Flowserve MX/QX Profibus DP/PA Field Unit - Manual (Page 49)

49
PB DPV1 / PA Field Unit Installation and Maintenance FCD LMENIM2336-03 – 12/12
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The FSAFE_VALUE_D (acyclic) parameter is the default value for the OUT_D parameter if a sensor
electronic fault is detected (e.g., the Transducer Block is unable to communicate with the actuator
hardware).
Supported Modes
Out of Service (O/S), Manual (Man), and Automatic (Auto) modes are supported. If Manual is
allowed, the operator may write a value to OUT_D using a configuration tool.
Simulate (acyclic)
For commissioning and test purposes, the input value from the transducer block going to the
Discrete Input function block can be simulated. That means the transducer and DI-FB will be discon-
nected when simulation is enabled. The network user can provide the DI block with “fake” process
data to test other portions of the system.
This feature requires the installation of a hardware jumper on the MX/QX PB unit, located on header
X5, Pins 3-4.
Figure 3.8 – Summary of the Parameters of the Discrete Input Function Blocks
DI
Function
Block
OUT_D
Standard Configuration Parameters
(Acyclic Data)
Example: CHANNEL
INVERT
SIMULATE
Process Parameter
(Cyclic Data)
Figure 3.9 – Discrete Input Function Block
Discrete Input Function Block
Enable
Simulate
Valve and
Status FB Algorithm
Operator
Value Status
Value
Off
On
Value Status
Fail Safe
MODE- and STATUS-
Handling
OUT
OUT
Operator
AUTO
Status
MAN
Out of
Service
OUT_D
Simulate Parameter
Acyclic Configuration Parameters
PV_D from Transducer
Block Selected Channel
Typical for Discrete Position,
Faults, or Alarms
Data from
Actuator Hardware
Cyclic Process
Parameter
To Network User
Status