Omron Programmable Terminals NT631C - Manual (Page 57)

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Using a Memory Unit Section 3-5
• One Memory Unit can store a system program for up to two PTs of differ-
ent models. In order to transmit a system program from the Memory Unit
to the NT631/NT631C, the system program must be compatible to the tar-
get PT model.
• The statuses of memory switch settings and system settings can be
recorded to the Memory Unit besides screen data. When the data in the
Memory Unit is written into the NT631/NT631C, make sure that these set-
tings can be adapted to the NT631/NT631C used before transmission.
3-5-1 Installation Method
Install the Memory Unit (NT-MF261) at the expansion interface connector at
the rear of the NT631/NT631C as shown in the figure below (the expansion
interface connector is located underneath the note label.).
3-5-2 Method of Use
As shown in the figure below, a Memory Unit has two sets of four DIP
switches, and the operation is determined by the DIP switches that are set at
startup.
Note 1. Always confirm that the power to the NT631/NT631C is off before setting
the DIP switches.
2. Do not touch the PCB (printed circuit board) directly with bare hands.
DIP Switch Functions The functions of the DIP switches on the Memory Unit are indicated in the
table below.
SW1
Mounting screws
4 3 2 1
OFF
SW1 SW2
OFF
4 3 2 1
Factory setting is turned all to off.
Switch Function
SW1-1 Automatic transmission (writing from the Memory
Unit to the PT) OFF: Not executed
ON: Executed
SW1-2 Automatic transmission (writing from the PT to the
Memory Unit) OFF: Not executed
ON: Executed