Mitsubishi Electric NZ2EX2B-60AD4 - Page 138

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(3) How the CC-Link IE Field Network synchronous communication function
operates
At every synchronization period of the master station, A/D conversion processing is performed on the A/D
conversion enabled channels.
(a) With no extension module connected, or with an extension I/O module connected
The figure below shows the operation timing under the following settings:
• Synchronization period of the master station: 0.88ms
• Conversion speed setting: 100μs
• Number of conversion enabled channels of the main A/D converter module: 4 channels
No. Description
1) At the starting point of the synchronization period of the master station, A/D conversion starts.
2) A/D conversion takes place in the order of from CH1 to CH4 at an interval of 100μs.
3)
At the starting point of the synchronization period of the master station, the values after A/D conversion are transferred to the
master station.
Synchronization cycle of the master
station
A/D conversion processing
CH Digital operation value
(RWr2 to RWr5, RWr12 to RWr15)
A/D
conversion
A/D
conversion
A/D
conversion
A/D
conversion
A/D conversion
value
A/D conversion
value
A/D conversion
value
A/D conversion
value
Controlled by the A/D converter module
Synchronization cycle
of the master station
A/D conversion of CH1
A/D conversion of CH2
A/D conversion of CH3
A/D conversion of CH4
CH4 Digital operation value
(RWr5)
CH3 Digital operation value
(RWr4)
CH2 Digital operation value
(RWr3)
CH1 Digital operation value
(RWr2)
1st A/D conversion value of CH1
1st A/D conversion value of CH2
1st A/D conversion value of CH3
1st A/D conversion value of CH4
2nd A/D conversion value of CH1
2nd A/D conversion value of CH2
2nd A/D conversion value of CH3
2nd A/D conversion value of CH4
0
0
0
0
1)
2)
2)
2)
3)
2)
0.88ms
: Conversion processing (100μs)