LabJack U3 User Manual

Response:
Byte
0 Checksum8
10xF8
20x10
30x08
4 Checksum16 (LSB)
5 Checksum16 (MSB)
6 Errorcode
7 R
• WriteMask: Has bits that determine which, if any, of the parameters will be written to
flash as the reset defaults. If a bit is 1, that parameter will be updated with the new
passed value. If a bit is 0, the parameter is not changed and only a read is performed.
Note that reads return reset defaults, not necessarily current values (except for LocalID).
For instance, the value returned by FIODirection is the directions at reset, not
necessarily the current directions.
• LocalID: If the WriteMask bit 0 is set, the values passed become the default values,
meaning they are written to flash and used at reset. This is a user-configurable ID that
can be used to identify a specific LabJack. The return value of this parameter is the
current value and the power-up default value.
• TimerCounterConfig: If the WriteMask bit 1 is set, the value passed becomes the default
value, meaning it is written to flash and used at reset. The return value of this parameter
is a read of the power-up default. See Section 5.2.3.
• FIO/EIO/CIO: If the WriteMask bit 1 is set, the values passed become the default
values, meaning they are written to flash and used at reset. Regardless of the mask bit,
this function has no effect on the current settings. The return value of these parameters
are a read of the power-up defaults.
eserved
HardwareVersion
15-18 SerialNumber
19-20 ProductID
21 LocalID
22 TimerCounterMask
23 FIOAnalog
24 FIODirection
25 FIOState
26 EIOAnalog
27 EIODirection
28 EIOState
29 CIODirection
30 CIOState
31 DAC1Enable
32 DAC0
33 DAC1
34 0x00
35 0x00
36 0x00
37 0x00
8 Reserved
9-10 FirmwareVersion
11-12 BootloaderVersion
13-14
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LabJack U3 Specifications

General

Analog Outputs	2
Analog Output Resolution	10 bits
Digital I/O	20
Counter/Timers	2
Interface	USB
Operating Voltage	5 V
Manufacturer	LabJack Corporation
Analog Inputs	16
Analog Input Resolution	12-bit
Max Sample Rate	50 kHz