dm_modbus_get_serial_mode Function

public function dm_modbus_get_serial_mode(modbus, mode) result(rc)

Gets the current Modbus RTU serial mode (RS-232 or RS-485).

The function returns the following error codes:

• E_INVALID if the Modbus mode is not RTU.
• E_MODBUS if getting the serial mode failed.
• E_NULL if the Modbus context is not associated.

Arguments

Type	Intent	Optional	Attributes		Name
type(modbus_type),	intent(inout)			::	modbus	Modbus type.
integer,	intent(out)			::	mode	Modbus RTU mode (MODBUS_RTU_RS232, MODBUS_RTU_RS485).

Return Value integer