Instruction Manual
D103412X012
Detailed Setup—DI Function Block
July 2013
206
To use simulate, first install the simulate jumper in the terminal box, then set Simulate_D enable/disable to enabled,
then enter the desired values for Simulate Value and Status.
When SIMULATE_D [9] is enabled, the Simulate Active bit of the BLOCK_ERR [6] parameter is set (refer to the Block
Errors description). When the simulate jumper is installed, the Simulate Jumper bit of the transducer block parameter
SELFTEST_STATUS [78] is set.
Application Information
Figure 4‐32 compares the operation of a standard discrete input to a proximity discrete input. With the standard
discrete input, the discrete input changes state when the valve position passes a configurable trip point. This can be
used to indicate if the valve position is above or below the trip point.
Figure 4‐32. Proximity Discrete Input Compared to a Standard Discrete Input
Configurable
Band
DISCRETE
INPUT VALUE
0
0
1
0
1
STANDARD DISCRETE INPUT
PROXIMITY DISCRETE INPUT
DISCRETE
INPUT VALUE
With the proximity discrete input a configurable band can be established about a central point. Whenever the valve
position enters this configurable band, the discrete input changes state. A proximity discrete input is useful for
applications which require knowing the location of the valve when the valve is not near 0% or 100%.
DI Function Block Parameter List (table 4‐81)
Read/Write Capability: RO - Read Only, RW - Read Write
Mode: The block mode(s) required to write to the parameter
Double indentation and shaded Index Number indicates sub‐parameter
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