USS specyfikacja en, Automatyka, Falowniki

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Universal Serial
Interface Protocol
USS
Ò
Protocol
Specification
Ausgabe / Edition 09.94
Bestell-Nr. / Order-No. E20125-D0001-S302-A1-7600
Authors:
Walter Möller-Nehring, Siemens AG, ASI 1 D SP, Erlangen
Wolfgang Bohrer,
Siemens AG, ASI 1 D SP, Erlangen
Copying of this document, and giving it to others and the use or
communication of the contents thereof are forbidden without
express authority. Offenders are liable to payment or damages.
All rights reserved, in particular with regard to the granting of a
patent or the registration of a utility model or design.
We have checked the contents of this document to ensure that
they coincide with the described hardware and software.
However, differences cannot be completely excluded, so that we
do not accept and guarantee for complete conformance.
However, the information in this document is regularly checked
and necessary corrections will be included in subsequent
editions. We are grateful for any recommendations for
improvement.
USS
â
is a registered trademark of Siemens.
SIMOREG
â
is a registered trademark of Siemens.
SIMOVERT
â
is a registered trademark of
Siemens.
ã
Siemens AG 1994 All Rights Reserved
Contents, release, literature
Contents
Section A: Protocol specification
1. Introduction........................................................................................................................................... 1
2. Telegram transfer ................................................................................................................................. 2
2.1. Cyclic telegram transfer ........................................................................................................................ 2
2.2. Acyclic telegram transfer....................................................................................................................... 2
3. Broadcast ............................................................................................................................................. 2
4. Telegram structure................................................................................................................................3
4.1. Data coding .......................................................................................................................................... 3
4.2. Telegram length (LGE) ......................................................................................................................... 3
4.2.1. Variable telegram length ....................................................................................................................... 3
4.2.2. Fixed telegram length ........................................................................................................................... 3
4.3. Assigning the address byte (ADR) ........................................................................................................ 4
4.4. BCC generation .................................................................................................................................... 5
5. Data transfer procedure ........................................................................................................................ 6
5.1. Data transfer handling........................................................................................................................... 6
5.1.1. Cycle time............................................................................................................................................. 7
5.1.2. Start interval ......................................................................................................................................... 8
5.2. Monitoring mechanisms and error responses ........................................................................................ 8
5.2.1. Time monitoring .................................................................................................................................... 9
5.2.1.1. Response delay time ............................................................................................................................ 9
5.2.1.2. Telegram residual run time.................................................................................................................... 9
5.2.2. Processing received telegrams ............................................................................................................. 9
5.2.3. Diagnostic resources for checking the receive function........................................................................ 10
5.3.
Mirror telegram ................................................................................................................................... 11
6.
Definitions........................................................................................................................................... 12
6.1.
Character run time .............................................................................................................................. 12
6.2.
Compressed telegram residual run time .............................................................................................. 12
6.3.
Maximum telegram residual run time................................................................................................... 12
Section B: Physical interface and bus structure
1. Topology............................................................................................................................................... 1
2. Data transfer technology ....................................................................................................................... 2
2.1. Cable characteristics............................................................................................................................. 2
2.2. Cable length ......................................................................................................................................... 4
2.3. Interface characteristics ........................................................................................................................ 4
2.4. Data transfer rate.................................................................................................................................. 5
3. Data transfer techniques ....................................................................................................................... 6
3.1. Bit coding.............................................................................................................................................. 6
3.2. Character frames .................................................................................................................................. 6
4.
Configuration guidelines........................................................................................................................ 7
4.1.
Cable routing ........................................................................................................................................ 7
4.2.
Potential bonding .................................................................................................................................. 7
4.3.
Screening ............................................................................................................................................. 7
4.4.
Termination technology, connector assignments ................................................................................... 8
4.5.
Bus termination..................................................................................................................................... 9
4.6.
