Omron NT20M Operation Manual page 81

Specifications
Item
Bar graph display
Overlapping screens
Continuous screens
No. of registered screens
Screen registration method
Screen saving method
Screen attribute settings
Data Quantities
Item
Mark data
String data
Numeral data
Switches
Lamps
Special Features
Item
Alarm output
Host RUN input
Buzzers
Maintenance functions
Battery backup
Key input sound setting
2 to 255 dots; +/– area display;% display capability
Overlapping of a maximum of 8 registered screens is possible.
Scrolling the display for a maximum of 8 registered screens is possible.
250 max.
Transfer to the PT data created at IBM PC/AT compatible, or mount EPROM chip
containing data.
Can be saved to SRAM (with backup battery), EEPROM or EPROM.
Alarm, continuous buzzer, intermittent buzzer, function key bit input, touch switch bit
input, display history, 10-key, backlight
64 max.
32 characters (standard size characters) x 32 strings max.
8 digits x 128 values max.
Switches and lamps combined: 256 max.
(There is no limit when Host Link direct connection is used.)
Relay output on rear terminal block.
Rating: NT20M:
NT2000M:
Output condition: NO contact (Closes when a command is received from the host or
when there is a screen called with an alarm-ON specification.)
Photocoupler input on rear terminal block.
+10%
Rating 24 VDC /
–15%
When this input goes OFF, the PT will display "host error" regardless of other conditions.
Two types: Continuous sound and intermittent sound.
ON: The buzzer will sound when a command is received from the host, or when
a screen with a buzzer-ON specification is called.
OFF: The buzzer is turned OFF when the Buzzer Key is pressed, when a
command is received from the host, or when a screen without a buzzer-ON
specification is displayed.
Sound pressure: 80 dB min./87 dB average (Measured at 10 cm from front panel.)
Enabled/disabled (NT2000M only):
by means of a setting pin. If it is disabled, the buzzer will not sound under
any conditions.
Self-test for memory, switches, etc.
Status setting confirmation for communications and other conditions.
Simple communications confirmation.
Data backed up by lithium battery when screen data memory is SRAM.
Data backup time: 5 years (at 25°C)
If there is a voltage drop, the BAT LOW indicator on the front panel will light and the
Battery Low Flag to the host will turn ON.
The battery can be replaced from the rear of the Terminal while power is on.
If Key Input Sound is set to ON in the Memory Switch Menu, a beep will sound for 0.2 s
when a system key, function key, or touch switch is pressed.
Specifications
Specifications
Specifications
1 A at 24 VDC
1 A at 24 VDC
The buzzer sound can be enabled or disabled
Appendix B
77