I am working on a project to communicate with a MODBUS ASCII device, but having trouble with accessing registers over 255. I understand if I want to access registers 1-5, the transmission is “:010300000004F8”. I also understand that if I want to access registers 254-255, the transmission is “:010300FD0002FD”. However, the device I need to access has registers at 1437, for example. How do I construct the transmission string for this?