Reset Limiting; Block Errors; Modes - Emerson Oxymitter 5000 Instruction Manual

Oxymitter 5000

RESET LIMITING

BLOCK ERRORS

Table E-2. BLOCK _ERR
Conditions

MODES

E-8
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 E-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
Number Condition Name and Description
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.
Instruction Manual
IM-106-350, Rev 2.2
July 2008