Kessler-Ellis Products INTELLECT-69PM2 Manual

INTELLECT-69PM2
PROCESS MONITOR
INSTALLATION & OPERATING INSTRUCTIONS
MODELS
INT-69PM2
99319 12/19/00
KESSLER-ELLIS PRODUCTS CO.
10 Industrial Way East
Eatontown, NJ 07724
Telephone: [phone]
Toll Free: [phone]
Fax: [phone]
http://www.kep.com

Proprietary Notice
Theinformationcontainedinthispublicationisderivedinpartfromproprietaryandpatentdata.
This information has been prepared for the expressed purpose of assisting operating and
maintenance personnel in the efficient use of the instrument described herein. Publication of
thisinformationdoesnotconveyanyrightstouseorreproduceitortouseforanypurposeother
thaninconnectionwiththeinstallation,operationandmaintenanceoftheequipmentdescribed
herein.
Copyright 1990
Printed in USA. All Rights Reserved.
WARNING!
This instrument contains electronic components that are susceptible to damage by static
electricity. Properhandling* proceduresmustbeobservedduringtheremoval,installation,or
handling of internal circuit boards or devices.
*Handling Procedure
1. Power to unit must be removed.
2. Personnel must be grounded, via wrist strap or other safe, suitable means, before any
printed circuit board or other internal device is installed, removed or adjusted.
3. Printedcircuitboardsmustbetransportedinaconductivebagorotherconductivecontainer.
Boardsmustnot beremovedfromprotectiveenclosureuntil theimmediatetimeofinstallation.
Removedboards must beplaced immediately inprotective container fortransport, storage, or
return to factory.
Comments
This instrument is not unique in its content of ESD (electrostatic discharge) sensitive
components. Most modern electronic designs contain components that utilize metal oxide
technology (NMOS, CMOS, etc.). Experience has proven that even small amounts of static
electricity can damage or destroy these devices. Damaged components, even though they
appear to function properly, may exhibit early failure.
!

TABLE OF CONTENTS
SAFETY INSTRUCTIONS ................................................................... 1
DESCRIPTION & SPECIFICATIONS................................................... 2
MOUNTING.......................................................................................... 3
WIRING................................................................................................ 4
DEFINITIONS ...................................................................................... 5
FRONT PANEL OPERATIONS ............................................................ 7
PROGRAMMING FLOWCHART.......................................................... 7
PROGRAMMING ................................................................................. 8
SETTING PRESETS & PANEL LOCK ................................................. 11
RS232 / RS422 OPERATIONS............................................................ 12
RS232 / RS422 WIRING...................................................................... 16
TROUBLESHOOTING GUIDE............................................................. 17
DECODING PART NUMBER
WARRANTY

THIS PAGE IS BLANK

1
!
SAFETY INSTRUCTIONS
The following instructions must be observed.
• This instrument was designed and is checked in accordance with regulations in force
EN 60950 (“Safety of information technology equipment, including electrical business
equipment”).
A hazardous situation may occur if this instrument is not used for its intended purpose
or is used incorrectly. Please note operating instructions provided in this manual.
• The instrument must be installed, operated and maintained by personnel who have
been properly trained. Personnel must read and understand this manual prior to
installation and operation of the instrument.
• The us of an external line fuse is recommended. Add or replace the external fuse with
the following specified type and rating only:
Input Power Recommended Fuse
115 VAC 100 mA slow blow fuse
230 VAC 50 mA slow blow fuse
12-24 VDC 250 mA slow blow fuse
Disconnect power supply before adding or replacing fuse!
• The manufacturer assumes no liability for damage caused by incorrect use of the
instrument or for modifications or changes made to the instrument.
Symbols Used On Unit
Number Symbol Publication Description
1IEC 417, No. 5031 Direct current
2IEC 417, No. 5172 Equipment protected throughout by
DOUBLE INSULATION or REINFORCED
INSULATION (equivalent to Class II of IEC
536–see annex H)
3
!
ISO 3864, No. B.3.1 Caution (refer to accompanying documents)
Technical Improvements
• The manufacturer reserves the right to modify technical data without prior notice.

