FAQ
Q: The configuration is not saved in DALI devices after sending it using the "iSMA_DALI" kit. Why?
The "iSMA_DALI" kit does not have command queuing and sending status information. Therefore, if another command is running during the transmission (e.g. saving parameters in another DALI device), the previous one will be interrupted and never completed. The DALI protocol works very slowly, and the available configuration parameters in the device are numerous. It can be assumed that the average time of writing all parameters to a single device takes about 15 seconds. Therefore, remember to keep time intervals between executing subsequent "WriteDevice" actions, otherwise random devices on the bus will not be configured.
Q: When controlling groups of DALI luminaires using the "iSMA_DALI" kit, some devices do not react at all or do not react with the group configured in the "DALIDevice" component. Why is this happening?
The DALI device component slot values represent the program memory of iSMA-B-AAC20 controller, not the actual value in the DALI luminaire. If the device does not respond as it should, according to the component configuration, perform the "WriteDevice" action, but remember that the entire configuration of a single device lasts for about 15 seconds - any action (on any DALI device on the bus) in the meantime will interrupt sending this configuration.
Q: How does the "Inter Message Delay" parameter in the Device component of the ModbusAsync driver affect the network bandwidth?
Communication is forced to delay the minimum time, according to the "Inter Message Delay" slot value, between the last response received and the sending of the next request. "Inter Message Delay" forces the bus to be completely silent, it does not queue for a later query and does not poll other devices in the meantime.
Q: What to do if the license status is "Unlicensed" and a license pop-up appears?
If the user has Internet access, click "Upload license from remote database".
Q: What is the maximum amount of kits that can be installed in iSMA-B-AAC20 controller?
It all depends on the size of the kit, the most important thing is that, after selecting the kits, the total size does not exceed 260,000 Bytes, because after exceeding this value you will not be able to connect to iSMA-B-AAC20, or other, unpredictable behavior of the controller may occur. It is recommended to backup the application before uploading the next kit, while you are near the border of 260 000 Bytes.
Q: Can the location of iSMA Tool folder affect its operation?
ISMA Tool cannot be placed under "C: \ Users \ .... \ iSMATool" - this is because "c: \ Users \ xxxxx" spaces are treated differently by Windows when it comes to writing access.
It is recommended to put iSMA Tool directly on the disk, eg "C: \ iSMATool".
Q: Can iSMA-B-AAC20 collect historical data and alarm information?
iSMA-B-AAC20 can collect information such as historical data and alarms. This data will be saved on the controller's SD card, which is not included in the set. The card must be formatted in the FAT32 system, the controller supports cards with a capacity of up to 4 GB (The card may have a larger capacity, but the driver will only support 4 GB).
Q: What options does iSMA Tool provide for reading alerts and reports?
For historical data, the modes COV (value change), Interval (cyclical recording) and COV_Interval (value change and cyclic recording) can be selected. In the alarm extension, you can choose "ChangeOfValue" for a logical value, "OutOfRange" for a numerical value.
Q: iSMA-B-AAC20 shows CPU usage at 100%. What is this caused by?
First, use iSMA Tool to connect to the device, then in the "App" component go to the "Object Properties" view and change the "Scan Period" slot value so that it is greater than the "Scan Time" slot value ( the recommended minimum difference between these values is 50 ms). Then go to the "Object Properties" view in "service/sox" and increase the value of the "Event Per Sec" slot.
Q: Is it possible in iSMA-B-AAC20 to change the "facets" of the BACnet "BinaryValue" type object, eg true/false to ON/OFF?
Unfortunately, in iSMA-B-AAC20 device, it is not possible to change "facets" in BACnet objects.
Q: Are there any limitations on the number of devices that iSMA-B-AAC20 polls over IP?
The devices communicate with the iSMA-B-AAC20 via the UDP protocol, so there are no limitations in their number. The only limitations are the number of points, the number of addresses available for devices on the bus and the transmission speed.
Q: After installing additional kits for iSMA-B-AAC20 controller, I cannot connect to it. How to restore communication with the controller?
Backup the application using the WEB page built into the controller. Then, using the SedonaUpdater program, clear the "flash" memory and go through the firmware and default application installation procedure. This happens when the memory reserved for kits is exceeded.
Q: After connecting 24V the device does not start. What to do?
Set up a new case in Customer Service Desk and provide:
device serial number,
the period in which the device worked,
connection diagram.
Q: What functions does AAC20 support when working as Modbus TCP slave?
When AAC20 is serving points as Modbus TCP slave it has following functions: 1 (read coils), 2 (read discrete inputs), 3 (read holding registers), 4 (read input registers), 5 (write single coil), 6 (write single register), 15 (write multiple coils), 16 (write multiple registers) and 23 (read write multiple registers).