Meilhaus RedLab 1608FS, Руководство пользователя

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RedLab 1608FS User's Guide Functional Details
23
Synchronizing multiple units
You can connect the SYNC pin of two RedLab 1608FS units together in a master/slave configuration and
acquire data synchronously from 16 channels. When the SYNC pin is configured as an output, the internal A/D
pacer clock signal is sent to the screw terminal. You can output the clock to the SYNC pin of a second RedLab
1608FS configured for A/D pacer input.
You set the function of the SYNC pin (pin 36) for pacer input or pacer output by using Insta Cal. By default, the
SYNC pin is set for pacer input. To synchronize a master RedLab 1608FS with a slave RedLab 1608FS and
acquire data from 16 channels, follow the steps below:
1. Run InstaCal.
2. Double-click on the RedLab 1608FS listing on the PC Board List on the InstaCal main form. The
Board Configuration dialog displays.
3. Configure the SYNC pin of the master RedLab 1608FS for pacer output:
o
Double-click on the RedLab 1608FS that you want to configure as the master. The
Board
Configuration
dialog opens.
o
Click to select the
Enable Sync output
check box and then click
OK
.
4. Configure the SYNC pin of the slave RedLab 1608FS for pacer input:
o
Double-click on the RedLab 1608FS that you want to configure as the slave. The
Board
Configuration
dialog displays.
o
Make sure that the
Enable Sync output
check box is not checked (unchecked is the default setting).
5. Connect the SYNC pin on the master RedLab 1608FS to the SYNC pin on the slave RedLab 1608FS.
6. Set the Universal Library EXTCLOCK option with cbAInScan()/AInScan() for the slave RedLab
1608FS to enable pacer output.
An example of a master/slave configuration is shown below.
Figure 12. Configuring for synchronous data acquisition
When you are operating one RedLab 1608FS, do not set the
EXTCLOCK
option unless you are using an external
clock for A/D pacing.
Slave
USB-1608FS
Master
RedLab 1608FS
Slave
RedLab 1608FS
SYNC pin
pin 36
Configure the
SYNC pin for output
Configure the
SYNC pin for the input
Set the Universal Libary
EXTCLOCK option with
cbAInScan () /AInScan ()
for the slave RedLab 1608FS