Instruction Manual
Instruction Manual
D103434X012
Blocks
November 2014
119
Application Information
The configuration of an AO function block and its associated output channels depends on the specific application. A
typical configuration for the Analog Output involves the following attributes:
PV_SCALE Set the range and engineering units to values that correspond to the operation range. For the
digital level controller, PV_SCALE [11] is typically set between 0 and 100%.
BKCAL_OUT If you are using the CAS_IN [17]
connector wired from another block, wire the BKCAL_OUT [25] attribute to the other block's
BKCAL_IN [27] attribute.
IO_OPTS Set the type of tracking and action upon fault state.
SHED_OPT Set the action to be taken when the set point or output are not updated in a remote mode.
Block Errors
Table B‐26 lists conditions reported in the BLOCK_ERR [6] parameter. Conditions in italics are not applicable for the AO
block and are provided only for your reference.
Table B‐26. BLOCK_ERR Conditions
Condition Number Condition Name and Description
0 Other (NA)
1 Block Configuration Error ‐ CHANNEL and SHED_OPT set to 0
2 Link Configuration Error (NA)
3 Simulate active ‐ Simulation is enabled and the block is using a simulated value in its execution.
4 Local Override ‐ Device in fault state. Actual mode LO.
5
Device Fault State Set ‐ AO block in fault state after FSTATE_TIME because of Bad status or IFS substatus on CAS_IN or Resource
block commanded fault state.
6 Device Needs Maintenance Soon ‐ Indicates a Maintenance PlantWeb Alert condition is active if Block Error Reporting is enabled.
7 Input failure/process variable has Bad status (NA)
8 Output failure ‐ PV has bad status.
9 Memory Failure (NA)
10 Lost Static Data (NA)
11 Lost NV Data (NA)
12 Readback Check Failed (NA)
13 Device Needs Maintenance Now ‐ Indicates Failed PlantWeb Alert condition is active if Block Error Reporting is enabled.
14 Power Up ‐ This condition exists after power up until actual mode is not Out of Service.
15 Out of Service ‐ The block is in Out of Service (OOS) mode.