ABB YPQ111A Extension I/O Board 61161007
The extended I/O board YPQ111A as YPQ110A is mounted next to the application controller
YPP110A or next to another I/O board. In the case of local I/O it is connected to the I/O bus with a
64-pole ribbon cable at X1, and it is powered from the I/O bus. The same APC application program
can be used as with YPQ110A board.
A time-out time can be set by software. When the I/O board has not been updated with new data within the time-out time the outputs are reset. This is not implemented in the local I/O function elements but can be used with remote I/O. The watchdog function is used in the board. The micro controller in the YPQ111A has to refresh the watchdog once every 100 ms. The watchdog time out period is 1.6 seconds immediately after reset. If the watchdog goes off, all the binary and analog outputs are inactivated and the red LED
indicator will turn on and the micro controller is reset. YPQ111A always needs a connection board YPT111A for connecting the field instruments.
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