2
DESCRIPTION & SPECIFICATIONS
Description:
Featuring 6 digits of bright, 7-segment LED dis-
plays, this unit is a process monitor which accepts analog
signal inputs. The unit can be field programmed to accept 4-
20mA, 0-5V, 0-10V or 1-5V signals. Two assignable set
points are standard for dual alarms. The high and low
scaling settings are programmable from the front panel. By
pressing the "view" button, the unit will display: process
status, peak or valley. RS232 or RS422 are available op-
tions for data communications with a host computer or
printer.
Specifications:
Display
6 digit, .55" high, 7 segment, red orange, LED.
Input Power: 110, 220 VAC ±15% or 15 to 24VDC.
Current: maximum 300 mA DC or 10.0 VA at rated AC
voltage.
Output Power: (AC powered units only) + 24VDC @ 50mA
regulated ±5%
Temperature:
Operating:+41°F (5°C) to +130°F (+54°C).
Storage:-40°F (-40°C) to +200°F (93°C).
Memory: EEPROM stores data for ten years if power is lost.
Reset:
Front Panel: Resets displayed values and control outputs.
Remote: Not used
Control Outputs:
STANDARD: Open collector, sinks 250mA from 30VDC
when active.
OPTIONAL: Relays, 2 each Form C SPDT 10Amp @ 120/
240 VAC or 28 VDC. (Open collector outputs are also sup-
plied with 10VDC provided at transistor outputs through
relay coil. If greater than 2mA is used, relay will remain
energized. Applying greater than 10 VDC may destroy unit.
Transistor will sink 100mA in "ON" state.)
Input:
Linear 4-20mA, 0-5V, 0-10V or 1-5V selectable from the
front panel.
Input Impedance:
Current: 100Ω.
Voltage: 115KΩ
Calibration:The unit does all of the calibrations internally.
There are no potentiometers to adjust and the unit never
needs to be removed from the case.
Set Points: Two control set points are provided. The unit
comes standard with two open collector control outputs.
Two 10 amp, Form C relays are optional. The outputs have
a programmable hysteresis (alarm range) from 0 to 59999
Process Display: Updates 4 times per second, Accurate to
4.5 digits. Set "lo" higher than "hi" for inverted display.
Analog Out: The unit can be ordered with an optional 4-
20mA output which is proportional to the display. The high
and low settings are programmable from the front panel. A
sinking driver generates a corresponding linear current
through the external devices. The output updates with each
update of the rate. Accuracy is 50uA worst case. Compli-
ance voltage must be 3 to 30 VDC non inductive. (The unit
can provide the DC source as long as the drop across the
devices being driven does not exceed 21V).
Programming: Decimal points, Scaling from -9999 to
49999, set points, input type and the security lock code are
all programmable from the front panel.
Housing: Standard 1/8 DIN, high impact ABS plastic case
(NEMA4X / IP65 front panel).
Shipping Weight: 2 lbs.
Overvoltage Protection:
50 V
Overcurrent Protection:
50 mA
Resolution: 14.5 Bits
Accuracy:
.1%
(5V inputs = .16%)
Temperature Stability: Will not drift more than 20 parts
per million per °C from 5°C to 55°C

3
4.437
(112.7)
2.625
(66.68)
3.925
(99.7)
3.622
(92)
1.772
(45)
.587 4.245
(107.8)
BEZEL
GASKET
CUSTOMER PANEL
Panel Thickness 0.062" (1.5)
to 0.187" (4.7) max.
FIG. A
MOUNTING
HOW TO MOUNT:
Slidethebodyoftheunitthroughtherubbergasket.
Insert the unit into the panel. Slide the brackets up
thegroovetopressagainstthebackofthepanel,as
shown in "FIG. A". Insert the screws into the rear
of the brackets.
Tightenthescrewsevenlyandalternately. Apanel
less than .1" may distort if the clamps are screwed
too tightly. Do not over tighten! A normal level of
torque is required. Maximum torque should be 3"
pounds.

