1771-OFE2
PLC控制系统的安装与调试，涉及到各项工作，并且只能按序进行，一环紧扣一环，稍有不慎都将导致调试失败，不但延误工期，甚至会损坏设备。本文介绍了在现场实践中总结出的PLC控制系统的安装与调试技术经验，并对现场经常出现的安装、调试相关问题，提出探讨意见和解决方案。
系统的安装与调试
合理安排系统安装与调试程序，是确保高效优质地完成安装与调试任务的关键。经过现场检验并进一步修改后的总程序如图所示。
前期技术准备
系统安装调试前的技术准备工作越充分，安装与调试就会越顺利。前期技术准备工作包括下列内容：
熟悉PC随机技术资料、原文资料，深入理解其性能、功能及各种操作要求，制订操作规程。
深入了解设计资料、对系统工艺流程，特别是工艺对各生产设备的控制要求要有全面的了解，在此基础上，按子系统绘制工艺流。程联锁图、系统功能图、系统运行逻辑框图、这将有助于对系统运行逻辑的深刻理解，是前期技术准备的重要环节。
熟悉各工艺设备的性能、设计与安装情况，特别是各设备的控制与动力接线图，并与实物相对照，以及时发现错误并纠正。
在全面了解设计方案与PC技术资料的基础上，列出PC输入输出点号表(包括内部线圈一览表，I/O所在位置，对应设备及各I/O点功能)。
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