rate, User Selectable.

  • SEA CLIP™ Sensor & Aqua MER™ Meter

    The Swain Meter Company

    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.

  • Multifunctional Meter

    AEM-DR - Chuan Sheng Electronics Co., Ltd.

    Provide high accuracy measurement, display and remote communication of single phase & three phase parameters (V, A, P, Q, S, PF, Hz, Kwh). Multicircuit design and relay output modular expansion design decrease the overall cost and make the functionality more flexible. All monitored data is available via a RS485 serial , for the needs in energy management, alarming, and remote controlling. Embedded flash memory for Data-Logging can avoid any data missing once the communication is interrupted. Moreover, its ultra compact size DIN-rail mounting makes itself mountable in virtually any panel, enclosure or indoor Cabinet.

  • Multifunctional Meter

    CPM-80 - Chuan Sheng Electronics Co., Ltd.

    CPM-80 multifunction power analyzer provide high accuracy single phase and three-phase energy measuring and displaying, energy accumulating, power quality analysis, data logging and data communication. CPM-80 series meters are able to measure bidirectional, four quadrants kWh and kVarh. It provides maximum/minimum records for power usage and power demand parameters. Hardware standard built in a RS485 Modbus communication port , 4 Digital inputs, 2 Relay outputs, LCM and 2MB flash for data-logging. In addition , also provide TOU , voltage and current THD, harmonics up to the 63rd and auto wiring change via software .

  • Pressure Temperature Sensors

    Teledyne Marine Cormon

    The PT sensor has been designed to the highest industry standards to provide customers with dependable and accurate measurement of temperature (+/- 0.50C) and pressure (0.025% FSD) within a high integrity mechanical package. The sensor is available in both 10k and 15k psi configurations and incorporates true dual redundant sensors and electronics. Combined with the addition of a tertiary barrier between the process fluid and sea water, operators and users can be assured of high integrity data with a design life of >25 years. The unit offers operators flexible communications interfaces as standard covering CANbus (CiA443, SIIS Level 2), MODbus (RS485) or 4-20mA outputs.

  • Wide-range Output Programmable DC Power Supplies

    PPA1500 Series - Twintex Electronics Co., Ltd

    PPA series are high precision programmable DC power supply with auto range output, output power rated 400W, 800W and 1500W, maximum rated voltage up to 1200V. PPA series offer the widest range of output voltage and current at its rated power. One PPA power supply can cover output range of multiple power supplies. It offers powerful programming function through RS232 and RS485 intefaces, supporting SCPI and Modbus-RTU commands. And it is designed to meet both bench-top and integrated system applications. It is the most economical choice of power source to facilitate auto test and auto control.

  • Digital Panel Meter

    VAW - Chuan Sheng Electronics Co., Ltd.

    VAW DC Multifunction Power Meter provide high accuracy measurement, display and communication of DC voltage, Current, Power, Energy(import / export), and Run Hour. They are also building in 4 Relay outputs, 1 Analogue output, 1 Pulse output , 2External Control Inputs and 1 RS485(Modbus RTU Mode) interface with versatile functions such as remote I/O, alarm and communication for DC power applications like as solar, wind power system or portable electronic device consumption testing.For the power saving, VAW has built in an innovation timer to switch down the light and power of LED. It makes sense to build the meter in a green power system.

  • 6 Digit Weighing Controller

    A6-SG - Chuan Sheng Electronics Co., Ltd.

    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.

  • 4 2/3 Digital Resistance Meter

    CS2-RS - Chuan Sheng Electronics Co., Ltd.

    CS2-RS Resistance Indicator has been designed with high accuracy measurement, display and communication of Ohm (2 wire) as like as Coil of motor or transformer.The meter supports Field Calibration function. It can be calibrated with sensor (Resistance) to meet machinery structure.We build flexible function as like as 3 bank (for multi-range scaling and set point) and 3 external control inputs meet to various testing equipment inquiry.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 machinery and testing equipments applications.

  • 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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