KROHNE UFC 500 HART - Manual (Page 51)

HARTô Smart Communications Protocol
UFC500 Command Specification Rev: 2.0 Release Date: 9 Jun 2001
© 2001 KROHNE Mefltechnik D-47058 Duisburg Page 51
10. RELEASE NOTES
The new revision of the given document is caused by the upgrade of the instrument transmitter SW. Each change from
the previous revision is marked within the text with a vertical bar to the right of the indent with innovations. The next
indent can serve as example.
Text with any change as compared with the previous revision: addition, removal, replacement, etc.
10.1 Changes from Rev.1 to Rev.2
Section 3; UFC500 Conformance and Command Class Summary
•
Added commands dealing with Universal parameters: Message and Final Assembly Number.
Section 5; General Transmitter Information
•
First paragraph is modified ñ for the new XMTR revision Primary Variable always traces some measurement
process even if the function of the current output is switched ìOffî (automatically, as on entering multidrop mode or
manually, via device keypad).
Section 6; Additional Universal Command Specifications
•
Added comments on Command #0, Read Unique Identifier ñ the new XMTR revision supports the unique device
ID linked with the newly invented instrument ìSerial Numberî (Ser. 5.1.4)
•
Comments on Commands #16 .. #19 removed ñ all the data is processed as required by HARTÆ by the new XMTR
revision..
Section 7; Additional Common-Practice Command Specifications
•
Comments on Command #44, Write Primary Variable Units, changed ñ due to extended set of supported units.
•
Comments on Command #53, Write Transmitter Variable Units, changed ñ due to extended set of supported units.
•
Comments on Command #59, Write Number of Response Preambles, removed ñ command is processed as required
by HARTÆ.
Section 8; Transmitter-Specific Commands
•
Command #132, Read Frequency/Pulse Output Damping Control, changed ñ transaction is augmented with the two
new parameters: device firmware identification number and device release date.
•
Comments on Command #139, Write Analog Output Function, changed ñ due to new scheme of PV handling in
case current output is switched ìOffî.
•
Commands #156/#157, Read/Write Device-Specific Units and Enumerators, changed ñ due to the new unitsí
handling scheme (they are all separated from the ones that used by device display ëcause augmented unitsí set is
supported by XMTR); besides, three additional device parameters are involved in transactions.
Section 9; Transmitter-Specific Tables
•
The transmitter variable unitsë tables (9.1, 9.2) are augmented with the new supported units.
•
New unit tables are invented (9.3, 9.4) for Pulse Value.