Basler Electric BE1-851 - Manual (Page 65)

Logic Override of the Setting Group Control Function
Control of the active setting group from the setting group control function can be overridden. This can be
accomplished from the HMI Screen 2.3.1, \CONTROL\SETTING GROUP CONTROL\SET GROUP
LOGIC OVERRIDE or from the ASCII command interface using the select before operate CS/CO-
GROUP (control select-setting group/control operate-setting group) command. This cannot be done using
BESTCOMS. A setting group change using logic override control is also blocked for two times the SGC
on setting after a setting group change and when the fault reporting pickup expression is TRUE. The
setting group change takes place immediately without having to execute an EXIT – SAVE setting
command.
A group override alarm bit is set in the programmable alarm function when the logic has been overridden.
This output can be used in the programmable alarms function if it is desired to monitor when the function
has been overridden. See Section 6, Reporting and Alarms, Alarms Function, for more information on
using alarm outputs.
The group control commands require the use of Select before Operate logic. First the command must be
selected using the CS-GROUP command. After the command is selected there is a 30 second window
during which the CO-GROUP control command can be entered. The control selected and operation
selected must exactly match or the command is blocked. If the command is not entered within the 30-
second window, the command is blocked. If the control command is blocked, an error message is output.
Example 1. Read the current status of setting group override that is overridden and held in SG0.
>CO-GROUP
0
Example 2. Override logic control and change the active setting group to SG3.
>CS-GROUP=3
GROUP=3 SELECTED
>CO-GROUP=3
GROUP=3 EXECUTED
Example 3. Return control of the active setting group to the setting group control function.
>CS-GROUP=L
GROUP=L SELECTED
>CO-GROUP=L
GROUP=L EXECUTED
Example 4. Group override error due to time out of select.
>CS-GROUP=3
GROUP=3 SELECTED
>CO-GROUP=3
ERROR:NO SELECT
?
Retrieving Setting Group Control Status from the Relay
The active setting group can be determined from the HMI Screen 1.5.5, \REPORT
STATUS\OPERATIONAL STATUS\ACTIVE GROUP. The setting group can be determined from the
ASCII command interface using the RG-STAT command. It cannot be determined using BESTCOMS.
See Section 6, Reporting and Alarms, General Status Reporting, for more information.
The status of logic override can be determined from the HMI Screen 2.3.1, \CONTROL\SETTING
GROUP CONTROL\SET GROUP LOGIC OVERRIDE. The status of logic override can be determined
from the ASCII command interface using the RG-STAT command. See Section 6, Reporting and Alarms,
General Status Reporting, for more information.
9289900990 Rev R BE1-851 Protection and Control 4-9