PAXCDC40 Red Lion Controls, PAXCDC40 Datasheet - Page 14

• Manufacturer Part Number: PAXCDC40
• Description: Modbus Communications Network Interface Card
• Manufacturer: Red Lion Controls

Specifications of PAXCDC40

• Accessory Type: Modbus Communications Network Interface Card
• Brand/series: PAX Series
• Card Type: Extended Modbus Communications Card
• Data Rate: 7⁄8 Bits
• Standards: cULus Listed, CSA Certified and CE Marked
• Voltage, Working: 50 V
• Pax Label Kit: 189 Different Engineering Units, Labels Inserted Inside the Unit
• For Use With: Red Lion PAX Digital Input Panel Meters
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant


SELECTION

This reset action affects all Counter B resets, except the Setpoint Counter Auto
Reset Action in Module 6.

assigned to Counter B. The selection will also affect Counter B scale factor
calculations.

multiplier to obtain the desired process value. A scale factor of 1.00000 will
result in the display of the actual number of input counts. (Details on scaling
calculations are explained at the end of this section.)

factor to obtain the desired process value. A scale multiplier of 1 will result in
only the scale factor affecting the display. (Details on scaling calculations are
explained at the end of this section.)














Select the operating mode for Counter B.
When Counter B is reset, it returns to zero or Counter B count load value.
This selects the decimal point position for Counter B and any setpoint value
The number of input counts is multiplied by the scale factor and the scale
The number of input counts is multiplied by the scale multiplier and the scale
When reset to count load action is selected, Counter B will reset to this value.
  



MODE
Count X1
Count X1
w/direction
Quad X1
Quad X2
Count X2
Count X2
w/direction
COUNTER B COUNT LOAD VALUE *






COUNTER B SCALE MULTIPLIER *


COUNTER B DECIMAL POSITION
COUNTER B OPERATING MODE
COUNTER B SCALE FACTOR
COUNTER B RESET ACTION


DESCRIPTION
Does not count.
Adds Input B falling edge.
Adds Input B falling edge if User 2 is high. Subtracts
Input B falling edge if User 2 is low.
Adds Input B rising edge when User 2 is high.
Subtracts Input B falling edge when User 2 is high.
Adds Input B rising edge when User 2 is high and
Input B falling edge when User 2 is low. Subtracts
Input B falling edge when User 2 is high and Input B
rising edge when User 2 is low.
Adds Input B rising and falling edges.
Adds Input B rising and falling edges if User 2 is
high. Subtracts Input B rising and falling edge if
User 2 is low.


  
 




to

to

  
  


  
 

  
  
  
14
Desired
Display
Decimal DDD

*
8 DIGIT COUNT VALUES
point) will consist of a two part display. This display alternates between the
least 6 significant digits and the remaining most significant digits beginning
with “
to zero and continue counting. Outputs cannot be set to counter values above 6
digits. The annunciator, indicating the counter being displayed, will flash when
the value is above 6 digits.
SCALING CALCULATIONS
value. This is accomplished by the counter mode (x-
scale multiplier (x
calculated using:
Where:
Example:
1. Show feet to the hundredths (0.00) with 100 pulses per foot:
2. Show feet with 120 pulses per foot: Scale Factor would be 1 / (120 x 1 x 1)
General Rules on Scaling
1. It is recommended that, the scale factor be as close as possible to, but not
2. To double the number of pulses per unit, use counter modes direction X2 or
3. A scale factor greater than 1.00000 will cause Counter display rounding. In
4. The number of pulses per single unit must be greater than or equal to the
5. Lowering the scale factor can be accomplished by lowering the counter

Factory Setting can be used without affecting basic start-up.
Counter B may be programmed to reset at each meter power-up.
Any counter display value below -99999 or above 999999 (less decimal
Each counter has the ability to scale an input signal to a desired display
Number of pulses per ‘single’ unit: pulses per unit generated by the
CM: Counter Mode(x-
SM: Scale Multiplier (x
Scale Factor would be 100 / (100 x 1 x 1) = 1
(In this case, the scale multiplier and counter mode factor are 1)
= 0.0083333. (In this case, the scale multiplier of 0.01 could be used: 1 / (120
x 1 x 0.01) = 0.83333 or show to hundredths (0.00): 100 / (120 x 1 x 1) =
0.8333.)
exceeding 1.00000. This can be accomplished by increasing or decreasing
the counter decimal point position, using the scale multiplier, or selecting a
different count mode.
quad X2. To increase it by four times, use counter mode quad X4. Using
these modes will decrease the maximum input frequency.
this case, digit jumps could be caused by the internal count register rounding
the display. The precision of a counter application cannot be improved by
using a scale factor greater than 1. 00000.
DDD value for the scale factor to be less than or equal to one.
decimal position. (Example: 100 (Hundredths)/10 pulses = 10.000 lowering
to 10 (Tenths)/10 = 1.000.)
1
10
100
1000
10000
100000
SF (x
process (i.e. # of pulses per foot)

” in the display. If the display exceeds ± 99999999 the display will roll



) =
COUNTER B RESET POWER-UP *
x
0
0.0
0.00
0.000
0.0000
0.00000


(Number of pulses per ‘single’ unit x CM x SM)
) and decimal point (x


Desired Display Decimal DDD
Counter Decimal Selection
) times factor of the mode 1,2 or 4.

None
Tenths
Hundredths
Thousandths
Ten Thousandths
Hundred Thousandths
) selection of 1, 0.1 or 0.01.



), scale factor (x
). The scale factor is

),