3 608 870 A47
Tightening Technology |
Bosch Rexroth AG 165
Nexo cordless Wi-Fi nutrunner
| 3 608 870 A47/2019-10
7.7
VW-XML protocol
The settings for the protocol are made via the NEXO-OS operating system in the
Settings
Data
VW-XML
menu, see section
Communication between the Nexo cordless Wi-Fi nutrunner and the superordinate computer (master
PC) can be realized via VW-XML protocol. During communication, the superordinate computer acts as
master and the Nexo cordless Wi-Fi nutrunner acts as slave.
The VW-XML protocol is a communication protocol based on standard Ethernet TCP/IP.
The VW-XML protocol uses the OK/NOK counters of the Nexo cordless Wi-Fi nutrunner. For setting the
OK/NOK counter via menu
Settings
OK/NOK counter
, the following has to be observed:
1. Under
Select PLC signals
, activate
Prg0... Prg7
.
2. Make the following settings under
Counter records
:
a. Under
OK counting direction
and
NOK counting direction
, the counting direction is increasing
(1,2,..,n).
The potential value for NOK tightening defined by the VW-XML master PC (tag <MNO>) is
increased by 1 as one more tightening process is to be allowed after the last NOK tightening as
defined in the VW corporate requirement specifications.
b. Enable the
Disable when reaching the number of OK/NOK
check box for
nutrunner
and
Prg99
. If the OK or NOK counter is reached, the nutrunner and Prg99 are disabled.
After the first tightening process, the Nexo cordless Wi-Fi nutrunner is neither disabled in case of
OK nor NOK result.
7.7.1
Assignment of PLC signals
To ensure proper function of the VW-XML protocol, the
vwXml
PLC module has to be activated in menu
Settings
PLC signals
.
•
Except for the
Cw
and
Ccw
signals, all control signals have to be applied under
Inputs
to the
vwXml
module according to the designation highlighted in gray. The
Cw
and
Ccw
signals are applied on the
tool
PLC module.
•
All control signals have to be applied under
Outputs
to the
vwXml
module according to the
designation highlighted in gray.
As of Nexo firmware version 1200, the VW-XML protocol is supported. VW-XML version 2.1 is supported.
As of Nexo firmware version 1400, the VW-XML version 2.0 is supported.
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 Nexo cordless Wi-Fi
nutrunner. This documentation only documents the settings for the Nexo cordless Wi-Fi nutrunner
regarding the VW-XML data protocol
; the basic and general information is described in
the requirement specifications mentioned above.
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