S7-1200中实现PID控制
概述【一】PID控制PID功能用于对闭环过程进行控制。PID控制适用于温度、压力和流量等物理量，是工业现场中应用最为广泛的一种控制方式，其原理是对被控对象设定一个给定值然后将实际值测量出来，并与给定值比较，将其差值送入PID控制器，PID控制器按照一定的运算规律，计算出结果，即为输出值，送到执行器进行调节，其中的P、I和D指的是比例、积分和微分，是一种闭环控制算法。通过这些参数，可以使被控对象追随给定值变化并使系统达到稳定，自动消除各种干扰对控制过程的影响。【一】S7-1200的PID控制S7-1200 CPU提供了PID控制器回路数量受到CPU的工作内存及支持DB块数量限制。严格上说并没有限制具体数量，但实际应用推荐客户不要超过16路PID回路。可同时进行回路控制，用户可手动调试参数，也可使用自整定功能，提供了两种自整定方式由PID控制器自动调试参数。另外STEP7 Basic还提供了调试面板，用户可以直观的了解控制器及被控对象的状态。PID控制器功能主要依靠三部分实现，循环中断块，PID指令块，工艺对象背景数据块。用户在调用PID指令块时需要定义其背景数据块，而此背景数据块需要在工艺对象中添加，称为工艺对象背景数据块。PID指令块与其相对应的的工艺对象背景数据块组合使用，形成完整的PID控制器。自软件 博途V13 起，固件为 4.0 或更高版本的 S7-1200，可以使用 PID_Compact V2.2 指令。S7-1200 在 V4.0 以上，博途 V13 SP1 以上，使用 S7-PLCSIM V13 SP1 可以仿真 PLC 程序，但不支持工艺功能（高速计数器、运动控制、PID 调节）的仿真。（1）下表显示了 PID_Compact 的每个版本可用于哪种 CPU：
CPUFWPID_Compact
S7-1200 ≥ V4.xV2.2
V1.2
S7-1200≥ V3.xV1.2
V1.1
S7-1200≥ V2.xV1.2
V1.1
S7-1200≥ V1.xV1.0
（2）PID_Compact V2.0 工艺对象典型 CPU 处理时间（取决于 CPU 类型）：
CPU典型 CPU 处理时间 (PID_Compact V2.x)
CPU 1211C ≥ V4.0300 µs
CPU 1215C ≥ V4.0300 µs
CPU 1217C ≥ V4.0300 µs
（3）PID_Compact V2.0 工艺对象背景数据块的存储器要求：
分类PID_Compact V2.x 背景数据块的存储器要求
装载存储器要求约 12000 个字节
总工作存储器要求788 个字节
保持性工作存储器要求44 个字节
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/4f37a9081b4140589eefad176f512861~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=n0L%2F71tBM2H94Dy5ToaLRQy0cl4%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/75659aa175824a7b86762bce06519a11~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=cm99H3Y5yqCuJ%2FiWYYmZ8hewV38%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/e096b4366a164a01b35c7312c2479810~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=G3BbWcZPyhSQQ7Ohee0vTJzV6IY%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/f82121caf54e4c20be033e0cb114ec84~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=7aKqHiWt9urzbOd9HPCitJeSpyA%3D
模拟量闭环控制系统-PID控制的特点：不需要被控对象的数学模型，结构简单容易实现，使用方便有较强的灵活性和适应性。https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/619dabee82574fd48288a0d3bc428b8f~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=if%2B9whpOQLfwWrC3OVKID500pt8%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/7a50d5ce870640a28e7ed381ab98c18f~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=JNyHUE2gC36YV8xUVg47SAeR0jE%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/c13951f4cec34fe4a501298279664a47~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=KlS0uSW%2Bx1gtPdJVDr2a87VNCTA%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/e6da40f317df4e1a903873ab356fb07d~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=iLUdmSVMds3akjYxgRDBs3mbhzo%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/0d5328b1e25442aab0d2857c2531a8ed~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=fm2QYW%2FWkyhYnCqXygbu9xUnD9o%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/ea0d18151800461aa7f131eaa33179ce~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=0KWk14PjxqT9%2FIfKZshUEQpa7y4%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/859999fe65da4fb9ab9e6f1be51be4a5~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=kGI%2B1%2BJk3UJyDfcPOFUY8NO6p5Q%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/633bdd44f0f4426e997fb856188894c4~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=ek%2BqSVbv4HyJCaff%2B24gXZBCJA8%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/aafd6a5c6cfd468b97e59e6ce61c5dea~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=fQKqEOdd84H7WfHQDK5sNebaCe8%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/e4d2c161c69142659ab6d5bedd59ae16~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=72xWGvyBzWboZmnPqeDuC2xI6ic%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/23bd2160aa7a46a981