The Measurement Computing USB 31xx series devices are not supported by the Data Acquisition Toolbox.
To work around this issue, perform these steps to add support for these devices:
1. Quit MATLAB.
2. Find the following file:
$MATLABROOT\toolbox\daq\daq\private\mwmcc.ini
where $MATLABROOT is the MATLAB root installation directory obtained by issuing:
matlabroot
at the MATLAB Command Prompt.
3. Make a copy of this file and rename it to mwmcc.ini.old.
4. Open the file mwmcc.ini in a text editor, and add the following lines at the end of the file:
[USB-3101]
;USB-3101: 16-bit, 4-channel analog voltage outputs
ID = 0x9A
Bus = USB
AOResolution = 16
AOMaxSR = 100
AOScanning = 0
AOClockingType = 3
OutputRanges = 1,100 ; 0-10, -10 - +10 Volts
DIOConfigurable = 1
DPORTS = 1
DPORT0LINES = 8
DPORT0TYPE = 1
DPORT0CONFIG = 3
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
[USB-3102]
;USB-3102 : 16-bit, 4-channel analog voltage/current outputs
ID = 0x9B
Bus = USB
AOResolution = 16
AOMaxSR = 100
AOScanning = 0
AOClockingType = 3
OutputRanges = 1,100,204 ; 0-10, -10 - +10 Volts, 0-20mA
DIOConfigurable = 1
DPORTS = 1
DPORT0LINES = 8
DPORT0TYPE = 1
DPORT0CONFIG = 3
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
[USB-3103]
;USB-3103 : 16-bit, 8-channel analog voltage output
ID = 0x9C
Bus = USB
AOResolution = 16
AOMaxSR = 100
AOScanning = 0
AOClockingType = 3
OutputRanges = 1,100 ; 0-10, -10 - +10 Volts
DIOConfigurable = 1
DPORTS = 1
DPORT0LINES = 8
DPORT0TYPE = 1
DPORT0CONFIG = 3
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
[USB-3104]
;USB-3104: 16-bit, 8-channel analog voltage/current outputs
ID = 0x9D
Bus = USB
AOResolution = 16
AOMaxSR = 100
AOScanning = 0
AOClockingType = 3
OutputRanges = 1,100,204 ; 0-10, -10 - +10 Volts, 0-20mA
DIOConfigurable = 1
DPORTS = 1
DPORT0LINES = 8
DPORT0TYPE = 1
DPORT0CONFIG = 3
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
[USB-3105]
;USB-3105: 16-bit, 16-channel voltage output for USB
ID = 0x9E
Bus = USB
AOResolution = 16
AOMaxSR = 100
AOScanning = 0
AOClockingType = 3
OutputRanges = 1,100 ; 0-10, -10 - +10 Volts
DIOConfigurable = 1
DPORTS = 1
DPORT0LINES = 8
DPORT0TYPE = 1
DPORT0CONFIG = 3
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
[USB-3106]
;USB-3106: 16-bit, 16-channel voltage/current outputs
ID = 0x9F
Bus = USB
AOResolution = 16
AOMaxSR = 100
AOScanning = 0
AOClockingType = 3
OutputRanges = 1,100,204 ; 0-10, -10 - +10 Volts, 0-20mA
DIOConfigurable = 1
DPORTS = 1
DPORT0LINES = 8
DPORT0TYPE = 1
DPORT0CONFIG = 3
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
[USB-3110]
;USB-3110: 16-bit, 4-channel high-drive analog output for USB
ID = 0xA2
Bus = USB
AOResolution = 16
AOMaxSR = 100
AOScanning = 0
AOClockingType = 3
OutputRanges = 1,100 ; 0-10, -10 - +10 Volts
DIOConfigurable = 1
DPORTS = 1
DPORT0LINES = 8
DPORT0TYPE = 1
DPORT0CONFIG = 3
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
[USB-3112]
;USB-3112 : 16-bit, 8-channel high-drive analog output for USB
ID = 0xA3
Bus = USB
AOResolution = 16
AOMaxSR = 100
AOScanning = 0
AOClockingType = 3
OutputRanges = 1,100 ; 0-10, -10 - +10 Volts
DIOConfigurable = 1
DPORTS = 1
DPORT0LINES = 8
DPORT0TYPE = 1
DPORT0CONFIG = 3
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
[USB-3114]
;USB-3114 : 16-bit, 16-channel high-drive analog output for USB
ID = 0xA4
Bus = USB
AOResolution = 16
AOMaxSR = 100
AOScanning = 0
AOClockingType = 3
OutputRanges = 1,100 ; 0-10, -10 - +10 Volts
DIOConfigurable = 1
DPORTS = 1
DPORT0LINES = 8
DPORT0TYPE = 1
DPORT0CONFIG = 3
5. Save the file mwmcc.ini and restart MATLAB.
