dm_modbus_write_registers Function

public function dm_modbus_write_registers(modbus, address, registers, n) result(rc)

Writes many registers to address. The size of argument registers determines the number of registers to write, unless optional argument n is passed. The function uses the Modbus function code 0x10 (preset multiple registers).

The function returns the following error codes:

• E_INVALID if argument registers is invalid.
• E_MODBUS if writing 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 write to.
integer(kind=u2),	intent(inout)			::	registers(:)	Register values (unsigned).
integer,	intent(inout),	optional		::	n	Number of registers to write on input, number of registers written on output.

Return Value integer