Comfort Automation/ Security System Forums > Products > Door Stations > DM02 Interface Modul Troubleshooting |
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darnold Member
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I have two DM02 modules supporting two Door Stations (the door stations are third party--basically a speaker, a mic and a button). This setup has worked fine for years. However, recently the modules appear to no longer work? For example, when "Scan for modules" is executed the modules do not appear. Further, when I attempt to use the module, for example a Gate Open Response (to fire the relay on the DM02) after about a second it throws-up a Communications Failure alert and essentially causes a system crash. Is there any way to run some sort of diagnostic or further troubleshooting or should I just assume the modules have gone bad? Odd that they both would go bad. Last edited on Friday Jul 5th, 2024 06:39 pm by darnold |
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slychiu Administrator ![]()
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I would remove one of the dm02 modules at the time and check if that oine is cauing the problem |
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darnold Member
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As always thanks for the quick response. I have done exactly as you have suggested and it does appear that one of the DM02 modules is bad causing the Communication Failure alert. The other is working fine when operating on it's own. Could you suggest where I might get a replacement (the dealer I used in the past is no longer trading). The installation is in Portugal but I live in the UK so I can source it from either location. Thanks again. |
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darnold Member
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Well I thought I had it cracked but I am not so sure. It is certainly possible that both DM02s are bad. I know one of the modules is defective. I thought the other was okay but not sure. Let me see what you think. My configuration is as follows: Comfort ULT running the latest firmware v7.213. For testing purposes, I have 2 UCMs (an Ethernet UCM and Dynalite Gateway UCM). I have just one of the DM02 connected and I have a KP04 connected as well. I have 16 Zones connected to the system. Let me describe exactly what happens when I power on the system (without the battery connected): -KP04 Display Reads: ID#1 Ver1.08e -After about 15 seconds a series of rapid beeps are heard lasting 7 seconds from the KP04 speaker -KP04 announces "Security Off" -KP04 Displays the date and time and "Security Off" Pressing the SW2 on the DM02 causes the phones to ring in the home and the KP04 announces "Front Door". The UCM Monitor shows the following: < DB31 < SM000140 < SM000140 < SM000000 < SM000000 < SM000000 < SM000000 < DBFF At this point everything seems fine. I have very simple scripts for opening and closing a gate located on the property. For example to open the gate the response is: If Input Gate = 0 Then Open Door 1 1 10 End If If I then run the GateOpen response either through the Home Control menu on the KP04 or via Comfort Configurator the following occurs: -After about 15 seconds a series of rapid beeps is heard from the KP04 speaker followed by a flashing message saying "Communication Failure Keypad 1." (It appears that the system has reset itself). -KP04 then announces security off and displays the normal date&time and alarm status. -The relay on the DM02 does not fire (the gate remains closed). The UCM Monitor shows the following: > DA4F107304C831010AFF < Cs01 < Cs02 > DA4F107304C831010AFF > DA4F107304C831010AFF < Cs01 Occasionally, if I execute the GateOpen response it will repeatedly flash the message "Communication Failure Keypad 1" and the phones will ring and the warble tone is heard. Very often I am forced to cut the power to the system in order to stop this. As I said at the beginning, I suppose both DM02s could be bad but I thought I would check with you first. Thanks for the help! |
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slychiu Administrator ![]()
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Can you read the event log and checjk what happens at the time the button is pressed. Does the event log show the system is reset? Reset would indicate that it may be problem with the responses |
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darnold Member
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The system works fine when the SW2 button on the DM02 is pressed (or the call button is pressed on door station). The problem is when I execute the GateOpen or GateClose responses via the Home Control Menu on the Keypad. This is the log entries after starting the alarm system: 01/06 00:00 Reset Comfort Controller 01/06 00:02 Sign in - User # 2 07/10 09:46 Date/Time Change UCM 2 07/10 09:47 Reset Comfort Controller The response I am attempting to execute (GateClose) is very simple: If Input Gate <> 0 Then Open Door 1 1 10 End If BTW, if the gate is already closed then this task runs fine...it only causes a Communication Failure and reset when it tries to execute the instruction Open Door 1 1 10. Last edited on Wednesday Jul 10th, 2024 10:06 am by darnold |
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slychiu Administrator ![]()
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The Open door 1 action activates the Relay to open the door. Can you disconnect the terminal block for the relay COM1/NC/NO and try that again? The open door 1 1 action is causing a system reset. It may be due to the relay action |
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darnold Member
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That was one of the first things I did. I get the same behaviour on either DM02 as well as trying to fire the second relay (Door 2) on either board. |
