9424200994 Rev U
Why do I keep getting access conflict errors when I attempt communication with the
BE1-11g?
If you try to gain access to more than one port at a time, an access conflict results. The BE1-11g has
three communication ports: front-panel USB, rear panel optional Ethernet, and rear panel RS-485. Each
communication method has its own access. For example, if you gain access through Modbus TCP, then
you cannot gain access using BESTCOMSPlus over Ethernet. Access needs to be gained only when a
write command to the BE1-11g is required (control or setting change or report reset).
When access is gained through a port, a user-defined access control timer starts counting down to zero.
When port activity occurs, the timer resets to the user-defined access control timer setting and resumes
counting down. If no activity is seen for the duration of the access control timer setting, access is
withdrawn and any unsaved changes are lost. When activity at a port is no longer required, access should
be terminated.
To close front panel access immediately, press the Reset button while any menu screen is displayed. The
BE1-11g should flash "Read Only" on the LCD screen to indicate access through the front panel has been
terminated.
Obtaining data or reports from the BE1-11g never requires password access. The security log is an
exception, as it requires Administrator access.
®
In Modbus
TCP/IP, the master cannot communicate with the BE1-11g, but can
communicate over Modbus TCP/IP with other devices on the same network
Step 1.
Verify that there is no IP address or Modbus slave address conflict.
Step 2.
For some devices on an Ethernet network, only the IP address is required to communicate over
Modbus TCP/IP. This is because each device must have a different IP address. With BE1-11g
Generator Protection Systems, in addition to the correct IP address, the master must also use
the correct slave address.
Why don't the BE1-11g security parameters get sent to the relay when I upload settings?
The security settings are not sent with the Upload Settings and Logic to Device or Upload Settings to
Device commands found under the Communications drop-down menu in BESTCOMSPlus. The Upload
Security to Device command must be used to send security parameters to the BE1-11g.
BE1-11g
Figure 352. Driver Software Update Successful
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Troubleshooting
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