Mitsubishi Electric C80 Series Instruction Manual page 368

C80 Series Instruction Manual
9 Machining a Workpiece
Precautions
Buffer correction mode will not be applied in the following cases:
(1) Machining program for buffer corrections is in edit lock or program display lock state.
(2) When the data protection is valid.
(3) Machining program for the device in write-protection state
(4) Machining program in read-only state
(5) During the compound type fixed cycle, the tool center point control or executing the MTB macro program
Starting and ending buffer corrections
(1) If automatic operation is started or there is no next command data, the buffer correction mode is not entered even if
the menu key is pressed.
(2) To stop or to cancel the buffer corrections, press the menu [Close] again, or press the
(3) If another menu key, etc., is pressed before pressing the [INPUT] key, the corrected buffer contents return to the orig-
inal data.
(4) If changing to another screen or resetting the NC during buffer correction or changing system, the buffer correction is
canceled. In this case, the corrected contents are not saved, and the buffer correction mode ends.
Display data during buffer correction
(1) The key operations used for corrections in the buffer correction mode are the same as the operations when editing a
program. Up to 16 blocks can be displayed. Even when a block is displayed over several lines, all 16 blocks can be
displayed by scrolling the buffer correction area.
(2) Number of characters in one block is max. 256 (including ";" (EOB)). If exceeds 256 characters, the block will be split
into two.
(3) Up to 4096 characters can be edited with buffer corrections.
Operations during buffer correction
(1) If there is no ";" (EOB) at the data in the last block corrected when the [INPUT] key is pressed, it is added automatically.
(2) When the buffer correction mode is set, the last block displayed in the buffer correction area may not fit in if the block
is long, etc.
To correct this type of block, take care to the following points.
If a ";" (EOB) is added to the end of the displayed data, the section following the incomplete display becomes an-
other block. If ";" (EOB) is not added, the following section stays the same, and is handled as the continuation of
the displayed section.
If one block is deleted by pressing the [C.B] key, the block is deleted up to the section following the incomplete
display (up to the ";").
(3) Operation cannot be started during buffer correction. An alarm occurs.
(4) If NC is reset during buffer correction, buffer correction mode will be canceled, although buffer correction window is
left opened. At this time, editing operation is not possible. Close the correction window.
(5) Buffer correction writing is not interrupted by NC reset.
(6) The operation message "Can't write into file" appears at any attempt of the buffer mode correction to write into the
program being operated, which had stopped when the buffer correction mode started.
For multi-part system
(1) When a machining program under buffer correction is called by another part system, a file input/output error occurs
to the caller-side part system, and restart of the operation will be disabled.
(2) Note that if the same program is executed in another part system after a buffer correction, there may be some changes
in paths, etc.
(3) The program which has searched for the sequence No. while operating in another part system cannot be buffer cor-
rection. The operation message "Buffer correct not possible" appears.
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key.
IB-1501453-C