Omron Programmable Terminals NT31 NT31C - Manual (Page 19)

1-2 Section Functions of the NT31/NT31C
7
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
screen data transfer. - Serial port A connector (also used
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
(including system installer) The system installer and system pro-
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 y
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
(User program memory)
512 KB 1 MB
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
(numeral memory data and PT status
control area) Fixed as BCD (binary coded decimal) Selectable from BCD (binary coded
decimal) or binary
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