Rs 485 Rs 485

RS422-485简介.ppt [兼容模式]

rs‐485（eia‐485标准）是rs‐422的改进，因为它增加了设备的个数， 从从10个增加到 32个 ， 同时定义了在最大设备个数情况下的电气特性 ， 以 保证足够的信号电压。 rs‐485是rs‐422的超集，因此所有的rs‐422设备 可以被rs‐485控制。

MAX3483/MAX3485/MAX3486/MAX3488/MAX3490/MAX3491 …

RS-485 and RS-422 communication. Each part contains one driver and one receiver. The MAX3483 and MAX3488 feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486 transmits up to 2 ...

  Max3483 max3485 max3486 max3488 max3490, Max3483, Max3485, Max3486, Max3488, Max3490

MICROLOGIX PROGRAMMABLE CONTROLLERS - Rockwell …

Each controller supports a built-in RS-232/RS-485 combo port for serial and networked communication and a second built-in EtherNet/I P port, which supports Ethernet peer-to-peer messaging. An embedded LCD screen lets you monitor controller and I/O status, as well as make changes to bit and integer data. Advantages for the MicroLogix 1100 ...

  Rockwell, Micrologix

ADM485 5 V Low Power EIA RS-485 Transceiver Data Sheet ...

and complies with EIA standards RS-485 and RS-422. The part contains a differential line driver and a differential line receiver. Both the driver and the receiver can be enabled independently. When disabled, the outputs are three-stated. The ADM485 operates from a single 5 V power supply. Excessive power dissipation caused by bus contention or by

RS-485 Wiring Guide - go4b.com

RS-485 transmits digital information between multiple locations. Data rates can be up to, and sometimes greater than, 10Mbps. RS-485 is designed to transmit this information over significant lengths, and 1000 meters are well within its capability. The distance and the data rate with which RS-485 can be successfully used depend a great deal on ...

  Guide, Wiring, Rs 485 wiring guide

NI Serial Hardware Specifications and Features Guide ...

RS-485 Transceiver Control RS-485 Socketed Bias Resistors RS-485 Program-matically Controlled Bias Resistors RS-232 Transceiver State RS-232 DTE/DCE Transceiver Control Hardware Implemented Flow Control RTS/ CTS DTR/ DSR Xon/ Xoff PCI/NI PCIe/PXI/ NIPXIe-8430, PCI/PXI-8432 PCI/NI PCIe/PXI/ NI PXIe-8431 eight port and NI PXIe/ NI PCIe-8431 16 port

  Guide, Feature, Specification, Specifications and features guide