描述
就地总线或现场总线-般由双绞线组成的数据通信网络,由于其连接的设备是与生产过程直接发生联系的一次元件或控制设备,所以工作环境恶劣,故障率高,容易受到检修人员的误动而影响生产过程。另外,总线本身也会因种种原因造成通信故障。
Omron STI MiniSafe MS4300B-2 Safety Light Curtain Set
Motorola 3520 Standalone DSU MVME946C Chassis MVME 712B
Adtran TSU600 Modular 1/FT1 Multiplexer W/ Dual FXO Mod
GE Fanuc QPI31200E2P Total Control MONO 9” QuickPanel
L-3 Communications BSM720-PC Bit Synchronizer Board
Bertan 210-10N HV Power Supply WORKS GUARANTEED 30DAYS!
DataCube MaxBox 20-Slot, 6 UVME Card Cage w/ 750W Power
Quanta CG Character Generator QCG-304 & QuantaFont
Heller 715A Electronic Component Axial Lead Former
Adtran TSU 600e Modular 1/FT1 Multiplexer PN: 1202076L1