Flintec LDU 78.1 User Manual
Page 2
LDU 78.1 Technical Manual, Rev. 12 May 2011
Page 2 of 36
Table of Contents:
1.
Safety Instructions .................................................................................................................................... 4
2.
Declaration of Conformity ........................................................................................................................ 5
3.
Introduction and Specifications ............................................................................................................... 6
4.
Communications and Getting started ..................................................................................................... 7
4.1.
Serial Interface ......................................................................................................................................... 7
4.2.
Command Language ................................................................................................................................ 7
4.3.
Baud Rate / Device Address .................................................................................................................... 8
4.4.
Getting Started ......................................................................................................................................... 8
5.
Hardware and Wiring ................................................................................................................................. 9
5.1.
Wiring ....................................................................................................................................................... 9
5.2.
With Unit Adapter UA 77.1 (RS232) ........................................................................................................ 9
5.3.
With Unit Adapter UA 73.2 (RS422 / RS485 Full-/Half-Duplex) .............................................................. 9
5.4.
Terminal Configuration ........................................................................................................................... 10
5.5.
Load Cell Connection ............................................................................................................................. 10
6.
Calibration and Calibration Sequence ................................................................................................... 11
7.
Commands – Overview ........................................................................................................................... 12
8.
Commands Description .......................................................................................................................... 14
8.1.
System Diagnosis Commands – ID, IV, IS, SR, RS .............................................................................. 14
8.1.1.
ID Get Device Identity ................................................................................................................................... 14
8.1.2.
IV Get Firmware Version ............................................................................................................................... 14
8.1.3.
IS Get Device Status ..................................................................................................................................... 14
8.1.4.
SR Reset LDU XX.X Firmware ....................................................................................................................... 14
8.1.5.
RS Read Serial Number ................................................................................................................................. 14
8.2.
Calibration Commands – CE, CM n, CI, MR, DS, DP, CZ, CG, ZT, FD, IZ, ZR, ZI, WT, TM, CS ......... 15
8.2.1.
CE Read TAC* Counter / Open Calibration Sequence .................................................................................. 15
8.2.2.
CM n Set Maximum Output Value .................................................................................................................. 15
8.2.3.
CI Set Minimum Output Value ....................................................................................................................... 15
8.2.4.
MR Set Multi-range / Multi-interval ................................................................................................................. 15
8.2.5.
DS Set Display Step Size ............................................................................................................................... 16
8.2.6.
DP Set Decimal Point Position ....................................................................................................................... 16
8.2.7.
CZ Set Calibration Zero Point ........................................................................................................................ 16
8.2.8.
CG Set Calibration Gain (Span) ..................................................................................................................... 16
8.2.9.
ZT Enable / Disable Zero Tracking ................................................................................................................. 16
8.2.10.
FD Reset to Factory Default Settings ............................................................................................................. 17
8.2.11.
IZ Correction of System Zero ........................................................................................................................ 17
8.2.12.
ZR Zero Range .............................................................................................................................................. 17
8.2.13.
ZI Initial Zero Range ...................................................................................................................................... 17
8.2.14.
WT Warm-up time .......................................................................................................................................... 17
8.2.15.
TM Tare mode ................................................................................................................................................ 17
8.2.16.
CS Save the Calibration Data ........................................................................................................................ 18
8.3.
Motion Detection Commands – NR, NT ................................................................................................. 18
8.3.1.
NR Set No-motion Range ............................................................................................................................... 18
8.3.2.
NT Set No-motion Time Period ...................................................................................................................... 18
8.4.
Filter Setting Commands – FM, FL, UR ................................................................................................. 19
8.4.1.
FM Filter Mode ............................................................................................................................................... 19
8.4.2.
FL Filter Settings ............................................................................................................................................ 19
8.4.3.
UR Update Rate and Averaging ..................................................................................................................... 20