Maximum And Minimum Interval Setting; Parameter Grouping - Delta DPM-D520I User Manual

D e l t a D i n - r a i l P o we r M e t e r D P M - D 5 2 0 I U s e r
4.3.3

Maximum and Minimum Interval Setting

Interval: Reset the maximum and minimum values at the end of interval; options are day, month, year
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and disable (default). Corresponding Modbus address is 0x55A.
4.3.4

Parameter Grouping

Block transmission: Mirror the address of the to-be-read measured values to sequential Modbus

addresses. The mirrored addresses would be 0x100 (Min) –0x1E7 (Max). The default is 0xFFFF.
Configure Modbus address to be 0x50c~0x551 and read MODBUS address 0x600~0x645.
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Set up Steps
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1. Write the address of the to-be-read measured values into sequential Modbus addresses
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0x50C–0x551 with function code 0x06 (single write) or 0x10 (multi-write).
2. Once you complete Step 1, you can read the mirrored Modbus address 0x600–0x645 with function
code 0x03 (multi-read) for the measured values.
Example

1. You can use function code 0x06 (single write) or 0x10 (multi-write) to read the average Voltage L-N
value. Write the value 0x100 into Modbus 0x50C and the value 0x101 into Modbus 0x50D in a
consecutive order to read the average Voltage L-N value (Modbus 0x100–0x101).
2. You can use function code 0x06 (single write) or 0x10 (multi-write), to read the average current value.
Write the value 0x126 into Modbus 0x50E and the value 0x127 into Modbus 0x50F in a consecutive
order to read the average current value (Modbus 0x126–0x127). Refer to section 5.1 for more
information on the codes and Modbus addresses.
3. Once you complete Step 1, you can read mirrored Modbus address 0x600–0x601 with function code
0x03 (multi-read). After the value is converted to IEEE754 format, you can read the average Voltage
L-N value. You can also read mirrored Modbus address 0x602–0x603 with function code 0x03
(multi-read). After the value is converted to IEEE754 format, you can read the average current value.
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