National Instruments FP-3000 - Manual (Page 82)

Appendix B Fieldbus Parameters
FieldPoint FP-3000 User Manual B-4 www.ni.com
BYPASS (Scaling, Tuning)
Allows the normal control algorithm to be bypassed if the CONTROL_OPT
parameter’s Bypass Enable option is selected. If control is bypassed, the
PID uses its setpoint value in percent of scale as its output value and does
not attempt to do any PID control.
CAS_IN (Process)
A remote setpoint value. If used, will be linked to an output of an upstream
block. In some blocks, may be left unlinked, and a local setpoint value
(typically SP) will be used instead.
CAS_IN_D (Process)
A remote setpoint value. If used, will be linked to an output of an upstream
block. In some blocks, may be left unlinked, and a local setpoint value
(typically
SP_D ) will be used instead.
CHANNEL (I/O, Process)
Used by I/O function blocks to select a physical I/O channel. This mapping
is defined by the manufacturer. In the FP-3000, this parameter is
automatically updated when the
FIELDPOINT_MODULE and
FIELDPOINT_CHANNEL parameters are modified.
Lost NV Data 0x0800 The device was unable to restore the values
of nonvolatile parameters after a restart.
Readback Check Failed 0x1000 The value read back from the output
channel does not match the value the
output channel was set to.
Device Needs Maintenance
Now 0x2000 The device needs to be maintained now.
Power-Up 0x4000 The device has just powered up.
Out of Service 0x8000 The block is currently out of service.
Table B-1. Error Codes (Continued)
Error Code Code Description