AI Function Block
March 2006
5-129
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. To enable simulation, you must
first install the Simulate Enable jumper across the
instrument AUX terminals (see page 2-25). Next you
must use the configuration tool to enable the
parameter SIMULATE [9].
With simulation enabled, the actual measurement
value has no impact on the OUT [8] value or the
status.
Block Errors
Table 5-54 lists conditions reported in the
BLOCK_ERR [6] parameter. Conditions in italics are
inactive for the AI block and are given here only for
your reference.
Table 5-54. BLOCK_ERR Conditions
Condition
Number
Condition Name and Description
0 Other
1
Block Configuration Error - the selected channel carries
a measurement that is incompatible with the engineering
units selected in XD_SCALE, the L_TYPE parameter is
not configured, or CHANNEL = zero.
2 Link Configuration Error
3
Simulate Active - Simulation is enabled and the block is
using a simulated value in its execution.
4 Local Override
5 Device Fault State
6 Device Needs Maintenance Soon
7
Input failure/process variable had Bad status - The
hardware is bad, or a bad status is being simulated
8 Output failure
9 Memory failure
10 Lost Static Data
11 Lost NV Data
12 Readback Check Failed
13 Device Needs Maintenance Now
14
Power Up − This condition exists until the AI function
block executes for the first time.
15 Out of Service - The actual mode is Out of Service.
5
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