I/O Signals Details - Mitsubishi Electric MELSEC Q Series User Manual

3 SPECIFICATIONS

3.6.2 I/O signals details

Device
Signal Name
No.
X0 Module READY
CompactFlash
X1
card setting status
X2 File access status
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The following table shows the details of the I/O signals of the Web server module.
(1) Input signals
Turns on when the Web server module becomes ready after the programmable controller is
powered off and then on or the CPU module is reset.
(1) Turns on when the CompactFlash card is set and File access status (X2) is off.
(2) Turns off when the CompactFlash card is not set or File access status (X2) is on.
(1) Is on during file access stop. ( )
The following operations are available during file access stop.
(a) Removing and setting the CompactFlash card. (Refer to Section 4.9.)
(b) Powering off during operation without battery. (Refer to Section 4.11.)
During file access stop,
1) Write of file to standard ROM is disabled.
2) Read from or write to CompactFlash card is disabled.
3) Tag collection, logging and event monitor are stopped.
(2) Is off during file access operation.
File access stop request
File access stop cancel request
File access status
CompactFlash card setting status
Description
ON
OFF OFF
(Y2)
OFF
(Y3)
ON
OFF
(Operating)
(X2)
ON
OFF
(X1)
CompactFlash card replacement
Programmable controller power-OFF
MELSEC-Q
ON
OFF
(Stopped)
OFF
(Operating)
ON
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