16. Device configuration
or 57.6, 115.2 kbaud (taking care not to exceed the maximum baud rate for the
interface module). The baud rate setting is saved to the EEPROM on the inter-
face module and thus applies when any other ALMEMO
®
device is used.
To set the baud rate, function (see 9.5)
Baud rate 9600 baud
Data format:
8 data bits, 1 stop bit, no parity (cannot be changed)
16.4 Device Address and Networking
All ALMEMO
®
devices can also be networked together very easily thus en-
abling the user to centrally acquire and record measured values from several
measuring instruments - even if these are located far apart. (see Manual, 5.3)
To communicate with networked devices it is absolutely essential that all the
devices concerned should have the same baud rate setting but that each
should have its own dedicated address; this ensures that only one device re-
sponds per command. Before starting network operation ensure therefore that
all the measuring instruments involved are assigned different device ad-
dresses. For this purpose use the
Device address
function. On leaving the fac-
tory address 00 is normally set.
To set the device address
(see 9.5)
Device address: 00
16.5 Data communications
For data retrieval and programming we provide a comprehensive ALMEMO
®
protocol (described in the Manual, chapters 6 and 7).
Since this high-precision instrument exceeds the standard ±16-bit range limits
(65000), certain sensor parameters (e.g. base value, factor, zero-point, gain,
limit values, analog scaling) are not available. Measured value correction is
performed using just one 24-bit multi-point correction system. Data retrieval
should be performed using the table format; this is also supported by the Win-
Control data acquisition program.
To display measured values in list format - together with channel, overflow indi-
cation, range, and comments text - a new command is provided in the table
format.
f1 P35 (
individual channels with
Mxx P35)
00;;20,044;°C;P314;HT
01;;26,962;°C;P314;TT
02;;942,6;mb;AP ;air pressure
11;;54,27;%H;P2Uw;r. humidity
21;;17,06;°C;P2td;dewpoint
34 ALMEMO
®
1036
