EDS94AYCEN EN 9.0 - 09/2012 L 47
E94AYCEN communication manual (Ethernet)
Parameter data transfer
Telegram examples
7.7.2 Example 2: Querying the firmware product type (read request)
The firmware product type of the controller is to be read.
Code to be read: C00200
Assumption: product type = "E94AFH"
Request
SDO command (GSV) = 0x82 = "Read parameter"
GCI message qualifier (GMQ) = 0x00 = 00000000B = "Request"
Transaction ID (GTI) here "1" (optional consecutive number 0 ... 255)
Length of the user data (SIZE) = 0x0014 = 20 bytes
GCI header
GMT GSV GMQ GTI SIZE SIZE res res
0x01 0x82 0x00 0x01 0x14 0x00 0x00 0x00
Fixed Reading
parameters
Request Transactions ID Length of the user data = 20 bytes Reserved
User data area P0
Byte 1 Byte 2 Byte 3 Byte 4
Reserved Reserved Data type Reserved
0x00 0x00 0x00 0x00
Optional for
read request
User data area P1 User data area P2
Byte 1 Byte 2 Byte 3 Byte 4 Byte 1 Byte 2 Byte 3 Byte 4
Code Reserved Reserved Subcode Reserved Reserved
0xC8 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Code = 200 = 0x00C8 Subcode = 0
User data area P3 User data area P4
Byte 1 Byte 2 Byte 3 Byte 4 Byte 1 Byte 2 Byte 3 Byte 4
Reserved Reserved
0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
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