How to close HDLC Mode E?

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By Jeroen88 , 21 April, 2021
Forums
Gurux.DLMS

Hi Mikko,

If a meter uses IEC62056-21 Mode E as starting protocol, after sending <ACK> '2' 'Z' '2' <CR> <LF> the meter accepts HDLC commands. But what if I want to return to before Mode E? If you want to return from Mode C you can send a break (<SOH> 'B' '0' <ETX> <BCC>), but what is the Mode E equivalent?

Best Jeroen

Kurumi

5 years 1 month ago

Hi,

Meter is returning from Mode E when the HDLC Disconnect message is sent to the meter.

BR,
Mikko

Kurumi

5 years 1 month ago

Hi,

You can force to send disconnect message setting force parameter to true:

GXDLMSClient.DisconnectRequest(true);

Otherwise, the disconnect is sent only when a client has established a connection to the meter.

BR,
Mikko