dm_modbus_read_float Function

public function dm_modbus_read_float(modbus, address, value, order) result(rc)

Reads 4-byte real from input or holding register, depending on the address, and returns result in value.

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	Intent	Optional	Attributes		Name
class(modbus_type),	intent(inout)			::	modbus	Modbus RTU/TCP type.
integer,	intent(in)			::	address	Address to read from.
real(kind=4),	intent(out)			::	value	Value read from register.
integer,	intent(in)			::	order	Byte order.

Return Value integer