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502 010 05
If the PI-regulator is selected for Output3, then it is not possible to select Batch control or
Limit switch for Output2 at the same time, because the Setpoint register is used for both
functions.
3-phase output mode is described in section 8, 3-phased output signals .
With Output2 function Sign for Output3, means Output2 is OFF for positive flow.
During TEST-mode the flow is not calculated by the transmitter, and can thus be inserted in
the Flow register, e.g. using the display unit.
See also the Flow control application example in the
figuration of the Code2 register.
P-NET SWNo. 27: Code3
The contents of Code3 defines the digital filter for Flow, selects the calculation of flow direc-
tion and temperature, defines the function for Input1 and holds the P-NET node address for
the Flow Transmitter.
The data type for Code3 is a LongInteger, which may be considered as 8 digits in hexa-
decimal readout. The first 6 digits represent and select one of the above-mentioned op-
tions. Digits 7 and 8 are not used and should be set to 0. The information must be inter-
preted as shown below (only digits 1 to 6 are applicable to the PD 210 display unit):
Dig. 1
Dig. 2
Flow unit
Calculation
Time const.
of Flow
Unit/min
Unidirectional
0
Time = 0.15 s
flow<0.2% =0
Unit/hour
1
Time = 0.15 s
Unit/min
2
Unidirectional
Time = 1.0 s
Unit/hour
3
Time = 1.0 s
Unit/min
Bidirectional
4
Time = 5.0 s
flow<0.2% =0
Unit/hour
5
Time = 5.0 s
Unit/min
6
Bidirectional
Time = 10.0 s
Unit/hour
7
Time = 10.0 s
The positive flow direction is indicated by an arrow on the meterhead. When metering in
both directions, flow in the direction of the arrow is registered as positive flow, and flow in
the opposite direction of the arrow is registered as negative flow. When set to measure in
one direction only, flow in the opposite direction to the arrow is ignored.
36/55
PD 210 display address: E8, Function selector Code3
Dig. 3
Dig. 4
Calculation
Input1 func-
of Temp.
tion
Stop counters
Unit = °C
=> no error
Stop counters
Unit = °F
=> error = 05
Clear Volume2
Start Batch
Flow Transmitter, PD 340
Flow control
section for a specific con-
Dig. 5
Dig. 6
P-NET node
address
Two-digit num-
ber: 01..7D
7
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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