Comfort  Automation/ Security System Forums Home
Home Search search Menu menu Not logged in - Login | Register
Comfort Automation/ Security System Forums > Products > GSM Module > UCM/GSM does not send SMS after Power Failure

UCM/GSM does not send SMS after Power Failure
 Moderated by: admin
 New Topic   Reply   Printer Friendly 
 Rate Topic 
AuthorPost
 Posted: Friday Nov 25th, 2022 08:52 am
   PM  Quote  Reply 
1st Post
slychiu
Administrator


Joined: Saturday Apr 29th, 2006
Location: Singapore
Posts: 5493
Status: 
Offline

  back to top

We have encountered problems reported in some situations ehere after a power failure (with battery connected), the UCM/GSM does not send the Power Failure Alarm SMS. It also does not send SMS for any alarms which occur after that.  But the GSM signal level shown obn the Status bar of the GSM Module is still OK ie 1 to 4.

If the UCM/GSM is reset, it starts to send SMS again. This may be caused by an issue wih some of the SIMCOM GSM Modules. When there is a voltage drop (caused by power off) dropping to the battery voltage, it causes the GSM module to not work correctly until the module is reset. 

The workaround is to add a Response to automatically RESET the UCM/GSM ID (eg UCM #2 if the GSM Module has ID2) as shown below

Attachment: Screenshot 2022-11-24 143243.jpg (Downloaded 5 times)



 Posted: Friday Nov 25th, 2022 08:53 am
   PM  Quote  Reply 
2nd Post
slychiu
Administrator


Joined: Saturday Apr 29th, 2006
Location: Singapore
Posts: 5493
Status: 
Offline

  back to top

Next, go to Alarm Type > Power Failure. The Alarm Response should be set to the new Reset GSM Response.  This means that when there is a Power afailure, the UCM/GSM selected by the ID will automatically reset iitself


Attachment: Screenshot 2022-11-24 143415.jpg (Downloaded 5 times)

Last edited on Friday Nov 25th, 2022 08:57 am by slychiu



 Posted: Friday Nov 25th, 2022 08:56 am
   PM  Quote  Reply 
3rd Post
slychiu
Administrator


Joined: Saturday Apr 29th, 2006
Location: Singapore
Posts: 5493
Status: 
Offline

  back to top

Power Failure Restore (AC back on) may also cause the same problem. To fix this go to Miscelaneous Events > select AC Restore Response, and select the Reset GSM Response as well. This means that when the Mains Power is restored the Reset GSM response also runs, thus resetting the GSM

Attachment: Screenshot 2022-11-25 174407.jpg (Downloaded 5 times)



 Current time is 08:03 pm
Comfort Automation/ Security System Forums > Products > GSM Module > UCM/GSM does not send SMS after Power Failure
Top




UltraBB 1.172 Copyright © 2007-2014 Data 1 Systems