Download PRECISION TIME BASE - PTB 605

STATUS MESSAGES
QP
List Stored Parameters
This QP command requests the PTB to send a complete list of
settings. Within the context of this query, the PTB will also send
information on the state of the batteries:
BATTERY OK
Battery condition OK
BATTERY LOW
Battery condition compromised - reduced capacity
MEMORY FULL
At any time during normal operation, when the memory
capacity fills up to the extent that only 1000 more times can be
memorized before the PTB begins to overwrite the oldest time
data in memory this message will be sent to the PRINTER and
COMPUTER ports
PRINTER ON
Whenever a printer is attached to the PTB and the “Ready”
mode (DTR Pin 8 on the PTB PRINTER port) is activated, this
message will appear.
PRINTER OFF
Likewise, if the attached printer goes off line, this message
will appear
PRINTER AND DISPLAY PORT MESSAGES
Any message from the computer can be sent to the PTB in ASCII using the same COM
port that accepts the TOD data from the PTB. Messages destined for the display or printer
attached to the PTB must be enclosed between the following commands:
LPOn
LAOf
Beginning of message to be printed.
End of message being printed.
Similarly, data destined for a device such as a display board
attached to the PTB’s DISPLAY port is sent between the
following commands:
LLOn
LAOf
Beginning of message to be displayed.
End of message being displayed.
These 3 commands must be followed by other characters for proper operation.
Consult Chapter 13 for a thorough description of the operation of these commands.
TIMER IDENTIFICATION
PN1234
certain
Each individual PTB timer has its serial number imbedded in
data strings, such as during power up, with a new SESSION,
and SYNCHRO. In this example, unit # 1234 is identified
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