iHP Manual 35 | P a g e
3.1.2 Internal Device Address inside iHP
An iHP system is composed of different independent devices (modules and PFC devices). The internal device
address is used to identify the specific device or module group in which user wants to communicate. Please
see below table for the Internal Device Address inside the iHP system.
Table 3-1
iHP Internal Device Address
Device/Group iHP RACK 24kW
Device/Group iHP RACK 12kW
Note: Module group configuration is discussed in Section 5.1.5 and module group functionality is discussed in Section 6.
3.2 iHP Commands
The iHP command set is patterned from PMBus, but uses a proprietary transaction protocol. All PFC devices
have a specific set of commands, all module devices have a specific set of commands, and the ISOCOMM
device has a specific set of commands. The PFC command list is in Appendix B.1, the module command list is
in Appendix B.2, and the ISOCOMM command list is in Appendix B.3.
iHP commands can be classified into four groups: