- The SmartLogger3000 can be connected to and manage multiple power meter that supports the Modbus-RTU.
- The SmartLogger3000 can be connected to and manage multiple power meters that support the DL/T645 protocol.
When there are strong electromagnetic disturbances, which may affect communication, a shielded cable (with two twisted signal conductors) should be used. The terminal resistances (RT=120...150Ω) must be installed on the converter side and on the last instrument connected along the line. Thanks to these resistances, the reflected signal along the line are reduced. However, in the case of short distances (max 100 m) or low communication speed (bps), there is no need of resistances.
Connect Janitza UMG 103-CBM with Smartlogger3000
Configure the communication and protocol for the port
Login to the WebUI as admin:
Select the Settings > Comm. Param., and choose RS485. On the displayed page, set Protocol to Modbus, set the parity and baud rate accordingly with the power meter instruction and Submit.
The default settings for Janitza UMG 103-CBM are:
- Protocol: Modbus
- Baud rate: 9600
- Address: Set accordingly with meter instruction (check below)
- Parity: none
- Stop Bit: 1
Set the address for Janitza UMG 103-CBM: below you have an example with communication address 3 set on the meter. Set the meter communication address.
Adding the power meter on the WebUI
As admin click the Maintenance tab and choose Device Mgmt. > Connect Device, and click Add Devices. In the displayed dialog box, set Device Type to Power Meter, Comm. protocol to Modbus RTU, Port number where the meter is connected, and specify Address correctly, as shown in the following figure:
The SmartLogger3000 can connect to multiple power meters with DL/T645 and Modbus RTU protocol. Ensure that the addresses of the power meters are not duplicated.
Setting Power Meter type
As admin choose Monitoring > Select Power Meter > Running Param., select the power meter type Janitza UMG 103-CBM and Submit:
Querying device running information
From Monitoring menu select the Power Meter and check the device status and the value that the meter reading is correct:
You can download the User manual for the UMG 103-CBM power quality analyzer from the link: https://photomate.zendesk.com/hc/en-gb/articles/5065752865821-Janitza-UMG-103-CBM