Mitsubishi Electric MELSEC iQ-R Series User Manual page 85

■Execution of the wave output step action
After switching the status to the wave output step action status, execute the wave output step action in the following
procedure. Repeating this procedure tests analog output in the wave output mode and debugs the wave output function.
1.
Change the value of the target wave data for the wave output step action to any value.
2.
Set a value for 'CH1 Wave output step action movement amount' (Un\G482).
Set the following value according to the direction to move.
Movement direction
No movement
Forward movement
Reverse movement
3.
Check that the value in 'CH1 Wave output step action movement amount' (Un\G482) has become No movement (0).
4.
Check that 'CH1 Wave output current address monitor' (Un\G436, Un\G437) became the buffer memory addresses of
the wave data to be output.
5.
Check that proper analog values are output.
■End of the wave output step action
End the wave output step action in the following procedure.
1.
Change the value in 'Step action wave output request' (Un\G188) from ON (1) to OFF (0).
2.
Check that During wave output stop (0) has been set for CH Wave output status monitor in all the channels. If a value
other than Wave output stop request (0) has been set for 'CH1 Wave output start/stop request' (Un\G462), the value is
changed to Wave output stop request (0) forcibly at this timing. Also check the value of this buffer memory area.
To execute the wave output after the wave output step action, set Wave output start request (1) for 'CH1 Wave output start/
stop request' (Un\G462).
• Analog output may be changed suddenly when a value is set for 'CH1 Wave output step action movement
amount' (Un\G482). To prevent a sudden change, use with 'CH1 Output enable/disable flag' (Y1) is
recommended. For the combination, refer to the following.
Page 23 Analog Output HOLD/CLEAR Function
• Analog output can be changed at any timing as well by using 'CH1 Output enable/disable flag' (Y1) during
the wave output step action. For details, refer to the following.
Page 84 Analog output test in the wave output mode
• During the wave output step action, the wave output status is not changed even when a value is set for
'CH1 Wave output start/stop request' (Un\G462). To change the wave output status, set 'Step action wave
output request' (Un\G188) to OFF (0) (set the status to the during wave output stop).
Description
The buffer memory address of the wave data to be output is not moved.
The buffer memory address of the wave data to be output is moved in the address increasing
direction from the buffer memory address of the currently output wave data.
■When 10000 is set in 'CH1 Wave output step action movement amount' (Un\G482) with the
buffer memory address of the currently output wave data Un\G20000:
The buffer memory address for the wave output is moved to Un\G30000.
The buffer memory address of the wave data to be output is moved in the address decreasing
direction from the buffer memory address of the currently output wave data.
■When -10000 is set in 'CH1 Wave output step action movement amount' (Un\G482) with the
buffer memory address of the currently output wave data Un\G40000:
The buffer memory address for the wave output is moved to Un\G30000.
Setting value
0
1 to 30000
-1 to -30000
1 FUNCTIONS
1.14 Wave Output Function
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