The Dual Rate Totalizer is a dual 5 digit Ratemeter 6 digit
Totalizer in a 1/8 DIN package. User selects 1 of 6 displays to
show A,B or C rate and A,B or C total. Inputs A and B have
separate scaling to read in engineering units.
A 4-20mA (0-20mA) output of the C rate or total is optional.
The user can press the VIEW button to see 6 separate items
total A, total B, total C, rate A, rate B, rate C. Negative values are
displayed with a negative symbol ( user can choose from the following combination of A&B inputs:
TOTAL; with a choice of A+B or A-B; RATIO with choice of
A÷B(x100) to show percent of A to B quantity or A÷[A+B(x100)] to
show percent of A to total quantity.
Two independent presets are standard. User selects whether output A is activated by total or rate value of input A or selected C.
Output B can be activated by total or rate value of input B or
selected C. Outputs activated by A or B total can be set to latch or
autorecycle with an adjustable output duration from 00.1 to 99.9
sec. For rate, ratio, or C total outputs pull in when value is equal or
above the preset and drop out when value is below the preset
minus the selected 0 to 999 hysteresis.
SPECIFICATIONS:
DISPLAY
6 digit, 0.55" High LED
INPUT POWER:
110 VAC ± 15% or 12 to 15 VDC
220 VAC ± 15% or 12 to 15 VDC
24 VAC ± 15% or 12 to 15 VDC
CURRENT:
250 mA DC max. or 6.5 VA AC
OUTPUT POWER (AC powered units only)
+12 VDC @ 50 mA, unregulated -10 + 50%
TEMPERATURE:
Operating:
+32°F (0°C) to +130 F (+54°C)
Storage:
-40 F (-40°C) to +200°F (93°C)
MEMORY
EEPROM stores data for 10 years if power is lost.
INPUTS:
3:High Impedance DC pulse input 4-30 VDC (high), Open or 0-
1 VDC (low),10 KΩ imp. 10 kHz max. speed. Accepts simultaneous inputs. May be used with KEP 711 series or PD & D
series sensors.
3M:Mag. Input, Input A only, accepts 30mV input (50 V max. P/P)
signals 10 KΩ imp. 5 kHz max. (Input B, 4-30V)
3MB: Mag. Input, Inputs A & B, accepts 30mV input (50 V max. P/
P) signals 10 KΩ imp. 5 kHz max.
NOTE: The Mag. inputs have filtering as follows: up to 300hz
@30mV, 5KHz @ .25V to 50V max.
12345
). For the C value, the
RESET:
Front Panel:Resets displayed value and control output
Remote:4-30 VDC negative edge resets all counters,
"A" counter or "B" counter (user selectable).
K FACTOR/SCALING
The unit has two separate K-Factors that are used to convert the
input pulses to engineering units. The 5 digit K-Factor dividers,
with decimal keyed into any position, allow easy direct entry of any
K-Factor from 0.0001 to 99999. Separate factors may be entered
for the 2 separate input channels.
CONTROL OUTPUTS:
Relays:
2 each N.O. Relay; 10 Amps120/240 VAC or 28 VDC.
(N.C. relay contacts and NPN transistor output
available with solder jumpers. Transistor output is
internally pulled up to 10 VDC through relay coil, sinks
from 10 VDC to .5 V @ 100 mA)
Analog Output:
An optional 4-20mA (0-20mA) output is available for
the unit. The output can be programmed
to track rate or total of the C display. This feature is available
by adding suffix A to the part number. Connections are
via a 2 terminal pluggable screw connector.
Programming is accomplished by using the front panel
in conjunction with rear dip switches.
Accuracy: 50uA worst case.
Compliance Voltage: 3 to 30 VDC non inductive.
RS232/RS422SERIAL INTERFACE
If the serial interface option is supplied, up to 99 units can be linked
together. (The terminal addressing the unit must be capable of
driving all loads in the loop.) Unit status and new set points can be
communicated by serial communication. Mode changes, however,
must always be made on the front panel. Data is transmitted at
selected baud rates using standard seven bit ASCII characters and
parity with two additional bits of “Start” and “Stop” to make up the
standard ten bit character.
Data is received and transmitted over standard EIA RS232 or
RS422 levels. Each 10 bit character is made up of a start bit, 7 bit
ASCII code, parity bit and stop bit. Unit number, baud rate and
parity are entered in the “Program Setting” set up mode and remain
in memory even if power is off.
Note that the input impedance of RS232 is 3K or 7K Ohm worst
case. The terminal addressing the unit must be capable of driving
all loads in the loop. RS422 input impedance is much higher and
there is usually no problem driving 25 units. Unit serial transmit line
remains in a high impedance “OFF” state until addressed.
PRESETS
Two control outputs are provided. To set relay values, press “menu”
button until “Relay” appears on the display , the A and B outputs can
be assigned to the A,B or C displays. A 5 digit value can be entered
for both presets and the decimal point location is the same as the
counter. The outputs can be set to energize from 0.1 to 99.9
seconds or latch (0.0). If a value other than 0.0 is entered, the
counters will auto reset at the preset (for A&B counters).
1
SPECIFICATIONS
(continued)
DECODING PART NUMBER
LOCKOUT
Unauthorized front panel changes can be prevented by entering a
user selected 5 digit code. The front panel can be completely
locked out or the presets can remain accessible.
RATEMETER
Accurate to 4 1/2 digits (±1 display digit). The ratemeter uses 1/tau
with 8 digit math, can sample from 2 to 24 seconds maximum, and
auto-range up to 5 digits of significant information. In the “RPS”
mode, the ratemeter displays in units per second, and in the
“scale” mode, units per hour or per minute. The unit will display the
rate of the A&B Inputs.
COUNTER
The two 6-digit counters can count at 10Khz speed. Each has a
seporate 5-digit dividing scale factor. The counters advance on the
positive edge of each pulse. Besides being able to step through the
total and rate values of A & B inputs, the user can see a selected
combination of total or rate of A+B, A-B, A÷BX100 (percent of A to
B), A÷A+BX100 (percent of A to total). A negative display will be
veiwed as a 5 digit display with a negative symbol ( -
12345
).
Example: SP2200 A 3 A
Series:
6 digits counter, 5 digit ratemeter
with presets and scaling.
Operating Voltage:
110 = 110 VAC ± 15% or 12 to 15 VDC
220 = 220 VAC ± 15% or 12 to 15 VDC
24 = 24 VAC ± 15% or 12 to 15 VDC
1= RS232 Communications
2= RS422 Communications
A= Analog Output (4-20/0-20 mA)
CE = CE Approved Version
NOTE: RS232/RS422 & Analog Output options can not be combined
2
HOW TO MOUNT THE UNIT
The unit is designed to be mounted with a gasket providing a water tight seal. Two mounting brackets are provided to
secure the unit to the panel. A panel less than .1" may distort if the clamps are screwed too tightly.
