Primary and Secondary Error Codes
When PCR II Plus detects an error, it displays an error message on the
control panel message window. It also sends a primary code to the host
computer. This is a numerical value that represents the error. Sec-
ondary codes are additional numerical values that further define the
error.
This section lists the primary codes and describes the associated
secondary codes.
Programmers and service technicians can obtain the primary and as-
sociated secondary error codes by sending a Read Extended Fault Sta-
tus command from the host (GPIB version) or sending a Request Sense
command from the host (SCSI version).
Table 7.2 lists the primary error code numbers, the corresponding mes-
sage that appears on the control panel LCD, and a brief description of
the error.
Primary Code
83
84
91
92
93
A1
A2
Message
COMMAND BYTE
DATA BYTE
INTERNAL MEMORY
GPIB INTERFACE
SCSI INTERFACE
BRT CAL
CNT CAL
MODULE FAULT
FILTER WHEEL
Description
Illegal Command Byte
Illegal Data Byte
Memory Fault
GPIB Interface Fault
SCSI Interface Fault
Brightness Calibration Fault
Contrast Calibration Fault
Camera Module Fault
Filter Wheel Fault
Table 7.2. Primary error codes.
Appendix • A-13