Chapter7 Programming - Mitsubishi Electric MELSECQ Series User Manual

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PROGRAMMING
CHAPTER7
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PROGRAMMING
This chapter describes programs using channel 1 of QD63P6, whose system configuration
example shown below, in the following two cases:
• GX Configurator-CT is used
• GX Configurator-CT is not used
When applying any of the program examples introduced in this chapter to the actual
system, verify the applicability and confirm that no problem occurs in the system control.
(1) System configuration
(X/Y0 to X/Y1F)
(2) Setting conditions of the intelligent function module switch
Set the pulse input mode, counting speed setting, counter format, and present value
selection setting with the intelligent function module switch on GX Developer. (Refer
to Section 4.5.)
Table 7.1 Setting conditions of the intelligent function module switch
CH1
(3) Program conditions
This program uses the QD63P6 to perform counting on the conditions listed below.
Preset value setting
Coincidence detection point change request
Coincidence detection point setting
Ring counter lower limit value
Ring counter upper limit value *1
Period setting
* 1 Set this only when using the ring counter function.
* 2 Set this only when using the periodic pulse counter function.
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QX10 (X20 to X2F)
QY10 (Y30 to Y3F)
QD63P6
Figure 7.1 System configuration
Pulse input mode
1 multiple of 2 phases
Table 7.2 Initial setting
Item
*1
*2
Counting speed Present value
setting selection setting
200 kPPS Present value A
Setting value
Change request
500 (5000ms)
1
2
3
4
5
6
2500
7
1000
-5000
5000
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