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4. Other Radio Settings
2. Enable the
1 PPS Enable/Delay
parameter on the I/O Slaves.
Calibrate an I/O Slave in 1PPS Enable/Delay Mode
1. Trigger an oscilloscope on the 1 PPS pulse on the DTR line of the I/O Master.
2. Monitor the CD line of the I/O Slave.
3. If the timing on the I/O Slave differs from the I/O Master it may be adjusted using the value in
the I/O Slave's
1 PPS Enable/Delay
parameter. The difference in time between each
incremental integer value is 542.534 ns. Changing the parameter to higher values
decreases the I/O Slave time delay and changing the parameter to lower values increases
the time delay.
When properly calibrated, the CD line I/O Slave radio outputs a pulse that goes high for about 2
ms in synch with the 1 PPS pulse on the I/O Master. The output on the I/O Slave occurs within 20
microseconds of the input to the I/O Master.
Important!
: When
1 PPS
is enabled, the I/O Master must have a 1 PPS pulse on its DTR pin,
otherwise the RF network does not function.
4.2.2 Diagnostics
Diagnostics
Setting
Description
Default Setting:
0 (Disabled)
Options:
Any number between 0 and 128
Terminal Menu:
(5) Edit MultiPoint Parameters > (B) Diagnostics
Description:
l
Allows diagnostics data in the Network Diagnostics application within
Tool Suite
to be viewed at the I/O Master in parallel with application data.
l
The setting in this parameter determines how many slots out of 128 are
dedicated to diagnostics.
Example
: If set to 10, 1 out of every 10 data slots is for diagnostics
data; if set to 100, 1 out of every 100 data slots is for diagnostics data.
Note
: Diagnostics is always secondary to actual transmitted data.
4.2.3 DTR Connect
DTR Connect
Setting
Description
Default Setting:
(0) Off
Page 68 of 131
LUM0008AG Rev Sep-2015
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