Hi All,
I have a Homann V4.1 Mod-IO board that I have swapped with an existing (V2.2) board in my pendant (dead DOUT1), but am having some trouble getting the communication link to work properly.
I get a flashing left green light (input to Mod-IO) but am not getting any flashing activity on the left red LED (output). Indeed, I am reading info from Mach on the LCD, but can get no activity out of the Mod-IO card to Mach. I have the ID set to 6, 57,600, 8-1-n. All settings on computer and Mod-IO look to be in sync. Sometimes I get a flashing red light (right side near selector switch) but other times it is off, but still no output from the unit.
When I open the Modbus Status & Control dialog, input and output slave address is set to 6, start reg is 1150 and 1040 respectively, and MODIO Modbus card checked, click on CONFIG button I get “No Connection to Homann Board”. No matter what I do I can’t get this to show a connection. I don’t recall having any such difficulty with the initial unit.
Any ideas that might propel me over this patch of dead-water??
Thanks a bunch for any input!!
David