Version: 2020-09-04
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Copyright of the European Union is effective (Copyright EU) (c) 2019 GENEREX Systems GmbH, Hamburg, Germany, All rights reserved
TEL +49(40)22692910 - EMAIL generex@generex.de - WEB www.generex.de (This and all other product datasheets are available for download.)
Some historical facts:
The Modbus protocol was launched in 1979 by Gould-Modicon for communicating with its programmable logic controllers and has
become an unofficial standard for industrial usage due to its open protocol standard.
Since 1999, fieldbuses have been standardized worldwide in the IEC 61158 standard (Digital data communication for measurement and
control - Fieldbus for use in industrial control systems). The second generation of fieldbus technology is based on real-time Ethernet.
UNMS Server
The UNMS server was specially developed to communicate with the universal network management software from GENEREX. The
powerful successor UNMS 2 communicates via UPSTCP on port 5769. The UPS server service enables or disables availability through
this port.
Date and time
For this configuration step, navigate to the following menu:
Surprisingly some system critical duties like logging or running recurring tasks require a reliable Realtime-clock.
For this reason, the CS141 provides an own system clock but also offers the ability to query external NTP servers. For maximizing
failure security, the CS141 can even set und read the internal clock of the UPS if supported.
Automatic time adjustment
If the network settings are set correctly and CS141 gets an internet connection, you can use the default server settings. In case of a
local time server inside a closed-up network segment, the CS141 provides to use an IP address instead of name services. If internal
time services used, we recommend the option to enter an IP address although a DNS-Service is available:
If DNS lookup fails, the NTP synchronization will not run.
Note:
A time server normally provides preformatted time containing information about used time zones. The CS141 calculates the real system
time itself from the time zone setting.
If you operate your own time server, this time zone must be adjusted accordingly.
Pressing Apply will save the settings and restarts the time server service inside the CS141 without rebooting.
As soon as the time service accepted the new settings, the first-time synchronization follows.
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