![kepserverex device is not responding kepserverex device is not responding](https://betanews.com/wp-content/uploads/2015/10/Task-manager-300x240.jpg)
If anyone has experience with this and has an idea of what might be wrong, I'd appreciate it a ton.
#KEPSERVEREX DEVICE IS NOT RESPONDING SERIAL#
The ID I'm using in KEPServer is SERIAL 1 and that's mapped to COM1 on the PV+, and that's about the only possible problem I can think of. It seems like KEPServer is properly loaded on the PV+ and it has roughly the right settings, but some setting I don't understand is causing the communications to fail.
#KEPSERVEREX DEVICE IS NOT RESPONDING DRIVER#
All the basic settings in Simply Modbus (address, baudrate, parity, address, data bits, stop bits) match the KEPServer ones, with the only difference being that I switched the Micro850 to RS-485 mode so it would work with the adapter.īased on all this, I'm guessing I have a driver problem. These packets were read correctly, so the Micro850 isn't having problems with Modbus. I had an RS-485 to USB adapter lying around, so I changed the Micro850 from RS-232 to RS-485, connected it through the adapter to my computer, and used Simply Modbus to send it packets.
![kepserverex device is not responding kepserverex device is not responding](https://docplayer.net/docs-images/42/8394251/images/page_17.jpg)
![kepserverex device is not responding kepserverex device is not responding](https://community.ptc.com/legacyfs/online/thingworx/6887_NotConnect.png)
I'm also confident that the Micro850 is accessible. Since the PV+ is telling me that it's loading the Modbus RTU Serial device driver, my assumption is that it's correctly linked to the KEPServer project which is telling it to use that driver for communications. I'm fairly confident that the OPC server itself is configured properly, because the tags I made in KEPServer all showed up in the tag browser in FTView Studio, and when I initially run my application on the PV+ I get an information banner saying "Starting Modbus RTU Serial device driver" "Modbus RTU Serial Device Drive V5.7.336.0". Whenever I try to write to a tag, it gives me an error saying "Unable to write value 'X' to item '", where X and Y are the values being written and the tags. I've tried configuring a project following the "Modbus Applications" document by Rockwell, but the runtime on the PV+ doesn't work. Right now I have the Micro850 connected to the PV+ with a 1761-CBL-PM02 and a null modem adapter. The response I got suggested that I use KEPServer on the PV+ to communicate with the PLC. I posted a question a few days ago about using a PanelView Plus with an AB Micro850 PLC.