Mitsubishi Electric MELSEC iQ-R Series User Manual page 95

■Synchronous conversion processing in the D/A converter module
This function imports the synchronization digital values at the timing when the inter-module synchronous interrupt program is
executed, and then simultaneously converts them to analog in the next inter-module synchronization cycle for all the
channels.
The following shows the D/A conversion processing example of when D/A conversion is enabled in all channels.
Inter-module
synchronization cycle
Inter-module synchronous
interrupt program
'CH1 Synchronization digital
value' (Un\G9500)
'CH2 Synchronization digital
value' (Un\G9502)
'CH3 Synchronization digital
value' (Un\G9504)
'CH4 Synchronization digital
value' (Un\G9506)
(1)
D/A conversion processing
Analog output value in CH1
Analog output value in CH2
Analog output value in CH3
Analog output value in CH4
Inter-module synchronous interrupt program (I44)
T : D/A conversion time (approx. 20s)
I
(1) Imports the synchronization digital values at the timing of the inter-module synchronization cycle, and then simultaneously converts them to analog for all the
channels.
(2) The simultaneously analog converted values for all the channels are output in analog.
Inter-module
synchronization cycle
CH1 A CH1 B
CH2 A CH2 B
CH3 A CH3 B
CH4 A CH4 B
CH1 CH1
CH2 CH2
CH3 CH3
CH4 CH4
(2)
Analog output
value of CH1 A
Analog output
value of CH2 A
Analog output
value of CH3 A
Analog output
value of CH4 A
CH1 C
CH2 C
CH3 C
CH4 C
CH1
CH2
CH3
CH4
Analog output Analog output
value of CH1 B value of CH1 C
Analog output Analog output
value of CH2 B value of CH2 C
Analog output Analog output
value of CH3 B value of CH3 C
Analog output Analog output
value of CH4 B value of CH4 C
T
I
1.15 Inter-Module Synchronization Function
1
1 FUNCTIONS
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