CTZU - no timezone update

IoT Modules HL78
1

Hi,
I’ve started to work with HL7800 (4.6.9.4).
I’m in Poland, so my timezone is GMT+1 and we have daylight saving - now it’s GMT+2
Orange supports NITZ, beacuse any other modems (Quectels, Thales) return +CTZU response, but HL7800 not:
0007:80> AT+CTZR?
0007:80< +CTZR: 2
0007:80< OK
0007:90> AT+CTZU?
0007:90< +CTZU: 1
0007:90< OK
0034:09< +KSUP: 0
0035:75< +CEREG: 2
0036:42< +SIM: 0
0036:42> AT+CCLK?
0036:42< +CCLK: “00/00/00,00:00:00-0”
0036:43< OK
0045:37< +CEREG: 1,“D309”,“05322A10”,7,“00101101”,“01000111”
0045:37< +CEREG: 4,1,“D309”,“05322A10”,7,“00101101”,“01000111”
0045:48> AT+CCLK?
0045:48< +CCLK: “22/09/09,12:50:27+0”
0045:48< OK

CTZU is set to 2
" 2 — Enable time zone change event reporting with URC +CTZE: ,,[] "
so I should get +CTZE: …, but I get no URC with time.

What am I doing wrong?

Regards
Darek

2

Hi @darek.benert ,
Welcome you to our community!
Please share with me the specific step-by-step you did that the issue happens so I can recheck on my module.

Thanks,

3

Ok - but next week, because I’m on vacation😀

Wysłano z telefonu / Sent from phone

-------- Oryginalna wiadomość --------
Od: Jerdung via Sierra Wireless Forum notifications@sierrawireless.discoursemail.com
Do: darek.benert@wares.tech
Temat: [Sierra Wireless Forum] [IoT Modules/HL78] CTZU - no timezone update

| jerdung
September 13 |

  • | - |

Hi @darek.benert ,
Welcome you to our community!
Please share with me the specific step-by-step you did that the issue happens so I can recheck on my module.

Thanks,

4

Hi,
please look at the logs below.
I set CTZU and CTZR to 0, clock to fake time, then restart modem for sure.
After wakeup the modem I set CTZU=1 and CTZR,=2, but I I do not see any URC.
Time is synchronised, but CCLK response is cut and not correct - in Poland it should be “+08”, not “-0”

0018:04> AT+CTZR=0
0018:06< OK
0018:16> AT+CTZU=0
0018:19< OK
0018:50> AT+CCLK=“20/01/01,00:00:00+08”
0018:53< OK
0019:72> AT+CPWROFF
0019:73< OK
[0021:36] Modem off
[0030:46] Modem on
0035:22< +KSUP: 0
0038:33< +SIM: 0
0045:47< +CEREG: 0
0045:49< +CEREG: 2
0045:98< +CEREG: 1,“D309”,“05322A10”,7,“00101101”,“01000111”
0056:23> AT+CTZU=1
0056:44< OK
0056:54> AT+CTZR=2
0056:75< OK
0056:86> AT+CCLK?
0056:86< +CCLK: “20/01/01,00:00:37+0”
0056:86< OK
0065:48> AT+CCLK?
0065:48< +CCLK: “20/01/01,00:00:45+0”
0065:49< OK
0067:64> AT+CCLK?
0067:64< +CCLK: “22/09/22,13:05:29-0”
0067:64< OK
0078:42> AT+CCLK?
0078:42< +CCLK: “22/09/22,13:05:39-0”

5

Hi @darek.benert
I could reproduce the behavior as your steps on my module. So, I think it’s better to raise the issue via email tech support: support@sierrawireless.com for further deeper support.

Thanks,