Owner's manual

FOUNDATION
TM
Fieldbus Blocks Manual
5-2
FIGURE 5-2. Discrete Input
Function Block Schematic
I/O Selection To select the I/O associated with the discrete measurement, configure
the value of the CHANNEL attribute.
Simulation To support testing, you can either change the mode of the block to
manual and adjust the output value, or you can enable simulation
through the configuration tool and manually enter a value for the
measurement value and its status. In both cases, you must first set the
ENABLE jumper on the field device.
NOTE
All fieldbus instruments have an ENABLE jumper. As a safety
measure, the jumper has to be reset every time there is a power
interruption. This measure is to prevent devices that went through
simulation in the staging process from being installed with simulation
enabled.
With simulation enabled, the actual measurement value has no impact
on the OUT_D value or the status.
MODE None The mode record of the block. Contains the actual,
target, permitted, and normal modes. See System
Support
OUT_D None The discrete output value and status.
PV_D None The discrete process variable used in block execution.
SIMULATE_D None Enables simulation and allows you to enter an input
value and status when SIMULATE_IN_D is not
connected.
Parameters Units Description
fieldbus-fbus_10a
Discrete Signal
Invert
Option
Alarm
Detection
FIELD_VAL_D
SIMULATE_D
MODE
PV_D
OUT_D