Slide the body of the unit through the rubber gasket. Insert the unit into the panel. As shown in "FIG. A", slide the brackets
up the groove to press against the back of the panel. Insert screws into rear of brackets and tighten them evenly and
alternately. Do not over tighten! A normal level of torque is required. Maximum torque should be 3" pounds.
This product is designed to be panel mounted and is NEMA 4 rated if proper mounting procedures are followed and the
required and supplied hardware is correctly used.
If the panel in which the unit is mounted is less than .125 of an inch thick, the possibility exists that there will be some
flexing. Should this flexing occur, the resulting deformation of the panel could cause a loss of the water tight seal. In case
this should occur, the use of silicone or other sealant would be recommended.
This product is designed to the NEMA 4 rated. However, the fact that we are unable to control either the location in which
the device is installed or the actual installation itself requires that the company's liability shall extend only to the repair or
replacement of a defective product.
We are prepared to offer additional assistance in those special situations where normal mounting methods do not seem to
satisfy the customers needs. This assistance may be obtained by calling the factory and asking for Application Engineering.
FIG A
DIMENSIONS
3.925
(99.7)
4.437
(112.7)
2.625
(66.68)
0.587
(14.91)
BEZEL
GASKET
4.245
(107.8)
CUSTOMER PANEL
Panel Thickness 0.062" (1.5)
to 0.187" (4.7) max.
3.622
(92)
1.772
(45)
3
WIRING THE SP2200
The rear terminal contains 12 screw terminals for connecting #14 to #28 gauge wire.
The unit is controlled by a microprocessor and, therefore, an electrically "noisy" environment could cause operating
problems. The input power line should not be common to power lines for motors, pumps, contactors, etc.
The unit is designed to be immune from line or RF voltage interference. In some environments voltage spikes of over 100
volts, even 1000 volts, can occur. When common to a power line driving motors voltage fluctuations can be extreme and
rapid. Lines driving DC or AC solenoids, relays, or actuators can also cause problems.
Four sources of noise can occur:
1) AC power line noise - If the unit cannot be connected to a clean power source, an inductive load suppressing device
(MOV as GE # V130LA1 or Resistor Capacitor as Paktron # .2 uf/220 ohm @ 400V) can be installed. Although locating
the suppressor across the AC supply at the unit should help, best results are obtained by connecting the suppressor
across the leads of the "load" at the device causing the spike.
2) Input line noise -The noise is carried on the input and D.C. ground lines. Make sure the input wires are never run into
the unit in a bundle with power input lines. Also, keep these input lines isolated from inductive lines from devices
drawing heavy loads. If there is a possibility of electrical noise, we recommend using shielded cable, with the shield
being hooked to the D.C. ground terminal on the instrument, and to "earth" at one point in the circuit, preferably at the
D.C. ground terminal of the unit.
3) Output lines - The unit has two relay outputs. When these outputs are used to run external relays or solenoids, spikes
can be generated upon activation. This noise can spread through the instrument causing operating problems. If the
source is a D.C. operated device, a general purpose diode (IN4004) placed across the solenoid prevents electrical
noise spikes. Connect the cathode (banded side) to the more positive side of the coil. If the source is an A.C. operated
device, use a MOV or Resistor Capacitor across the coil.
4) 12 VDC output supply - Noise can be generated on the 12 VDC output supply if it is used to drive inductive loads or if
the current draw exceeds 50 mA. Insure that all inductive loads have a diode (such as IN4004) across the coil and that
the current does not exceed 50 mA.
4
CONNECTING AC / DC POWER
NOTE: Connect power only after other connections are finished. Do not touch the live AC power terminals! The unit has
been designed with an isolated AC input. Thus, polarity is not a concern for the AC input. The chassis is plastic, therefore
earth ground is not used. For D.C. operation, connect + 12V to pin 7 and - D.C. to pin 8.
CONNECTING SENSOR INPUTS
These diagrams show how to hook typical input sensors to the unit. The unit supplies an unregulated 12 Volt (50mA)
output to power these sensors (Pin 7).
A valid pulse is one which makes a transition from the off-state (0 to 1V) to the on-state (4 to 30V): a positive going edge.
The input impedance is 10K Ohms to ground. The unit can be programmed from the front panel for slow switch closure
inputs up to 40Hz (select "Lo CPS"), or solid state switches (select "hi CPS") up to 9.99KHz. No rear terminal jumpers are
required. Use PNP (sourcing) type pulsers.
TYPICAL SENSOR HOOKUP
RELAYS
A
B
TURBINE FLOWMETER
1 COMMON
2 N.O. (N.C./NPN)
3 COMMON
4 N.O. (N.C./NPN)
5 A INPUT
6 B INPUT
7 12 V OUTPUT/ + DC INPUT
8 - DC (GROUND)
9 RESET INPUT
10 NOT USED
11 AC INPUT
12 AC INPUT
*
COUNT
POWER
GROUND
D08N
* PULLUP RESISTANCE
4.7K TYPICAL
POWER
COUNT
GROUND
D12P
TYPICAL FLOW SENSOR HOOKUP
STRIP CHART
RECORDER
+
-
PULSE OUTPUT
PULSE OUTPUT
+12V
GND
1- COMMON
2- N.O.(N.C./NPN)
3- COMMON
4- N.O.(N.C./NPN)
5- A INPUT
6- B INPUT
7- 12VDC OUT/+DC IN
8- -DC (GROUND)
9- RESET INPUT
10- NOT USED
11- A.C. INPUT
12- A.C. INPUT
RELAYS
A
B
SWITCH
ON
13- V+
14- I SINK
OFF
RUN
4-20mA
RATE
RUN
1 2 3 4
OUTPUT
ON
CAL.
0-20mA
COUNT
SET
ANALOG
TURBINE FLOWMETER
5
J4
J5
J6
J3
J1
J2
CR1
R3
C8R7R5
R4
U1
CR2
REV
20229
CR6
CR3
U3
P1
R10R6C6
C7
CR4
CR5
C4
R2
R1
C3
C5
U2
U4
U6
U5
R8
R9
C1
C2
C9
B
SELECTABLE COMBINATIONS
A ADD B - Scaled A input added to the Scaled B input.
A SUB B - Scaled A input subtracted by the Scaled B input.
A / B - Scaled A input divided by the Scaled B input X 100 to show percent of A to B.
A / A + B - Scaled A input divided by the Scaled A input plus the scaled B input X 100 to show
percent of A plus B.
WHAT CAN YOU VIEW?
