摘要
传输距离是影响通讯信号质量的关键因素,信号质量和传输距离二者存在矛盾。随着石油化工企业生产规模不断扩大,控制要求高度集中,信息化水平也要求越来越高,传统通讯电缆传输距离短,抗干扰能力差,而光缆传输克服电缆缺点,应用日益广泛。本文基于杭州优稳DCS系统,探讨利用MODBUS_TCP协议解决远距离通讯信号衰减的问题,为长距离通讯提供了一种有效的解决方案。
Transmission distance is a key factor influencing the quality of communication signals, signal quality and distance between conflicts. With the expanding petrochemical production, control is highly centralized, information level will require increasingly high, the traditional cable transmission distance short, anti-jamming ability, and optical transmission over cable faults, is widely used. Hangzhou excellent stability, based on DCS system, using MODBUS_TCP protocols solve the problem of distance communication signal attenuation, provided an effective solution for long distance communications.
出处
《仪器仪表用户》
2017年第2期27-30,10,共5页
Instrumentation
