西门子200，的模拟量输入怎么接远传压力表
现有西门子200和温度模块4rtd，怎么做pid温度控制试验。
做类似的验证，需要晶体管输出型plc。
官方有视频及资料下载，你边看边做就可以了。
https://www.ad.siemens.com.cn/productportal/prods/s7-200-portal/micropower2013/smart%20sms/014.html
https://www.ad.siemens.com.cn/service/elearning/Course/386.html
https://www.ad.siemens.com.cn/service/elearning/Course/388.html
https://www.ad.siemens.com.cn/service/elearning/Course/390.html
https://www.ad.siemens.com.cn/service/elearning/Course/392.html
https://www.ad.siemens.com.cn/service/elearning/Course/394.html
https://www.ad.siemens.com.cn/service/elearning/Course/396.html