By pressing the VIEW button one time the user can veiw the active display. By pressing the VIEW button more than
once the user can step through all 6 displays to choose which display the user wishes to view.
tot a - Total of display A
tot b - Total of display B
tot c - Total of display C
rate a - Rate of display A
rate b - Rate of display B
rate c - Rate of display C
OUTPUT JUMPER SELECTIONS
FUNCTION
"A" RELAY
N.C. OUTPUT
"B" RELAY
N.C. OUTPUT
"A" PRESET
TRANSISTOR (NPN)
*
"B" PRESET
TRANSISTOR (NPN)
*
BOTTOM VIEW AT TERMINAL
L
20192
12 11 10 9 8 7 6 5 4 3 2 1
* The unit must be removed from the case to access jumpers C & F, all
other jumpers can be accessed by removing the plastic extender.
NOTE: All three pads at jumpers 2 and 4 are connected.
MODIFICATION
CUT JUMPER
AT "A" "B" TO "2"
CUT JUMPER
AT "D" "E" TO "4"
CUT JUMPER
AT "A" "C" TO "2"
CUT JUMPER
AT "D" "F" TO "4"
H
G
4
FC
DE
2
MILLIVOLT INPUT OPTION
JUMPER SELECTIONS
If the unit has the millivolt input bd.# 20229, A & B inputs can be
separately solder jumper programmed to accept either a low millivolt or 4-30 V input. Each unit shipped is programmed according
to part number. If solder jumpers are made, the part number
should be modified to reflect the changes made.
Press to "reset"
in operating
mode. Press to
"enter" in
programming
mode.
RUN
MODE
E
PRGM
Press to
enter lock code
for panel lock.
PROGRAMMING FLOWCHART
PRGM
RST
ENTER
RST
ENTER LOCK PRE A PRE BVIEW PRGM
Press to view
or change
preset A.
ABCD
Press to view
or change
preset B.
E
Press to alternately
view A,B,or C
Rate / Total
displays.
Press this key to step through menu choices.
Press this key to enter displayed value
Press to cycle
through PROGRAM choices.
Press to toggle
between choices
in program
mode.
FACTOR
E
PRGM
COUNT
E
PRGM
RATE
E
PRGM
LOC
E
PRGM
RELAY
E
PRGM
ENTER
RST
ENTER
RST
ENTER
RST
ENTER
RST
ENTER
ENTER
a addb
asub b
a
/b
a
/a+b
RST
ENTER
RST
ENTER
RST
ENTER
PRGM
RST
ENTER
RST
ENTER
E
RST
ENTER
RST
b totb rate
#####
E
PRGM
figur#
rst al
rst 1
RST
ENTER
PRGM
RST
ENTER
RST
ENTER
E
PRGM
E
RST
ENTER
RST
ENTER
RST
ENTER
tot b
tot c
rate brate c
E
PRGM
dly ##
E
PRGM
rst arst b
RST
ENTER
du
RST
hy
ENTER
RST
ENTER
hy
RST
ENTER
hi cps
lo cps
RST
ENTER
RST
ENTER
##.###.#
##.#
ENTER
ENTER
RST
RST
RST
ENTER
RST
ENTER
E
PRGM
RST
ENTER
RST
ENTER
ENTER
RST
ENTER
RST
ENTER
RST
total
ratio
E
PRGM
E
PRGM
E
PRGM
#####
z 60z 3600
code
tot a
tot c
rate arate c
RST
DP F a
DP loc
rps
E
PRGM
scale
lc all
E
PRGM
lc prg
a tot
E
PRGM
a rate
RST
ENTER
RST
ENTER
ENTER
ENTER
ENTER
ENTER
RST
DP F b
ENTER
E
PRGM
E
PRGM
RST
nor ##
ENTER
#####
RST
du
##.#
RST
hy
##.#
RST
hy
##.#
RST
RUN
MODE
7
The following is a list of abbreviations as they appear on the display and front panel of the unit.
ABBREVIATIONDESCRIPTION
FACTOR
DP F A
DP F B
COUNT
DP LOC
total
ratio
A SUB B
A ADD B
SCALING FACTOR - For A and B Inputs. Each input has a separate 5 digit dividing scale factor.
DECIMAL POINT FOR FACTOR A - Enter location of decimal point for scaling Factor A by pressing the
button under the digit where the decimal is desired.
DECIMAL POINT FOR FACTOR B - Enter location of decimal point for scaling Factor B by pressing the
button under the digit where the decimal is desired.
PORTION OF MENU FOR SETTING COUNTER VARIABLES AND “C” DISPLAY COMBINATIONS.
DECIMAL POINT LOCATION - Enter desired location of decimal by pushing the button under the digit
where the decimal is desired. Changing the decimal will change the decimal location in the A,B&C total
as well as the rate displays.
TOTAL - Allows the unit to display A ADD B or A SUBTRACT B ( a add b or a sub b)
RATIO - Allows the unit to display A DIVIDED BY B X 100 to show percent of A to B or
A DIVIDED BY A PLUS B X 100 to show percent of A to A + B. ( A/B or A/A+B)
A SUBTRACT B - The number of scaled pulses from Input B are subtracted from the number of scaled
pulses from Input A. (-99999 TO 999999)
A ADD B - The number of scaled pulses from the A Input are added to the number of scaled pulses from the
B Input.
a / bA DIVIDED BY B - The number of scaled pulses of input A are divided by the number of scaled pulses of
input B X 100 to give the percent ratio of A ÷ B.
a / a+bA DIVIDED BY A PLUS B - The number of scaled pulses of input A divided by A plus the number of scaled
pulses of input B X 100 to give the percent ratio of A ÷ A + B.
RST al
rsT 1
HI CPS
LO CPS
RATE
RPS
SCALE
RESET ALL - When the remote reset is negative edged triggered, A,B, & C total displays are reset to 0.
The reset button (rst) will only reset what is being displayed. If the C display is reset both A&B displays
are reset as well.
RESET ONE - Will give a chose between resetting the A or B total displays. If the A display is chosen and the
remote reset is negative edged triggered, only the A display is reset. If B display is chosen the same applies.
The C display will update accordingly. The reset button (rst) will only reset what is being displayed.
If the C display is reset both the A&B displays are reset as well.
HIGH COUNTS PER SECOND - This sets the unit to accept high count speeds (0-9.99KHz)
LOW COUNTS PER SECOND – This sets the unit for contact debounce filtering (0-40Hz)
PORTION OF MENU FOR SETTING RATE VARIABLES
RATE PER SECOND - The display will read in rate per second.
SCALING - Allows unit to display rate per minute or rate per hour.
Z 60
DIVIDE K FACTOR BY 60 - This sets the unit for rate per minute; equal to 60 times rate per second.
8
Z 3600
DIVIDE K FACTOR BY 3600 - This sets the unit for rate per hour; equal to 3600 times rate per second.
