esphome: name: uart-mock-modbus-mesh host: api: logger: level: VERBOSE external_components: - source: type: local path: EXTERNAL_COMPONENT_PATH # Dummy uart entry to satisfy modbus's DEPENDENCIES = ["uart"] # The actual UART bus used is the uart_mock component below uart: baud_rate: 115200 port: /dev/null # Shared 3-bus mesh (see the shared_yaml markers): addr 1 = typed read-only # registers, addr 5 = the read/write 0x17 target, addr 2/3 on the second # server hub. auto_start everywhere: the controller polls at boot, so the # forwarding must already be live or early requests generate warnings. # Every test presses Start Scenario, so all merged actions fire in every test. uart_mock: - id: virtual_uart_server baud_rate: 9600 auto_start: true debug: on_tx: - then: - uart_mock.inject_rx: id: virtual_uart_controller data: !lambda return data; - uart_mock.inject_rx: id: virtual_uart_server_2 data: !lambda return data; - id: virtual_uart_server_2 baud_rate: 9600 auto_start: true debug: on_tx: - then: - uart_mock.inject_rx: id: virtual_uart_server data: !lambda return data; - uart_mock.inject_rx: id: virtual_uart_controller data: !lambda return data; - id: virtual_uart_controller baud_rate: 9600 auto_start: true debug: on_tx: - then: - uart_mock.inject_rx: id: virtual_uart_server data: !lambda return data; - uart_mock.inject_rx: id: virtual_uart_server_2 data: !lambda return data; globals: - id: stored_1 type: uint16_t initial_value: "0" modbus: - uart_id: virtual_uart_server id: virtual_modbus_server role: server - uart_id: virtual_uart_server_2 id: virtual_modbus_server_2 role: server - uart_id: virtual_uart_controller id: virtual_modbus_client role: client turnaround_time: 10ms modbus_controller: - address: 1 modbus_id: virtual_modbus_client id: modbus_controller_1 update_interval: 1s - address: 2 modbus_id: virtual_modbus_client id: modbus_controller_2 update_interval: 1s - address: 3 modbus_id: virtual_modbus_client id: modbus_controller_3 update_interval: 1s modbus_server: - address: 1 modbus_id: virtual_modbus_server registers: - address: 0x01 value_type: U_WORD read_lambda: return 99; - address: 0x02 value_type: U_WORD_S read_lambda: return 4660; - address: 0x03 value_type: S_WORD read_lambda: return -99; - address: 0x04 value_type: S_WORD_S read_lambda: return -2; - address: 0x05 value_type: U_DWORD read_lambda: return 16909060; - address: 0x08 value_type: S_DWORD read_lambda: return -16909060; - address: 0x0B value_type: U_DWORD_R read_lambda: return 67305985; - address: 0x0E value_type: S_DWORD_R read_lambda: return -67305985; - address: 0x11 value_type: U_QWORD read_lambda: return 72623859790382856; - address: 0x16 value_type: S_QWORD read_lambda: return -72623859790382856; - address: 0x1B value_type: U_QWORD_R read_lambda: return 578437695752307201; - address: 0x20 value_type: S_QWORD_R read_lambda: return -578437695752307201; - address: 0x25 value_type: FP32 read_lambda: return 3.14; - address: 0x28 value_type: FP32_R read_lambda: return 3.14; - address: 5 modbus_id: virtual_modbus_server registers: # Writable + readable register: srv_write_1 plus the client's read-back # confirm the write half of the 0x17 ran before the read half (Modbus 6.17). - address: 0x01 value_type: U_WORD read_lambda: return id(stored_1); write_lambda: |- id(stored_1) = x; id(srv_write_1).publish_state(x); return true; # Read-only register, returned together with 0x01 by the 2-register read half. - address: 0x02 value_type: U_WORD read_lambda: return 0x00AA; - address: 2 modbus_id: virtual_modbus_server_2 registers: - address: 0x01 value_type: U_WORD read_lambda: return 919; - address: 3 modbus_id: virtual_modbus_server_2 registers: - address: 0x01 value_type: U_WORD read_lambda: return 929; sensor: - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_u_word" address: 0x01 register_type: holding value_type: U_WORD - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_u_word_s" address: 0x02 register_type: holding value_type: U_WORD_S - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_u_word_s_raw" address: 0x02 register_type: holding value_type: U_WORD - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_s_word" address: 0x03 register_type: holding value_type: S_WORD - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_s_word_s" address: 0x04 register_type: holding value_type: S_WORD_S - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_u_dword" address: 0x05 register_type: holding value_type: U_DWORD - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_s_dword" address: 0x08 register_type: holding value_type: S_DWORD - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_u_dword_r" address: 0x0B register_type: holding value_type: U_DWORD_R - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_s_dword_r" address: 0x0E register_type: holding value_type: S_DWORD_R - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_u_qword" address: 0x11 register_type: holding value_type: U_QWORD - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_s_qword" address: 0x16 register_type: holding value_type: S_QWORD - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_u_qword_r" address: 0x1B register_type: holding value_type: U_QWORD_R - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_s_qword_r" address: 0x20 register_type: holding value_type: S_QWORD_R - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_fp32" address: 0x25 register_type: holding value_type: FP32 - platform: modbus_controller modbus_controller_id: modbus_controller_1 name: "reg_fp32_r" address: 0x28 register_type: holding value_type: FP32_R - platform: modbus_controller modbus_controller_id: modbus_controller_2 name: "multi_reg_a" address: 0x01 register_type: holding value_type: U_WORD - platform: modbus_controller modbus_controller_id: modbus_controller_3 name: "multi_reg_b" address: 0x01 register_type: holding value_type: U_WORD # client_read_write observations, server- and client-side. - platform: template name: "srv_write_1" id: srv_write_1 - platform: template name: "client_read_0" id: client_read_0 - platform: template name: "client_read_1" id: client_read_1 button: - platform: template name: "Start Scenario" id: start_scenario_btn on_press: # FC 0x17: write reg 0x0001 = 0x1234, then read regs 0x0001..0x0002 back in the same transaction. - modbus_client.read_write_multiple_registers: address: 5 read_address: 0x0001 read_count: 2 write_address: 0x0001 values: [0x1234] on_response: then: - lambda: |- // values is the read-back block: reg 0x0001 (must be the just-written 0x1234) and reg 0x0002. if (values.size() >= 2) { id(client_read_0).publish_state(values[0]); id(client_read_1).publish_state(values[1]); }