Xylem Expert 7060_7070_Modbus User Manual
Page 31
Communication protocol Serie30
Page 37/37
6.6
Changes
•
Function 95, request b: For devices of Class.Group -Year.Week = 5.1-02.27 the setpoint must be multiplied by -1.
•
Document version 2.1, 19. October 2005: New function 32 and 33 for device Class.Group -Year.Week = 05.24 and
earlier
F75: cancelled.
•
Document version 2.2, 16. August 2006:
Description for function 32/33 revised.
Documentation of function 101 added.
Formula for scaling of the analogue output corrected.
•
Document version 3.0, 20. December 2010:
Added Modbus (chapter 4) support for Class.Group=5.20-10.XX
Modbus Implementation of Functions (3,6,8 and 16) with support of all functions covered by the Keller Bus protocol.
Removed SF6 calculations and Switch for devices Class.Group=5.20-10.XX
Added chapter error handling and recognition
Modified chapter “floating-point format IEEE754”
6.7
Software versions
An overview of the realeased versions for Class.Group 5.20:
Version
Year.Week
Date of
production
Major changements
2.40
2002..2003
Base version
3.50
2003 .. 2006
-
CH0: add option Linepressure compensation
5.50
2006 .. 2100
-
Hardware redesign to increase robustness under EMC
-
add Lowpass Filter and adaptive Filter for pressure channels
-
Switch2 canceled
-
only two temperature channels possible: TOB1 and TOB2 or T
-
sqrt calculation without scaling factor
-
add Fct 32 and F33 for configuration access
10.40
2011…
-
Improoved errorhandling: see error handling and recognition
-
Switch output: canceled
-
CH0: SF6 calculation: canceled
-
CH0: Kuve fitting added (CH0= 14)
MODBUS protocol:
-
F3: access to all registers as in the KELLER protocol.
-
Serial buffer increased from 10 to 13Bytes Æ readout of 2 values possible in one
task
-
F6, F8, F16 added: Configuration an calibration also with MODBUS
-
Debug: CRC of exception code was wrong
6.8
Support
We are pleased to offer you support in implementing the protocol.
There are two softwares aviable for readout values and for configuration: CCS30 and READ30.
Also divers for LabView, C#, etc are aviable on our website:
http://www.keller-druck.com
KELLER AG für Druckmesstechnik
St. Gallerstrasse 119 • CH-8404 Winterthur
Tel: ++41 52 235 25 25
http://www.keller-druck.com
MJK