Omron V022-E3-1 5-2-3Communication with the Host, Section, Communication Using RS-232C

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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).

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