Settings in the System Manager
The CX1100-0900 UPS module is inserted as a "Box" under the CX1100 module. You will find a detailed explanation of how to add hardware in the documentation for the TwinCAT System Manager.
The UPS is added automatically when TwinCAT scans automatically for boxes in its configuration mode.
"General" tab:
Displays general device information on the selected device. The inputs and outputs of the UPS module can be displayed on the left browser window. This can be used to manipulate the UPS from the PLC.
A detailed description of the setting options will be found in the documentation for the TwinCAT System Manager.
There are fundamentally two different methods of controlling the UPS module. The first way is to make the operating settings directly in the TwinCAT System Manager. In this case it is not necessary for any other control to be exercised from the PLC program. The status signals from the UPS can, however, be evaluated in the program. As an alternative, the control can be exercised from the PLC program. This is described exhaustively in the section entitled "Controlling the UPS from the PLC". Operation through the TwinCAT System Manager, however, is described below.
Operating the UPS with the TwinCAT System Manager
Two configurations for operating the UPS are available in the System Manager:
Configuration 1:
"Enable Automatic Shutdown" is active, but "No Abort" however is not:
"CX1190 UPS" tab:
Enable Automatic Shut Down:
If this switch is selected, then TwinCAT is stopped after an adjustable retention time, and "Windows XPe" is shut down. Device 1 (here the CX1100) is switched off after the retention time has elapsed. Even when the power fails for very short periods (<<10s) the system shuts down and the CX is switched off.
Problem: If the voltage returns after TwinCAT has stopped but while "Windows XPe" is still in the process of shutting down, the CX remains on, but "Windows XPe" remains stopped.
The UPS is fully charged again. The voltage must remain switched off for long enough for the UPS to switch off, and only after this will reboot take place.
Configuration 2:
"Enable Automatic Shutdown" and "No Abort" are active:
"CX1190 UPS" tab:
Enable Automatic Shut Down:
If this switch is selected, then TwinCAT is stopped after an adjustable retention time, and "Windows XPe" is shut down. Device 1 (here the CX1100) is switched off after the retention time has elapsed. Even when the power fails for very short periods (<<10s) the system shuts down and the CX10x0 is switched off.
No Abort:
If the power voltage returns after TwinCAT has stopped, but while "Windows XPe2" is still shutting down, the CX10x0 will still reboot.
The problem of staying stuck in OFF, as above (option 1) does not occur. As soon as the UPS is fully charged again, the CX switches on once more.
Problem: The CX10x0 boots in every case, even when power failures are extremely short
Using the System Manager to set the retention time
The retention time of the UPS is set through the rotary switch on the front panel of the UPS. Details on this can be consulted in the technical description of the switch. It is possible to ignore this setting, and to set the retention time of the UPS through the System Manager. This is done by selecting the "Override DIP Switch" dialog box. The "DIP Switch" check box is activated here. A value from 0 to 9 can be chosen. This value corresponds to the setting of the rotary switch. The position of the rotary switch no longer has any effect.
Activating the settings
Once all the desired settings have been made, the configuration must be activated through the System Manager. You will find further explanations in the documentation for the TwinCAT System Manager.