53
Fieldbus Valve Coupler FD0-VC-Ex4.FF
Function blocks DO and DI
Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
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CHANNEL
W
S
OOS
This parameter has to be made 5 for the function block to connect to the trans-
ducer blocks.
PV_FTIME
W
S
Time in seconds for which the PFC sensor values have to be stable before
they are passed on to PV_D. It is recommended to set the value to 0, other-
wise undesired behavior may occur.
FIELD_VAL_D
Contains the currrent PFC sensor values , which are measured by the trans-
ducer blocks and are transmitted to the function block.
UPDATE_EVT
This parameter is used to signal to the control system that a parameter
marked by "S" was overwritten if the control system supports alarm mes-
sages.
BLOCK_ALM
This parameter is used to signal diagnosis messages which are displayed in
BLOCK_ERR to the control system, if the control system supports alarm mes-
sages.
ALARM_SUM
The current status of the alarm messages of the block.
ACK_OPTION
S
W
Determines if alarms of the function block have to be confirmed or not.
DISC_PRI
S
W
Priority of discrete alarm
DISC LIM
S
W
Discrete input state, in which an alarm should be generated.
DISC_ALM
S
W
The current state of the discrete alarm, along with a time and date stamp.
Parameter
Char.
Description