Festo EXCM-10-***-E, Translation Of The Original Instructions

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6 Operation
Festo – EXCM-10/-30-...-E-EN – 1612b – English 53
Response “Read CVE object”
Byte Function Data type Description
0x00 Service ID UINT08 0x10 = Read CVE object from controller
0x01
0x02
0x03
0x04
Message ID UINT32 Message ID included in the request.
0x05
0x06
0x07
0x08
Data length UINT32 The data length is dependent on the data type of the
read CVE object. The following applies:
Data length = 4 bytes + data type length
Example for UINT32:
Data length = 4 bytes + 4 bytes = 8 bytes
0x09 Acknowledge UINT08 0 if everything is ok. All other values mean that the
object could not be read. A listing of possible causes of
error
è
Tab. 6.17.
0x0A
0x0B
0x0C
0x0D
Reserved UINT32 Placeholder
0x0E
0x0F
Object index UINT16 Index of the read CVE object.
0x10 Object subindex UINT08 Subindex of the read CVE object.
0x11 Data type UINT08 Data type of the read CVE object.
0x12 Data byte 1 corresponding
to data type of
the CVE object
Value of the read CVE object.
… Data byte K
Tab. 6.14 Response “Read CVE object”