Receiver Ready Test Failed

By MikeAtson1, 16 May, 2025

Forums

Hi,

During HDLC Test #1 in the conformance test, the client sends a Receiver Ready frame with SenderFrame = 0x10, but the meter does not respond. The test fails with “Receiver Ready failed.”

I'm using the following code:

reply.Clear();
dev.Comm.client.HdlcSettings.SenderFrame = 0x10;
byte[] rrFrame = dev.Comm.client.ReceiverReady(reply);
dev.Comm.ReadDataBlock(rrFrame, "HDLC test #1. Receiver Ready ", 1, tryCount, reply);
I’ve noticed that there are two overloads of the ReceiverReady() method, and one of them is marked as [Obsolete]:

[Obsolete]
public byte[] ReceiverReady(RequestTypes type)

public byte[] ReceiverReady(GXReplyData reply)
I'm currently using the non-obsolete one with GXReplyData, but still no response is received from the meter.
Could the issue be related to the HDLC state or the use of these methods?

Any suggestions or clarification would be appreciated.

Thanks!

Hi, The meter must reply…

Hi,

The meter must reply with RR or the test fails.

BR,
Mikko

Hello, Meter code is https:…

Hello,

Meter code is

https://github.com/Gurux/GuruxDLMS.c/tree/master/GuruxDLMSServerExample2

Tested by latest gxdlmsdirector.

11:13:36 Send SNRM request.
TX: 7E A0 07 03 21 93 0F 01 7E
11:13:36
RX: 7E A0 1E 21 03 73 C3 7A 81 80 12 05 01 80 06 01 80 07 04 00 00 00 01 08 04 00 00 00 01 53 3B 7E
11:13:36 Send AARQ request.
TX: 7E A0 2B 03 21 10 FB AF E6 E6 00 60 1D A1 09 06 07 60 85 74 05 08 01 01 BE 10 04 0E 01 00 00 00 06 5F 1F 04 00 62 1E 5D FF FF 88 55 7E
11:13:36
RX: 7E A0 37 21 03 30 6C 7C E6 E7 00 61 29 A1 09 06 07 60 85 74 05 08 01 01 A2 03 02 01 00 A3 05 A1 03 02 01 00 BE 10 04 0E 08 00 06 5F 1F 04 00 00 00 10 02 00 00 07 1C EA 7E
11:13:36 HDLC test #1. Disconnect request
TX: 7E A0 07 03 21 53 03 C7 7E
11:13:36
RX: 7E A0 1E 21 03 73 C3 7A 81 80 12 05 01 80 06 01 80 07 04 00 00 00 01 08 04 00 00 00 01 53 3B 7E
11:13:36 HDLC test #1. SNRM request
TX: 7E A0 07 03 21 93 0F 01 7E
11:13:36
RX: 7E A0 1E 21 03 73 C3 7A 81 80 12 05 01 80 06 01 80 07 04 00 00 00 01 08 04 00 00 00 01 53 3B 7E
11:13:36
SNRM request succeeded. MaxInfoLengthTransmit: 128 MaxInfoLengthReceive: 128 WindowSizeTransmit: 1 WindowSizeReceive: 1
11:13:36 HDLC test #1. Receiver Ready
TX: 7E A0 07 03 21 11 15 A6 7E
11:14:25 Failed to receive reply from the device in given time.
11:14:25
Receiver Ready failed.
11:14:25 HDLC test #1. Disconnect request
TX: 7E A0 07 03 21 53 03 C7 7E
11:14:25
RX: 7E A0 1E 21 03 73 C3 7A 81 80 12 05 01 80 06 01 80 07 04 00 00 00 01 08 04 00 00 00 01 53 3B 7E
11:14:25
<a href="https://www.gurux.fi/gurux.dlms.ctt.tests#hdlc1">Test #1 failed.</a>
11:14:25 HDLC test #2. SNRM request
TX: 7E A0 07 03 21 93 0F 01 7E
11:14:25
RX: 7E A0 1E 21 03 73 C3 7A 81 80 12 05 01 80 06 01 80 07 04 00 00 00 01 08 04 00 00 00 01 53 3B 7E
11:14:25
SNRM request succeeded. MaxInfoLengthTransmit: 128 MaxInfoLengthReceive: 128 WindowSizeTransmit: 1 WindowSizeReceive: 1