Looking through the logs it does not look to me as if a specific command triggers the disconnect.
Sample1:
01:35:38.426 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 7F, payload = FE FD F7 FB 5F
01:35:38.429 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: NewStatesEvent: changed = [01,02,03,04,05,06,07,08,0A,0B,0C,0D,0E,0F,10,11,12,14,15,16,17,18,19,1B,1C,1D,1E,1F,20,21,22,23,24,26]
01:35:39.379 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 7F, payload =
01:35:39.431 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 7F, payload = FE FD F7 FB 5F
01:35:39.434 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: NewStatesEvent: changed = [01,02,03,04,05,06,07,08,0A,0B,0C,0D,0E,0F,10,11,12,14,15,16,17,18,19,1B,1C,1D,1E,1F,20,21,22,23,24,26]
01:35:40.379 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:partition:home:alarm_partition_fire_detectors_alarm' changed from ONLINE to UNINITIALIZED
01:35:40.380 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 7F, payload =
01:35:40.397 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:partition:home:alarm_partition_fire_detectors_alarm' changed from UNINITIALIZED to UNINITIALIZED (HANDLER_MISSING_ERROR)
01:35:40.418 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 7F, payload = FE FD F7 FB 5F
01:35:40.420 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: NewStatesEvent: changed = [01,02,03,04,05,06,07,08,0A,0B,0C,0D,0E,0F,10,11,12,14,15,16,17,18,19,1B,1C,1D,1E,1F,20,21,22,23,24,26]
01:35:40.661 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:system:home:System' changed from ONLINE to UNINITIALIZED
01:35:40.676 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:system:home:System' changed from UNINITIALIZED to UNINITIALIZED (HANDLER_MISSING_ERROR)
01:35:40.763 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:event-log:home:EventLog' changed from ONLINE to UNINITIALIZED
01:35:40.783 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:event-log:home:EventLog' changed from UNINITIALIZED to UNINITIALIZED (HANDLER_MISSING_ERROR)
01:35:40.850 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:ethm-1:home' changed from ONLINE to UNINITIALIZED
01:35:40.862 [INFO ] [.satel.internal.protocol.Ethm1Module] - Closing connection to ETHM-1 module
01:35:40.863 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: org.openhab.binding.satel.internal.event.ConnectionStatusEvent: connected = false, reason = null
01:35:40.865 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:ethm-1:home' changed from UNINITIALIZED to OFFLINE (COMMUNICATION_ERROR)
01:35:40.867 [DEBUG] [.satel.internal.protocol.SatelModule] - Communication thread stopped
01:35:40.890 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:ethm-1:home' changed from OFFLINE (COMMUNICATION_ERROR) to UNINITIALIZED (HANDLER_MISSING_ERROR)
01:35:42.011 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:ethm-1:home' changed from UNINITIALIZED (HANDLER_MISSING_ERROR) to INITIALIZING
01:35:42.087 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:system:home:System' changed from UNINITIALIZED (HANDLER_MISSING_ERROR) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
01:35:42.088 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:event-log:home:EventLog' changed from UNINITIALIZED (HANDLER_MISSING_ERROR) to UNINITIALIZED (BRIDGE_UNINITIALIZED)
01:35:42.095 [DEBUG] [.satel.internal.protocol.SatelModule] - Communication thread started
01:35:42.112 [INFO ] [.satel.internal.protocol.Ethm1Module] - Connecting to ETHM-1 module at satel.lan:7094
01:35:42.125 [INFO ] [.satel.internal.protocol.Ethm1Module] - ETHM-1 module connected successfully
01:35:42.129 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 7E, payload =
01:35:42.179 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 7E, payload = 42 31 31 39 32 30 31 39 31 31 32 38 01 FF
01:35:42.181 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: org.openhab.binding.satel.internal.event.ConnectionStatusEvent: connected = true, reason = null
01:35:42.186 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:ethm-1:home' changed from INITIALIZING to ONLINE
01:35:42.206 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: IntegraVersionEvent: type = 66, version = 1.19 2019-11-28, language = 1, settingsInFlash = true
01:35:42.208 [INFO ] [.satel.internal.protocol.SatelModule] - Connection to Integra 64 Plus initialized. INTEGRA version: 1.19 2019-11-28.
