Omron KM50 Communications Manual page 105

Section 4 Modbus Communications Protocol
• Error Completion
Function code
86 hex
● Example Command and Response
The following example is for Reset Total Power Consumption. (In this case, the slave address is 01
hex.)
Reset Total Power Consumption (command code: 03, related information: 00)
Command:
Response:
(5) Operation Commands and Precautions
• Reset Total Power Consumption
The total power consumptions are reset to 0.
The consumptions are totaled again as soon as they are reset.
• Go to Measurement Mode
The Power Monitor is changed to Measurement Mode.
When moving to Measurement Mode, the Power Monitor saves changes to settings to
EEPROM and is reset. After being reset, the Power Monitor operates with the new settings.
• Go to Operation Setting Mode
The Power Monitor is changed to Operation Setting Mode.
Change to this mode before changing any parameters.
• Go to Protection Setting Mode
The Power Monitor is changed to Protection Setting Mode.
• Initialize Measurement Log
All measurement log data is initialized.
• Initialize Settings
All parameters are returned to the default settings.
• Initialize Professional Level
The measurement values in the Professional Level are initialized.
• Initialize All
All of the following are initialized: total power consumptions, measurement log, settings, and
Professional Level.
• Reset Maximum/Minimum
The maximum and minimum measurement values are reset.
Reset Maximum: The maximum values are reset to 0 (the minimum value).
Reset Minimum: The minimum values are reset to the maximum values for the currently
• Reset Software
The CPU is reset and the Power Monitor enters the same status as when it is turned ON.
No response is returned for this operation command (there is no service response PDU).
4-12
Error code Error name
02 hex Variable
address error
03 hex Variable data
error
04 hex Operation
error
01 06 00 00
01 06 00 00
selected VT or CT (type and ratio).
Description
The write start address is not 0000 hex.
The write data is incorrect.
The command code or related information
is incorrect.
The Controller cannot write the data in its
present operating status.
03 00 89 3A (CRC-16)
03 00 89 3A (CRC-16)