136
(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: 100
μ
s
• 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 100
μ
s.
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)
Summary of Contents for NZ2EX2B-60AD4
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