摘要
介绍PLC与触点继电器的综合使用情况 ,说明PLC控制软接点与触点继电器配合使用的优越性 ,提出PLC控制软接点并不能完全取代所有继电器触点 ,两者综合使用 。
This article is to give an account of the combining use of PLC and relay system , it will views the advantage of combined PLC and relay system and states that PLC' soft interface can't replace relay contacts, and combination operation of PLC and relay will be more reliable for control system.
出处
《港口装卸》
2003年第2期31-32,共2页
Port Operation
