BR-Automation Automation PC 820, Руководство пользователя, Страница: 217 / 252

Appendix A • Maintenance Controller Extended (MTCX)
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217 Automation PC 820 User's Manual V 1.00
Appendix A
1. Maintenance Controller Extended (MTCX)
The MTCX controller (FPGA processor) is located on the main board (part of every system unit)
of the APC820 device.
The MTCX is responsible for the following monitoring and control functions:
• Power on (power OK sequencing) and power fail logic
• Watchdog handling (NMI and reset handling)
• Temperature monitoring
• Fan control
• Key and LED handling/coordination (matrix keyboard on B&R display units)
• Advanced desktop operation (keys, USB forwarding)
• Daisy chain display operation (touch screen, USB forwarding)
• Panel locking mechanism (configurable using B&R Control Center - ADI driver)
• Backlight control for a connected B&R display
• Statistical data recording (power cycles - each power on, power on and fan hours are
recorded - every full hour is counted e.g. 50 minutes no increase)
• SDL data transfer (display, matrix keyboard, touch screen, service data, USB)
Figure 89: MTCX controller location
MTCX