Burkert Type 8643 User Manual
Page 45

45
Configuring the network
Description of the block parameters of the function block
9.2.3.5.
parameter
Description
rEaDBaCk_D
This parameter returns the position of the valve and the sensors.
Bit 7 6 5 4 3 2 1 0
0 0
Do not initialize
0 1
Closed
1 0
Open
1 1
On the move
Status sensor 1
Short-circuit sensor
No-load sensor 1
Status sensor 2
Short-circuit sensor
No-load sensor 2
1 = active
0 = inactive
sp_D
Set-point value
Bit 0 in the value specifies the valve position. The transferred status must be a
“good” status, e.g. 0x80.
out_D
Process value of the valve position. Bit 0 in the value indicates the valve position.
rCas_in_D
Set-point value in the RCAS status (Remote Cascade). Bit 0 in the value specifies
the valve position. The transferred status must be a “good” status, e.g. 0x80.
rCas_out_D
Process value of the valve position in the RCAS status. Bit 0 in the value indicates
the valve position.
ChannEl
Indicates the transducer block. There are channels 1-4. The function blocks are per-
manently assigned.
inVErt
Inverts the set-point value in the AUTO or RCAS status0 = do not invert1 = invert
fsaVE_timE
Time in seconds after which the “Failsave” action starts following a break in the
cyclic communication. The maximum value for this time is approx. 18 hours.
fsaVE_typ
Response to “Fail save”
0 = Valve retains the last status
1 = Valve switches according to FSAVE_VAL_D
2 = Isolate valve
fsaVE-Val-D
Valve position in “Fail save”, if selected.
simulatE
Allows the simulation of READBACK_D
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Type 8643 PA