Measurement Computing CB-7080 - Manual (Page 5)

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Introduction
CB-7000 is a family of network data acquisition and control modules. They provide A/D, D/A, DI/O,
Timing/Counting and other functions. These modules can be remote controlled by a set of commands.
The common features of CB-7080 and CB-7080D include:
 Two independent 32-bit counters, counter 0 and counter 1.
 Input signals can be isolated or non-isolated.
 Programmable digital filter for isolated and non-isolated input.
 External gate control for isolated and non-isolated input.
 Programmable threshold value for non-isolated input.
 Programmable alarm output.
 Input frequency measurement up to 100 kHz.
The CB-7080D module identical to the CB-7080 with a 5-digit LED display added. The LEDs can display the
counter value and input signal frequency without PC control.
Comparing the 7080 and 7080D
Table 1-1 summarizes the features of the CB7080 and CB7080D modules.
Table 1-1. Comparison between CB-7080 and CB-7080D
CB-7080 CB-7080D
5-digit LED display No Yes
Response to LED command No Yes
Module name programmable programmable
Counter preset value Yes (programmable) Yes (programmable)
Alarm on counter 0 only Yes (programmable) Yes (programmable)
Alarm on counter 0 and 1 Yes (programmable) Yes (programmable)
Channel 0 and channel 1 are both non-
isolated (input mode 0, $AAB0) Yes Yes
Channel 0 and channel 1 are both
isolated (input mode 1, $AAB1) Yes Yes
Channel 0 is non-isolated and channel
1 is isolated (input mode 2, $AAB2) Yes Yes
Channel 0 is isolated and channel 1 is
non-isolated(input mode 3, $AAB3) Yes Yes
Input frequency 100 kHz max. 100 kHz max.
Default setting 4080 compatible

High alarm on counter 0
and 1
 Counter preset value: 0
4080D compatible

High/High-High alarm on counter 0
 Counter preset value: 0