Command interface
The command interface allows you to configure the power meter by sending specific commands using Modbus protocol. Reference the online Modbus register list for meter commands, results, and data types.
 WARNING |
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Unintended Operation
Do not use this device for critical control or
protection of persons, animals, property or equipment.
Failure to follow these instructions can result in death, serious injury, or equipment
damage.
|
| Command block | Protected command interface | Unprotected command interface | |
| Register number | Register number | ||
| A |
Command |
5000 |
5250 |
| B |
Semaphore |
5001 |
5251 (Ignored) |
| C |
Parameters |
5002 - 5124 |
5252 - 5374 |
| Meter results | Register number | Register number | |
| D |
Status |
5125 |
5375 |
| E |
Result |
5126 |
5376 |
| F |
Data |
5127 - 5249 |
5377- 5499 |
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A: In the Command register, enter a meter command.
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B: In the Semaphore register, when using the protected command interface, enter the semaphore you are given (refer “Using the Protected Command Interface”). The semaphore register cannot be used with unprotected command interface.
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C: In the Parameters register, enter all parameters for a meter command.
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D: The Status register displays 0 when the power meter receives a command. Once the command is completed, the status register displays the same value as the command register.
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E: The Result register indicates if the command was successful, and if not, what is the error that occurred.
F: The Data register displays the executed parameters of a successful command and the invalid parameters based on data type of an unsuccessful command.
There are two command interfaces, protected and unprotected, described in the following sections.