Emerson Oxymitter 5000 Instruction Manual page 150

Model 4081FG Oxygen Analyzer with F
Reset Limiting
Block Errors
TABLE C-2. BLOCK_ERR Conditions
Modes
C-8
fieldbus Communications
OUNDATION
NOTE
Track Enable , Track in Manual , SP-PV Track in Man , SP-PV Track in LO
or IMan , Use PV for BKCAL_OUT , and Direct Acting are the only
control options supported by the PID function block. Unsupported
options are not grayed out; they appear on the screen in the same
manner as supported options.
The PID function block provides a modified version of feedback reset
limiting that prevents windup when output or input limits are
encountered, and provides the proper behavior in selector applications.
Table C-2 lists conditions reported in the BLOCK_ERR parameter.
Conditions in italics are inactive for the PID block and are given here
only for your reference.
.
Condition
Condition Name and Description
Number
0 Other
1 Block Configuration Error: The BY_PASS parameter is not configured and is
set to 0, the SP_HI_LIM is less than the SP_LO_LIM, or the OUT_HI_LIM is less
than the OUT_LO_LIM.
2 Link Configuration Error
3 Simulate Active
4 Local Override : The actual mode is LO.
5 Device Fault State Set
6 Device Needs Maintenance Soon
7 Input Failure/Process Variable has Bad Status: The parameter linked to IN is
indicating a Bad status.
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
15 Out of Service: The actual mode is out of service.
The PID function block supports the following modes:
Manual (Man)—The block output (OUT) may be set manually.
Automatic (Auto)—The SP may be set manually and the block
algorithm calculates OUT.
Cascade (Cas)—The SP is calculated in another block and is provided
to the PID block through the CAS_IN connection.
RemoteCascade (RCas)—The SP is provided by a host computer that
writes to the RCAS_IN parameter.
RemoteOutput (Rout)—The OUT is provided by a host computer that
writes to the ROUT_IN parameter.
Local Override (LO)—The track function is active. OUT is set by
TRK_VAL. The BLOCK_ERR parameter shows Local override.