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slychiu Administrator ![]()
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Perhaps both were damaged by lightning I suggest to buy1 DM02 to test if that works |
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darnold Member
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Will do and I will report back. |
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darnold Member
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Well I installed a brand new DM02 and have the same problem. If I execute the command "Open Door 1 1 10" after a few seconds it causes a Communication Failure and the system to reset. I have tried everything I can think of including running the DM02 off UCM01 only or with only the UCM02 connected, removing the keypad from the system, changing and rewriting the location of the Response, changing the response itself, using Door 2 instead of Door 1, executing the response without a DM02 connected at all, etc. I am stumped as to why this worked for years and now it does not. I really need to figure this out but am at a loss as what to do next. |
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darnold Member
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I don't know if this helps in troubleshooting but when I execute the Open Door command I can hear a very low buzzing (or hum) sound that seems to come from the main alarm PCB for about 3-to-5 seconds before the system resets itself. |
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slychiu Administrator ![]()
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I suspect there is a fault in the Main Comfort, as you have eliminated the DM02 |
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darnold Member
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The saga continues. I received a new CM9001 only to find that it appears not to work with my current power supply. I plugged it in to the transformer but nothing happens, no lights on the LEDs etc. However, if I connect the backup battery and press the SW51 button the board comes to life. Does this mean I need a different power supply? I also note that the configuration of the new CM9001 version ULT 7.xx is different than the one I was replacing which is a ULT 5.xx version. So it is not a straight swap as I had hoped. Can I still use my original LEM module with it? It is not clear how though, since the connector has been relocated and the ribbon cable can no longer reach with the board mounted on top. Further, I have a RGR module as well as DP connector on the old 5.xx board. These appear to have been removed from the 7.xx board. Do I need a ringer module or do I now need to get a DSI module (although it says in the manual it is not required for the CM9001?) Last edited on Thursday Jul 25th, 2024 09:54 pm by darnold |
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slychiu Administrator ![]()
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Sorry for your frustration. CM9001 uses a different transformer, which is a smller and ligher and more efficient switching power supply, see below ![]() see http://www.comfortforums.com/forum140/5090.html for the differences between CM9000 vs CM9001 http://www.comfortforums.com/forum140/5091.html shows the compatibility of the old modules. LEM01-M2 can be used as long as you use Double EOL resistors.RGR05 is not used anymore, DSI01 door sdtation interface is a new plug in module which includes the ringer. We took the opportunity with the product to introduce newer technology which unfortunately makes some old modules obsolete |
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darnold Member
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Thanks for the response. I am getting killed on shipping and import duty from the UK. Is there a distributor that stocks Comfort parts in Portugal or possibly Spain (the ones listed on the website don't appear to do so). Could you clarify what you mean by Double EOL resistors? Are these just required on the 8 inputs on the old LEM01? I could not find a clear explanation of how the EOLs are connected/used with the CM9001 and an older LEM01 module. The CM9001 I received came with both 8 2k2 and 8 4k7 resistors. I currently don't use any resistors and the Zone/Inputs are set to Use Shunts. So what do I need to do specifically to get the old LEM working again? If it is not practical to get the old LEM module working with the new CM9001 then it looks like I could purchase a LEM02B module. I assume I would then not need the EOL resistors if I upgraded the LEM. However, is the LEM02B still made...my UK supplier (Laser) does not list it on their site. And it appears that I will need to purchase a DSI module if I want to use the door stations as before. |
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slychiu Administrator ![]()
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Yes it is much easier to get a new LEM02B as it is a hassle to connect the 2 EOL resistors to each zone if you dont need them . Laser should have it in stock as it is quite commonYou need the DSI01 as well |
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darnold Member
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I have done some testing with the new CM9001 and I continue to have the same issue when I execute the Open Door 1 1 10 action. Given that I have replaced the controller with a brand new CM9001 and replaced the Door Station Module with a brand new DM02 I suspect it is a firmware issue. I have sent you and email which includes a video so you can see what's happening. |
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slychiu Administrator ![]()
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We confirm there is a bug from version 7.210 which caused the problem. A new version shall be released soon |