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44 lines
1.4 KiB
44 lines
1.4 KiB
/*
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* Generic MODBUS Library for STM32: Protocol Constants
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*
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* (c) 2019--2022 Martin Mareš <mj@ucw.cz>
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*/
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enum modbus_function {
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MODBUS_FUNC_READ_COILS = 0x01,
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MODBUS_FUNC_READ_DISCRETE_INPUTS = 0x02,
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MODBUS_FUNC_READ_HOLDING_REGISTERS = 0x03,
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MODBUS_FUNC_READ_INPUT_REGISTERS = 0x04,
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MODBUS_FUNC_WRITE_SINGLE_COIL = 0x05,
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MODBUS_FUNC_WRITE_SINGLE_REGISTER = 0x06,
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MODBUS_FUNC_READ_EXCEPTION_STATUS = 0x07,
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MODBUS_FUNC_DIAGNOSTICS = 0x08,
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MODBUS_FUNC_GET_COMM_EVENT_COUNTER = 0x0b,
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MODBUS_FUNC_GET_COMM_EVENT_LOG = 0x0c,
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MODBUS_FUNC_WRITE_MULTIPLE_COILS = 0x0f,
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MODBUS_FUNC_WRITE_MULTIPLE_REGISTERS = 0x10,
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MODBUS_FUNC_REPORT_SLAVE_ID = 0x11,
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MODBUS_FUNC_READ_FILE_RECORD = 0x14,
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MODBUS_FUNC_WRITE_FILE_RECORD = 0x15,
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MODBUS_FUNC_MASK_WRITE_REGISTER = 0x16,
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MODBUS_FUNC_READ_WRITE_MULTIPLE_REGISTERS = 0x17,
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MODBUS_FUNC_READ_FIFO_QUEUE = 0x18,
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MODBUS_FUNC_ENCAPSULATED_INTERFACE_TRANSPORT = 0x2b,
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};
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enum modbus_error {
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MODBUS_ERR_ILLEGAL_FUNCTION = 0x01,
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MODBUS_ERR_ILLEGAL_DATA_ADDRESS = 0x02,
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MODBUS_ERR_ILLEGAL_DATA_VALUE = 0x03,
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MODBUS_ERR_SLAVE_DEVICE_FAILURE = 0x04,
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MODBUS_ERR_ACKNOWLEDGE = 0x05,
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MODBUS_ERR_SLAVE_DEVICE_BUSY = 0x06,
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MODBUS_ERR_MEMORY_PARITY_ERROR = 0x08,
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MODBUS_ERR_GATEWAY_PATH_UNAVAILABLE = 0x0a,
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MODBUS_ERR_GATEWAY_TARGET_DEVICE_FAILED = 0x0b,
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};
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enum modbus_encapsulated_interface_transport_type {
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MODBUS_EIT_CANOPEN = 0x0d,
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MODBUS_EIT_READ_DEVICE_IDENT = 0x0e,
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};
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