Rockwell Automation 1771-DB Basic Module User Manual - Series A - Manual (Page 159)

Error Messages and Anomalies
Chapter 9
9–7
INVALID BAUD RATE ENTERED — This error occurs when a baud rate
other than 300, 600, 1200, 2400, 4800, 9600 or 19.2K bps is PUSHed
using CALL 78.
INCOMPLETE ROM PROGRAM FOUND — This error occurs when
CALL 81 detects an incomplete program in the EPROM. You can burn no
additional programs onto this PROM. All earlier programs are still
accessible.
NO PROGRAM FOUND BUT THE PROM IS NOT BLANK —
This
error occurs if miscellaneous data is found on a “blank” PROM using
CALL 81. You should clear the PROM before using it.
NEGATIVE VALUE NOT VALID —
This error occurs if you attempt to
convert a negative number using CALL 21.
Anomalies are deviations from the normal. Anomalies in the BASIC
Module can occur as the module compacts or tokenizes the BASIC
program. The known anomalies and cautions are as follows:
1. When using the variable H after a line number, put a space between the
line number and the H. If you do not, the program assumes that the line
number is a HEX number.
Examples:
Wrong Right
u20H=10 u20 H=10
uLIST uLIST
32 =10 20 H=10
9.3.6
Miscellaneous CALL
Error Messages
9.4
Anomalies