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55
Creating a Virtual Network
Section 3-4
Precautions When Downloading to Existing Networks
The following precautions must be heeded because parameters cannot be
downloaded to devices if the new automatically generated TUNID to be trans-
mitted is different from the TUNID in the device memory.
Always use one of the four methods listed below when downloading parame-
ters to a device that has already had parameters downloaded to it.
If the download is executed using a different method, the download will fail
because the transmitted TUNID and the TUNID in the device memory are dif-
ferent. A “Different TUNID” error message will appear in the error history.
Method 1:
Download the parameters using the previously created net-
work configuration file.
Method
2:
Download the parameters based on the configuration
obtained from a network upload.
Method 3:
If using a newly created network configuration file, get the
network number from the actual network (a function of Net-
work Configurator version 1.50 or higher; see note). Make the
virtual network number in Network Configurator the same as
the actual network number and then download the parame-
ters.
Note
Use the following procedure to get the network number.
(a) Select
Network – Property
or right-click the Network Configura-
tion Window and select
Property
. Click the
Get from the actual
network
Button in the Network Number Area in the Network
Property Dialog Box.
(b) The network number of the real number that you want to down-
load will be read to the personal computer.
(c) Click the
OK
Button and update the network number, and then re-
execute the download.
Method 4:
If using a device that has been used in another location, reset
the device to out-of-the-box configuration (see note) and
download using methods 1, 2, or 3.
Note
Select
Device – Reset
or click the right mouse button and select
Reset
to display the Reset Device Dialog Box. Set the reset type to
Return to the out-of-box configuration, and then emulate cy-
cling power
and click the
OK
Button.
Generally, method 1 should be used, i.e., save the master network configura-
tion file and use it to make any network configuration or parameter changes.
Then download parameters using that master file.
When connecting a new device to the network, use method 4 and reset the
device to initial status before downloading.
Note
When the parameters are downloaded to the devices, the network number is
transferred with the parameters as the UNID and saved in the devices. There-
fore, when using a device whose parameters have already been downloaded
to another domain, set the reset type to
Return to the out-of-box configuration,
and then emulate cycling power
and perform a reset to clear the UNID.
Summary of Contents for DeviceNet Safety
Page 1: ...SYSTEM CONFIGURATION MANUAL Cat No Z905 E1 07 DeviceNet Safety...
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Page 5: ...DeviceNet Safety System Configuration Manual Revised July 2009...
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Page 11: ...ix TABLE OF CONTENTS Appendix 277 Glossary 333 Index 335 Revision History 339...
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