molex Brad HarshIO 600 eIP - Page 68

HarshIO 600 eIP
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68
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IP67 IO-Link Modules for EtherNet/IP
Negative Response:
If the read fails, the response has the following
Name
Data type
Description
IO-Link master Error
UINT
1
Service not available
2
Port Blocked
3
Timeout
4
Invalid index
5
Invalid sub index
6
Wrong port
7
Wrong port function
8
Invalid length
9
ISDU not supported
IO-Link device error
USINT
Please refer to the specific IO-Link device user’s manual
IO-Link device additional error
USINT
Please refer to the specific IO-Link device user’s manual
Example:
Reading the L+ voltage of the Molex HarshIO IO-Link digital hubs (Refer to the TEDIO-8D0P-808 user’s
manual) connected to Port 0
Parameters
Description
Class
0x310
IO-Link parameter object
Instance attributes
8
IO-Link port number where the IO-Link device is connected
Instance service
0x50
READ ISDU
Data
Name
Data type
Description
Index
UINT16
0x46 0x00
Sub-Index
UINT8
0x00
Reserved
UINT8
0x00
Len
UINT16
0x02 0x00
The 2 bytes response will be 00 F0. (24V)
Service Write ISDU details
This service is used to write IO-Link device parameters
Request:
Parameters
Description
Class
0x310
IO-Link parameter object
Instance attributes
1…8
IO-Link port number where the IO-Link device is connected
Instance service
0x51
WRITE ISDU
Data
Name
Data type
Description
Index
UINT16
Targeted index of the ISDU request
Sub-Index
UINT8
Targeted sub-index of the ISDU request
Reserved
UINT8
Shall be set to 0
Len
UINT16
Len for the ISDU request. IDSU request can’t be greater than 512
bytes
Data
UINT16
2 first bytes of data to write (needed for 32 bits data alignment)
Data[]
SINT[len-Data]
Data to write. Length of data shall be equal to “Len-Data”