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- ===================================
- Migration notes from the 1.2 series
- ===================================
- Init
- ====
- modbus_init_tcp requires a third new argument, the port number.
- modbus_init_tcp(modbus_param_t *mb_param, char *ip_address, int port)
- Set the port to MODBUS_TCP_DEFAULT_PORT to use the default one
- (502). It's convenient to use a port number greater than or equal to
- 1024 because it's not necessary to be root to use this port number.
- Pointers of data
- ================
- The coil and input status are now stored in an array of type uint8_t
- (in 1.2.X series, array of type int was used). So now, you need to
- pass a pointer of type uint8_t to use read_coil_status(), for example.
- The holding and input registers are now stored in an array of type
- uint16_t.
- These changes reduce the memory consumption.
- New functions
- =============
- report_slave_id
- modbus_set_error_handling
- modbus_mapping_new
- modbus_mapping_free
- modbus_init_listen_tcp
- modbus_listen
- modbus_manage_query
- get_slave_query_tcp
- set_bits_from_byte
- set_bits_from_bytes
- get_byte_from_bits
- Read modbus.h for more informations.
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