UD Library Errorcodes

All functions return an LJ_ERROR error code as listed in the following tables.

Table 4.4-1. Request Level Error Codes

Errorcode	Name	Description
-2	LJE_UNABLE_TO_READ_CALDATA	Warning: Defaults used instead.
-1	LJE_DEVICE_NOT_CALIBRATED	Warning: Defaults used instead.
0	LJE_NOERROR
1	LJE_COMMAND_LIST_ERROR	Error detected in eAddGoGet. Check the updated parameters aRequestErrors, GoError, and aResultErrors for specific errors.
2	LJE_INVALID_CHANNEL_NUMBER	Channel that does not exist (e.g. DAC2), or data from stream is requested on a channel that is not in the scan list.
3	LJE_INVALID_RAW_INOUT_PARAMETER
4	LJE_UNABLE_TO_START_STREAM
5	LJE_UNABLE_TO_STOP_STREAM
6	LJE_NOTHING_TO_STREAM
7	LJE_UNABLE_TO_CONFIG_STREAM
8	LJE_BUFFER_OVERRUN	Overrun of the UD stream buffer.
9	LJE_STREAM_NOT_RUNNING
10	LJE_INVALID_PARAMETER
11	LJE_INVALID_STREAM_FREQUENCY
12	LJE_INVALID_AIN_RANGE
13	LJE_STREAM_CHECKSUM_ERROR
14	LJE_STREAM_COMMAND_ERROR
15	LJE_STREAM_ORDER_ERROR	Stream packet received out of sequence.
16	LJE_AD_PIN_CONFIGURATION_ERROR	Analog request on a digital pin, or vice versa.
17	LJE_REQUEST_NOT_PROCESSED	Previous request had an error.
19	LJE_SCRATCH_ERROR
20	LJE_DATA_BUFFER_OVERFLOW
21	LJE_ADC0_BUFFER_OVERFLOW
22	LJE_FUNCTION_INVALID
23	LJE_SWDT_TIME_INVALID
24	LJE_FLASH_ERROR
25	LJE_STREAM_IS_ACTIVE
26	LJE_STREAM_TABLE_INVALID
27	LJE_STREAM_CONFIG_INVALID
28	LJE_STREAM_BAD_TRIGGER_SOURCE
30	LJE_STREAM_INVALID_TRIGGER
31	LJE_STREAM_ADC0_BUFFER_OVERFLOW
33	LJE_STREAM_SAMPLE_NUM_INVALID
34	LJE_STREAM_BIPOLAR_GAIN_INVALID
35	LJE_STREAM_SCAN_RATE_INVALID
36	LJE_TIMER_INVALID_MODE
37	LJE_TIMER_QUADRATURE_AB_ERROR
38	LJE_TIMER_QUAD_PULSE_SEQUENCE
39	LJE_TIMER_BAD_CLOCK_SOURCE
40	LJE_TIMER_STREAM_ACTIVE
41	LJE_TIMER_PWMSTOP_MODULE_ERROR
42	LJE_TIMER_SEQUENCE_ERROR
43	LJE_TIMER_SHARING_ERROR
44	LJE_TIMER_LINE_SEQUENCE_ERROR
45	LJE_EXT_OSC_NOT_STABLE
46	LJE_INVALID_POWER_SETTING
47	LJE_PLL_NOT_LOCKED
48	LJE_INVALID_PIN
49	LJE_IOTYPE_SYNCH_ERROR
50	LJE_INVALID_OFFSET
51	LJE_FEEDBACK_IOTYPE_NOT_VALID
52	LJE_SHT_CRC
53	LJE_SHT_MEASREADY
54	LJE_SHT_ACK
55	LJE_SHT_SERIAL_RESET
56	LJE_SHT_COMMUNICATION
57	LJE_AIN_WHILE_STREAMING	AIN not available to command-response functions while the UE9 is stream.
58	LJE_STREAM_TIMEOUT
59	LJE_STREAM_CONTROL_BUFFER_OVERFLOW
60	LJE_STREAM_SCAN_OVERLAP	New scan started before the previous scan completed. Scan rate is too high.
61	LJE_FIRMWARE_VERSION_IOTYPE	IOType not supported with this firmware.
62	LJE_FIRMWARE_VERSION_CHANNEL	Channel not supported with this firmware.
63	LJE_FIRMWARE_VERSION_VALUE	Value not supported with this firmware.
64	LJE_HARDWARE_VERSION_IOTYPE	IOType not supported with this hardware.
65	LJE_HARDWARE_VERSION_CHANNEL	Channel not supported with this hardware.
66	LJE_HARDWARE_VERSION_VALUE	Value not supported with this hardware.
67	LJE_CANT_CONFIGURE_PIN_FOR_ANALOG
68	LJE_CANT_CONFIGURE_PIN_FOR_DIGITAL
69	LJE_LJTDAC_ACK_ERROR
70	LJE_TC_PIN_OFFSET_MUST_BE_4_TO_8
71	LJE_INVALID_DIFFERENTIAL_CHANNEL
72	LJE_DSP_SIGNAL_OUT_OF_RANGE
73	LJE_STREAM_INVALID_CONNECTION

112	UART_TIMEOUT
113	UART_NOTCONNECTED	Use ConfigIO to assign pins to UART
114	UART_NOTENABLED	Use AsynchConfig to enable UART
115	I2C_BUS_BUSY

Table 4.4-2. Group Level Error Codes

Errorcode	Name	Description
1000	LJE_MIN_GROUP_ERROR	Errors above this number stop all requests.
1001	LJE_UNKNOWN_ERROR	Unrecognized error that is caught.
1002	LJE_INVALID_DEVICE_TYPE
1003	LJE_INVALID_HANDLE
1004	LJE_DEVICE_NOT_OPEN	AddRequest() called even thought Open() failed.
1005	LJE_NO_DATA_AVAILABLE	GetResult() call without calling a Go function, or a channel is passed that was not in the request list.
1006	LJE_NO_MORE_DATA_AVAILABLE
1007	LJE_LABJACK_NOT_FOUND	LabJack not found at the given ID or address.
1008	LJE_COMM_FAILURE	Unable to send or receive the correct number of bytes.
1009	LJE_CHECKSUM_ERROR
1010	LJE_DEVICE_ALREADY_OPEN	USB connection in use by another process.
1011	LJE_COMM_TIMEOUT
1012	LJE_USB_DRIVER_NOT_FOUND
1013	LJE_INVALID_CONNECTION_TYPE
1014	LJE_INVALID_MODE
1015	LJE_DEVICE_NOT_CONNECTED	Previously open device is no longer connected.

Table 4.4-1 lists the errors which are specific to a request. For example, LJE_INVALID_CHANNEL_NUMBER. If this error occurs, other requests are not affected.

Table 4.4-2 lists errors which cause all pending requests for a particular Go() to fail with the same error. If this type of error is received the state of any of the request is not known. For example, if requests are executed with a single Go() to set the AIN range and read an AIN, and the read fails with an LJE_COMM_FAILURE, it is not known whether the AIN range was set to the new value or whether it is still set at the old value.