10.1.4 Monitoring Data
The DPMs can retrieve current, temperature, output voltage, and status information from each of the POL converters
and status information only from Auxiliary Devices. Monitoring data is stored in RAM and can be accessed via the
I2C bus. Monitoring registers are read only.
The monitoring data consists of 5 Bytes for each POL converter and Auxiliary Device as shown in Table 3. When the
status monitoring is enabled, the ST registers get continuously updated. When the parametric monitoring is enabled,
the VOH, VOL, IO, and TMP registers get continuously updated. Scaling data from the registers is specific to each
DP and ZY series POL. Refer to the DM7300 Programming manual for calculation information.
Table 3: Monitoring Data Registers
POL Converter
Content
Auxiliary Device
Content
Status Register
Register
Register
ST
VOH
VOL
IO
Status Register
Output Voltage High Byte
Output Voltage Low Byte
Output Current
ST
reserved
reserved
reserved
reserved
TMP
Temperature
10.1.5 User Memory
This non-volatile memory block is reserved for users’ notes and not related to other functions in the DPM. It can be
used to save user-specific information such as manufacturing data and location, serial number, application code,
configuration file version, warranty or repair information, etc. A total of 1024 Bytes organized in 4 pages is provided.
The user memory can be accessed via the GUI System Configuration window shown in Figure 8 or directly via the I2C
bus using specific commands. Content of the user memory is saved into the configuration file when the file is saved.
Note that this does not change the current DPM contents until the DPM is programmed with the file currently in
memory.
ZD-00896 Rev. 5.2, 9-Apr-13
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