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96
Memory Clear
The memory clear operation clears all memory areas except the I/O comments
and UM Allocation information.
The Programming Console will display the following screens:
00000
00000
00000
00000MEMORY CLR?
HR CNT DM EM~
00000MEMORY CLR
END
Note
When the write-protect switch (pin 1 of the CPU Unit’s DIP switch) is set to ON
the UM area (from DM 6144 through the ladder program) will not be cleared.
Other data areas, such as HR, AR, CNT, and DM from DM 0000 to DM 6143 will
be cleared.
4-6-4 Registering the I/O Table
The I/O Table Registration operation records the types of I/O Units controlled by
the PC and the Rack locations of the I/O Units. It also clears all I/O bits.
It is not absolutely necessary to register the I/O table with the C200HX/HG/HE.
When the I/O table has not been registered, the PC will operate according to the
I/O Units mounted when power is applied. The I/O verification/setting error will
not occur.
It is necessary to register the I/O table if I/O Units are changed, otherwise an I/O
verification error message, “I/O VER ERR” or “I/O SET ERROR”, will appear
when starting programming operations.
I/O Table Registration can be performed only in PROGRAM mode with the write-
protection switch (pin 1 of the CPU Unit’s DIP switch) set to OFF
(OFF=“WRITE”).
Key Sequence
Preparation for Operation
Section 4-6
Содержание SYSMAC C200HE
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