3 608 878 300
Tightening Technology |
Bosch Rexroth AG 445
System 350
| 3 608 878 300/2019-03
6.9
VW-XML 2.x Protocol
This chapter describes the communication between the tightening controller and the superior computer
via the VW-XML Protocol. During communication, the superior computer acts as master (master PC) and
the tightening controller acts as slave. It enables management of max. one tightening channel or, via KE,
max. one application block simultaneously via a compact system (CS) or a communication unit (KE) in the
modular system.
The VW corporate requirement specifications "Controlled tightening systems" defines five tightening
processes two of which are supported by the Rexroth Tightening System 350: the tightening process
torque (AD process) and the tightening process angle of turn (AW process), see
Changes to the system configuration deviating from the VW corporate requirement specifications have
to be approved by the VW certification bodies.
The VW-XML protocol is a communication protocol based on TCP/IP.
When the VW-XML Protocol for control via Profinet (according to VW corporate requirement
specifications) is used, an IL control component with IMpnio interface module is required. A project-
specific IL program is required for this application.
As of version V2.600 of the
Rexroth Tightening System 350
, the time is displayed in format
HH:MMM:SS.mmm
(3-digit milliseconds with decimal point) in the results data record if the results data
is saved via VW-XML.
VW-XML
is supported as of version V2.300 of the
Rexroth Tightening System 350
.
Application of the VW-XML protocol outside of VOLKSWAGEN AG is subject to express written
agreement of VOLKSWAGEN AG.
The VW-XML protocol is the implementation of the VW corporate requirement specifications "Controlled
tightening systems", chapter 4 “Communication with superior units", for the Rexroth Tightening System
350. The present section only documents the specifics for the Rexroth Tightening System 350 as regards
the VW-XML data protocol; the basic and general information is described in the requirement
specifications mentioned above.
In order to use the VW-XML Protocol, a CF350 (memory card) must be inserted in the Compact System
(CS) or the communication unit (KE).
Summary of Contents for Rexroth Tightening System 350
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