User guide

UG_6613_ 040 6613_PSU_1+1S_URT_V1_00 Firmware Description Document
Rev. 1.0 9
6.3 MPU Data Access Command
All the measurement calculations are stored in the MPU data addresses of the 78M6613. The host
requests measurement information using the MPU data access command which is a right parenthesis
)
To request information, the host sends the MPU data access command, the address (in hex) which is
requested, the format in which the data is desired (Hex or Decimal) and a carriage return. The contents
of the addresses that would be requested by the host are contained in Section 7.
6.3.1 Individual Address Read
The host can request the information in hex or decimal format. $ requests information in hex, and ?
requests information in decimal. When requesting information in decimal, the data is preceded by a + or
a -. The exception is )AB? which returns a string (see Table 3, MPU location address 0xAB).
An example of a command requesting the measured power in Watts (located at address 0x08) in decimal
is as follows:
>)08?<CR>
An example of a command requesting the measured power in Watts (located at address 0x08) in hex is
as follows:
>)08$<CR>
6.3.2 Consecutive Read
The host can request information from consecutive addresses by adding additional ? for decimal or
additional $ for hex.
An example of requests for the contents in decimal of ten consecutive addresses starting with 0x12 is:
>)12??????????<CR>
An example of requests for the contents in hex of ten consecutive addresses starting with 0x12 would be:
>)12$$$$$$$$$$<CR>
Note: The number of characters per line is limited to no more than 60.