Inquiry (采购产品): PLC inquiry Hi, I am looking for a control unit with the following functionality. - accepts voltage signal (signal #1, 0~10VDC) and compare it with another external voltage signal (signal #2) (maybe every 0.5sec) - gives out voltage signal (signal #3) after adjustment : here the adjustment is done as follows 1. if signal #2 is larger than signal #1 by more than 0.1VDC, signal #3 is to be reduced by 0.1VDC after each comparison. 2. if signal #2 is smaller than signal #1 by more than 0.1VDC, signal #3 is to be increased by 0.1VDC after each comparison. 3. maintains the same level of signal #3 if the differnce between signal #1 and #2 is less than 0.1VDC. 4. the comparison and adjustment shall be done continuously as far as signal #1 is higher than 0.3VDC. Let me know if you have something simple to achieve this. Thanking you, **** Hidden Message ***** Doohan Lee 95054 USA Company: Malema E-mail: doohan@malema.com **** Hidden Message ***** doohan@malema.com