NOR##
FIGUR ##
DLY##
LOC
LC PRG
LC ALL
CODE
RELAY
NORMALIZING FACTOR - Normalizes (averages) the data being received. Higher settings provide more
normalizing (averaging) for a more stable display. Derived from the equation:
(Old Data x "NOR" + New Data)
("NOR" + 1)
SIGNIFICANT FIGURE - This sets the amount (1-5) of meaningful figures the unit will display. (RATE DIS
PLAY ONLY). FOR EXAMPLE: If "2" is set as the figure, a rate of 273.45 will be displayed as 270.
DELAY FACTOR - The amount of time (02 to 24 sec.) the unit will "look" for valid data, before the display
defaults to zero. (RATE DISPLAY ONLY)
LOCK - This portion of the menu allows you to:
1) lock the program (presets and front reset are still accessible)
2) lock all (presets, front reset, and program are locked).
LOCK PROGRAM - This will lock the program, but allows the front reset and the presets to be changed when
the unit is in the lock mode.
LOCK ALL - This will lock the program, reset and the presets when the unit is in the locked mode. The
presets can be viewed, but not changed.
LOCK CODE - This message (code) will flash on display for approximately 3 seconds. It will be followed by a
5 digit number (xxxxx). The number you enter here will be the code to lock and unlock the unit.
RELAY - This portion of the menu allows you to set your relay operation variables.
A TOT
tot aRELAY A FOR A TOTALIZER - If selected, the A output is activated by A total and user can select auto
tot cRELAY A FOR C TOTALIZER - If selected, the A output is activated when C total is equal or greater then
A RATE
rate aRELAY A FOR A RATE - If selected, the A output is activated when A rate is equal or greater than preset A
rate cRELAY A FOR C RATE - If selected, output A is activated when C rate is equal or greater than preset A and
hy ##.#HYSTERESIS OF RELAY - 0 - 99.9 value which user selects as difference between activation and drop out of
du ##.# DURATION OF OUTPUT FOR A OR B TOTAL - If set 00.1 to 99.9 sec, selected counter autoresets at preset
RELAY A FOR TOTALIZER - When this is selected the user has a choice of having Preset A follow the A
(tot a) or C (tot c) display.
recycle with duration of 00.1 to 99.9 sec or latched till reset if 00.0 is programmed.
preset A and drops out when C total goes below preset A by selected 0 - 99.9 hysteresis.
RELAY A FOR RATE - When this is selected, output A will activate when the Rate of either display A or
display C (user selectable) equals or exceeds preset A. The relay will drop out when the selected rate falls
below preset A by selected 0 - 99.9 hysteresis..
and drops out when A rate goes below preset A by selected 0 - 99.9 hysteresis.
drops out when the C rate goes below preset A by selected 0 -99.9 hysteresis.
output for rate and “C” value. Output activates when value is equal or above preset but only drops out when
value is below preset by selected hysteresis value.
and output is active for selected time. If set 00.0 counter does not autoreset and output is active as long as
count is equal or above preset.
9
b TOTRELAY B FOR TOTALIZER - When this is selected, the user has a choice of having Preset B follow the B
(tot B) or C (tot c) display.
tot bRELAY B FOR B TOTALIZER - If selected, the B output is activated by B total and user can select auto
recycle with duration of 00.1 to 99.9 sec or latched till reset if 00.0 is programmed.
tot cRELAY B FOR C TOTALIZER - If selected, the B output is activated when C total is equal or greater then
preset B and drops out when C total goes below preset B by selected 0 - 99.9 hysteresis.
b RATERELAY B FOR RATE - When this is selected, output B will activate when the Rate of either display B or
display C (user selectable) equals or exceeds preset B. The relay will drop out when the selected rate
falls below preset B by selected 0 - 99.9 hysteresis..
rate bRELAY B FOR B RATE - If selected, the B output is activated when B rate is equal or greater than preset B
and drops out when B rate goes below preset B by selected 0 - 99.9 hysteresis.
TERMINATION: REAR VIEW
ANALOG
1- COMMON
2- N.O.(N.C./NPN)
3- COMMON
4- N.O.(N.C./NPN)
5- A INPUT
6- B INPUT
7- 12VDC OUT/+DC IN
8- -DC (GROUND)
9- RESET INPUT
10- NOT USED
11- A.C. INPUT
12- A.C. INPUT
RELAYS
A
B
SWITCH
ON
13- V+
14- I SINK
OFF
RUN
4-20mA
RATE
RUN
1 2 3 4
OUTPUT
ON
CAL.
0-20mA
COUNT
SET
Analog OutSetup SwitchesSerial Port
13 14
REAR VIEW
1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4
ON
10
CALCULATING SCALE FACTORS
There are two separate dividing scale factors, one for input "A" and one for input "B". The factor to enter is the number of
pulses per the desired unit of measurement. The factor ranges from 0.0001 to 99999. The factor is the same for rate and
count. Because the "units per second", "minute", or "hour" are field programmable from the keypad, scale factor calculations for the ratemeter are easy. Here are some examples:
SCALING FACTOR EXAMPLES:
UNIT COUNTING:
You pick up a notch on a paper roll (1 pulse per shaft revolution). Each revolution equals 3 feet. To
find the number of pulses per foot, simply divide "1 pulse" by "3 feet" (1÷ 3 = .3333).
Solution - One foot equals 0.3333 pulses, enter this as the scale factor and the display will read in
feet.
RATE:
A conveyor carrying bottles must be controlled for bottle speed. For each revolution of the front roller, three bottles
travel by. Thus, one revolution equals 3 bottles. A wheel with seven spokes is mounted on the roller. The user
can't sense bottles because they are traveling through a washer, so a sensor is placed at the roller, sensing seven
pulse per revolution of the shaft, which equals 3 bottles per revolution.
To calculate the scale factor (7 ppr ÷ 3 bottles) = 2.3333 scale divider. Set rate per second, minute or hour as
desired.
FLOW IN LITERS:
A flow meter is generating 52.6 pulses per gallon. The desired readout is in liters. Since there are 3.785 liters per
gallon, divide 52.6 by 3.785 to find the number of pulses per liter (52.6 ÷ 3.785 = 13.897).
Enter 13.789 as the scale factor so the display will read in liters.
CUT TO LENGTH:
An aluminum sheeting plant has a cut to length application to customer specification. A 100 pulse per revolution
encoder with a 12" wheel is used to sense. The travel of aluminum sheets is in 0.1 inches. Thus, after 100 pulses,
you want 12.0 to appear on the display. Note that decimal point is for display only. Factor must be calculated to
show all desired units of measure. Thus, 100 ÷ 120 (total desired units of measure) = 0.8333. Enter 0.8333 as your
scale factor. Set “dummy”decimal point location to 0.0 under Program Count section.
