Opticon NFT 1125, NFT 2135 manual Setting the Trigger Function

Manual No. 25-NFT1121-01

Series NFT-1121/2135 Mini CCD Fixed Position Scanners

23. Setting the Trigger Function

Computer	Function	Bar Code
Command	/Description	Command
(Z7)	START/END	,Z7,
	Programming Menu
S7	Disable the trigger function	,S7,	B
	/ Red scanning light is ON
	continuously
S8	Enable the trigger function /Red	,S8,
	scanning light is OFF until trigger
	is activated or “pulled”
Z	Activate the trigger; turns on the	Use
	red scanning light	Computer Command

The Trigger function is disabled in the default setting. This means that the red scanning light is “ON” continuously and the scanner is always ready to read. For some applications, you may wish to activate the scanner only at a specific time. This can be done by enabling the Trigger function. Once in the “Trigger Enabled” mode, the red scanning light is OFF until the trigger is activated or “pulled.” Either a hardware trigger or a software trigger pulse may be used to activate the scanner.

The hardware trigger is actuated by pulling Pin #16 (on the standard DB25 female connector) LOW. The software trigger is actuated by downloading and <ESC> Z <CR> computer command from the host. (See Scanner Timeout to establish the length of time the scanning light remains ON after the trigger is activated.)

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