9/12/2017 2:46 PM | |
Posts: 1 Rating: (0) |
Hello, Im planning to use module (6ES7 331-7PF01-0AB0) to read PT100 signal and module (6ES7 331-7KF02-0AB0) to read sensors signals 4-20ma. RTDs and sensors are mounted in hazardous area we are to use zener barrier between sensors and input modules where sensor or RTD is connected to one end of the zener barrier and module is connected to the other end. Zener barrier will be Pepperl & Fuchs - Data sheet attached. I had read in previous topics some people facing problems when using zener barriers with some analog modules - topic below: 1- https://support.industry.siemens.com/tf/ww/en/posts/6es7-331-7pf01-0ab0-rtd-problems-with-resistance/118639/?page=0&pageSize=10 2- https://support.industry.siemens.com/tf/ww/en/posts/connecting-a-pt100-via-zener-barrier-to-an-analog-input-card/97019/?page=0&pageSize=10 Will it work ? Attachmentpepperl & Fuchs - Zener Barriers.pdf (339 Downloads) |
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