Specifications

A.4 Controller Messages
From time to time, the PK-900 will generate messages informing you
of its status. Error messages will also be generated if the PK-900
did not understand a command you have entered. This section describes
the PK-900's messages and the circumstances which cause them.
A.4.1 General Status Messages
Sign-On Message
AEA PK-900 Data Controller
Copyright (C) 1986 - 1992 by
Advanced Electronic Applications, Inc.
Release DD-MMM-YY
cmd:
The sign-on message appears when you turn on your PK-900, after
system "RESTART" or "RESET" after the autobaud routine. The release
date is updated whenever the firmware is changed. Please write the
date on the first page of this manual in case it is needed.
PK900 is using default values
This message appears the first time you turn on your PK-900 or every
time you turn the PK-900 on if the battery jumper is removed. The
message will also appear in response to the RESET command.
cmd:
This is the Command Mode prompt. When this prompt appears, the
PK-900 is waiting for you to issue a command. Anything you type
after this prompt is interpreted as a command to the PK-900.
was
now
Whenever you change one of the PK-900's parameters, both the previous
value and the new value are displayed.
bbRAM scanned, checksum failed!
This message indicates there has been an error in the battery backed
RAM. A low lithium battery is the likely cause for this.
ERROR: Subroutine, Bank, Addr
This message indicates a program error has occurred. Write down any
information accompanying this message and call AEA's Technical Support
department. If possible, print a DISPLAY Z parameter listing.
ROM error, checksum $xxxx
This message indicates there has been a failure in the PK-900. If
this message appears, call AEA's Technical Support department.
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