Instruction Manual
D103412X012
Detailed Setup—AI Function Block
July 2013
176
Troubleshooting
Refer to table 4‐56 to troubleshoot any problem that you encounter.
Table 4‐56. Troubleshooting
Symptom Possible Causes Corrective Action
Mode will not leave OOS
Target mode is not set Set target mode to something other than OOS
Configuration error
BLOCK_ERR [6] will show the configuration error bit set. The
following are parameters that must be set before the block is
allowed out of OOS:
CHANNEL [15] must be set to a valid value and cannot be
left at initial value of 0.
XD_SCALE [10]. UNITS_INDEX must match the units in the
transducer block channel value.
L_TYPE [16] must be set to Direct, Indirect, or Indirect
Square Root and cannot be left at an initial value of 0.
Resource block
The actual mode of the Resource block is OOS. See Resource
Block Diagnostics for corrective action.
Schedule
Block is not scheduled and therefore cannot execute to go to
Target Mode. Schedule the block to execute.
Process and/or block alarms will not work
Features
FEATURES_SEL [18] in the resource block does not have Alerts
enabled. Enable the Reports Supported bit.
Notification
LIM_NOTIFY [32] in the resource block is not high enough. Set
equal to MAX_NOTIFY [31], also in the resource block.
Status Options
STATUS_OPTS [14] has Propagate Fault Forward bit set. This
should be cleared to cause an alarm to occur.
Value of output does not make sense
Linearization Type
L_TYPE [16] must be set to Direct, Indirect, or Indirect Square
Root and cannot be left at an initial value of 0.
Scaling
Scaling parameters are set incorrectly:
XD_SCALE.EU0 and EU100 should match that of the trans
ducer block channel value.
OUT_SCALE.EU0 and EU100 are not set properly.
Cannot set HI_LIMIT [28], HI_HI_LIMIT [26],
LO_LIMIT [30], or LO_LO_LIMIT [32] VALUES
Scaling
Limit values are outside the OUT_SCALE.EU0 and
OUT_SCALE.EU100 values. Change OUT_SCALE [11] or set
values within range.
AI Function Block Parameter List (table 4‐57)
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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