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how to calculate CRC for Allen Bradley frame

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Hi Team , 

I am new to MicroLogix 1400 , I wanted to decode following frame which i have already done , but am not able to crack how CRC is calculated in this frame , like the data sheet which i am referring for this shows about BCC calculation , which is only of 1 byte after end of frame , but i am getting 2 byte CRC value and that's not matching to any of the CRC standard format , please find the frame for the same . 

Tx:
10 06 10 02 01 00 0F 00 FB 6F A3 FF A8 4F FF AC 51 FF AE 51 FF 9C 4F FF 94 51 FF 96 51 10 03 4B  

Rx:
10 06 10 02 00 01 4F 00 FB 6F 00 00 00 00 00 00 00 FF FF 00 00 00 00 00 00 00 FF FF 10 03 BE 07


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