PFEA112-20 3BSE030369R0020 | ABB| Intelligent Gateway module

Description

PFEA112-20 3BSE030369R0020 | ABB| Intelligent Gateway module

1. .Many products are not yet on the shelves please contact us for more products
2. .If there is any inconsistency between the product model and the picture on display, the model shall prevail. Contact us for the specific product picture, and we will arrange to take photos in the warehouse for confirmation
3. .We have 16 shared warehouses around the world, so please understand that it can sometimes take several hours to accurately return to you. Of course, we will respond to your concerns as soon as possible

The output of all PFEA112-20  remote controls is generated by pulse amplitude modulation of 38kHz to 40kHz square waves using encoded serial data. If the modulated wave is directly measured, and its pulse width is only over 20 microseconds, due to the instruction cycle of the microcontroller being in the microsecond level, it will produce significant errors. Therefore, first demodulate the modulated wave and measure the demodulated waveform. Connect the remote control encoded pulse decoded by CX20106 or integrated infrared receiver directly to the INT0 and T0 pins of PFEA112-20  microcontroller, and initialize the timers T0 and T1 to the GATE position of T0 in timed working mode 1. Each external interrupt first stops timing, records the count values of T0 and T1, then clears the count values of T0 and T1, and restarts timing. The value of T0 is the high-level pulse width, and the values from T1 to T0 are the low-level pulse width. The PFEA112-20  between T0, T1 and the pulse width of the infrared encoded signal is stored in the external storage 24C256 and waiting for transmission and call.

Mailbox：sauldcsplc@gmail.com |PFEA112-20 3BSE030369R0020
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