
B–62884EN/01
3. OPERATION
75
(3) Operations
Operations on the signal status window is described.
Basic operation Function
Cursor keys Move cursor.
/
Page
Up
Page
Down
Move address area on window.
/+
Shift
Tab Tab
Skip to next/previous kind of address.
Enter
Alternate signal status. key turns the signal
status ON which was OFF, and turns OFF which
was ON. key is effective only when the
write-protection is unlocked.
Enter
Enter
[Symbol]/[Adress]
F4
Display/Hide symbols.
‘address’+[Search]
F8
Search address (‘address’ can be symbol).
[Wrt On]/[WrtOff]
F10
Unlock write-protection/Re-protect. When the
protection is effective the cursor is yellow, and
becomes red when unlock.
Warning
Signal status changes and PMC parameter changes should
always be made with extreme care. Signal status changes
and PMC parameter changes can have serious and
unforeseen results on a control system, and on the process
to which it applies, if they are improperly used. It is
recommended that these functions not be used with people
near the equipment.
Note
Attempts to change some signal statuses may fail. At an
address to which sequence programs, the CNC, MMC, I/O
Link and other external I/O devices write repeatedly, the
signal status cannot be changed. (The CNC repeatedly
writes to F addresses, the MMC to M addresses, and
external I/O devices to X addresses.
(4) Message
Message Meaning and countermeasure
Sure to modify ? You tried to change signal status although
write-protected. If the attempt is intended, answer
[Yes]. Otherwise, answer [No] to cancel change.