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The sequence diagram below shows how an user User can add a single device with install code to the network. This can be repeated for additional devices, adding one at a time.
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The below sequence diagram shows how user User can try to commission a device again after the device failed to join the first time. The install code is stored by Module so user User does not need to re-enter it when open opening the permit join window again.
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The sequence diagram below shows how an user a User can commission multiple devices simultaneously. The Module, depending on the hardware, dictates the max number of devices that can be commissioned simultaneously. Host can query this max with the serial frames Trust Center Install Code Max Count Request and Response. For Modules based on the EM357, the max is 3.
To add a list of devices that are is larger than the max allowed, the user User shall add the devices in multiple rounds. For example, to add 5 devices while max allowed is 3, then user User should add 3 in the first round of permit join, then 2 in the second round.
It is recommended for Host to query for the max during startup synchronization phase. Host can use the max to configure the user interface.
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Note: the diagram shows the serial communication when Serial Acknowledgement is enabled. If Serial Acknowledgement is disabled, Module would not send Status Responses of Success.
Error When Adding More Devices Than Max
The sequence diagram below shows that when an user User adds devices that exceed the max, Module returns an error. User should wait until having completed the commissioning of already-added devices before adding new ones. Alternatively, user User can send Clear Trust Center Install Codes and add new ones.
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