Details Of I/O Signals - Mitsubishi Q62DA User Manual

3 SPECIFICATIONS

3.3.2 Details of I/O signals

Device No. Signal name
X0 Module READY
High resolution
X8
mode status flag
Operating
X9 condition setting
completed flag
Offset/gain setting
XA
mode flag
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I/O signals for the D/A conversion module are explained in detail below.
(1) Input signals
(1) When the PLC CPU is powered on or reset, this signal turns on once the
preparation for D/A conversion has been completed, and D/A conversion
processing is then performed.
(2) When the Module READY (X0) signal is off, D/A conversion processing is not
performed. Module READY (X0) turns off in the following situations:
• During offset/gain setting mode
• When the D/A conversion module has a watchdog timer error
(1) This turns ON when in high resolution mode.
(1) This is used as an interlock condition for turning the operating condition setting
request (Y9) ON/OFF when the setting for D/A conversion enable/disable (buffer
memory address 0: Un\G0) is changed.
(2) Under the following conditions, the operating condition setting completed flag (X9)
turns OFF.
• When Module READY (X0) is OFF
• When operating condition setting request (Y9) is ON
Module READY (X0)
Operating condition
setting completed flag (X9)
Operating condition
setting request (Y9)
(1) This is used as an interlock condition for setting the user range write request (YA) to
ON/OFF when registering the value after adjustment of the offset/gain settings have
been completed.
(2) See Section 4.6 regarding the offset/gain settings.
Module READY (X0)
Offset/gain setting mode flag (XA)
User range write request (YA)
Description
Performed by the D/A conversion module
Performed by the sequence program
Performed by the D/A conversion module
Performed by the sequence program
OFF
MELSEC-Q
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