Kistler-Morse KM Weigh II - Manual (Page 72)

Appendix C. Seral Comments
C-2
Character Definition
> Start of message character
aa Two-digit ASCII HEX character address of channel
d One-digit ASCII decimal number data
dd Two-digit ASCII decimal number data
dd.. Two-digit or more ASCII decimal number data
dd..dd Multiple ASCII decimal numbers
hh Two-digit ASCII HEX number, upper nibble, lower nibble
hh..hh Multiple two-digit ASCII HEX numbers
ss Two-digit ASCII HEX checksum of characters added between ‘>’ or ‘A’ and
checksum characters. See Checksum Calculation in this chapter for an
explanation of how checksum is calculated. Note that the ‘?’ character in
place of the checksum characters is a wildcard and therefore ignores the
checksum.
r Carriage return (0x0D)
A Acknowledge character (0x41)
N Not acknowledge character (0x4E)
± Normally indicates polarity. If an error is present, an ‘X’ displays with an
error code (ASCII character) immediately following. Possible error codes and
definitions are listed below:
1 — Unit disabled
6 — ADC overrange error
7 — Net or gross engineering unit overflow
Table C-2. Definitions of Characters in Command Strings