User's Manual

METTLER TOLEDO WILDCAT Scale Technical Manual
(12/00) 6-4
Appendix 2: Continuous
Mode Output
The continuous output format is output as the display is updated (approximately 7
times per second). The format is fixed except for baud rate, data bits, stop bits,
parity, and the selectable checksum character. The continuous output mode provides
compatibility with METTLER TOLEDO products that require real-time weight data (for
example, Models 8624, 9323, 9325, and other accessories).
Continuous data output at a 1200-baud rate will slow the display update rate. Use
4800 baud or faster to maintain the maximum update rate.
The continuous output includes status bytes that indicate the operating conditions in
the terminal.
Status Indicated Weight Tare Weight Character 1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1
Data S
T
X
S
W
A
S
W
B
S
W
C
M
S
D
- - - - L
S
D
M
S
D
- - - - L
S
D
C
R
C
H
K
Note 1 2 3 4 5 6
Continuous Format Notes
1 ASCII Start of Text <STX> character, hex value 02.
2 SWA, SWB, and SWC: Status Words A, B, and C. Refer to Tables 6-9, 6-10, and
6-11 for status bytes.
3 Displayed weight: Six digits of displayed weight. No decimal point in field.
4 Tare weight: Six digits of tare weight data. No decimal point in field.
5 ASCII Carriage Return <CR> character, hex value OD.
6 Optional checksum character: Checksum is defined as the 2’s complement of the
seven low order bits of the binary sum of all characters preceding the checksum
character, including the <STX> and <CR> characters.
Table 6-8: Continuous Format Output