SM_Close SM_ConfigureSerialConnection SM_ConfigureSerialTimeouts SM_CustomMessage SM_GetAnalogConfig SM_GetAnalogInputConfig SM_GetAnalogInputRanges SM_GetAnalogOutputRanges SM_GetDeviceConfig SM_GetFirmwareVersion SM_GetLastError SM_GetLastFTDIError SM_GetLastWin32Error SM_GetPIODirection SM_GetPIOPresets SM_GlobalCommsReset SM_NotifyInputState SM_NotifyOnInputChange SM_Open SM_OpenSecure SM_ReadAnalogInputs SM_ReadAnalogOutputs SM_ReadDigitalInputs SM_ReadDigitalOutputs SM_ReadPIO SM_SelectDevice SM_SetAnalogConfig SM_SetAnalogInputConfig SM_SetAnalogInputRanges SM_SetCommunications SM_SetPIODirection SM_SetPIOPresets SM_SetPolarity SM_SetSoftwareAddress SM_Version SM_WriteAnalogOutputs SM_WriteDigitalOutputs SM_WritePIO

int __stdcall SM_SetPIODirection ( SM_HANDLE  handle, unsigned char *  config  ) Configures a Sealevel I/O module's programmable IO direction. Parameters [in] handle Valid handle returned by SM_Open(). [in] config Contains the direction (input or output) of the programmable IO. Return values >=0 Successful completion. -1 Invalid SeaMAX handle. -2 Connection is not established. Check the provided Connection object state. -3 Read error waiting for response. Unknown Modbus exception. -4 Illegal Modbus Function (Modbus Exception 0x01). -5 Illegal Data Address (Modbus Exception 0x02). -6 Illegal Data Value (Modbus Exception 0x03). -7 Modbus CRC was invalid. Possible communications problem. -10 SeaDAC Lite: Invalid model number. -11 SeaDAC Lite: Unknown connection type. -12 SeaDAC Lite: Error communicating with device. This method provides a simpler, easier way to interface to the programmable IO Sealevel I/O modules. The SeaI/O 462 and 463 modules offer 96 bits of programmable IO in 12 banks, each of which may be configured as a bank of 8 inputs or 8 outputs. The most basic way of configuring the programmable IO module is by subsequent reads and writes to its holding register map. This method masks many of those reads and writes and provides one simple interface to set IO direction. The format of the config parameter should be one byte for every 8 bits of programmable I/O, each byte representing banks 1 - 12. A non-zero byte indicates that the corresponding bank of PIO should be a bank of 8 inputs, zero indicating 8 outputs. For example, a non-zero value in config[3] would indicate that bank 4 should be a bank of inputs. Warning When changing the direction of any PIO bank from input to output, or vice versa, it is worth mentioning that all banks set as output will reset to their previously saved, default preset state (if applicable - see SM_SetPIOPresets()). For devices that do not support presets, their output banks will reset to an inactive state. The parameter config must have 12 bytes allocated before calling this method, even if the module has fewer than 96 bits of PIO. Referenced by CSeaMaxW32::Ioctl().