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Teledyne API - Model 200EH/EM Operation Manual Operating Instructions
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6.15.2.5. Status Reporting
Reporting of status messages as an audit trail is one of the three principal uses for the RS-232 interface (the
other two being the command line interface for controlling the instrument and the download of data in electronic
format). You can effectively disable the reporting feature by setting the interface to quiet mode (see Section
6.11.8., Table 6-14).
Status reports include iDAS data (when reporting is enabled), warning messages, calibration and diagnostic
status messages. Refer to Appendix A-3 for a list of the possible messages, and this section for information on
controlling the instrument through the RS-232 interface.
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 6-31.
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, iDAS
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.
6.15.2.6. Remote Access by Modem
The M200EH/EM 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 Instruments
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 M200EH/EM 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 6.11.8). 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.
04521C (DCN5731)