Owner's manual
Table Of Contents
- Foundation™ Fieldbus Blocks
- Foundation™ Fieldbus Technology and Fieldbus FunctionBlocks
- Analog Input (AI) FunctionBlock
- Analog Output (AO) Function Block
- Arithmetic Function Block
- Discrete Input (DI) Function Block
- Discrete Output (DO) Function Block
- Integrator (INT) FunctionBlock
- Input Selector (ISEL) FunctionBlock
- Proportional/Integral/Derivative (PID) Function Block
- Signal Characterizer (SGCR) Function Block
- Diagnostics (ADB) Transducer Block
- Applications
- Analog input (AI) Function Block
- Analog Output (AO) Function Block
- Arithmetic (ARTH) Function Block
- Discrete Input (DI) Function Block
- Discrete Output (DO) Function Block
- Input Selector (ISEL) Function Block
- Integrator (INT) Function Block
- Proportional/ Integral/Derivative (PID) Function Block
- Signal Characterizer (SGCR) Function Block
- Index
9-11
Proportional/Integral/Derivative (PID) Function Block
Mode sheds from
ROUT to MAN
Remote output value Host system is not writing ROUT_IN
with a quality and status of “good
cascade” within shed time (see 2
below).
Shed timer The mode shed timer, SHED_RCAS, in
the resource block is set too low.
Increase the value.
Process and/or
block alarms will
not work.
Features FEATURES_SEL does not have Alerts
enabled. Enable the Alerts bit.
Notification LIM_NOTIFY is not high enough. Set
equal to MAX_NOTIFY.
Status Options STATUS_OPTS has Propagate Fault
Forward bit set. This should be cleared
to cause an alarm to occur.
TABLE 9-4. Troubleshooting
Symptom Possible Causes Corrective Action