FLOW BOILER OR MOTOR “A-B”:
Fuel usage of a boiler can be monitored using the “A-B” option. Separate factors can be entered for Factors “A”
and “B”, but the time base must be the same for rate.
11
PROGRAMMING
STEP
1
SETTING
SCALING
FACTORS
PRESS
PRGM
ENTER
ENTER
ENTER
DISPLAY
factor
dp f a
#####
dp f b
REMARKS
This section of the menu is used to set
up the scaling factors for inputs A & B.
This sets the decimal for factor A.
Press the arrow key under the digit
where the decimal is desired. To clear
the decimal, press the arrow key furthest to the right (PRGM) .
This is the scaling factor for input A. To
change, press the arrow key under the
digit(s). Press ENTER to enter the
displayed value.
This sets the decimal for factor B.
Press the arrow key under the digit
where the decimal is desired. To clear
the decimal, press the arrow key furthest to the right (PRGM) .
ENTER
#####
This is the scaling factor for input B. To
change, press the arrow key under the
digit(s). Press ENTER to enter the
displayed value.
12
STEP
2
SETTING
THE
COUNTER
PRESSDISPLAYREMARKS
factor
PRGM
This section of the menu sets up the
counter and combination “C” informa-
PRGM
count
tion.
This sets the decimal location for the
A,B&C counters. Press the arrow key
dp loc
ENTER
under the desired digit location. To
clear the decimal, press the arrow key
furthest to the right. Press the ENTER
key to enter the displayed location.
ENTER
ENTER
ENTER
ENTER
total
or
ratio
a sub b
or
a add b
a/b
or
a/a+b
rst al
or
rst 1
Press the program key to choose
Total or Ratio. Press the ENTER
key to enter the displayed choice.
This section will only appear if Total is
selected. Choose A SUB B (A subtract
B) or A ADD B. Press the ENTER key
to enter the displayed choice.
This section will only appear if RATIO
is selected. Choose A÷B or A÷A+B.
Press the ENTER key to enter the
displayed choice.
Press the PRGM key to choose
RESET ALL (resetting A,B&C displays)
or RESET 1 (resetting a choice of
either A or B display) Press the
ENTER key to enter the displayed
choice.
ENTER
ENTER
rst a
or
rst b
hi cps
or
lo cps
Press the PRGM key to choose
RESET A or RESET B. Press the
ENTER key to enter the displayed
choice.
Press the PRGM key to choose HIGH
CPS (0-9.99KHz) or LOW CPS (040Hz). Press the ENTER key to enter
the displayed choice.
13
STEP
3
SETTING
THE RATE
PRGM
PRGM
REMARKSPRESSDISPLAY
factor
count
PRGM
ENTER
ENTER
ENTER
ENTER
rate
rps
or
scale
z 60
or
z 3600
nor ##
figur #
This section of the menu is used to set up
the rate information.
Press the PRGM key to choose RPS (rate
per second) or SCALE (RPM, RPH). Press
ENTER to enter displayed choice.
Press PRGM to choose ÷60 (RPM) or
÷3600 (RPH). Press ENTER to enter displayed choice.
This sets the normalizing (averaging) factor. Press the arrow keys under the desired digits to change. Press ENTER to
enter displayed value.
This sets the number of significant figures
to be displayed. Press the arrow key under the digit to change. Press ENTER to
enter displayed value.
ENTER
dly #.#
This sets the delay time (2 to 24 sec.) that
the unit will "look" for valid input data before the display falls to 0. Press the arrow
key under the digits to change. Press ENTER to enter displayed value.
14
PRESS
DISPLAYREMARKS
STEP
4
SETTING
LOCK
PRGM
PRGM
PRGM
PRGM
ENTER
ENTER
factor
count
rate
loc
LC PG
or
LC ALL
CoDE
Flashes
followed by:
#####
This section of the menu is used to set up
the lockout type and code.
LC PG = Locks program but presets and
reset are accessible.
LC ALL= Locks entire keypad.
Press the PRGM button to toggle between
choices; Press ENTER to enter displayed
choice.
After CODE flashes the display will show the
existing lock code. To change the code press
the key under each digit to be changed. Press
ENTER to enter displayed value.
LOCK
AND
UNLOCK
UNIT
PRESS
LOCK
ENTER
CoDE
Flashes
followed by:
0
LoC
or
uN LoC
When in the run mode press LOCK. After
CODE goes out, key in the lock code (see
programming step 4) by pressing the keys
under the digits to be changed. Press the
ENTER key to enter the displayed code.
After the code is entered the unit will display
LOC (unit is locked) or UN LOC (unit is unlocked). This message will be displayed for
approximately 3 seconds before the unit returns to the run mode.
15
DISPLAYPRESS
REMARKS
STEP
5
SETTING
THE
RELAYS
PRGM
PRGM
PRGM
PRGM
PRGM
ENTER
ENTER
factor
count
rate
loc
relay
a tot
or
a rate
tot a
or
tot c
This section sets up the relay information.
Press the PRGM key to choose A TOT (A
relay assigned to total) or A RATE (A relay
assigned to rate). Press enter when the desired choice is displayed.
This section will only appear if a tot is selected. Press the PRG button to choose tota or tot c. Press the ENTER key to enter the
displayed choice
ENTER
ENTER
ENTER
ENTER
du ##.#
hy ##.#
rate a
or
rate c
hy ##.#
Set relay duration .1 to 99.9 sec.
Counter autoresets and relay is energized
for selected time. If 00.0 is selected counter
does not autoreset. Output is active if counter
is equal or above preset.
This is the hysteresis setpoint
for relay A (00.0 to 99.9). This section will
only appear if tot c is selected.
This section will only appear if a rate is
selected. Press the PRG. button to choose
rate a or rate c. Press the ENTER key to
enter the displayed choice.
This is the hysteresis setpoint
for relay A (00.0 to 99.9).
16
ENTER
b tot
or
b rate
Press the PRGM key to choose B TOT (B
relay assigned to total) or B RATE (B relay
assigned to rate). Press enter when the
desired choice is displayed.
ENTER
ENTER
ENTER
ENTER
tot b
or
tot b
du ##.#
hy ##.#
rate b
or
rate c
This section will only appear if b tot is selected. Press the PRG button to choose totb or tot c. Press the ENTER key to enter
the displayed choice
Follow same procedures as A ##.#
This is the hysteresis setpoint
for relay A (00.0 to 99.9). This section will
only appear if tot c is selected.
This section will only appear if b rate is
selected. Press the PRG. button to choose
rate b or rate c. Press the ENTER key to
enter the displayed choice.
SETTING
THE
PRESETS
ENTER
PRESS
PRE A
PRE B
hy ##.#
PRE A
Followed by last
PRE A entered
PRE B
Followed by last
PRE A entered
This is the hysteresis setpoint
for relay A (00.0 to 99.9).
