Omron NT31 NT31C manual Comparison between NT30/NT30C and NT31/NT31C, NT30/NT30C NT31/NT31C

Functions of the NT31/NT31C Section 1-2

1-2-4 Comparison between NT30/NT30C and NT31/NT31C

Item		NT30/NT30C		NT31/NT31C
Support Tool used		NT-ZJCAT1-EV4 or NT-ZA3AT-EV2	NT-ZJCAT1-EV4
DIP switches		On rear of unit	None (software settings)
Use of B7A unit		Possible	Not possible
Use of memory unit		Not possible	Possible
RS-232C interface		Connector (9-pin) also used as port for	- Serial port A connector (also used
		screen data transfer.		for screen data transfer, 9-pin)
			-	Serial port B connector (for host
				communications only, 25-pin)
RS-422A/485 interface		Terminal block	Serial port B (25-pin D-SUB connector)
Replacement backlight		NT30-CFL01/NT30C-CFL01	NT31C-CFL01 (common use)
NT31/NT31C system program data		NT-ZS3AT-EV1	The system installer and system pro-
		(including system installer)	gram data are supplied with the Sup-
			port Tool.
High-speed 1:N NT Link		Not possible	Possible*1
Memory Link	System program	Exclusive use by Memory Link	Same as OMRON connection
	Screen data	Shared with OMRON connection	Exclusive use by Memory Link
LCD contrast adjustment		By a control on the rear of the unit	By touch panel operation
Backlight brightness adjustment		Not possible	By touch panel operation
Number of user-registered screens		Maximum of 2000	Maximum of 3999
Screen data capacity*2		512 KB	1 MB
(User program memory)
Numeral string data		Maximum of 1000	Maximum of 2000
Character string data		Maximum of 1000	Maximum of 2000
Bit data		256	Maximum of 1000
Mathematical tables		None	256 max.
			Calculations can be executed
			automatically in the PT.*1
Image data		Maximum of 224	Maximum of 4095*3
Library data		Maximum of 896	Maximum of 12288*3
Method for storing numeric values		Fixed as BCD (binary coded decimal)	Selectable from BCD (binary coded
(numeral memory data and PT status			decimal) or binary
control area)
PT status control area size		4 words	5 words (partial change of contents)*3
PT status notify area size		3 words	2 words (partial change of contents)*3
Window control area size		None	9 CH*2
Registering continuous screen		Possible	Not possible (Use a screen switchover
			as a substitute.)
Lamp/Touch switch labels		Fixed display (1 line only)	- Multiple lines can be displayed*1
			-	ON/OFF switching is possible*1
			-	Numeral display is possible*1
			-	Character string display is possible*1
Interlock function		None	Operations can be disabled from the
			PC by allocating interlock bits to the
			corresponding touch switch, numeral
			input, or character string input.*1
Device monitor function		Not possible	Possible*1

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