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Program Transfer Section 7-1
7-1 Program Transfer
A Programming Device is used to transfer the programs, PLC Setup, I/O
memory data, and I/O comments to the CPU Unit with the CPU Unit in PRO-
GRAM mode.
Program Transfer Procedure for CX-Programmer
1,2,3... 1. Select PLC, Transfer, and then To PLC. The Download Options Dialog
Box will be displayed.
2. Specify the items for the transfer from among the following: Programs, Set-
tings (PLC Setup), I/O table, Symbols, Comments, and Program index.
Note The I/O table and Comments can be selected only if they exist on the
Memory Card in the CPU Unit.
3. Click the OK button.
The program can be transferred using either of the following methods.
• Automatic transfer when the power is turned ON
When the power is turned ON, the AUTOEXEC.OBJ file in the Memory Card
will be read to the CPU Unit (pin 2 on the DIP switch must be ON).
• Program replacement during operation
The existing program file can be replaced with the program file specified in the
Auxiliary Area by turning ON the Replacement Start Bit in the Auxiliary Area
(A65015) from the program while the CPU Unit is in operation. Refer to
SEC-
TION 5 File Memory Functions
for details.
7-2 Trial Operation and Debugging
7-2-1 Forced Set/Reset
A Programming Device can force-set (ON) or reset (OFF) specified bits (CIO
Area, Auxiliary Area, HR Area, and timer/counter Completion Flags). Forced
status will take priority over status output from the program or I/O refreshing.
This status cannot be overwritten by instructions, and will be stored regard-
less of the status of the program or external inputs until it is cleared from a
Programming Device.
Force-set/reset operations are used to force input and output during a trial
operation or to force certain conditions during debugging.
Force-set/reset operations can be executed in either MONITOR or PRO-
GRAM modes, but not in RUN mode.
Note Turn ON the Forced Status Hold Bit (A50013) and the IOM Hold Bit (A50012)
at the same time to retain the status of bits that have been force-set or reset
when switching the operating mode.
Turn ON the Forced Status Hold Bit (A50013) and the IOM Hold Bit (A50012),
and set the Forced Status Hold Bit at Startup setting PLC Setup to retain the
status of the Forced Status Hold Bit hold to retain the status of bits that have
been force-set or reset when turning OFF the power.
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