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Remote Operation Teledyne API – T101 Operation Manual
150
5.1.2.6. General Message Format
All messages from the instrument (including those in response to a command line request)
are in the format:
X DDD:HH:MM [Id] MESSAGE<CRLF>
Where
X is a command type designator, a single character indicating the
message type, as shown in the Table 4-25.
DDD:HH:MM is the time stamp, the date and time when the message was
issued. It consists of the Day-of-year (DDD) as a number from 1
to 366, the hour of the day (HH) as a number from 00 to 23, and
the minute (MM) as a number from 00 to 59.
[ID] is the analyzer ID, a number with 1 to 4 digits.
MESSAGE is the message content that may contain warning messages, test
measurements, DAS reports, variable values, etc.
<CRLF> is a carriage return / line feed pair, which terminates the
message.
The uniform nature of the output messages makes it easy for a host computer to parse
them into an easy structure. Keep in mind that the front panel display does not give any
information on the time a message was issued, hence it is useful to log such messages for
trouble-shooting and reference purposes. Terminal emulation programs such as
HyperTerminal can capture these messages to text files for later review.
5.1.2.7. Remote Access by Modem
The T101 can be connected to a modem for remote access. This requires a cable between
the analyzer’s COM port and the modem, typically a DB-9F to DB-25M cable (available
from Teledyne API with part number WR0000024).
Once the cable has been connected, check to make sure the DTE-DCE is in the correct
position. Also make sure the T101 COM port is set for a baud rate that is compatible with
the modem, which needs to operate with an 8-bit word length with one stop bit.
The first step is to turn on the MODEM ENABLE communication mode (Mode 64,
Section 4.10.8). Once this is completed, the appropriate setup command line for your
modem can be entered into the analyzer. The default setting for this feature is
AT Y0 &D0 &H0 &I0 S0=2 &B0 &N6 &M0 E0 Q1 &W0
This string can be altered to match your modem’s initialization and can be up to 100
characters long.
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