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Remote Operation T400 Ozone Analyzer Operator’s Manual
180
8.4. PASSWORD SECURITY FOR SERIAL REMOTE
COMMUNICATIONS
In order to provide security for remote access of the T400, a LOGON feature can be
enabled to require a password before the instrument will accept commands. This is done
by turning on the SECURITY MODE (Mode 4, Section 6.2.1). Once the SECURIT
Y
MODE is enabled, the following items apply.
A password is required before the port will respond or pass on commands.
If the port is inactive for one hour, it will automatically logoff, which can also be
achieved with the LOGOFF command.
Three unsuccessful attempts to log on with an incorrect password will cause
subsequent logins to be disabled for 1 hour, even if the correct password is used.
If not logged on, the only active command is the '?' request for the help screen.
The following messages will be returned at logon:
LOGON SUCCESSFUL - Correct password given
LOGON FAILED - Password not given or incorrect
LOGOFF SUCCESSFUL - Connection terminated successfully
To log on to the T400 analyzer with SECURITY MODE feature enabled, type:
LOGON 940331
940331 is the default password. To change the default password, use the variable
RS232_PASS issued as follows:
V RS232_PASS=NNNNNN
Where N is any numeral between 0 and 9.
8.5. APICOM REMOTE CONTROL PROGRAM
APICOM is an easy-to-use, yet powerful interface program that allows the user to access
and control any of Teledyne API’ main line of ambient and stack-gas instruments from a
remote connection through direct cable, modem or Ethernet. Running APICOM, a user
can:
Establish a link from a remote location to the T400 through direct cable connection
via RS-232 modem or Ethernet.
View the instrument’s front panel and remotely access all functions that could be
accessed when standing in front of the instrument.
Remotely edit system parameters and set points.
Download, view, graph and save data for predictive diagnostics or data analysis.
Check on system parameters for trouble-shooting and quality control.
APICOM is very helpful for initial setup, data analysis, maintenance and trouble-
shooting. Figure 8-1 shows examples of APICOM’s main interface, which emulates th
e
look and functionality of the instruments actual front panel
06870C DCN6332