We are experiencing some communication errors with a couple of our PanelMates in our plant and can't seem to find a way to clear them out. Some background on our network.. We have 7 Modicon compact 984 units with 6 Cutler Hammer PanelMates all connected through Modbus Plus. The PanelMates are 1700 color flat screens. The communication problem is occuring only at one section where we have two PanelMates side by side in a cabinet. Because of operator requests these PanelMates were stationed side by side and their controls are identical. The only thing different are the node addresses. You can clear the errors by taking one of the two PanelMates offline. We have ran new conduit, new cable; In fact, we now have four cables instead of the original two with a 15' jumper between them. We also have a repeater installed before the run to the PanelMates.
Even though these are flat screens, could it be possible that having the PanelMates so close together, that this could be causing the problems?
Thanks!
Randall
Even though these are flat screens, could it be possible that having the PanelMates so close together, that this could be causing the problems?
Thanks!
Randall