beautypg.com

Status reporting – Teledyne 6200E - Sulfides Analyzer User Manual

Page 144

background image

Operating Instructions

Model 6200E Instruction Manual

144

M6200E Rev: A1

• Floating-point numbers are used to specify continuously variable values such as

temperature set points, time intervals, warning limits, voltages, etc. They consist of an

optional plus or minus sign, followed by zero or more digits, an optional decimal point, and
zero or more digits. (At least one digit must appear before or after the decimal point.)

Scientific notation is not permitted. For example, +1.0, 1234.5678, -0.1, 1 are all valid
floating-point numbers.

• Boolean expressions are used to specify the value of variables or I/O signals that may

assume only two values. They are denoted by the keywords ON and OFF.

• Text strings are used to represent data that cannot be easily represented by other data

types, such as data channel names, which may contain letters and numbers. They consist of
a quotation mark, followed by one or more printable characters, including spaces, letters,

numbers, and symbols, and a final quotation mark. For example, “a”, “1”, “123abc”, and
“()[]<>” are all valid text strings. It is not possible to include a quotation mark character

within a text string.

• Some commands allow you to access variables, messages, and other items, such as iDAS

data channels, by name. When using these commands, you must type the entire name of
the item; you cannot abbreviate any names.

6.12.2.5. 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 (Section 6.10.8., Table 6-18).

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

Where

X

is a command type designator, a single character indicating the message
type, as shown in the Table 6-25.

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, iDAS reports, variable values, etc.