PRE A = Preset A (Final Preset);
The set point at which output A
will trigger. If the displayed value
is not the desired preset, press
the key(s) under the digit to be
changed. Press ENTER to load
Preset
PRE B = Preset B (Prewarn);
The set point at which output B
will trigger. If the displayed value
is not the desired preset, press
the key(s) under the digit to be
changed. Press ENT to load
Preset
17
OUTPUT WIRING
The following diagrams detail the connection of the relay and analog output options. Each relay consist of a form A contact
(Normally Open). NPN transistor or Normally Closed contacts are available with solder jumpers (see Jumper Options).
SOLENOID (Single Stage)
Use Relay A (pins 1 & 2) for single stage preset. When the count or rate (selectable) reaches Preset A, Relay A will
energize. When Relay A closes, current passes through the solenoid for activation. When operating AC solenoids,
we recommend the use of an MOV to reduce inductive kickback (use a diode for DC solenoids).
ANALOG
OFF
RUN
RATE
RUN
OUTPUT
ON
CAL.
0-20mA
COUNT
SET
ANALOG OUTPUT
The analog output can be selected to output 4-20 mA or 0-20 mA and can be selected to track the rate or count of
the C display. Pin 13 supplies 12 to 18V to power the current loop. Pin 14 supplies the current sinking driver.
When connecting a strip chart recorder, make connections as follows:
SOLENOID
MOV
recommended
D08P
Prox Sensor
BLK
BRN
BLU
1- COMMON
2- N.O.(N.C./NPN)
3- COMMON
4- N.O.(N.C./NPN)
5- A INPUT
6- B INPUT
7- 12VDC OUT/+DC IN
8- -DC (GROUND)
9- RESET INPUT
10- NOT USED
11- A.C. INPUT
12- A.C. INPUT
RELAYS
A
B
SWITCH
ON
13- V+
14- I SINK
4-20mA
1 2 3 4
ALARMS
STRIP CHART
13- V+
14- I SINK
OFF
RUN
4-20mA
COUNT
RATE
RUN
OUTPUT
ON
CAL.
0-20mA
SET
TURBINE FLOWMETER
RECORDER
+
-
PULSE OUTPUT
PULSE OUTPUT
+12V
GND
1- COMMON
2- N.O.(N.C./NPN)
3- COMMON
4- N.O.(N.C./NPN)
5- A INPUT
6- B INPUT
7- 12VDC OUT/+DC IN
8- -DC (GROUND)
9- RESET INPUT
10- NOT USED
11- A.C. INPUT
12- A.C. INPUT
RELAYS
A
B
SWITCH
ON
1 2 3 4
ANALOG
TURBINE FLOWMETER
The relays can be used to trigger alarms which warn the operator that a batch is complete or the rate has
exceeded a set speed. The outputs are programmable to be assigned to the A,B or C rate/count. When
assigned to the count, the relays can have a user selectable on time (duration) or can be latched until reset.
ANALOG
OUTPUT
ON
CAL.
0-20mA
COUNT
SET
LIGHT
BELL
1- COMMON
2- N.O.(N.C./NPN)
3- COMMON
4- N.O.(N.C./NPN)
5- A INPUT
6- B INPUT
7- 12VDC OUT/+DC IN
8- -DC (GROUND)
9- RESET INPUT
10- NOT USED
11- A.C. INPUT
12- A.C. INPUT
RELAYS
A
B
SWITCH
ON
13- V+
14- I SINK
OFF
RUN
4-20mA
RATE
RUN
1 2 3 4
18
ANALOG OUTPUT OPTION
Description:
An optional 4-20mA (0-20mA) output has been added to the unit.
The output can be programmed to track C rate or C total.
This feature is available by adding suffix A to the part number.
Connections are via a 2 terminal pluggable screw connector.
Connections: (see FIG. 1)
PIN13 supplies the 12 to 18 VDC to power the current loop.
PIN14 is the control sink driver
Accuracy:
50uA worst case
Compliance Voltage:
3 to 30 VDC non inductive
Setup:
The optional analog output feature uses 4 dip switches on the back
for setup. These switches are used as follows:
SW1 - View or change "set low" and/or "set high" values
SW2 - Select output for rate or total
SW3 - Select 4-20mA or 0-20mA
SW4 - Calibrate the unit.
After the regular parameters shown in the programming flowchart
have been set, locate the 4 switches on the back of the unit. (see
FIG. 1)
SWITCH 4: Calibrate (normally off)
Switch 4 is used for calibration. Calibration is done at the factory
and should not be needed (see SWITCH 1 to enter high and low
values). If recalibration is desired, a calibrated 20mA ammeter
with 1uA resolution is needed. Attach the "+" lead of the meter to
pin 13 and the "-" lead to pin 14. Set switch 4 ON (up). The unit
will output approximately 20.000mA and a decimal will light in the
third position. Read the output using the ammeter. Press PRE A.
If the display is the same as the ammeter reading, press ENTER.
If not, press buttons A through E to step to ammeter reading and
ENTER. (Disregard display which now shows the last count reading with decimal point in third position) Return switch 4 to OFF
(down) position.
Switch Settings:
SWITCH 1: Enter Analog Low & High (normally off)
Switch 1 is used to load in the low (4mA or 0mA) and/or the high
(20mA) output settings. With power on, set switch 1 ON (up).
LOW SETTING is viewed or changed by pressing PRE A. If the
displayed value is correct, press ENTER. If not, press buttons A
through E to step to the desired value and press ENTER. (disregard the display which will show the last count reading).
HIGH SETTING is viewed or changed by pressing PRE B. If the
displayed value is correct, press ENTER. If not, press buttons A
through E to step to desired value and press ENTER.
Return switch 1 to OFF (down) position, PRE A and PRE B buttons
now function to view or change relay trip values.
SWITCH 2: Select Count or Rate
SW2 OFF (down): Analog output follows C rate
SW2 ON (up): Analog output follows C count
SWITCH 3: Select 4-20mA or 0-20mA
SW3 OFF (down): Selects 4-20mA output range
SW3 ON (up): Selects 0-20mA output range
FIG. 1
Analog OutSetup SwitchesSerial Port
13
1
Typical Wiring:
TURBINE FLOWMETER
14
REAR VIEW
2
3
4
5
STRIP CHART
RECORDER
6
7
8
+
-
PULSE OUTPUT
PULSE OUTPUT
+12V
GND
9
10
1- COMMON
2- N.O.(N.C./NPN)
3- COMMON
4- N.O.(N.C./NPN)
5- A INPUT
6- B INPUT
7- 12VDC OUT/+DC IN
8- -DC (GROUND)
9- RESET INPUT
10- NOT USED
11- A.C. INPUT
12- A.C. INPUT
11
1 2 3 4
12
RELAYS
A
B
SWITCH
ON
ON
13- V+
14- I SINK
OFF
RUN
4-20mA
RATE
RUN
1 2 3 4
ON
CAL.