ca98828217b863~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=TH0laci3ON21v4OsSmkFFE3Isfg%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/c620cc7600e347eea8bead5a8b877379~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=lX2TfpmKbHfctptj5QF7Fqe17QU%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/e63e9a18461f4475adc7701e184708b9~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=SLQH%2FX5k9S7H8KPwoKZZqEtYzIs%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/acfbce6ba7cd47c1acc5344d9626aa3a~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=KkEH%2FKqwYzIF1EcOB2sKaDiqu3U%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/86dcdb93398e4d40b6d66d9f21ae2e4c~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=pm2WcaHBb8BMgGtthI3aIRtL4gg%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/e47af01d21c3491f833036b810cecd4c~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=ejAZYUnaP9fsuSDKXAH0WM0F8xk%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/474bd14ef21c4a7183dc65b100f83f47~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=VoCCSqlnkJfKBUYIriySxKP8Fn4%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/c77c5a9d152e4a4ab14e5d084a080410~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=vfXiYn0c5WaX2ObKkPeGboQTkw8%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/050a67e6a2ed4128aa94eab8c4b4e3f0~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=lJfp3D2hK5ixUJihtwHIm%2BRr5qU%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/a3010d92a01b4961ae0a2a4822d2642e~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=3Cbgr8dkOAPrPuNIbELVixTZMhs%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/5f848f419e394aca97bba82524f6dce4~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=eJmrEGoJpO6bAKtZ21T%2FQotfNsU%3D
用调试窗口整定PID控制器-调试窗口的功能1、使用“首次启动自调节”功能优化控制器2、使用“运行中自调节”功能优化控制器，可以实现最佳调节3、用于趋势视图监视当前的闭环控制4、通过手动设置控制器的输出值来测试过程https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/269b5f2139114280a5bcae6db3a86a73~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=m4As2IqiYEihcuaghTMr%2FWLgREU%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/cab2450c31d048fdab1453f74a09af6a~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=fS0F8AKArcqeJR%2FKrlE8wSVDfDE%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/42ac71f859fb49cb858622380bcfd3a7~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=XvtoDWAMsUytI3tOgbtjbcEUmko%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/f7749e707e344df5ba388f38c91c2244~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=RWzkFOv1efLm%2Ft5rIJmACt8m3GM%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/d68a36209b72455e955effc6428b3d76~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=EjVnQxmGiPjNyVAiCb38gIR8uxM%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/194b7f1fc7c04056b56716dad58c668c~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=4UViNQGNpITYKyl%2By0vsJ9FBu6o%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/c931bd88dec14fed83bafc19b57d5bc1~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=V96ggOB5CcopuUviYmvb5nGcLaY%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/dc62e34bca6b463a98afbdf99ae8ce7f~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=q7Ps69yPvBbPO2CtS3df3hsQN4A%3D
https://p3-sign.toutiaoimg.com/tos-cn-i-qvj2lq49k0/425197de358a4aeca69543b0bb7eb0f6~tplv-tt-shrink:640:0.image?traceid=20230501112641F78049B55C66B8115988&x-expires=2147483647&x-signature=MQz0jDDgyEZYvS3D9Jfm8gag%2Fyk%3D
路过混个脸熟，顺便为优质内容打 call～ 原来还有这种操作，长见识了！ 画面感太强了，仿佛身临其境！ 这波反向操作，我属实没想到！ 谁懂啊！真的被戳中笑点 / 泪点了 笑不活了，评论区比正文还精彩
已转发给朋友，一起快乐一下 这评论区卧虎藏龙，个个都是人才！ 不请自来，就想夸一句：太顶了！ 学到了学到了，这波分享太实用啦！
页:
[1]
2