Rockwell Automation Publication 750COM-UM009A-EN-P - May 2017 163
EtherNet/IP Objects Appendix D
Host DPI Parameter Object
To access ‘Device’ parameters, use the DPI Parameter Object (Class Code
0x93).
The number of instances depends on the number of parameters in the
device. The total number of parameters can be read in Instance 0,
Attribute 0.
Table 78 - Host DPI Parameter Object: Class Code
Hexadecimal Decimal
0x9F 159
Table 79 - Host DPI Parameter Object: Instances
Instances Device Example Description
(Hex.) (Dec.)
0x0000…0x0FFF 0…4095 Host Drive 0 Class Attributes (Drive)
0x1000…0x1FFF 4096…8191 Port 1 1 Drive Parameter 1 Attributes
0x2000…0x2FFF 8192…12287 Port 2 2 Drive Parameter 2 Attributes
0x3000…0x3FFF 12288…16383 Port 3
…
…
0x4000…0x4FFF 16384…20479 Port 4 4096 Port 1 Class Attributes
0x5000…0x5FFF 20480…24575 Port 5 4097 Port 1 Host Parameter 2
Attributes
0x6000…0x6FFF 24576…28671 Port 6
…
…
0x7000…0x7FFF 28672…32767 Port 7
0x8000…0x8FFF 32768…36864 Port 8
0x9000…0x9FFF 36864…40959 Port 9
0xA000…0xAFFF 40960…45055 Port 10
0xB000…0xBFFF 45056…49151 Port 11
0xC000…0xCFFF 49152…53247 Port 12
0xD000…0xDFFF 53248…57343 Port 13
0xE000…0xEFFF 57344…61439 Port 14
Table 80 - Host DPI Parameter Object: Class Attributes
Attribute ID Access Rule Name Data Type Description
0 Get Number of Instances UINT Number of parameters in the device
1 Set Write Protect Password UINT 0 = Password disabled
n = Password
2 Set NVS Command Write USINT 0 = No Operation
1 = Store values in active memory to NVS
2 = Load values in NVS to active memory
3 = Load default values to active memory
3 Get NVS Parameter Value Checksum UINT Checksum of all parameter values in a user set in NVS
4 Get NVS Link Value Checksum UINT Checksum of parameter links in a user set in NVS
5 Get First Accessible Parameter UINT First parameter available if parameters are protected by passwords. A ‘0’
indicates that all parameters are protected.
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