0-20mA
COUNT
SET
ANALOG
OUTPUT
19
TURBINE FLOWMETER
INTERFACE CARD RS 232/422 OPERATION
RS 232/422 SET-UP:
All serial communication mode changes must be done
through serial communications. Mode changes cannot be
done through the front panel. To initialize the unit, place a
jumper between pin 7(+12V )[bottom board] and pin 1(init) [DB
-9 connector] on initial power up. The unit defaults to: 300
baud rate,"MARK" parity and device number 01. To enter the
program mode you must set your terminal for 300 baud rate
and "MARK" parity. Next, type D1(s), (s)= space bar. The
unit will echo back "DEVICE #1:". Now type EP (enter
program) and a carriage return (enter). The unit will echo back
"PROGRAM SETTING". You are now in the programming
mode.
SETUP PROCEDURE:
The following sections consist of the communications setup
options as they appear in the menu. (If you wish to exit the
program mode, at any time you can hit the "escape key" (Hex
Code: 1B) and the unit will save the changes made but not
effect the remaining data values.) When each section of the
setup menu is displayed, the current data will appear in the <
> signs. If you wish to change the data, type in the number
of the desired choice and press return (enter). If you wish to
keep the current data, simply press return.
DEVICE NUMBER:
Each unit in the hook-up must be assigned it's own device
number (1 to 99). Zero is reserved for a dedicated hook-up to
only one terminal, and it's transmit output line remains in an
"on" active state. The device number is entered in the
program mode. The unit will prompt you:
DEVICE# <XX>?
If XX is the desired device number press return (enter), if not
enter the desired number after the question mark and press
return (enter).
BAUD RATE:
The baud rate is the speed at which data is transmitted,
expressed in bits per second. Baud rates of 300, 600, 1200,
2400, 4800 or 9600 are available. When in the baud rate
section of the menu, the unit will list :
BAUD RATES:
1:300 2:600 3:1200
4:2400 5:4800 6:9600
then prompt you:
BAUD RATE <300>?
Press return (enter) if this is the desired baud rate or enter the
assigned number of one of the six possible baud rates. If an
invalid baud rate is entered the unit will prompt you to choose
another baud rate. This will occur until a valid baud rate is
entered or escape is pressed.
PARITY:
Parity is a bit of information that is inserted before the stop bit
and is used to help check if the transmission is correct. When
setting the parity you may select "ODD" (parity bit is logic 0 if
total number of logic 1's in the first seven data bits is odd),
"EVEN" (parity bit is logic 0 if total number of logic 1's in the first
seven data bits is even), "MARK" (parity bit is always logic 1
- High / Mark) or "SPACE" (parity bit is always logic 0 - Low /
Space). If a "MARK" parity is chosen, it will appear that two
stop bits are used. Use the "MARK" parity with terminals using
parity "OFF" or "NONE". These terminals ignore the parity.
The unit does not check the parity but does transmit the parity
chosen. When setting the parity, the unit will print:
PARITIES:
MARK-0 SPACE-1 EVEN-2 ODD-3
Then the unit will prompt you:
PARITY<MARK>?
If this is the desired parity press return (enter), if it isn't enter
the number of the desired parity then press return (enter).
STROBE LIST:
The serial interface card is also equipped with a strobe line.
When the strobe line is triggered, a chosen set of data will be
transmitted to be displayed or printed. The selections for the
display list are entered in the program mode. Enter "1" to add
selections to the list and enter "0" to delete selections from the
list. The seven available items for the strobe display list are:
(1) Count B, (2) Count C, (3) Rate B, (4) Rate C, (5) Rate A,
(6) Count A, (7) Reset A. If “Reset A” selected, the A counter
is reset after other selected data is sent. This can be used to
Print/Reset at preset by connecting Relay to strobe and +DC.
Select “Reset All” and jumper strobe to pin 9 to reset both
counters after print. NOTE: Due to cycle time of 2 sec @ 300
baud (0.4 sec @ 9600 baud), counts may be lost if received
while cycling)
When setting the strobe list the unit will print :
ENTER STROBE LIST:
DO NOT DISPLAY-0 DISPLAY-1
The unit will prompt you:
COUNT B<DISPLAY>?
COUNT C<DISPLAY>?
RATE B<DISPLAY>?
RATE C<DISPLAY>?
RATE A<DISPLAY>?
COUNT A<DISPLAY>?
RESET A<DISPLAY>? (If selected, Resets Count A at end of
selections)
If the above choices are entered, when the strobe line is
triggered (3-30V positive pulse) the unit will transmit:
DEVICE# 1:
DB XXXXX
DCXXXXX
EBXXXXX
ECXXXXX
EAXXXXXX
DAXXXXXX
RA
(SEE COMMANDS BELOW FOR DESCRIPTION OF COMMAND CODES).
Each time the strobe line gets triggered the unit will transmit
this data unless the program mode is entered and the strobe
list altered.
After these four items have been entered they will remain
unaltered unless the program mode is entered again and the
values changed. The unit is now set and must be addressed
by it's device number to come on line again.
20
SERIAL INPUT COMMANDS:
To get a unit on line you must address it by it's device number.
This is done by typing DXX(S), XX= device number. The unit
comes on line and echoes back DEVICE# XX. Insure that
"DEVICE# XX:" is received before requests are sent. The unit
is now ready to receive a command or string of commands
separated by a space. A carriage return (enter) will enter the
commands and processing of requests begins. The carriage
return (Hex Code "D") puts the unit "off line" after data is
processed.
COMMANDS:
EP...........Unit will enter program mode.
DA..........Unit will display (transmit) Count A.
DB..........Unit will display (transmit) Count B.
DC..........Unit will display (transmit) Count C.
EA..........Unit will display (transmit) Rate A.
EB..........Unit will display (transmit) Rate B.
EC..........Unit will display (transmit) Rate C.
KA..........Unit will display K-factor A.
†*KA(S)XXXXX....Unit will load K-factor A
with entered number.
KB..........Unit will display K-factor B
†*KB(S)XXXXX....Unit will load K-factor B
with entered number.
PA...........Unit will display Preset A.
†PA(S)XXXXX....Unit will load Preset A with
entered number.
PB...........Unit will display Preset B
†PB(S)XXXXX....Unit will load Preset B with
entered number.
RA..........Reset Counter A and output
†*RA(S)XXXXXX...Unit will set Counter A to
entered number.
RB..........Reset Counter B and output
†*RB(S)XXXXXX...Unit will reset Counter B to
entered number.
*THE UNIT WILL RECOGNIZE A DECIMAL IF ONE IS
PLACED IN ANY OF THESE DATA VALUES.
