Hint:
•
Always use formatted labelled diskettes.
•
All data on diskette is overwritten once it has been placed into the unit.
•
In normal operation the amount of diskette memory used is displayed in the top right
hand corner of the screen (“Disk: xx %” or “ATA: xx.x%”).
•
Lines “-” in the disk display mean there is no diskette in the drive.
•
Always operate the push button marked “Diskette” before removing the disk. The
actual data block is finished and then copied to the diskette. This makes sure that
all data up to the last storage is available.
•
Dependent on the unit configuration (see “Setting up unit - Set up”) a message is
displayed on the screen before the diskette is 100 % full. This message must be
acknowledged.
•
Update and change the diskette before changing any unit parameters.
Reason: The internal unit memory and the diskette data is deleted and overwritten
with new data when parameters are changed.
•
The unit remembers what data has been transferred to the diskette. If the diskette
has not been changed on time or a new diskette has not been placed in the drive
the new diskette is filled with the missing data, so long as it is still available.
Because measured value recording has highest priority it can take up to 15 min. to
copy 1MB of data to diskette (approx. 20 sec. when using the ATA flash disk).
•
The drive LED is illuminated during data save to the ATA flash memory card. The
ATA flash memory card must not be removed during this procedure!
•
There is no automatic data save (can be ended bymanual initialisation) for a period
of 5 min. after inserting the ATA flash card. This gives the possibility to test the ATA
flash card “contents” (“ATAFlash —> Info”), or to save/load a parameter file. For this
time during normal operation “*ATA” is displayed in the top right header.
7. Serial interface/modem/Ethernet
7.1 RS 232
The RS 232 serial interface can be found at the front of the unit (3.5 mm stereo socket
under the diskette drive) as well as on the rear of the unit (9 pin Sub D socket).
Attention
:
Simultaneous use of the front and rear RS232 interfaces is not permitted.
Unit will malfunction!
7.2 RS 422/RS 485
These interfaces can be found as an alternative on the unit rear panel.
RS 422 and RS 485 can be used for remote setting up/read out of data (up to approx.
1000 m cable length). Please make sure that when using an RS 232/RS 485 convertor
this supports automatic switching between transmitting and receiving (e.g. W+T type
86000).
7.3 PROFIBUS DP
When connected to PROFIBUS DP measured values can be displayed, recorded and
monitored. These measurement points are treated in the same way as conventionally
wired analogue signals.
Both PROFIBUS and conventionally connected signals can be used simultaneously
on one unit. This is due to the fact that the input signal for each channel can be
separately selected. Up to a total of 16 measurement points (with the additional digital
and mathematics channels) are available per unit.
The RS 485 interface is physically used for this (Baud rate 93.750 kBit/s, alternatively
45.45 kBaud, these are fixed).
A selection between the operation modes “Monitor” and “Master” (see “Set-up -
Sundries - PROFIBUS DP”) can be made.
6. Handling in operation
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