Appendix B:
Error & Warning Messages
Page 33
The 2800 is manufactured with pride and quality and is designed to provide years of trouble free operation. A vast
number of diagnostic messages have been included it the 2800's firmware to inform the system engineer and
operator of any abnormality that may occur. These messages fit into three general categories which are:
Hardware Failure Configuration & Communication Errors Operational Status
When an abnormality is encountered a message will appear on the display indicating the nature of the problem.
Some conditions will cause the 2800 to halt operation. Other conditions will cause a warning message to display
momentarily. Still other conditions will cause a message to simply remain on the screen until the abnormality is
corrected. Below is a list of some of the messages that may appear.
Category 1, Hardware Failure.
These conditions will cause the 2800 to halt operation.
Message displayed
Possible Cause
ROM CHECKSUM ERROR
This would occur if the units loaded firmware (Driver File) became corrupt.
INTERNAL RAM ERROR
On power-up the 2800 performs a read/write verification on installed RAM
memory. These messages would indicate a hardware failure.
EXTERNAL RAM ERROR
FAILSAFE CODE xxxx
This message would only occur if firmware became corrupt, if an intermittent
memory failure occurred, or if the 2800 firmware is not compatible with the
ScreenMaker project file.
TOO MANY VARIABLES
MAXIMUM IS 8
This messages would occur if two screens are triggered and they contain
more than eight variable fields.
INVALID RECIPE
Link Value
See Section 1 for information on the Recipe Linking.
Category 2, Configuration & Communication Errors.
The messages in this category may vary depending on the Host device that is being used with the 2800. In most
cases these messages are self explanatory. Below is a sample of some common messages that may be
displayed.
Message displayed
Possible Cause
SETUP FILE
NOT LOADED
Setup file must be downloaded using ScreenMaker 2000K.
COMMUNICATION CABLE
DISCONNECTED
RTS/CTS jumper is used to detect cable.
---NOTICE---
FUNCTION KEY ABORT
This occurs if a function key is pressed and it is unable to perform the required
variable read or write operation. It will appear momentarily.
PM2800U3K Revision 4
