9. Details of Command and Parameter
— 9-1 —
9. Details of Command and Parameter
9.1. Difference of RS-232C Communication and USB Communication
As the method to input commands and parameters, there are RS-232C communication
and USB communication.
When using USB communication, be sure to use “EDD MegaTerm.”
9.1.1. Different Commands between RS-232C Communication and USB Communication
When editing the program operation by USB communication, be sure to use the channel editing screen of
EDD MegaTerm.
In the terminal screen of EDD MegaTerm, you cannot edit the lines in the middle.
When changing the contents of a demonstration operation by USB communication, substitute this function
by channel editing function.
Table 9-1: Commands that have limited functions in USB communication
Edition of line in the middle: Yes
Edition of line at the end: Yes
Edition of line in the middle: No
Edition of line at the end :Yes
Test operation: Yes
Change of test operation: Yes
Test operation: Yes
Change of test operation: No
9.1.2. Simultaneous Operation of RS-232C Communication and USB Communication
RS-232C communication and USB communication can be operated simultaneously. Note that USB
communication will be processed first when both are input at the same time.
However, note that, when command AT:Auto Tuning and Command OP: Output Port Forced output are
conducted by USB communication, execute this in the state where no RS-232C communication is running.
9.1.3. Command Parameters Invalid in USB Communication
Following parameters can be set up in USB communication, but since these are for RS-232C
communicaiton, they are invalid in USB communication.
Table 9-2: Parameters invalid in USB Communication
Impact to USB communication
Switching of display mode
Switching of backspace key function
Display of version at power on