Wrong checksum. Sent NACK

elvizgz · Post by **elvizgz** » 06 May 2015 13:15

This morning my system wasn't working. In z-way-server.log I only saw:

[2015-05-06 06:30:04.428] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:30:04.428] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:30:04.474] [D] [zway] Job 0x13 (Battery Get): removing duplicate
[2015-05-06 06:30:04.519] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:30:04.520] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:30:04.520] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:30:04.567] [D] [zway] Job 0x13 (Battery Get): removing duplicate
[2015-05-06 06:35:02.530] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.531] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.531] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.574] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.574] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.575] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.618] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.618] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.619] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.672] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.673] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.673] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.717] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.718] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate
[2015-05-06 06:35:02.719] [D] [zway] Job 0x13 (SensorMultilevel V5 Get): removing duplicate

I'm doing data polling each 5 minutes but it wasn't processing. I restart z-way server and it worked again. Looking more into the log file, I saw the problem started with this:

Code: Select all

[2015-05-06 03:32:05.408] [D] [zway] SETDATA devices.11.data.lastReceived = 0 (0x00000000)
[2015-05-06 03:32:05.409] [D] [zway] SETDATA devices.11.instances.0.commandClasses.128.data.lastChange = 1430875925 (0x55496f15)
[2015-05-06 03:32:05.409] [D] [zway] SETDATA devices.11.instances.0.commandClasses.128.data.history = Empty
[2015-05-06 03:32:05.409] [D] [zway] SETDATA devices.11.instances.0.commandClasses.128.data.history.100 = Empty
[2015-05-06 03:32:05.409] [D] [zway] SETDATA devices.11.instances.0.commandClasses.128.data.history.100 = 1430875925 (0x55496f15)
[2015-05-06 03:32:05.409] [D] [zway] SETDATA devices.11.instances.0.commandClasses.128.data.last = 100 (0x00000064)
[2015-05-06 03:32:05.439] [D] [zway] RECEIVED: ( 01 0C 00 04 00 0B 06 31 05 03 0A 00 00 00 )
[2015-05-06 03:32:05.439] [D] [zway] Wrong checksum
[2015-05-06 03:32:05.440] [D] [zway] SENT NAK

I've never seen before the checksum issue in my logs. What was the problem?