Recommended circuit ......................................................................................................................... 11
Specifications, USS protocol
I
E20125-D0001-S302-A1-7600
Contents, release, literature
Section C: Defining the net data for drive applications
1. Introduction........................................................................................................................................... 1
2. General structure of the net data block ................................................................................................. 2
3. Parameterization of the USS
Ò
protocol at a serial interface .................................................................. 4
3.1. Parameter setting for 6SE21, 6SE30 (Micro Master) SIMOVERT converters and SIMOREG K 6RA24 . 4
3.2. Parameter setting for SIMOVERT Master Drives .................................................................................. 7
4. PKW area........................................................................................................................................... 10
4.1. Structure of the PKW area (parameter ID value) ................................................................................. 10
4.1.1. PKW area for a fixed telegram length.................................................................................................. 10
4.1.2. PKW area with variable telegram length.............................................................................................. 11
4.2. Description of the individual PKW elements ........................................................................................ 11
4.2.1. Parameter ID (PKE)............................................................................................................................ 11
4.2.1.1. Task- and response ID........................................................................................................................ 11
4.2.1.2. Parameter change report .................................................................................................................... 16
4.2.1.3 Parameter number (PNU) ................................................................................................................... 18
4.2.2. Index (IND) ......................................................................................................................................... 18
4.2.3. Parameter value (PWE) ...................................................................................................................... 23
5. PZD area............................................................................................................................................ 25
5.1. Structure of the PZD area ................................................................................................................... 25
5.2. Description of the individual PZD elements ......................................................................................... 26
5.2.1. The control word and status word ....................................................................................................... 26
5.2.2. Setpoints / actual values ..................................................................................................................... 32
5.2.3. Broadcast mechanism ........................................................................................................................ 32
6.
Data transfer format for the net data ................................................................................................... 33
7.
Configuring the protocol on the bus system......................................................................................... 36
8.
Examples............................................................................................................................................ 38
8.1.
Fixed telegram length ......................................................................................................................... 38
8.2.
Variable telegram length ..................................................................................................................... 41
Appendix
Overview: Telegram structure for the USS
Ò
-protokoll ....................................................................................... 1
The Optional Broadcast Mechanism of the USS-Protocol .................................................................................. 2
II
Specifications, USS protocol
E20125-D0001-S302-A1-7600
Contents, release, literature
Editions
Edition
Order No.
Date
Status
1st Edition, Section A
E31930 - T9011 - X - A1
January '92
Published
1st Edition, English
Section A
E31930 - T9011 - X - A1-7600
January '92
Published
1st Edition
Applications
E31930-T9012-X-A1
April '92
Published
Errors, to the 1st Edition
Applications
E31930-T9012-X-A2
October '92
Published
Function expansion for
SIMOVERT Master
Drive and general
update.
Not published as
application
E31930-T9012-X-AXX
August '93
Preliminary
Summary of the
documents
E31930-T9011 and
E31930-T9012
(d) E20125-D001-S302-A1
(e) E20125-D001-S302-A1-7600
September '94
New Edition
Brief description of the changes:
August 1993:
·
Specification for SIMOVERT Master Drives.
·
The restriction regarding a fixed telegram length for task telegrams from the master to the slave has been
withdrawn. When a variable telegram length has been parameterized, this is possible in both data transfer
directions (Master
®
Slave
®
Master).
·
Expansion in the index word (IND) in the high byte for text transfer for SIMOVERT FC/VC/SC
·
The text character sequence has been changed for data transfer via the bus.
September 1994:
·
Section C has been updated: Point 3: Parameterization
·
New in Section C: Point 6: Useful data transfer format
·
Supplement, Section B: Physical interface and bus structure
·
The master can now be located at any position on the bus.
·
Recommendation for display parameters for BUS- and interface diagnostics.
·
Assignment of the most significant bit in the address byte for special telegrams
·
Broadcast definition, Section C
·
Bits 11-15 in the index have been defined, converter-specific
·
Section B: Designations (A) and (B) have been replaced by RS485P and RS485N
Specifications, USS protocol
III
E20125-D0001-S302-A1-7600
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