Setting The System Time And Date - Racal Instruments 1269 User Manual

1269 User Manual
Setting The System
Time and Date
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no parity
8 data bits
Suppose also that the following configuration is desired:
9600 baud
1 stop bit
even parity
7 data bits
Then the parity must be programmed BEFORE the number
of data bits is programmed.
program the number of data bits to 7 before the parity is set
to even, then an illegal combination would (temporarily)
result. That is, the combination would be:
9600 baud, 1 stop bit, no parity, 7 data bits
which is NOT allowed. Thus, the commands must be sent
in the following order:
SYSTEM:COMM:SERIAL:PARITY
SYSTEM:COMM:SERIAL:BITS
Note that the order of programming will have to change
based upon what the present configuration is and what the
desired configuration is. That is, if we go from:
9600 baud, 1 stop bit, even parity, 7 data bits
to:
9600 baud, 1 stop bit, no parity, 8 data bits
Then the number of data bits must be programmed first.
The EMS has an on-board battery-backed time of day
clock. This clock keeps track of both time and date. The
time and date are used for time stamping the alarm
conditions so they may be read back by the user. They
may also use this feature to obtain the date and time.
The system time may be set using the command:
SYSTEM:TIME <hour>,<minute>,<second>
where:
<hour> ranges from 0 to 23
<minute>
Using The Enhanced Monitoring System 4-31
If an attempt is made to
EVEN
7
ranges from 0 to 59