4
AC / DC CONNECTIONS:
NOTE:Connectpoweronlyafterotherconnections
are finished. Do not touch the live AC power
terminals. The unit has been designed with an
isolatedACinput,thereforepolarityisnotaconcern
for the AC power. The chasis is plastic, therefore
earth ground is not used. For DC operation, con-
nect +DC to terminal 10 and -DC to terminal 3.
Although the unit is designed to be immune from
line or RF interference, the unit is controlled by a
microprocessor and an electrically "noisy" environ-
ment could cause operating problems. The input
power lines should not be common to power lines
for motors, pumps, contactors, etc.
Four sources of noise can occur:
1) AC power line noise- If the unit cannot be con-
nected to an electrically clean power source, an
inductive load supressing device (MOV as
GE#V130LA1 or Resistor Capacitor as Paktron#
.2uf/220 ohm @ 400V) can be installed. Although
locatingthesuppressoracrosstheACsupplyatthe
unit should help, best results are obtained by
connecting the suppressor across the leads of the
"load" at the device causing the spikes.
2)Inputline noise- The noiseis carried on theinput
andDCgroundlines. Makesuretheinputwiresare
not run into the unit in a bundle with power input
lines. We recommend using shielded cable. Con-
nect the shield to DC ground of the unit and "earth"
at one point in the circuit preferably at the DC
ground terminal of the unit.
3) Output lines- The unit has two open collector
outputsandtwooptionalrelayoutputs. Whenthese
outputsareusedtorunexternalrelaysorsolenoids,
spikes can be generated upon activation. This
noise can spread through the instrument causing
operatingproblems. IfthesourceisaD.C.operated
device, a general purpose diode (IN4004) placed
acrossthesolenoidpreventselectricalnoisespikes.
Connect the cathode (banded side) to the more
positive side of the coil. If the source is an A.C.
operated device, use a Resistor Capacitor or MOV
across the coil.
4) 24 VDC output supply- Noise can be generated
on the 24 VDC output supply if it is used to drive
inductive loads or if the current draw exceeds
50mA. Insure that all inductive loads have a diode
(suchasIN4004)acrossthecoilandthatthecurrent
does not exceed 50mA.
WIRING CONNECTIONS
WIRING
REAR VIEW
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18
RESET IN
ANALOG OUT (SINK)
SIGNAL GND (-DC)
(CURRENT) +I IN
(VOLTAGE) +V IN
NOT USED
+24V OUT
PRESET B COLLECTOR
PRESET A COLLECTOR
+D.C. IN
110 / 220 VAC
110 / 220 VAC
10
11
12
1
2
3
4
5
6
7
8
9
RELAY B
RELAY
A
13
14
15
16
17
18
COMMON
N.C.
N.O.
COMMON
N.C.
N.O.
NOT USED

5
DEFINITIONS
INPUT - INPUT; This section of the program menu assigns the type of input the unit will be using (4-20 mA, 0-5 V, 0-10 V,
1-5 V, Linear or square root extraction).
I 4-20 - I 4-20; This sets the unit for a current input of 4 to 20 mA.
E 1-5 - E 1-5; This sets the unit for a voltage input of 1 to 5 volts.
E 0-5 - E 0-5; This sets the unit for a voltage input of 0 to 5 volts.
E 0-10 - E 0-10; This sets the unit for a voltage input of 0 to 10 volts. (0-20 mA input is available using this setting and the
current (I) input pin 4)
RELAYS - RELAYS; This section of the program menu sets the control output variables (relays & open collector).
HYS A - HYSTERESIS FOR OUTPUT A; This value is the number of units below Preset A that the output will remain "ON".
EXAMPLE: Preset A set at 100, Hys set at 10. Output A will activate (turn on) when the rate equals 100; Output
A will deactivate (turn off) when the rate falls below 90 (10 below Preset A)
HYS B - HYSTERESIS FOR OUTPUT B; Same as HYS A.
LOC - LOCK; This section of the program menu sets up the lockout type and code. (to lock or unlock, press the "A" key
when in run mode. see pg.10)
LC ALL - LOCK ALL; When this is selected the lockout will lock the program as well as the Presets and reset button. The
presets can be viewed but not changed.
LC PG - LOCK PROGRAM; When this is selected the lockout will lock only the program. The Reset can be activated and
the presets can be viewed and changed.
CODE - CODE; This is a 5-digit code which will be used to lock and unlock the front panel.
SETUP - SETUP; This section of the program menu sets up the operating variables.
DECLOC - DECIMAL LOCATION; This allows the user to program a decimal point.
SET LO - SET LOW; This is the display value (-9999 to 49999) for the lowest input (0 or 1 Volts; 4 mA).
(i.e. 4 mA = -10 °)
SET HI - SET HIGH; This is the display value (-9999 to 49999) for the highest input (5 or 10 Volts; 20 mA). (i.e. 20 mA =
100 °)
LO CUT - LOW CUT-OFF; This is the lowest display value (-9999 to 49999) to be recognized. All readings below this
value will assume the "set lo" value, even if the "set lo" is higher than the "set hi" value..
NOR - NORMALIZING FACTOR; This is an averaging factor (00.0 to 99.9). Higher settings provide more normalizing
(averaging) for a more stable display. Derived from the equation:
(OLD DATA x "NOR" + NEW DATA)
("NOR" + 1)
opt - OPTIONS; This section of the program menu is for setting up optional features (analog out, RS232/422 serial
communications).
out lo - OUT LOW; The displayed value (-9999 to 49999) at which the unit will output 4 mA (-10°= 4 mA out).

