11 discussions on PolyTech Forum about the Siemens S7-300: what owners asked, what went wrong, and what fixed it.
Hi Guys,this has got to be an easy one to answer, but I simply can't get it towork.I've got a D/A card set up to output 4-20mA (I think) and I'm tryingto work out how to wire it up with a resistor (again I think) so thatI can confirm that...
Let's get some opinions, which PLC all around offers the best PLC's, best price, performance and reliability in the following ranges?1 Mini-Micro2 Expandable Shoe box3 Midrange4 Hi End
Hi all! Has anyone had any good/bad experiences using the Modbus host linkto a Rotork Pakscan system?Our latest project is using iFIX SCADA, talking Ethernet to a Siemens S7-300PLC, talking Modbus RTU to a Pakscan IIS master station and...
I need small PLC with at least 8 DO and 6 DI, to have serialcommunication RS485 (or RS232) and to have ambient operatingtemp range -20...+70 degC. If anyone knows pls let me know whois manufacturing such PLC.Thank you,Zdenko
I posted this over in S.E.C. but thought I would post here also. Does anyone know of a utility to convert a Siemens S7-200 program over to a S7-300? Apparently there is some formatting or other differences between the two.
I am looking for an IO system to link with a DCS vis a MB-RTU/TCP.The IO from the DCS is EXTRAMLY costly and I'd like to use something more reasonable in price.I have some 200 AI and some 120 AO.The remote IO does not need to perform ANY...