MC³ 24.96.EX O&M Manual Page 59 08/14/01 4:34 PM/LDD
Cnts
This display is the raw, digital representation of the total load as it is received directly from the
PCAD. It is the same as PCAD #1 If one PCAD is used. It is the average of PCAD #1 and PCAD
#2 if two PCAD’s are used.
Z Ld
This is the Zero Load, as set by the Zeroing Procedure, page 50.
An example for which it might be necessary to change this value directly, would be to return a scale
to a known Zero Value after the system has been reset or damaged in some way. After a good
Zero Calibration has been accomplished, it is a good idea to record this number for future
reference.
Settings
CAL, ZERO, GAIN, SET STAT.
A thorough discussion of the meanings of these setting is discussed in PCAD Settings on page 46.
Scale Factor
This number is the ‘Internal Scale Factor”. It is used to provide a relation between the PCAD
Counts (from the Load Cell signal) and the actual Belt Load in engineering units. It is set by various
calibration procedures. See Calibrating Your Controller, on page 48.
It is important to remember that modifying this value affects calibration directly.
An example for which it might be necessary to change this value directly, would be to return a scale
to a known calibration after the system has been reset or damaged in some way. After a good
calibration has been accomplished, it is a good idea to record this number for future reference.
Communication Diagnostics
This display is useful when troubleshooting serial communications.
Rx Buffer
This line displays the first 28 characters in the receiver buffer.
Tx Buffer
This line displays the first 28 characters in the transmitter buffer.
NOTE: Not all characters can be displayed so some may appear as spaces.
Error Counters
Counter Description
A Receive Errors on the character level, such as parity error, etc.
B Number of characters received with a format error
C Input Buffer Overrun Errors. The incoming telegram was too long.
Check the Start and End codes. See Numeric Parameters on
page 27
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