STX Signal Transmitter Installation and Operation ... - Kistler-Morse

Appendix B. Serial Commands
Appendix B. Serial Commands
Introduction
This appendix contains the serial commands and protocol syntax used for serial communications
between the host or Master (ROPE, PC, etc.) and the STX. Detailed explanations and examples of
the commands are included.
Note
You must calibrate the STX digitally if the STX is serially connected to another device, even if
you have already done an analog calibration.
Command Table
Command Function Transmitted by Received by
Master to Master from
STX 1 STX 1
Hex ASCII
23 # K-M product identification number >aa#ssr Addssr
(A3568r for STX)
57 W Request engineering units (gross wt) >aaWssr A±dddddddssr
42 B Request engineering units (net wt) >aaBssr A±dddddddssr
54 T Tare addressed vessel >aaTssr Ar
6D,37 m7 Select self-calibration mode >aam7000000dssr Ar
Note: d indicates mode
0=disable periodic self-calibration,
1=enable periodic self-calibration
75,31 u1 Request raw counts >aau1ssr Adddddddssr
6D,31 m1 Select analog or digital mode >aam1000000dssr Ar
Note: d indicates mode
0=analog, 1=digital
4C L Auto lo span calibration >aaLdddddddssr Adssr 2
48 H Auto hi span calibration >aaHdddddddssr Adssr 2
5A Z Auto zero calibration >aaZdddddddssr Adssr 3
Notes:
1
See Table B-2 for definitions of the characters in the command strings.
2
d is the return status code:
0 = Calibration successful
1 = “Ambiguous” warning. Hi Span counts are greater than Lo Span counts.
2 = “Move more material” warning. Change in weight caused a change of less than 20,000 counts.
Note that the Hi Span or Lo Span value is still entered when the warning (d=1 or 2) is given.
3
d is the return status code:
0 = Calibration successful
Table B-1. STX Serial Commands
B-1