Fairbanks X SERIES PR 5410 Process Indicator - Manual (Page 123)

Section 5: SMA Protocol
10/08 123 51207 Revision 1
5.4 SMA Reply Messages
In this section, the replies are described in detail. The data format of each reply has a fixed length.
The communication error is the only exception from this pre-definable format. Thus the controlling
computer can check each reply according to fixed rules, because each data field is in a fixed
position.
5.4.1 Standard Reply
With most commands, the reply format is as described below:
Exceptions are the commands: 'D', 'A'/'B' and 'I'/'N'.
Reply format and meaning:
Start of reply message
Scale status Definition / example
‘Z’ Zero within 1/4d = 0.000
‘O’ Above Max = +weight
‘U’ Below zero = - weight
‘E’ Zero setting error
‘T’ Taring error
None of the above conditions
Note: For ‘E’, ‘I’, ‘T’ error conditions
= ————— (minus sign)
and ‘Z’, ‘O’, ‘U’ are overwritten.
Range (‘1’, ‘2’, ‘3’, etc.) always ‘1’ for single range scales
Gross/net Status
‘G’ Gross weight
‘T’ Tare weight (as reply from ‘M’ command)
‘N’ Net weight
‘g’ High-resolution gross weight
‘n’ High-resolution net weight
Stability status
‘M’ The scale is not stable
The stability-of-scale condition is met
Reserved for future extensions
Weight value; the field has always 10 characters
Unit of the weight value
End of the reply message
Examples:
Command Reply
W <_> <1> <_> <_> <_ _ _ _ 5.025>
W <_> <1> <_> <_> <_ _ _ _ 100000>
H <_> <1> <_> <_> <_ _ _ _5.0025>