Good day all,
Problem: ‘C’ coils used in Koyo PLC’s (D250) do not allow Ignition to write to them. The coil addresses are clean, meaning the PLC is not over writing them in ladder logic anywhere. Further, the ‘Y ‘address can be written to, by opening up the SQL tag browser and checking the value box. However if you try that with a ‘C’ address, it will stay selected for a moment, then uncheck itself. Anyone have any idea what’s going on?