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502 010 05
Note:
Be sure that the frequency on the output does not exceed 1000 Hz.
If the Output3 function is for current output , 4 - 20 mA, Scale will indicate the full-scale
value of the data for the current output.
Example : Full scale (20 mA) is required to be the current output at 15000 litres per hour.
The number 15000 is inserted in Scale. 4 mA always equals a measured result
of 0.
If the function of Output3 is a PI-regulator , Scale will indicate the proportional band of the
regulator. The proportional band for a regulator is the change required in the input signal to
give a change from 0 to 100% in the output signal (without I). The proportional band is de-
fined in the same unit, as the input signal to the regulator - e.g. m
See also the application example
Please consult the specialist literature on the subject of process control for further informa-
tion on how to set the regulator parameters for particular purposes.
P-NET SWNo. 25: Code1
Various measurement results can be read out from the Flow Transmitter using the display
unit. Code1 is used to determine how many digits appear after the decimal point when dis-
playing each of these values. The resolution may be in the range from 0 to 6.
The data type for Code1 is a LongInteger, which may be considered as 8 digits in hexa-
decimal readout. The first 6 digits represent and select the resolution for one register. Digit
7 and 8 are not used and should be set to 0. The information must be interpreted as shown
below (only digits 1 to 6 are applicable to the PD 210 display unit):
Digit 1
Digit 2
Flow
TCFlow
For digit 3 - Volume1 and digit 4 - Volume2, the resolution also determines the maximum
value for the counters, i.e. the overflow value
Example : The size of the transmitter is 80 m
resolution of 0.01 m
mal point).
When the Output2 function is for pulse output, 0 - 10 Hz, the resolution on Volume1 indi-
cates the resolution on the display read out as well as the pulse output. Output2 will give a
pulse each time the least significant digit changes on the display.
Example : In MeterSize the size of the transmitter is specified to be 20 m
1 pulse is required for each 0.01 m
digits after the decimal point).
34/55
Flow
control.
PD 210 display address: E6, Display resolution
Digit 3
Digit 4
Volume1
Volume2
See also the description for
3
/h. Flow is requested on the display with a
3
/h. Set digit 1 in Code1 equal to 2 (2 digits after the deci-
3
Flow Transmitter, PD 340
3
/h.
Digit 5
Digit 6
Setpoint
Instantflow
(10 litres). Digit 3 in Code1 is set to 2 (2
7
8
Volume1.
3
/h. On Output2,
Manual
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