ZD-00896 Rev. 5.2, 9-Apr-13

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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

Auxiliary Device

Register

Content

Register

Content

ST

Status Register

ST

Status Register

VOH

Output Voltage High Byte

reserved

VOL

Output Voltage Low Byte

reserved

IO

Output Current

reserved

TMP

Temperature

reserved

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.