IP482 Industrial I/O Pack User’s Manual Counter Timer Module
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Acromag, Inc. Tel:248-295-0310 Fax:248-624-9234 Email:solutions@acromag.com http://www.acromag.com
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The Industrial I/O Pack (IP) Series IP482 module provides support for
ten independent 16-bit multifunction counter/timers. Each counter/timer can
be configured for quadrature position measurement, pulse width modulated
output, watchdog timer, event counter, frequency measurement, pulse width
measurement, period measurement, or one shot pulse output.
MODEL
Counters I/O Type
OPERATING TEMPERATURE
RANGE
IP482
10 16-bit
TTL
0
C to +70
C
IP483
5 16-bit
2 16-bit
TTL
RS485/RS422
0
C to +70
C
IP484
5 16-bit
RS485
/
RS422
0
C to +70
C
IP482E
10 16-bit
TTL
-40
C to +85
C
IP483E
5 16-bit
2 16-bit
TTL
RS485/RS422
-40
C to +85
C
IP484E
5 16-bit
RS485
/
RS422
-40
C to +85
C
TTL I/O
– IP482 Counter/Timer I/O is available as TTL only. Mixed TTL
and RS485/RS422 I/O options are available on the IP483. Only
RS485/RS422 I/O is available on the IP484 model.
Quadrature Position Measurement
–
Three input signals can be used
to determine bi-directional motion. The sequence of logic high pulses
for two input signals, A and B, indicate direction and a third signal
(index) is used to initialize the counter. X1, X2, and X4 decoding is also
implemented. X1 decoding executes one count per duty cycle of the A
and B signals, while X2, and X4 execute two and four counts per duty
cycle, respectively.
Pulse Width Modulation
– Each counter can be programmed for pulse
width modulation. The duration of the logic high and low levels of the
output signal can be independently controlled. An external gate signal
can also be used to start/stop generation of the output signal.
Watchdog Timer
– Each counter can be configured as a countdown
timer for implementation as a watchdog timer. A gate-off signal is
available for use to stop the count down operation. Interrupt generation
upon a countdown to zero condition is available.
Event Counter
– Each counter can be configured to count input pulses
or events. A gate-off signal is provided to control count-up or count
down with each event. Interrupt generation upon programmed count
condition is available.
Frequency Measurement
– Each counter can be configured to count
how many active edges are received during a period defined by an
external count enable signal. An interrupt can be generated upon
measurement complete.
1.0 GENERAL
INFORMATION
Table 1.1:
The IP482/3/4
module is available in
standard and extended
temperature ranges
KEY IP482
COUNTER/TIMER
FEATURES
