Background:
SmartLogger1000A can be connected to and manage only one power meter that supports the Modbus-RTU.
The SmartLogger1000A can be connected to and manage multiple power meters that support the DL/T645 protocol.
Application Notice:
A multifunctional power meter consists of the measurement unit and data processing unit. It provides time division and required electricity measurement functions in addition to the active/reactive power measurement. The power meter can also display, store, and output data.
Procedure:
Connect the power meter in one of the empty RS485 communication port and follow the steps below.
1. Configure the communication and protocol for the port
Login to the WebUI as Advanced User:
Select the Settings tabàComm. Param., and choose RS485. On the displayed page, set Protocol to DL/T645/ or Modbus, set the parity and baud rate accordingly with the power meter instruction and Submit
The default parity mode is even parity for DL/T645. Set parameters based on the power meter instructions.
According to DL/T645, the default baud rate is 2400 bps. Set Baud rate based on the power meter instructions. SmartLogger1000A supports 1200bps, 2400 bps, 4800 bps, 9600 bps, 19200 bps, and 115200 bps at present.
2. Adding the power meter on the WebUI
As Advanced User click the Maintenance tab and choose Device Mgmt. àConnect Device, and click Add Devices. In the displayed dialog box, set Device Type to Power Meter, Comm. protocol to DL/T645 or Modbus RTU, Port number where the meter is connected, and specify Address correctly, as shown in the following figure:
Smart Logger 1000 can connect to multiple power meters with DL/T645 protocol. Ensure that the addresses of the power meters are not duplicate.
3. Set-up Power Meter Parameters
3.1 Power meter with Modbus RTU protocol
As Advanced User choose SettingsàComm. Param. àPower Meter, select the power meter type and Submit:
If the power meter is not define by default in the Smart Logger 1000A default list you need to choose Power Meter Type - Other and fill the Signal address, Number of Register, Gain and Data Type accordingly with the meter instruction:
3.2 Power meter with DL/T645 protocol
If you connect a meter with DL/T645 protocol set the running parameter as below:
From Monitoring menu select the MeteràRunning Param. àset the parameter accordingly with the meter instruction
4. Querying device running information
From Monitoring menu select the Power Meter and check the device status and the value that the meter reading are correct:
