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3
SPECIFICATIONS
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(17) BBLKWR start request signal (Y0B)
(a)
This signal is used to start the processing of the dedicated instruction
BBLKWR.
When executing the dedicated instruction BBLKRD, always turn on the
BBLKRD start request signal (Y0B) to turn on the BBLKRD start request
acceptance completion signal (X0B) so that it is used as an interlock
condition.
(b)
When the BBLKWR start request signal (Y0B) is turned on in the sequence
program, the QJ71PB93D starts the processing of the dedicated instruction
BBLKWR.
(c)
When the BBLKWR start request signal (Y0B) is turned off from the
sequence program, the processing of the dedicated instruction BBLKWR is
ignored.
(d)
Only when using the dedicated instruction BBLKWR, turn on the BBLKWR
start request signal (Y0B).
Note that, if the dedicated instruction BBLKWR is not executed after the
BBLKWR start request signal (Y0B) has been turned on, the transmission
delay time between the master and a slave stations is prolonged.
(18) Operation mode change request signal (Y11)
(a)
Turn on the operation mode change request signal (Y11) when changing
the operation mode to the one set in the operation mode change request
area (buffer memory address: 8CF
(b)
When you have checked that the operation mode change completion signal
(X11) is on, turn off the operation mode change request signal (Y11).
(c)
Refer to (10) in this section for the on/off timing.
(19) Station number change request signal (Y13)
(a)
Turn on the station number change request signal (Y13) when changing the
station number to the one set in the station number change request area
(buffer memory address: 203
(b)
When you have checked that the station number change completion signal
(X13) is on, turn off the station number change request signal (Y13).
(c)
Refer to (11) in this section for the on/off timing.
POINT
Station numbers can be set from the class 2 master station.
In this case, specifying "TRUE" for "No_Add_Chg" disables the station number
change on the QJ71PB93D.
The station number of the QJ71PB93D cannot be changed while the station
number change is disabled.
To change the station number again, clear the station number in the station number
change request area of the QJ71PB93D (buffer memory address: 515(203
cancel the disabled status. (Refer to Section 3.4.2 (6))
).
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MELSEC-Q
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