New Post: M2 command failed

Hi All,
I am facing problem with DUKPT Decryption. I am sending the command as per THales HSM manual, but I am getting error response as: 0000M315

Please find command below, Request you to help me whats wrong with my command.

I am not sure about KSN descriptor. I am passing it as 609
MY KSN: FFFFFF85000006000162

Could you please confirm me what could be the value for KSN descriptor for my KSN

COMMAND: 0000M20011009U1BEE5C2C1820D691299B843984177A9A609FFFFFF8500000600016200E0beb0297d81e42bf9e07b1948dfaba7f8f032622173f61d2bacf6f485fa0a9babaf58637184b5e459cbae55f2b53ff9c356e4817f2efa9d70e740b27e2e089ccf42fefa56ee38c58d49f89206f9709c31e7ec616767f7638e3f853dde45af94e7cdb06502017a16c44ab472c3ce03260e

Command Details:
User Header: 0000
Command Code: M2
Mode Flag: 00
input/output format flag: 11
BDK Type: 009
BDK Encryption key: U1BEE5C2C1820D691299B843984177A9A
KSN Descriptor: 609
KSN: FFFFFF85000006000162
Data Length: 00E0
Data: beb0297d81e42bf9e07b1948dfaba7f8f032622173f61d2bacf6f485fa0a9babaf58637184b5e459cbae55f2b53ff9c356e4817f2efa9d70e740b27e2e089ccf42fefa56ee38c58d49f89206f9709c31e7ec616767f7638e3f853dde45af94e7cdb06502017a16c44ab472c3ce03260e

Thanks,
Nazir