01:35:42.210 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 7F, payload =
01:35:42.258 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 7F, payload = FF FF FF FF FF
01:35:42.267 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: NewStatesEvent: changed = [00,01,02,03,04,05,06,07,08,09,0A,0B,0C,0D,0E,0F,10,11,12,13,14,15,16,17,18,19,1A,1B,1C,1D,1E,1F,20,21,22,23,24,25,26,27]
01:35:42.288 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:partition:home:alarm_partition_fire_detectors_alarm' changed from UNINITIALIZED (BRIDGE_UNINITIALIZED) to INITIALIZING
01:35:42.299 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:system:home:System' changed from UNINITIALIZED (BRIDGE_UNINITIALIZED) to INITIALIZING
01:35:42.316 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:event-log:home:EventLog' changed from UNINITIALIZED (BRIDGE_UNINITIALIZED) to INITIALIZING
01:35:42.323 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:partition:home:alarm_partition_fire_detectors_alarm' changed from INITIALIZING to ONLINE
01:35:42.326 [DEBUG] [ernal.handler.SatelStateThingHandler] - New command for satel:partition:home:alarm_partition_fire_detectors_alarm:alarm: REFRESH
01:35:43.073 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 7F, payload =
01:35:43.123 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 7F, payload = FF FF FF FF FF
01:35:43.125 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: NewStatesEvent: changed = [00,01,02,03,04,05,06,07,08,09,0A,0B,0C,0D,0E,0F,10,11,12,13,14,15,16,17,18,19,1A,1B,1C,1D,1E,1F,20,21,22,23,24,25,26,27]
01:35:43.136 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 09, payload =
01:35:43.137 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 13, payload =
01:35:43.139 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 09, payload =
01:35:43.140 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 13, payload =
01:35:43.142 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 09, payload =
01:35:43.143 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 13, payload =
01:35:43.145 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 09, payload =
01:35:43.146 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 13, payload =
01:35:43.149 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 13, payload =
01:35:43.150 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 09, payload =
01:35:43.151 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 13, payload =
01:35:43.160 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.162 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.165 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.166 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.168 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.169 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.171 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.172 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.173 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.175 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.176 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.178 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.179 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.181 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.182 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.184 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.185 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.187 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.188 [DEBUG] [.satel.internal.protocol.SatelModule] - Command already in the queue: Message: command = 00, payload =
01:35:43.190 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 09, payload =
01:35:43.223 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 09, payload = 00 00 00 00
01:35:43.225 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: IntegraStateEvent: command = 09, extended = false, active = {}
01:35:43.238 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 13, payload =
01:35:43.284 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 13, payload = 00 00 00 00
01:35:43.285 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: IntegraStateEvent: command = 13, extended = false, active = {}
01:35:43.293 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 27, payload =
01:35:43.344 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 27, payload = 00 00 00 00
01:35:43.345 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: IntegraStateEvent: command = 27, extended = false, active = {}
01:35:43.348 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 25, payload =
01:35:43.384 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 25, payload = 00 00 00 00
