RHEONIK RHE 07 User Manual

RHEONIK Messgeräte GmbH REV. I, Apr. 2004
.
Operation Manual RHE 07, 08, 11 Page 35
6.4. Examples with explanation
Example 1:
We have a 1 stage batch process (1 batch valve) and want to batch a quantity of 100 kg:
Pset
to be set on 100 kg
Pwarn
to be set on an estimated value depending on the delay time i.e.: 2 kg
If the option aoc
(automatic overflow control) is not activated the Pwarn value will always be acti-
vated at 98 kg and will close the valve. The Pset output will not be connected to any valve in this
configuration.
If "aoc" is active, the Pwarn value will be controlled or optimized automatically in such a way that the
Pset value will be reached after several batches.
Example 2:
We have a 2 stage batch process with one valve for the main flow and 1 valve for the small flow. The
output for Pset will be connected to the small flow valve and the output for Pwarn to the main flow
valve.
Pset to be set to 100 kg
Pwarn to be set to an estimated value depending on the delay time i.e.: 2 kg
The "aoc" can not be activated now !
The main flow valve will close at 98 kg and the small flow valve will close at 100 kg. This means that
still a very small overflow will appear. This can be eliminated by changing the Pset value to a smaller
corresponding value.
6.5. Serial interface and batch option
In addition to the standard serial interface requests and actions there are additional codes that can be
used with option code "batch" active only.
requests: format:
print Preset value: 7FH,7FH, ’#’ , <A> , ’BRs’ , ’?’ ,0D,0A,7FH,7FH
print Prewarn value: 7FH,7FH, ’#’ , <A> , ’BRw’ , ’?’ ,0D,0A,7FH,7FH
write Preset value: 7FH,7FH, ’#’ , <A> , ’BWsXXXXXXXEE’ ,0D,0A,7FH,7FH
write Prewarn value: 7FH,7FH, ’#’ , <A> , ’BWwXXXXXXXEE’ ,0D,0A,7FH,7FH
X: ‘0’ , ‘1’ , ... ’9’ or ‘.’
EE: mass unit characters i.e. ‘kg’
Actions:
batch Start
: 7FH,7FH, ’#’ , <A> , ’Bst’ ,0D,0A,7FH,7FH
batch Stop
: 7FH,7FH, ’#’ , <A> , ’Bsp’ ,0D,0A,7FH,7FH
batch Clear
: *
)
7FH,7FH, ’#’ , <A> , ’Bsc’ ,0D,0A,7FH,7FH
*
)
not for program versions before 1.24 (M221299)

RHEONIK RHE 07 Specifications

General

Brand	RHEONIK
Model	RHE 07
Category	Measuring Instruments
Language	English