Atlas Copco PowerMACS 4000, Руководство пользователя

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Peripheral Devices
9836 3521 01 501
The STS word is used as follows:
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Name R W F S X d2 d1 d0 s7 s6 s5 s4 s3 s2 s1 s0
Bit 15 to 8 just mirrors the corresponding bits in the CMD word.
The bits named s7 to s0 represents the status code that PowerMACS returns after executing the
command. They should be interpreted as a signed 8 bit value where a value greater or equal to zero
indicates a positive result, and negative values a failure. Currently the following status codes are defined:
Status code Description
0 Success
-1 Illegal process data specified
-2 Illegal size of the process data area
-3 Device is not properly connected
-4 Error in sequence number
-5 Received setup is too big
-15 Unknown error
-16 Size of Data bytes In to small for the requested service
-17 Size of Data bytes Out to small for the requested service
-18 The specified Process Data type cannot be flushed/skipped
-19 Ambiguous Command (more than one of the R, W, F & S bits are set)
-20 Invalid Extended format
-21 Invalid Address
-22 Fieldbus read error
-23 Fieldbus write error