request_master_code() Ask ZWave addon to send a ‘MASTER_CODE_GET’ request to ZWave node, master_code_updated event will be sent as a request result. See user code CC capabilities is master code supported (user code V2 only). Call Example Edit zwave.request_master_code() params: node_id (int), channel_id (int) return: none. Edit require "zwave" zwave.request_master_code(node_id, channel_id)