JMColombo

Hi there PLC community, I wanted to get in touch with the forum and see if someone can give me a hand or if this happened to anyone: I have an Omron CP1L PLC Master and a CP1L PLC Slave that are communicating through 2 CP1W CIF12 Modules on each PLC via the internal copper cores of the wire ropes that carry the cradle in a BMU (where the PLC Slave is located). Both comms modules are communicating fine and they’re yellow lights are solid and bright, but what’s happening is that when I press a button, any function button, to trigger a function, thus triggering one of the outputs of the PLC (like Hoist Up), at random times, the comms modules loose communication and they’re light go dim for a second or two. Now the big issue with this is that once the Comms modules lights go dim, the PLCs remember / keep on executing the last function before loosing Comms until they regain Comms: this can be quite hairy as a hoist might be lowering and will keep on lowering even if the button has been released. From all the testings and different scenarios I did I believe the issue is that the distance they have to communicate through is quite long (roughly 220mts), as this problem is solved if I connect the modules with a 10mts cable. Has anyone come across a similar scenario before? Would anyone know of any parameter, dip switch or anything that I can set to basically amplify the signal or make it stronger or to allow for very long communications? Thank you very much!

Hey there! I’m new to the forum. I have tried searching for this topic, but I couldn’t find much, so here it goes: Some weeks back I was trying to log into an Omron CJ1M to modify a program in a machine. I usually use CP1L PLCs and set them up to execute in BCD. When I tried to connect to this one though, it showed me a question box saying (I have tried and tried to upload an image, but the forum is not letting me as it says I’m exceeding the allowed mbs, even though I reduced the photo to 90kb 🙄): “ — Timer / Counter execution is different between project and connected PLC: Project: BCD PLC: Binary Select one to match the setting: download, upload, work offline? — “ Has anyone come across this before??? I pressed work offline first, which didn’t do anything, but later I pressed download, assuming that CX-Programmer was going to download the program to my laptop, but the reverse happened: as I didn’t have anything opened in my laptop, the program got completely wiped out without any notice or warning… has anyone come across an issue like this before??? And I don’t have a backup of the program as I was in the process of making a backup… 😳 Many thanks in advance! 😁