dm_modbus_read_uint16 Function

public function dm_modbus_read_uint16(modbus, address, value) result(rc)

Reads 2-byte unsigned integer from input or holding register, depending on the address, and returns result in value. Stores the 2-byte unsigned value in a 4-byte signed integer.

The function returns the following error codes:

  • E_BOUNDS if argument n is larger than size of data.
  • E_INVALID if argument address or data is invalid.
  • E_MODBUS if reading the registers failed.
  • E_NULL if the Modbus context is not associated.

Arguments

Type IntentOptional Attributes Name
class(modbus_type), intent(inout) :: modbus

Modbus RTU/TCP type.
integer, intent(in) :: address

Address to read from.
integer(kind=i4), intent(out) :: value

Value read from register.

Return Value integer


Calls

proc~~dm_modbus_read_uint16~~CallsGraph proc~dm_modbus_read_uint16 dm_modbus_read_uint16 interface~dm_to_signed dm_to_signed proc~dm_modbus_read_uint16->interface~dm_to_signed proc~dm_is_error dm_is_error proc~dm_modbus_read_uint16->proc~dm_is_error proc~dm_modbus_read_int16 dm_modbus_read_int16 proc~dm_modbus_read_uint16->proc~dm_modbus_read_int16 proc~dm_uint16_to_int32 dm_uint16_to_int32 interface~dm_to_signed->proc~dm_uint16_to_int32 proc~dm_uint32_to_int64 dm_uint32_to_int64 interface~dm_to_signed->proc~dm_uint32_to_int64 proc~dm_modbus_read_int16->proc~dm_is_error proc~dm_modbus_read_input_registers dm_modbus_read_input_registers proc~dm_modbus_read_int16->proc~dm_modbus_read_input_registers proc~dm_modbus_read_registers dm_modbus_read_registers proc~dm_modbus_read_int16->proc~dm_modbus_read_registers modbus_read_input_registers modbus_read_input_registers proc~dm_modbus_read_input_registers->modbus_read_input_registers modbus_read_registers modbus_read_registers proc~dm_modbus_read_registers->modbus_read_registers