APPENDIX

(1) Functions

MELSEC-Q

(a)Restores the offset/gain values of the user range setting stored in the CPU to the A/D converter module.

(b)There are two types of interlock signals for the G.OGSTOR instruction: the completion device (D) and the status display device at completion (D) + 1.

1)Completion device

Turns ON in the END processing of the scan where the G.OGSTOR instruction is completed, and turns OFF in the next END processing.

2)Status display device at completion

Turns ON and OFF depending on the completion status of the G.OGSTOR instruction.

 

 

 

Normal completion

: Stays OFF and does not change.

 

 

 

Abnormal completion: Turns ON in the END processing of the scan

 

 

 

 

 

 

where the G.OGSTOR instruction is completed,

 

 

 

 

 

 

and turns OFF in the next END processing.

Sequence program

END processing END processing

 

 

END processing END processing

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Execution completion of

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

the G.OGSTOR instruction

G.OGSTOR instruction

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON

 

 

 

 

 

 

 

 

 

 

Completion device (D)

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ON Abnormal

 

 

 

 

 

 

 

 

 

 

completion

Status display device OFF at completion (D)+1

A/D conversion

ON

 

completed flag (XE) 1

 

OFF

Normal completion

1scan

ON

1 When the G.OGSTOR instruction is executed, A/D conversion is not performed. After the completion device (D) turns ON, A/D conversion starts, the A/D conversion value is stored into the buffer memory, and the A/D conversion completed flag (XE) then turns ON.

(c)When the offset/gain values are restored, the reference accuracy falls to less than 0.15%.

(2)Operation error

In any of the following cases, an error occurs and the corresponding error code is stored into the completion status area (S)+1.

Error code

Case resulting in operation error

161

The G.OGSTOR instruction was executed in the offset/gain setting

mode.

 

162The G.OGSTOR instruction was executed consecutively.

The G.OGSTOR instruction was executed for the model that differs

163from the model for which the G.OGLOAD instruction had been executed.

App. - 13

App. - 13

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Mitsubishi Electronics Q68ADI, Q68ADV, Q64AD user manual Case resulting in operation error, Mode
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