IFM Electronic AL1121, Operating Instructions Manual

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ifm Operating Instructions IO-Link Master with EtherNet/IP interface StandardLine 4 Ports IP 69K (AL1121) 2017-05-31
Appendix
>
Response channel
8468
Byte Content
4 Port no. (LSB)
5 Port no. (MSB)
6 Index (LSB)
7 Index (MSB)
8 Sub-index (LSB)
9 Sub-index (MSB)
10 Handshake Command
11 Result
12 Length of the response data (number of bytes)
13 Data (byte 0) or diagnostic data
14 Data (byte 1)
... ...
44 Data (byte 31)
45 reserved
Legend:
Port no. (LSB) Number of the IO-Link port (low byte)

Port no. = 0xXXYY

Port no. (LSB) = 0xYY
8 bits 0x01 = port X01
0x02 = port X02
...
0x04 = Port X04
Port no. (MSB) Number of the IO-Link port (high byte)

Port no. = 0xXXYY

Port no. (MSB) = 0xXX
8 bits 0x00
Index (LSB) Index of the IO-Link object (low byte)

Index = 0xXXYY

Index (LSB) = 0xYY
8 bits 0x00...0xFF
Index (MSB) Index of the IO-Link object (high byte)

Index = 0xXXYY

Index (MSB) = 0xXX
8 bits 0x00...0xFF
Sub-index (LSB) Sub-index of the IO-Link object (low byte)

Sub-index = 0xXXYY

Sub-index (LSB) = 0xYY
8 bits 0x00...0xFF
Sub-index
(MSB) Sub-index of the IO-Link object (high byte)

Sub-index = 0xXXYY

Sub-index (MSB) = 0xXX
8 bits 0x00...0xFF
Handshake Validity of the response data 1 bit 0x0 = invalid data
0x1 = data is invalid
Command Command number 7 bits 0x01 = read
0x02 = write
Result Status of the command processing 8 bits 0x00 = command processed without errors
0x01 = errors occurred
Length of the
response data Number of bytes that contain relevant user data 8 bits 0x00 = 0 bytes
...
0x20 = 32 bytes