Omron NT-series Programmable Terminal V022-E3-1 - Manual (Page 136)

Section 4-2
5-2-3 Communication with the Host
Communication with Host Link, NT Link, and C200H Direct Communication
Using the direct communication function, bits and words can be allocated without
restriction to the PC memory area, and data can then be directly written to and
read from these bits and words. This makes the following possible:
Control and notification of display elements
Control and notification of NT600S statuses
Screen switching
Ascertainment of the screen number of the displayed screen
Memory table operations
For details on the actual operations involved, refer to Section 5 “Using Host Link/
NT Link/C200H Direct”.
Communication Using RS-232C
In RS-232C communication, by sending and receiving commands via an RS-232C
interface, the following functions of the NT600S can be utilized from various types
of host.
Control and notifications of display elements
Control and notification of NT600S statuses
Memory table operations
Display/deletion of characters and graphics
For details on the actual operations involved, refer to Section 6 “Using the
RS-232C Interface Unit”.
Controllable NT600S Functions
The following statuses of the NT600S can be controlled.
Screen display :Displays and clears screens
Continuous and intermittent buzzers
:Sounds and stops the buzzer
Backlight mode :Switches on the backlight on/causes the
backlight to flash
For details on the actual procedures used for these types of control, refer to Sec-
tion 5-4 “NT600S Status Control” (page 192), and also “Screen Display Control”
(page 214) and “Buzzer Control” (page 214).