FUNCTION CODE DEFINITIONS
ENHANCED CALIBRATION COMMAND FUNCTION CODE (FC 217)
C - 10
I-E96-301B
®
Errors encountered during calibration of a particular channel
are also reported as an output (N + 1) to this function block.
This output will reflect the status for the channel referenced in
the most recent calibration command.
Function code 217 uses 24 bytes of NVRAM and 156 bytes of
RAM memory in the MFP module.
Function code 217 has five output values:
•
The first represents the value of the input signal, uncor-
rected for any errors or nonlinearities. This output value
spans a range of -100 to +100 for the full range of an input
channel and represents an ideal conversion of the A/D
count value for the channel to this range.
•
The second output gives the calibration status for the last
calibration operation performed on the referenced channel.
•
The third and fourth outputs give the user-specified gain
and offset adjustment values for the referenced channel.
These will be initially 1.0 and 0.0, respectively, until
changed by the user.
•
The fifth output gives the detailed status of the most
recently issued calibration command. The block output
values will be updated only when a calibration command is
issued.
Table
lists the outputs of function code 217.
The following block outputs are updated each time a calibra-
tion command is issued. The values reflect the slave channel
specified with the calibration command. Table
describes
the outputs of function code 217. Table
lists the specifi-
cations of function code 217.
Table C-9. FC 217 Outputs
Block No.
Data Type
Description
N
REAL
Uncorrected value of input signal.
N+1
REAL
Channel calibration status.
N+2
REAL
User gain adjustment.
N+3
REAL
User offset adjustment.
N+4
REAL
Calibration command status.