Specifications are subject to change without notice.
11-4 Specifications
898095
DaqScan/2000
Series
Digital I/O
Channels:
40, expandable up to 272 with external digital DBK options
Input Scanning Modes:
2 programmable
1.
Asynchronous, under program control at any time relative to input scanning
2.
Synchronous with input scanning
Ports:
3 x 8-bit (82C55 emulation), and 1 x 16-bit; each port is programmable as input or output.
Connectors
:
37-pin DSUB (P2) on rear panel: for three 8-bit ports (24-bits)
37-pin DSUB (P3) on rear panel for DIGITAL I/O channels 0 through 15 (16-bit port)
Input Characteristics:
See following Digital I/O figures
Input protection:
±
8 kV ESD clamp diodes parallel
I/O levels:
TTL
Sampling/Update rate:
200 kHz maximum
Output Characteristics:
See following Digital I/O figures
Frequency/Pulse Counters
Counter inputs can be scanned synchronously along with analog and digital scanned inputs, based either on
internal programmable timer, or an external clock source. Bus mastering DMA provides CPU and system-
independent data transfers, ensuring data acquisition performance irrespective of other system activities.
Counters can be configured to clear when read, or to totalize and clear under program control.
Channels:
4 x 16-bit, cascadable as 2 x 32-bit
Frequency Measurement Rate:
10 MHz maximum
Connectors:
37-pin DSUB (P3) on rear panel; pin 18 (CTR0), pin 36 (CTR1), pin 17 (CTR2), pin 35 (CTR 3)
Input Signal Range:
-15 V to +15 V
Trigger Level:
TTL
Input Characteristics:
2.7 k
Ω
series in parallel with 20 pF to common and 10 k
Ω
to +5 V
Input protection:
±
8 kV ESD clamp diodes parallel
Minimum pulse width:
50 ns high, 50 ns low
Timer Outputs
Channels:
2 x 16-bit
Connectors:
37-pin DSUB (P3) on rear panel; pin 15 (TMR0), pin 16 (TMR1)
Output Waveform:
Square wave
Output rate:
1 MHz base rate divided by 1 to 65535 (programmable)
High level output voltage:
2.0 V minimum @ -3.75 mA, 3.0 V minimum @ -2.5 mA
Low level output voltage:
0.4 V maximum @ 2.5 mA
Summary of Contents for OMB-DAQSCAN-2000 Series
Page 12: ...1 6 Daq Systems 949595 DaqScan 2000 Series...
Page 16: ...2 4 Device Overviews 898095 DaqLab 2000 Series...
Page 17: ...Block Diagrams 3 DaqScan 2001 Block Diagram DaqScan 2000 Series 947495 Block Diagrams 3 1...
Page 19: ...DaqScan 2005 Block Diagram DaqScan 2000 Series 947495 Block Diagrams 3 3...
Page 20: ...3 4 Block Diagram 947495 DaqScan 2000 Series...
Page 24: ...4 4 Connectors Indicators Cables Pinouts 898095 DaqScan 2000 Series...
Page 56: ...9 2 Calibration 948695 Daqscan 2000 Series...
Page 62: ...10 6 Troubleshooting Customer Support 898095 DaqScan 2000 Series...
