Mitsubishi Electric MELSEC Q Series User Manual page 68

3 SPECIFICATIONS
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(4) E PROM backup start command (Yn8)
(a) This signal is used to write buffer memory contents to E
(b) Turning on E
contents to E
2
1) "E PROM write completion flag (Xn8)" turns on at normal completion of
write.
2) If write to E
(XnA)" turns on.
If XA has turned on, turn on the E
write data to E
POINT
The number of writes to E
When setting the PID constants, etc. at a prrogrammable controller CPU startup,
reduce the number of writes by avoiding write to E
(5) Default setting registration start command (Yn9)
(a) This signal is used to return buffer memory contents to default values.
Turning on Default setting registration start command (Yn9) writes the default
values of the Q64TC to buffer memory and Default value write completion flag
(Xn9) turns on at its completion.
(b) Make default setting when Operation mode status (Xn1) is off (setting mode).
You cannot make default setting when Operation mode status (Xn1) is on
(operation mode).
(6) Setting change command (YnB)
(a) This signal is used to determine the following buffer memory contents as set
values.
• Input range (buffer memory address: 20
• Alert 1 to 4 mode setting (buffer memory address: C0
E0 to E3
H
(b) For the setting items indicated in (a), their set values are not reflected on the
module operation if they are written to the corresponding buffer memory
addresses. To determine them as set values, this device must be turned on
after the values are written to buffer memory.
(c) Turning on Setting change command (YnB) starts the operation as set in the
corresponding buffer memory address. Setting change completion flag (XnB)
turns on at completion of the setting change.
For setting items other than the above, their set values are determined by
merely writing values to the buffer memory.
(d) This device is usable as an interlock for Operation mode command (Yn1).
(7) Forced PID control stop command (YnC to YnF)
(a) This signal is used to stop the PID operation of the corresponding channel
forcibly.
(b) The mode in which PID operation stops is governed by the setting of Stop
mode setting (buffer memory address: 21
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2
PROM backup start command (Yn8) writes buffer memory
2
PROM.
2
PROM is not completed normally, "E
2
PROM backup start command again to
2
PROM.
2
PROM is up to 100,000 times.
, F0 to F3 )
H H H
MELSEC-Q
2
PROM.
2
PROM write failure flag
2
PROM, for example.
, 40 , 60 , 80 )
H H H H
to C3 , D0
H H H
, 41 , 61 , 81 ).
H H H H
to D3 ,
H
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