i have screen op15 siemns conected to plc siemsn s5

the screen give error mesage $630

is there any one tell me what this message mean and how to solve the problem ??
i need also a manual for com text software (programming tool)

 

I don't have the OP15 manual handy here, but the OP17 manual lists error (system message) 630 as "keyboard assigment area too small", and suggests "increase size of keyboard assigment area according to bit numbers used". The system messages in this block of numbers appear to all be related to programming errors. The keyboard assignment area is set using Comtext (I believe under "area assignments").