VersaMax Mixed Discrete / High-Speed Counter Module
IC200MDD841
May 2011
GFK-1561H
1
Product Description
The VersaMax Mixed Discrete High-Speed Counter (HSC) module,
IC200MDD841, has twenty 24VDC positive-logic type inputs and twelve
positive-logic 24VDC 0.5Amp outputs.
In its default configuration, the module provides four Type A high-speed
counter inputs and outputs plus twelve standard inputs and eight
standard outputs.
Each counter provides direct processing of rapid pulse signals up to
80 KHz for industrial control applications such as velocity measurement,
material handling, and process control.
OK
1234567 814
HSC/PWM/PT 24VDC
IN 20PT OUT .5A 12PT
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FLD
PWR
Q/I
I
The module’s inputs and outputs can be re-configured for a wide variety
of applications:
▪
The high-speed counter inputs can be set up as standard high-
speed inputs, as four type A counters, as two type A counters plus
one A-quad-B counter, or as one type A-quad-B counter with
homing capability.
▪
Four of the outputs can be configured as pulse-width modulated
(PWM), pulse train, ramping pulse train, or HSC outputs.
When configured for PWM operation, the frequency of each PWM
output is selectable in the range of 22Hz to 2 KHz. The duty cycle of
each PWM output can be set from 1 to 100% depending on the
frequency of the PWM output. See the Minimum % Duty Cycle vs. PWM
Output Frequency graph in the
I/O Modules Manual.
When configured as pulse train or ramping pulse train outputs, the sum
of frequencies may be up to 5,000 pulses per second. Acceleration and
deceleration can be selected from 10 to 1,000,000 p/s
2
.
Power for module operation comes from the backplane. Output devices
must be powered by external voltage.
LED Indicators
Individual green field-side LEDs show the on/off status of each point.
The green FLD PWR LED indicates the presence of field power for the
DC outputs.
The OK LED indicates module status.
▪
On green indicates normal operation.
▪
Flashing green indicates boot mode or update
▪
On Amber indicates self diagnostic error
▪
Off indicates no 3.3V power present.
Module Characteristics
Points
20 DC inputs & 12 DC outputs
Module ID
FFFF9801
Isolation:
User I/O to logic
(optical) and to frame
ground
Point to point
250VAC continuous, 1500VAC for 1 minute
250VAC continuous, 1500VAC for 1 minute
Backplane current
consumption
3.3V output: 130mA,
5V output: 30mA
External power supply
+24VDC nominal, +18 to +30VDC
Thermal Derating
The number of points that can be on at the
same time depends on the surrounding air
temperature, voltage, and the type of carrier
on which the module is installed. To meet
thermal specifications, the module must be
installed on a horizontal DIN rail. There is
no thermal derating at 24VDC for
surrounding temperatures up to 42°C, or at
30VDC for temperatures up to 26°C. For
derating curves at higher temperatures, see
the
I/O Modules User’s Manual.
High Speed Channels
Input frequency
80 KHz maximum
PWM Output frequency 2 KHz maximum
Pulse Output frequency 5 KHz maximum
Counter Output latency 0.5mS max. between output point updates
Input Characteristics
Input voltage
+24VDC nominal, 0 to +30VDC
On state voltage
Off state voltage
+15.0 to +30.0VDC
0 to +5.0 VDC
On state current
Off state current
3.0 to 8.0mA
0 to 0.5mA
On/off response time
7.0ms max. (6.25
s max. for count inputs
and 100
s for Preload/Strobe inputs)
Count Input Impedance 6.6kOhms maximum
Count User input
current
5.5mA at +24VDC
Standard Input
Impedance
9.6kOhms maximum
Standard User input
current
4.0mA at +24VDC
Output Characteristics
Inrush current
2.0A maximum for 100ms
Continuous Load
Current
0.5A maximum
Output voltage drop
0.3V maximum
On/off response time
500
s, maximum
Protection
no internal fuses
Diagnostics
13 words of status data