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Fieldbus Valve Coupler FD0-VC-Ex4.FF
Parameterisation and operation of the valve coupler
Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
Fuchs Group • Tel.: G49 621 776-0 • USA +1 330 4253555 • Sin65 67799091 • Internet http://www.pepperl-fuchs.com
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1
082
27
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ssue
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3.2
006
Figure 6.2: Interface of DO function block/transducer block
6.4
Interaction of the transducer blocks and the DI function block
The DI function block can be used to read all 8 PFCs, independent of the DO function blocks. To this end,
he parameter "CHANNEL" has to be assigned the value 5. This establishes a connection to the transducer
blocks 1 to 4, which can be used to read out the PFC sensor values of the channels 1 to 4. These values
are then assigned to the respective bits of the parameter value "FIELD_VAL_D" according to the following
table:
Bit
Description
0
PFC sensor value A of channel 1
1
PFC sensor value B of channel 1
2
PFC sensor value A of channel 2
3
PFC sensor value B of channel 2
4
PFC sensor value A of channel 3
5
PFC sensor value B of channel 3
6
PFC sensor value A of channel 4
7
PFC sensor value B of channel 4
Function blocks
D
O
fu
nct
ion
b
loc
k 1
900
Transducer blocks
Tr
ansd
u
cer
b
lock
Chan
ne
l 1
-
500
Tr
ansd
u
cer
b
lock
Chan
ne
l 2
-
600
Tr
ansd
u
cer
b
lock
Chan
ne
l 3
-
700
Tr
ansd
u
cer
b
lock
Chan
ne
l 4
-
800
"Channel“=1
D
O
fu
nct
ion
b
loc
k 2
950
"Channel“=3
D
O
fu
nct
ion
b
loc
k 3
100
0
"Channel“=0
D
O
fu
nct
ion
b
loc
k 4
105
0
"Channel“=4
OUT_D
READBACK_D
Reference value
PRIMARY_VALUE_D
DO function block
Transducer block