Mitsubishi Electric MELSEC iQ-R Series User Manual page 92

■Basic operation
The following shows the basic operation of when the settings have been correctly configured and two D/A converter modules
operate in synchronization with each other.
This section describes the analog HOLD/CLEAR function for each module according to the following settings.
Target module
Module A
Module B
• Synchronized operation flow of when the status of the CPU module is changed from STOP to RUN
Inter-module
synchronization cycle
CPU module
operating status
CPU module
synchronization status
Module A, Module B
'CH1 D/A conversion enable/
disable setting' (Un\G500)
Module A, Module B
'CH1 Output enable/disable
flag' (Y1)
Inter-module synchronous
interrupt program
Module A
'CH1 Synchronization digital
value' (Un\G9500)
Module B
'CH1 Synchronization digital
value' (Un\G9500)
Module A
Analog output value in CH1
Module B
Analog output value in CH1
Module A, Module B
'Synchronization status
monitor' (Un\G9600)
Inter-module synchronous interrupt program (I44)
(1) The synchronization of the modules is started at the timing of the next inter-module synchronization cycle after the status of the CPU module is changed
from STOP to RUN.
(2) Set 'CH1 D/A conversion enable/disable setting' (Un\G500) to D/A conversion enable (0), and then turn on and off 'Operating condition setting request' (Y9).
(3) The inter-module synchronous interrupt program (I44) is executed at the start timing of the second inter-module synchronization cycle. The inter-module
synchronous interrupt program (I44) is not executed in the first inter-module synchronization cycle after the CPU module is set to RUN.
(4) Since both the D/A conversion enable and output disable are set, the offset value is output in analog.
(5) Since the output enable is set, the synchronization digital value is output in analog.
1 FUNCTIONS
90
1.15 Inter-Module Synchronization Function
Analog HOLD/CLEAR function
HOLD
CLEAR
Inter-module
synchronization cycle
STOP
(1)
Stopped
(2)
D/A conversion
disable (1)
0
0
0V/0mA
0V/0mA
Inter-module synchronization target
(synchronization stopped) (1)
D/A conversion enable (0)
OFF
(3)
(4)
Inter-module synchronization target (during synchronization) (2)
RUN
Synchronized
ON
1A 2A
1B 2B
Offset value
(5)
Offset value
Analog output
value of 2A
Analog output
value of 2B