DoktorPsych0

Hello all, My company is wanting to finally upgrade their test stand after it's fallen into complete disrepair. The system would use a Wago 750-880 and probably around 30 i/o cards. My questions are the following: What are the logging capablilities of the 880 plcs (as in how much can I log before I'd have to move it/ destroy it)? How do I move it from the plc to a PC running an HMI to both format it and print out a final test report? What free/near-free HMI software do you recommend that can both display the current values, trending, ect and take the log, format it then allow to print? If there isn't a single program capable to do this, what combination would work? They are also wanting to be able to have customers log in remotely and see the test values so, if possible, the program would be able to do that as well. I'm not too familiar with HMI software as I've always used the 841 and its internal webserver but the amount of information was always too big so we had to hand write most everything. As you can tell, I have a pretty shoestring budget once I get past the absolute basics of plc and cards hence the free/near-free requirement. Thank you in advance.

Hi, I have a project that my boss is wanting a ramp function and I haven't found documentation in the manuals and elsewhere to do it correctly with TIA Portal that is still compatible with the 300 series. I ask here for either somewhere I missed or an example from any of you. My other questions are about this issue: The system, as part of the shut down process, is supposed to turn an output (Speed setpoint) to 0, wait for amperage to go to 0 and wait some time to be sure they do not hit another button, before bringing the speed setpoint back up to 50% until the voltage goes down to 100 amps. Both Voltage and Amperage are inputs. I wish to ask what the most efficient ways to do this are since I'm currently looking for amps to be 0 twice in the same ladder not to mention various other ways to get this done that probably can be cleaned up much better. Thank you in advance and if you need more information I will provide what I can.