描述
加强PLC联网通信的能力,是PLC技术进步的潮流。PLC的联网通信有两类:一类是PLC之间联网通信,各PLC生产厂家都有自己的专有联网手段;另一类是PLC与计算机之间的联网通信,一般PLC都有专用通信模块与计算机通信。为了加强联网通信能力,PLC生产厂家之间也在协商制订通用的通信标准,以构成更大的网络系统,PLC已成为集散控制系统(DCS)不可缺少的重要组成部分。
Organon Teknika MDA 180 Multi-Channel Discrete Analyzer
Harris TV 30L Television Transmitter FMT32669-001
Sensidyne Combustible and Toxic Gas Detection System +
Lepel LUP12-50/30 Induction Heater Power Supply
Pryor Pryormark 35 Floor Standing Roll Marking Machine
SVG MICRASCAN II DUV STEPPER SCANNER CONTROL UNIT
Leco MAC-500 Control & Furnace Proximate Analyzer Unit
Allen Datagraph DFS DF-1600 Digital Finishing System
Fore Systems ForeRunner ASX-200BX Broadband Switch
ThermAtrace Thermal Line Scanner Model 12-750
Beckman TY40 Rotor 12×13.5mL 40,000RPM
LKB 2088 Ultrotome 3-Piece System
Molecular Dynamics 425S PhosphorImager
Motorola Type MC1XXX Chassis w/ MVME & Simpact