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3. External Connection
CNT-3208M-PE
39
Using Two or More Boards Synchronously
Synchronization control connectors
Simultaneous operation or event-synchronous control between boards partly depends on software
performance. The synchronization control connectors are provided to eliminate this problem by
improving the reliability of the entire system.
This one product can perform synchronous operation with a homogeneous or heterogeneous board by
connecting the synchronization control connectors.
For synchronous operation, select one of the boards connected with synchronization control cables as
the master board, with the other boards used as slaves. The master board can set the signal to be
supplied to the slaves using software. The slaves can set the signal from the master board as the pacer
clock operation start or stop factor.
It is possible to stop the operations of all boards in response to the stop signal from the master board at
an error or to the request from a slave. Up to 16 boards can be connected, including the master board.
For details on the connection method, refer to the online help for the driver software. When the
synchronization control connectors are not used, use the board in the stand-alone configuration.
Example 1 Using multiple boards with the same clock start/stop condition settings
The boards can make up a synchronous system independent of software performance as the clock
for the master board is started and stopped in sync with the slaves.
With the homogeneous boards, data maintains synchronism even if the channels are added. Even
with the heterogeneous boards, data maintains integrity because the operating clock start/stop
timings depend on the master board.
(1) Connect the boards with synchronization control cables.
(2) Specify the master and slaves using the software.
(3) Assign the connectors so that the clock start/stop signals are to be output from the master
board.
(4) Set the slave boards so that they can use all signals.
(5) Start the slave boards first, then the master board.
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When the clock signal is assigned to a synchronization control connector, the maximum clock
frequency available is 5 MHz.
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When signals are assigned to synchronization control connectors, the slave boards have a delay of
about 100 nsec.
CAUTION
Summary of Contents for CNT-3208M-PE
Page 7: ...vi CNT 3208M PE ...
Page 15: ...1 Before Using the Product 8 CNT 3208M PE ...
Page 30: ...2 Setup CNT 3208M PE 23 3 Click on the End button to finish condition setting Click on End ...
Page 35: ...2 Setup 28 CNT 3208M PE ...
Page 71: ...4 Functions 64 CNT 3208M PE ...