MA1044 MAQ20-RTD31/-RTD41 Hardware User Manual
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Reset Registers
Writing a valid data value to the Reset Register will force the module to perform a specified reset.
Write 0 to perform Standard Reset and write 255 to perform Reset-to-Default.
NOTE: The MAQ20 I/O modules send a response to the reset register write before carrying out the
reset. This means the module will be unresponsive to commands for approximately 3
seconds.
Power-On-Reset (POR) and Brownout
MAQ20 I/O modules utilize a brown-out detect circuit and watchdog timer to ensure reliable and
predictable operation under all conditions. Upon power cycle, brown-out detect or any extreme
circumstance under which the watchdog timer expires, a Standard Reset is performed, and
parameters stored in module memory are loaded to the appropriate registers.