Mitsubishi Electric NZ2GN2B1-32D, Руководство пользователя

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162
8 FUNCTIONS
8.3 CC-Link IE TSN Network Synchronous Communication Function
■
Operation
The following remote registers (RWr) are used for the synchronization input timing acquisition control.
• Synchronization input timing information X
 OFF to ON/ON to OFF (RWr10 to RWr8F) (

Page 238 Synchronization
input timing information)
Ex.
The following figure shows the operation of synchronization input timing acquisition control using the external input X0, with
the synchronization cycle of the master station set to 3ms.
• The operation of external input signal X  is the same both for the synchronization input timing acquisition
control and for the synchronous X input control. Therefore, even when the I/O module is operating with the
synchronization input timing acquisition control, a user can get the input status information of each
synchronization cycle start timing by referring to External input signal X
 (RX0 to RXF, RX10 to RX1F).
• When the external input X  (status of the X terminal) has changed OFF to ON to OFF within one
synchronization cycle, if the ON status is shorter than the input response time, a value in Synchronization
input timing information X
 OFF to ON/ON to OFF (RWr10 to RWr8F) is not updated.
• When the external input X  (status of the X terminal) has changed ON to OFF to ON within one
synchronization cycle, if the OFF status is shorter than the input response time, a value in Synchronization
input timing information X
 OFF to ON/ON to OFF (RWr10 to RWr8F) is not updated.
• The resolution of input timing acquisition is 8ns.
• The I/O module adjusts the synchronization cycle periodically to match the start timing of the cycle with
those of other stations. When the cycle is adjusted, its length becomes 4

s longer or 4

s shorter at
maximum, and thus a value exceeding the synchronization cycle length may be stored in Synchronization
input timing information X
 OFF to ON/ON to OFF (RWr10 to RWr8F).
• If a major or moderate error occurs in the I/O module, 4294967295 is stored in Synchronization input timing
information X  OFF to ON/ON to OFF (RWr10 to RWr8F).
Performed by the I/O module
(1) The input has turned on 500

s later.
(2) The input has turned off 1000

s later.
(3) The input has turned on 2000

s later.
(4) The input has turned on 1500

s later.
(5) The input has turned off twice, 500

s later and 2000

s later.
500000
(500μs)
1000000
(1000μs) 1000000
(1000μs)
1500000
(1500μs) 2000000
(2000μs)
4294967295 500000
(500μs)
(1)
(2)
(5)
(4) (3)
3ms
ON
OFF
(No change) (No change)
Synchronization cycle of
the master station
Synchronous input timing
information X0
OFF → ON (RWr10
, RWr11)
Synchronous input timing
information X0
ON → OFF (RWr12
, RWr13)
External input X0
(Status of the X0 terminal)