Troubleshooting Aids
Chapter 18
182
Function Description
Key Sequence
Mode
Removing a FORCE OFF
Test or Run/Program
[FORCE OFF] [REMOVE]
Position the cursor on the Image Table bit or bit instruction
whose force OFF is to be removed and press the key
sequence.
Removing all FORCE OFF
Test or Run/Program
[FORCE OFF]
[CLEAR MEMORY]
Position the cursor anywhere in program and press key
sequence.
Forced Address Display
Any
[SEARCH] [FORCE ON]
or
[SEARCH] [FORCE OFF]
[CANCEL COMMAND]
Displays a list of the bit addresses that are forced ON and
forced OFF. The [SHIFT] [
↓
] and [SHIFT] [
↑
] keys can be
used to display additional forces.
To terminate.
Inserting a TEMPORARY
END Statement
Program
[INSERT]
[
←
] [T. END]
or
[INSERT] [T. END]
Positions the cursor on the instruction that will follow the
TEMPORARY END instruction. The remaining rungs,
although displayed and accessible, are not scanned.
Position the cursor on the instruction that will precede the
TEMPORARY END instruction. The remaining rungs,
although displayed and accessible, are not scanned.
Removing a TEMPORARY
END Instruction
Program
[REMOVE] [T. END]
Position cursor on TEMPORARY END instruction and
press key sequence.
Bit monitor allows the status of all 16 bits of any data table word to be
displayed. Bit manipulation allows the status of the displayed bits to be
selectively changed or forced, and is useful in setting initial conditions in
the data of word instructions.
Bit manipulation can function when the processor is in program mode.
When in test, or run/program, the user program may override the bit status
in the next scan.
The [
←
] and [
→
] keys can be used to cursor over to any bit. With the
cursor on the desired bit, its status can be changed by pressing the [1] or
[0] key. Bit manipulation also allows the forcing of image table bits as
described in Section 18.2 below.
To terminate this function, press [CANCEL COMMAND].
WARNING: If it is necessary to change the status of any data
table bit, be sure that the consequences of the change are
thoroughly understood beforehand. If not, unpredictable and/or
hazardous machine operation could occur directly or indirectly
as a result of changing the bit status. Damage to equipment
and/or personal injury could result.
18.1
Bit Manipulation and
Monitor
18.1.1
Bit Manipulation
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