39
Using a Memory Unit Section 3-5
* The Memory Unit stores system program or screen data for one PT in each
of areas (bank 0, bank 1). (The total data storage is for two PTs.) SW2-3
sets which of these two banks is used for automatic transmission.
Reference: • In the following cases, a mode setting error occurs.
• More than one of the SW1-1 to SW1-3 switches are set to ON.
• None of the SW1-1 to SW1-3 switches are set to ON.
• In the following case, a protect setting error occurs.
Transmitting to the write destination has been disabled by the setting for
SW2-1 or SW2-2.
• In the following cases, a data transmission error occurs.
• An attempt is made to transmit data other than the system program to
PT system program area.
• An attempt is made to transmit the system program to PT screen data
area.
• For details on mode setting errors and protect setting errors, refer to
Errors When Using a Memory Unit (page 43).
Writing Screen Data to a
Memory Unit Using
Automatic Transmission
(PT to Memory Unit)
In this mode, system program or the screen data in the NT31/NT31C is forc-
ibly written to the Memory Unit irrespective of the setting status of the NT31/
NT31C.
This mode is convenient if the touch panel is broken and touch switch opera-
tion is not possible, or if someone unfamiliar with touch switch operation at the
operation site is using the system.
Reference: When screen data is written to the Memory Unit, the data that has been stored
in the specified area up until that point is lost (if the data is written into only one
Bank, the other Bank will not be affected).
Method of Execution
Use the following procedure to write the screen data in the NT31/NT31C to
the Memory Unit by automatic transmission.
1,2,3... 1. Check that the power supply to the NT31/NT31C is OFF, then set the DIP
switches of the Memory Unit as follows after installing Memory Unit to
NT31/NT31C.
It is not strictly necessary to set SW2-1 to OFF (to disable writing to the
PT), but it is recommended to do so to avoid loss of data in the event of
operating errors.
Reference: • Setting SW2-4 to ON (System/Screen transmitted simultaneously) dis-
ables the setting of SW1-4.
• Setting SW2-4 to ON (System/Screen transmitted simultaneously) dis-
ables the setting of SW2-3, writes the system program into bank 0, and
the screen data into bank 1 at all times.
SW1
SW1-4 ON: System program
OFF: Screen data
SW2-3 ON: Bank 1
OFF: Bank 0
SW2-4 ON: System/Screen transmitted simultaneously
OFF: System/Screen not transmitted simultaneousl
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