I/O PORT DATA INPUT/OUTPUT
Example:
• User inputs $p125
• Unit responds with S00 E125 01 056.12:13:45.1234567 CR/LF
The above example is event status 00, event number 125, event channel number 01, 56 days, 13
hours, 13 minutes, 45 seconds, and 123.4567 milliseconds.
4.10 ENABLE SINGLE EVENT LOG
This command enables the event log option. It consists of the log-on command followed by
three digits. Entering “111” signifies that the positive/rising edge of the input pulse is the on-
time edge of the event. Entering “000” signifies that the negative/falling edge of the input pulse
is the on-time edge of the event.
When sent, this command automatically disables the 1pps time interval function.
• The user inputs $1 (HEX 24/HEX 6C) and 3 digits.
• The unit will respond with OK, followed by CR/LF.
Example: 000
The above example will enable the single event log. The on-time edge of the input pulses will
be the negative/falling edge.
4.11 DISABLE SINGLE EVENT LOG
This command disables the event data log.
• User inputs $m (HEX 24/HEX 6D).
• The unit responds with OK CR/LF.
4.12 SELECT MODE
This command allows the user to select the mode of operation. This one digit command
indicates the following modes:
0 = AUTO Mode.
1 = Stationary Mode (Timing Mode).
4 = Dynamic.
5 = Flywheel Mode.
Symmetricom Inc ET6xxx ExacTime GPS TC & FG (Rev C) 4-9
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