GFK-1504N
Chapter 13 Mixed Discrete/High-Speed Counter Module
13-15
13
IC200MDD841
Mixed Module, 24 V DC Positive Logic Input 20 Points / Output 12 Point /
(4) High-speed Counter, PWM, or Pulse Train Configurable Points
Outputs
Four of the module’s twelve outputs are high speed outputs. These outputs can
be configured as high speed counter, PWM, or pulse train outputs.
Counter Outputs
Each counter output has a preset on and off point that must lie between the
counter’s high and low limits. The output state indicates when the Accumulator
value is between the Preset on and off points. For example, using the Type B
counter:
OFF PRESET
VALUE
ON PRESET
VALUE
CORRESPONDING
OUTPUT
OFF
ON
TIME
COUNTS
ACCUMULATOR
VALUE
If the output is enabled for the HSC channel being used, the output turns on as
displayed in the following table:
Preset closest to
low limit
Output ON
Output OFF
ON
> ON Preset
< OFF Preset
> OFF Preset
< ON Preset
OFF
< OFF Preset
> ON Preset
< ON Preset
> OFF Preset
The output can be either on or off when the Accumulator value lies between the
Preset points.
n-1
Increasing Counts
Off
Preset
On
Preset
n+1
n
On
Preset
Off
Present
m-1
m+1
m
