User`s guide

Universal Library User's Guide Analog Input Boards - USB-2500 Series
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ChanTypeArray ANALOG, DIGITAL8, DIGITAL16, CTR16, CTR32LOW, CTR32HIGH, CJC, TC,
SETPOINTSTATUS
Note: for information on associating CJC channels with TC channels, refer to
Hardware considerations on page 125.
ChanArray ANALOG: USB-2537, USB-2533: 0 to 63 in single-ended mode,
0 to 31 in differential mode
USB-2527, USB-2523: 0 to 15 in single-ended mode,
0 to 7 in differential mode
DIGITAL8: FIRSTPORTA, FIRSTPORTB, FIRSTPORTC
DIGITAL16: FIRSTPORTA
CTR16: 0-3 counters
CTR32LOW: 0-3 counters
CTR32HIGH: 0-3 counters
CJC: 0 to 2
TC: 0 to 3
SETPOINTSTATUS: 16-bit port that indicates the current state of the 16 possible
setpoints.
ChanTypeArray flag value:
SETPOINT_ENABLE: Enables a setpoint. Refer to Hardware considerations on page
125 for more information.
Rate Analog: Up to 1 MHz
Digital: Up to 12 MHz if no analog channel is selected. Otherwise up to 1
MHz.
Counter: Up to 12 MHz if no analog channel is selected. Otherwise up to 1
MHz.
GainArray ANALOG only; ignore for other ChanTypeArray values.
BIP10VOLTS ( 10 V)
BIP5VOLTS ( 5 V)
BIP2VOLTS ( 2 V)
BIP1VOLTS ( 1 V)
BIPPT5VOLTS ( 0.5 V)
BIPPT2VOLTS ( 0.2 V)
BIPPT1VOLT ( 0.1 V)
PreTrigCount 100000 max
DAQ triggering
DAQ trigger functions and methods supported
UL: cbDaqSetTrigger()
UL for .NET: DaqSetTrigger()
DAQ trigger argument values
TrigSource TRIG_IMMEDIATE, TRIG_EXTTTL, TRIG_ANALOGHW, TRIG_ ANALOGSW,
TRIG_DIGPATTERN, TRIG_COUNTER, TRIG_SCANCOUNT