01:35:43.385 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: IntegraStateEvent: command = 25, extended = false, active = {}
01:35:43.388 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 1A, payload =
01:35:43.425 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 1A, payload = 20 20 05 13 01 35 43 42 22
01:35:43.427 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: IntegraStatusEvent: type = 2, time = Optional[2020-05-13T01:35:43], service mode = false, troubles = true, troubles memory = true, ACU-100 = false, INT-RX = false, grade 2/3 = false
01:35:43.434 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 00, payload =
01:35:43.486 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 00, payload = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
01:35:43.487 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: IntegraStateEvent: command = 00, extended = false, active = {}
01:35:44.074 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 7F, payload =
01:35:44.109 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 7F, payload = FE FD F7 FB 5F
01:35:44.112 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: NewStatesEvent: changed = [01,02,03,04,05,06,07,08,0A,0B,0C,0D,0E,0F,10,11,12,14,15,16,17,18,19,1B,1C,1D,1E,1F,20,21,22,23,24,26]
01:35:45.074 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 7F, payload =
01:35:45.114 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 7F, payload = FE FD F7 FB 5F
01:35:45.117 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: NewStatesEvent: changed = [01,02,03,04,05,06,07,08,0A,0B,0C,0D,0E,0F,10,11,12,14,15,16,17,18,19,1B,1C,1D,1E,1F,20,21,22,23,24,26]
01:35:46.074 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 7F, payload =
Sample2:
01:29:37.044 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 7F, payload =
01:29:37.110 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 7F, payload = FE FD F7 FB 5F
01:29:37.111 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: NewStatesEvent: changed = [01,02,03,04,05,06,07,08,0A,0B,0C,0D,0E,0F,10,11,12,14,15,16,17,18,19,1B,1C,1D,1E,1F,20,21,22,23,24,26]
01:29:38.045 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 7F, payload =
01:29:38.081 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 7F, payload = FE FD F7 FB 5F
01:29:38.082 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: NewStatesEvent: changed = [01,02,03,04,05,06,07,08,0A,0B,0C,0D,0E,0F,10,11,12,14,15,16,17,18,19,1B,1C,1D,1E,1F,20,21,22,23,24,26]
....
01:29:38.815 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:system:home:System' changed from ONLINE to UNINITIALIZED
01:29:38.831 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:system:home:System' changed from UNINITIALIZED to UNINITIALIZED (HANDLER_MISSING_ERROR)
01:29:38.832 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:event-log:home:EventLog' changed from ONLINE to UNINITIALIZED
01:29:38.855 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:event-log:home:EventLog' changed from UNINITIALIZED to UNINITIALIZED (HANDLER_MISSING_ERROR)
01:29:39.045 [DEBUG] [.satel.internal.protocol.SatelModule] - Sending message: Message: command = 7F, payload =
01:29:39.086 [DEBUG] [.satel.internal.protocol.SatelModule] - Got response: Message: command = 7F, payload = FE FD F7 FB 5F
01:29:39.088 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: NewStatesEvent: changed = [01,02,03,04,05,06,07,08,0A,0B,0C,0D,0E,0F,10,11,12,14,15,16,17,18,19,1B,1C,1D,1E,1F,20,21,22,23,24,26]
01:29:39.129 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:ethm-1:home' changed from ONLINE to UNINITIALIZED
01:29:39.140 [INFO ] [.satel.internal.protocol.Ethm1Module] - Closing connection to ETHM-1 module
01:29:39.142 [DEBUG] [satel.internal.event.EventDispatcher] - Distributing event: org.openhab.binding.satel.internal.event.ConnectionStatusEvent: connected = false, reason = null
01:29:39.144 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:ethm-1:home' changed from UNINITIALIZED to OFFLINE (COMMUNICATION_ERROR)
01:29:39.144 [DEBUG] [.satel.internal.protocol.SatelModule] - Communication thread stopped
01:29:39.166 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:ethm-1:home' changed from OFFLINE (COMMUNICATION_ERROR) to UNINITIALIZED (HANDLER_MISSING_ERROR)
01:29:40.339 [INFO ] [me.event.ThingStatusInfoChangedEvent] - 'satel:ethm-1:home' changed from UNINITIALIZED (HANDLER_MISSING_ERROR) to INITIALIZING
01:29:40.393 [DEBUG] [.satel.internal.protocol.SatelModule] - Communication thread started
From what I can see, it keeps polling and gets replies…then suddenly everything goes into uninitilized state… reconnects and is fine again until next “problem”.
Hope the samples help