The input impedance of RS232 is 3KΩ to 7KΩ worst case. The
terminal addressing the unit must be capable of driving all
loads in the loop. The input impedance of RS422 is much
higher and there should be no problem driving as many as 99
units. The transmit line remains in a high impedance "off"
state until addressed. Only one unit is to be on line at a time!!!
More than one unit on line could damage the unit or destroy
the transmitted data.
When the unit is active (on line) it will operate in a full duplex,
echo back mode, so that data sent from the terminal will be
transmitted back for verification. When the unit is "on line",
use the proper serial transmit commands to request data or
set a new value. Up to 80 characters of data can be linked
together and transmitted to the unit in a string as long as there
is a space between the commands. If an error is made, a
correction can be made by back spacing and retyping correct
data before the return (enter) is sent. Once a return (enter) is
sent, the unit begins processing the data and will transmit the
requested data on a non-priority basis over the data transmit
line. A keypad entry or incoming data will halt the data
communication cycle. Therefore, there should be a pause
after data is requested to insure that all data has been
transmitted before making another request or addressing
another unit. If the unit is not busy, it should not take longer
than 300 msec to process each request. To find the cycle time
to process and transmit a request, calculate the bit transmit
time by using this formula: [(1÷ baud rate) x (80) + .005] x
number of requests made. This time will be extended if the
unit must service the front keypad. If transmission has not
started within two seconds after data is requested, it can be
assumed that there is a problem. The unit transmits a carriage
return and line feed after each data value. Any new communication must be started with DXX(S) (device number and
space).
RS232/RS422 - IBM-PC INTERFACE:
The following program is for IBM basic to set up RS232/RS422
on serial port (#1) at 300 baud. Run this program after
connecting the serial interface connections.
†THE UNIT WILL ONLY RECOGNIZE THE LAST FIVE
DIGITS ENTERED (SIX DIGITS FOR RA & RB).
The following is an example of requests and responses:
Transmit from terminal Receive from unit
(s)=Space
D5(s) [Unit #5 Activated]DEVICE# 5:
PA(s)12345(s)PAPA 12345 PA
KA(s)1576(s)KAKA 1576 KA
KB(s)6751(s)KBKB 6751 KB
RA(s)RB[RETURN]RA RB
(UNIT PRESETS AND A & B K-FACTORS ARE SET AND
BOTH COUNTERS ARE RESET)
12345
1576
6751
SERIAL INTERFACE OPERATION:
Data is received and transmitted over standard EIA RS232 or
RS422 levels. Each ten bit character is made up of a start bit,
seven bit ASCII code, a parity bit and a stop bit. Device
number, baud rate, parity and strobe list are entered in the
program setup mode and will remain in memory even if power
is lost.
10 SCREEN 0,0:WIDTH 80
20 CLS:CLOSE
30 OPEN "COM1:300,n,7,1,CS,DS,CD" AS #1
40 ON ERROR GOTO 110
50 B$=INKEY$
60 IF B$< >"" THEN PRINT #1,B$;
70 IF EOF (1) THEN 50
80 A$=INPUT$ (LOC(1),#1)
90 PRINT A$;
100 GOTO 50
110 RESUME
21
RS232 / RS422 WIRING
234
5
678
9
COMPUTER HOOKUP:
RS 232: When connecting the unit to a computer with RS 232
communication, only three connections are needed. These
connections are: Receive data, Transmit data and Ground.
The connections should be made as follows:
DP -9 CONNECTORCOMPUTER
Transmit data (pin 2)Receive data
Receive data (pin 3)Transmit data
Ground (pin 5)Ground
RS 422: When connecting the unit to a computer with RS 422,
five connections are needed. These connections are: Receive data A (+), Receive data B (-), Transmit data A (+),
Transmit data B (-) and Ground. The connections should be
made as follows:
DP -9 CONNECTORCOMPUTER
Transmit data A(+) (pin 2Receive data A(+)
Transmit data B(-) (pin 7)Receive data B(-)
Receive data A(+) (pin 3)Transmit data A(+)
Receive data B(-) (pin 8)Transmit data B(-)
Ground (pin 5)Ground
When connecting the unit to a printer, you must first program
the desired baud rate, parity and strobe list with a computer.
After the unit is programmed it can be connected to the printer.
Connect the transmit line(s) of the unit to the receive line(s) of
RST
B C
A
ENTER LOCK PRE A PRE B VIEW PRGM
the printer and be sure that both devices have common
grounds. When the strobe line is triggered the unit will transmit
the selected strobe list which you had previously programmed.
RST
B C
A
ENTER LOCK PRE A PRE B VIEW PRGM
22
STROBE PIN (6)
+12V PIN (7)
(BOTTOM BOARD)
TRANSMIT PIN (2)
D E
GROUND PIN (5)
STROBE PIN (6)
+12V PIN (7)
(BOTTOM BOARD)
TRANSMIT A (+) PIN (2)
D E
TRANSMIT B (-) PIN (7)
GROUND PIN (5)
RS 422
TROUBLESHOOTING GUIDE
PROBLEMSOLUTIONSPOSSIBLE CAUSES
Power is applied to unit but the display
does not light.
Unit works, but occasionally the display
freezes or skips counts.
Input signal is connected but the unit
does not count or display rate.
Rate is displaying: r FFFFF.
1. AC or DC power wiring is incorrect.
1. Line noise is affecting the processor
due to a current spike or surge.
1. Input wiring is incorrect.
2. Scale factors are incorrect.
3. Transmitting device is defective.
4. Wrong debounce filtering selected.
1. The unit is trying to display a
number which it can't (too small or
too large).
2. Line noise affected unit on power
up.
1. Recheck power wiring
1. Use a different power supply or
install a surge suppressor.
1. Recheck input wiring.
2. Recheck scale factors and factor
calculations.
3. Replace transmitting device.
4. Recheck debounce filtering selection
"hi cps" or "lo cps".
5. To confirm set scale factors at one
and connect a wire to pin #7 and
touch it to pin # 5 (input A). Each
time pin #5 is touched counter A
should count once. If not, call
factory for RMA. (this test will not
work on units with quadrature input)
1. Check scaling factor, if it is correct,
lower the number of significant
figures.
2. Reprogram the unit and be sure to
enter a decimal (enter one and re
move it if a decimal is not desired).
Relays are not activating properly.
Counter resets before reaching 999999.
1. Wrong relay duration.
2. Relay set for wrong activation
i.e. count instead of rate.
1. Relay duration is set at a value other
than 00.0. This causes the counter
to auto-reset at the preset.
1. Recheck programmed relay duration.
2. Recheck programmed relay
activation mode.
1. If relay outputs are not being used,
set the relays for rate.
2. Set the relay durations to 00.0.
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