78
ifm
Operating Instructions IO-Link Master with EtherNet/IP interface StandardLine 8 Ports IP 65 / IP 67 (AL1122)
2017-05-31
Appendix
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Request channel
17657
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
Trigger
Command
11
Length of the user data (number of bytes)
12
Data (byte 0)
13
Data (byte 1)
..
...
43
Data (byte 31)
44
reserved
45
reserved
Legend:
Port no. (LSB)
Number of the IO-Link port (low byte)
Port no. = 0xXX
YY
Port no. (LSB) = 0x
YY
8 bits 0x01 = port X01
0x02 = port X02
...
0x08 = port X08
Port no. (MSB)
Number of the IO-Link port (high byte)
Port no. = 0x
XX
YY
Port no. (MSB) = 0x
XX
8 bits 0x00
Index (LSB)
Index of the IO-Link object (low byte)
Index = 0xXX
YY
Index (LSB) = 0x
YY
8 bits 0x00...0xFF
Index (MSB)
Index of the IO-Link object (high byte)
Index = 0x
XX
YY
Index (MSB) = 0x
XX
8 bits 0x00...0xFF
Sub-index (LSB) Sub-index of the IO-Link object (low byte)
Sub-index = 0xXX
YY
Sub-index (LSB) = 0x
YY
8 bits 0x00...0xFF
Sub-index
(MSB)
Sub-index of the IO-Link object (high byte)
Sub-index = 0x
XX
YY
Sub-index (MSB) = 0x
XX
8 bits 0x00...0xFF
Trigger
Control of the command execution
1 bit
0x0 = do not process command
0x1 = execute command
Command
Command number
7 bits 0x01 = read
0x02 = write
Length of the
user data
Number of bytes that contain relevant user data
8 bits 0x00 = 0 bytes
...
0x20 = 32 bytes
Data (byte n)
User data
8 bits 0x00...0xFF
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