CEWE Prometer 100 W with Gurux GXDLMSDirector

By Viet , 12 December, 2023
Forums
DLMSDirector

Hi!

I'm trying to read the CEWE Prometer 100 W with GXDLMSDirector and it always return this message "Failed to receive reply from the device in given time"
I use the Device monitoring studio to capture the READ/WRITE packets in reading time and realise that the source/destination in write packet is not simillar to the packet I captured when I successfully connected to the meter via M-Cubed 100 application.

This is captured packet with GXDLMSDirector:
7E A0 0A 00 02 68 2D 21 93 3F 1D 7E
and this is captured packet with M-Cubed 100:
7E A0 07 03 21 53 03 C7 7E

You can see the source/destination in these packes is difference (00 02 with 03 21)

Please give me an advice.

Thanks in advance!

Kurumi

2 years 6 months ago

Hi,

If you don't use a serial number as a meter address the settings are then the same.

Change address type back to Default. Then make sure that the physical server address is 1 and connect.

BR,
Mikko

Viet

2 years 6 months ago

Hi Mikko,
sorry for late reply.

Maybe there's a confusion here, I used a tool to configure the serial number of meter from "WP023121" to "12345678" and I used this serial number in M-Cubed 100 for successful reading too.

And when I change address type back to "Default", then set the physical address to 1, it still throw "Failed to receive reply from the device in given time".

And I want to read the meter with serial number cause I want to read multiple meters, so I think the serial number is required.

Please give me an advice.

Thanks in advance!

Image

Kurumi

2 years 5 months ago

Hi,

M-Cubed 100 is using the server address that I described in the HDLC message that you share and I get those values from the HDLC message.
7E A0 07 03 21 53 03 C7 7E

Client address is 0x10 and physical address is 1.

BR,
Mikko

Viet

2 years 5 months ago

Hi Mikko, thanks for your advice.

I successfully connect/read the meter with these settings (using newest GXDLMSDirector and Gurux.DLMS github version):
Authentication: Low,
Client address: 0x20
Password: ABCD0001
Address Type: Default or Custom
Logical Server: 0
Physical Server: 1
Media: Serial (COM3)

My problem is, I want to read multiple meters, with each meter have an unique serial number. How can I use the serial number for connecting and data reading? or can I read multiple meters using physical number?

Thank you!

Additional information: I still cannot connect to the meter using Gurux.DLMS version 7.0.14.1, GXDLMSDirector (corresponding version) - (debug in visual studio)

Kurumi

2 years 5 months ago

Hi,

Is your meter using RS-485 or RS-232? You can connect multiple meters only for the RS-485 bus.

Some meters use using meter serial number as a meter address. I don't know if CEWE supports that.

You can also set a unique HDLC device address for each meter using IEC HDLC setup object.

https://www.gurux.fi/Gurux.DLMS.Objects.GXDLMSIecHdlcSetup

In that way, each of your meters can have a unique HDLC address.

BR,
Mikko

Viet

2 years 5 months ago

Hi Mikko,

I am using RS-485.

I will update the newest information about CEWE prometer 100 reading here.

Thank you!