Mitsubishi MELSEC L Series User Manual page 101

(b) Offset/gain setting mode
When the module is started with the external power supply input status, External power supply READY flag
(X7) turns from OFF to ON at the same time as Offset/gain setting mode flag (XA) turns from OFF to ON.
Also, if Offset/gain setting mode flag (XA) is ON and the external power supply is input later, External power
supply READY flag (X7) turns from OFF to ON after 100ms.
(c) When the external power supply is not supplied, or when the time after the supply is
less than 100ms.
The following occurs.
• External power supply READY flag (X7) turns OFF, and the D/A conversion processing is not executed.
• The analog output value becomes 0V/0mA.
• Out-of-range digital value error detection and alarm output are not executed.
● For the external power supply, supply the voltage and current indicated in the performance specifications.
● When executing D/A conversion, make sure that Module READY (X0) and External power supply READY flag (X7) are
ON.
Digital
value write
command
(3) Operating condition setting completed flag (X9)
When changing the following settings, use Operating condition setting completed flag (X9) as an interlock
condition to turn Operating condition setting request (Y9) OFF → ON → OFF.
• D/A conversion enable/disable setting (Un\G0)
• Warning output setting (Un\G47)
• CH Warning output upper limit value (Un\G86, Un\G88, Un\G90, Un\G92)
• CH Warning output lower limit value (Un\G87, Un\G89, Un\G91, Un\G93)
• Scaling enable/disable setting (Un\G53)
• CH Scaling lower limit value (Un\G54, Un\G56, Un\G58, Un\G60)
• CH Scaling upper limit value (Un\G55, Un\G57, Un\G59, Un\G61)
In the case of the following status, Operating condition setting completed flag (X9) turns OFF.
• When Operating condition setting request (Y9) is ON
Module READY (X0)
Operating condition setting
completed flag (X9)
Operating condition
setting request (Y9)
Controlled by the D/A converter module
Controlled by the program
ON
ON
ON
APPENDICES
ON
OFF
APPEN
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