5/1/2017 5:12 AM | |
Posts: 87 Rating: (0) |
Hi, I designed a system where A Analog Output of Weighing Indicator CAS CI-5200A connected to a Analog Input of S7-1200 Module. The schema is attached. The problem is the result of Analog Input reading is unstable. When I connected the GROUND terminal in Power Supply SITOP and GROUND terminal on body of Weighing Indicator to CHASSIS GROUND (EARTH), the reading of Analog Input is 'more' stable but still changing in lower value. I have not connected GND terminal on CPU214 to anywhere. The terminal 0- on Analog Input is not connected anywhere too (Floating). It should connected to Ground? Which Ground should I connect? Please someone give me advice. Thank you. BR, Sasongko AttachmentSchema.pdf (362 Downloads) |