6.3 Correction procedures
6.3.1 Creating relay backup in HMI
• Pair the HMI and the relay to activate the automatic backup. The relay backup is
read and stored by the LHMI when any change in relay configuration files (see
Table 12
for details) or settings has occurred and 24 hours has elapsed from the
last change. The SHMI reads a backup for all of the connected and paired relays.
Table 12: Configuration changes included in the relay backup
File or folder Description Part of backup and restore
.\language\ Folder containing HMI-specif-
ic language files
Yes
.\license\ 640 license files No
New license files are delivered
with the replacement relay.
.\pages\ 640 HMI page configuration Yes
.\SLD\ Single-line diagram related
files
Yes
.\UAM\ User access management re-
lated files
Yes
ACT_graph.cact Yes
conf.xml.gz Relay's application configura-
tion
Yes
conf.xml.gz.MD5 Checksum for application
configuration
Yes
configsum.xml Contains checksums of dif-
ferent items and change in-
formation. It is also used in
the relay to verify file check-
sums (for example, UAM
files).
Yes
done.txt When this file is updated
(date modified changes), re-
lay knows that its configura-
tion has changed. When the
relay backup is restored, this
file contains: Updated over
C:/backup.zip
Yes
hmi.xml HMI event configuration Yes
measurements.xml HMI-specific measurement
configuration (used by pha-
sor and measurement pages).
Yes
default_measurements.xml No
characteristics.xml No
udn.xml Use-defined naming Yes
1MRS759118 D Troubleshooting
REX640
Operation Manual
103