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E149721
B - 23
B: Modbus Map and Retrieving Logs
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
4. Compute #RecPerWin as (246\18)=13. Write 0x0D01 0000 0000 -> [0xC350, 3
reg] Write Retrieval Info. Set Current Index as 0.
Send
:
0110 C350 0003 06 0D01 00 000000
Command
:
Register Address:
0xC350
# Registers:
3, 6 bytes
Data
:
Records per Window:
13. Since the window is 246 bytes, and the record
is 18 bytes, 246\18 = 13.66, which means that
13 records evenly fit into a single window. This is
234 bytes, which means later on, we only need to
read 234 bytes (117 registers) of the window to
retrieve the records.
# of Repeats:
1. We are using auto-increment (so not 0), but
not function code 0x23.
Window Status:
0 (ignore)
Record Index:
0, start at the first record.
----------------------------------------------------
Receive
:
0110C3500003 (command ok)
NOTES
:
• This sets up the window for retrieval; now we can start retrieving the records.
• As noted above, we compute the records per window as 246\18 = 13.66, which is
rounded to 13 records per window. This allows the minimum number of requests to
be made to the meter, which increases retrieval speed.
Summary of Contents for Shark 200S
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