
10.DISPLAY OPERATION B-63324EN-1/03
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10.19 2-LCD-UNIT CONNECTION FUNCTION
Description
Until now, it was only possible to display screens on a single LCD unit.
By using this function, it is now possible to simultaneously display the
same screen on two LCD units.
1st LCD
1st MDI
2nd LCD
2nd MDI
Optical fiber cable
Switches (connected to JA49)
- MDI switching
MDI switching is performed with switches (JA49) mounted on the
individual LCD units. Pressing the switch on one LCD unit causes the
MDI of that LCD unit to be enabled, allowing for key operations.
MLC, bit 3 of parameter No. 2219, allows the user to select between
two modes for determining the LCD unit to be selected at power on:
- Mode in which the LCD unit whose MDI is to be enabled first at
power on is selected with parameter No. 2221.
- Mode in which the LCD unit that was selected prior to the power
being disconnected is selected at power on.
Restrictions
- Memory card interface
Only the memory card interface of the first LCD unit is available.
Note the following:
NOTE
1 If a memory card or modem card is inserted into the
memory card interface of the first LCD unit, pressing
the switch on the second LCD unit does not switch
the system to the second LCD unit.
2 If a card is inserted into the memory card interface of
the first LCD unit after the system is switched to the
second LCD unit, this card cannot be used.
Before the memory card interface of the first LCD unit
can be used, switch the system back to the first LCD
unit.