
Text entry commands take the form of 2 ASCII characters, in some cases followed by a signed argument (‘nn' below). All characters are echoed by the processor. A carriage return character will execute the command, and backspace is also implemented. When the ‘display' command is executed, the product will display the text on its front panel and OSD (aswell as returning it on RS232), 12 characters for the 561 & 568, 20 characters for the 861. Operation. Text entry consists of four commands; • En