Omron NT11 - 01-2004, User Manual

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10
Direct Connection Function
Section 1-5
• This can be used even when the PLC is in the RUN mode.
(*) Except a DM area.
The NT link is compatible with the host link. The NT11 screen data and the
PLC programs handled by the host link direct connection can be used with for
the NT link as they are.
1-5-2 Functions of the Allocated Bits and Words
Elements displayed on the NT11 and the NT11 status can be allocated to the
bits and words of the PLC. By changing the contents of the bits and words, the
NT11 can be controlled by the PLC. It is also possible to send data to the PLC
by pressing the function keys on the panel of the NT11.
• Controlling the NT11 by a PLC
The following NT11 functions can be controlled by a PLC.
Screens: Display of designated screens, confirmation of screen
numbers, etc.
Memory tables: Writing to a memory table, copying from a memory table
to another memory table, etc.
System control: ON/OFF of backlight, control of output of daily reports and
display histories at a printer.
• Notifying from the NT11 to a PLC
Data in the NT11 is sent to a PLC when a numeric key is pressed. The fol-
lowing types of data are sent to a PLC.
- NT11 status
- Password input status
- Numeric values input by the numeral keys
- Function key input status
Functions of Display Elements
• Numeral memory table
Allocation destination: Word
Allocate numeral memory table entries to arbitrary words in the PLC. If word
contents change when corresponding numeral memory table entry is dis-
played on the screen, the value on the screen will also change. Monitoring of
words can also be made easily.
Reading and writing are executed so that the contents of allocated words are
always the same as those of the numeral memory table entries.
Numeral memory table entry 150 (CIO/IR 0005)
NT11
PLC
Numeral memory
table entry 1
(TIM003)
CIO/IR 0005