28
use a CS121MODBUS (special hardware) in other cases you have to use MODBUS-over IP.
This is enabled by default, you may disable this feature via Telnet or HTML-configuration.
Modbus Slave Address: Enter the corresponding number, meaning which number in the
chain (bus) the adapter is.
Modbus Mode: RTU (Binary mode) or ASCII mode text output. Please select the type with
the scroll down menu.
Note:
ASCII Mode works at CS131 & CS121 platforms with communcation parameters 7/E/2, or
7/E/1 or with 7/N/2 from baudrate 1200 to 38400. We recommend for ASCII the use of 7/N/2
and the highest baudrate supported by your device.
RTU Mode works at CS131 & CS121 platforms with communcation parameters 8/E/1 or
8/N/2 or 8/N/1 or 8/E/2 or 8/O/2 or with 8/O/1 from baudrate 1200 to 38400. We recommend
for RTU the use of 8/E/1 and the highest baudrate supported by your device.
Enable Hardware Watchdog: (from firmware 3.87) This is a function that should avoid
hang-ups of the CS121 HW131 (via network problems or other, external devices). This
function is only available at the newer hardware 131, not at the 16bit model CS121 HW121.
The hardware watchdog will be triggered every 20 seconds from one of the CS121 services. If
they get no response, the CS121 will restart by itself. Thereby the broadcasts like denial of
service attacks will be switched off reliable. The hardware watchdog should be used only, if
you cannot determine the cause of a hang-up. If reboots occur often, please contact the
support for an analysis. To switch off the hardware watchdog, uncheck the box “Enable
Hardware Watchdog” and click the “Apply” button. Click the Save Configuration menu and use
the function “Save, Exit and Reboot” and restart the adapter completely. Now achieve a cold
start!
Change Administrator Password: The password protects against unauthorized usage and
manipulation. The default password is "cs121-snmp". In case you have "forgotten" your
password a master password can be generated using your adapter serial number. Please
contact your manufacturer for more information.
Change UPSMON & SS4 Password: This is a separate password (default: “cs121-snmp)
and allows to open UPS FUNCTIONS and SS4 FUNCTIONS only to specific users. With this
password, which is valid for the TCP/IP connection to the UPSMON too, the user may switch
on/off the UPS, start battery tests, switch SITESWITCH 4 outputs, but can not change any
other setting on the CS121 configuration. Exception: If the administrator password (default
identic) was not changed. The UPSMON is a Windows client, which is able to connect via
network to the CS121. The UPSMON and SS4 password is used as protection. Advice: For the
activation of the new password (apply button), it is required to reboot the CS121 via the „Save,
Exit & Reboot“ function.
The UPSMON password blocks entry to the UPSMON tools battery test and emergency shut
down. Knowledge of this password enable users to gain access to these security relevant
functions.
3.2.3 The CS121 with DHCP utilization
The firmware version 4.xx and higher contains DHCP. With DHCP your CS121 will get an IP
address automatically from the DHCP server. Please note, that this address allocation should
be fixed, because RCCMD, which checks the addresses of the senders, will not be functional.
Click the “Network & Security” button in the CS121 configuration and check the “Use DHCP”
box.
To Next Page
Loading...