6
out hi - OUT HIGH; The displayed value (-9999 to 49999) at which the unit will output 20 mA (100°= 20 mA out).
BAUD - BAUD RATE; The baud rate at which the RS232 or RS422 communications will operate.
9600 - 9600 BAUD; This sets the communications at 9600 Baud.
2400 - 2400 BAUD; This sets the communications at 2400 Baud.
1200 - 1200 BAUD; This sets the communications at 1200 Baud.
300 - 300 BAUD; This sets the communications at 300 Baud.
UNIT - UNIT NUMBER; This assigns the unit an ID number from 1 to 99. This number is to be addressed when the unit is
to be on line. A unit with 0 assigned will never come on line.
P LIST - PRINT LIST; This sets a list of data that will be transmitted whenever the strobe is activated.
RATE - RATE; When this is added to the print list, the unit will transmit the present process value when the strobe is
activated.
PEAK - PEAK; When this is added to the print list, the unit will transmit the present peak value when the strobe is acti-
vated.
UALLEY - VALLEY; When this is added to the print list, the unit will transmit the present valley value when the strobe is
activated.
PRE A - PRESET A; When this is added to the print list, the unit will transmit the Preset A value when the strobe is acti-
vated.
PRE B - PRESET B; When this is added to the print list, the unit will transmit the Preset B value when the strobe is acti-
vated.
END - END; This is the only exit from the P List. If END is not entered the unit will start at the beginning of the P List again.
P ##### - P; This will appear in the 6th (furthest to the left) digit when viewing the Peak. The peak value is the highest
reading that the unit had displayed since the peak had been reset. The peak is not retained in memory when
power is lost.
U ##### - U; This will appear in the 6th (furthest to the left) digit when viewing the Valley. The valley value is the lowest
reading that the unit had displayed since the valley had been reset. The valley is not retained in memory when
power is lost.

7
FRONT PANEL OPERATIONS
A B C D E
RST
ENTER LOCK PRE A PRE B VIEW PRGM
Press to RESET
in operating
mode; Press to
"ENTER" in
programming
mode.
Press once to
freeze display.
Press any key to
update display
normally.
Press rapidly
(about 4 times
within 5 seconds)
to "enter" LOCK
code for panel
lock.
Press to view or
change Preset A Press to view or change Preset B Press to alter- nately view
Process Status,
Peak & Valley.
Press to cycle
through PRO-
GRAM choices;
Press to step
through set up
choices in
program mode.
iNPUT
i 4-20
E 0-5
E 1-5
E 0-10
RUN MODE
RELAYS
HYS A
HYS B
XXXXX
RUN MODE
LOC
LC ALL LC PG
CODE
RUN MODE
SETUP
DECLOC
SET LO
SET Hi
LO CUT
NOR XX.X
RUN MODE
OPT
OUT LO
OUT Hi
BAUD
UNiT XX
P LiST
RATE
PEAC
UALLY
PRE A
PRE B
END
RUN MODE
PRESS
"ENTER"
TO ADD
ITEM TO
PRINT
LIST
PRESS
"PRGM"
TO
ADVANCE
TO NEXT
SELECTION
300
1200
2400
9600
PRGM
ENTER
ENTER
PRGM
PRGM
ENTER
ENTER
ENTER
PRGM
ENTER
PRGM
ENTER
ENTER
PRGM
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
ENTER
PRGM
ENTER
ENTER
ENTERPRGM
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
XXXXX
PROGRAMMING FLOWCHART

8
Thissection of the menu is used to set
up the lockout type and code.
LC PG = Locks program but presets
are accessable.
LC ALL= Locks program & presets.
Press the PRGM button to toggle be-
tween choices; Press RST/ENTER to
enter displayed choice.
When CODE is displayed, press any
key to view existing lock code. To
change the code press the key under
each digit to be changed. Press RST/
ENTER to enter displayed value.
INPUT
RELAYS
LOC
LC PG or LC ALL
CODE
Press any key to view
or change the lock
code
PRGM
PRGM
PRGM
ENTER
ENTER
INPUT
RELAYS
HYS A
(hit any key to view or
change existing HyS A
value XXXXX)
HYS B
PRGM
PRGM
ENTER
This section of the menu sets up the
open collector outputs and/or relays.
Hys(hysteresis)=Thenumberofunits
below the preset that the output will
remain "ON". EXAMPLE: Preset set
@ 100; HyS set @ 10. Output will
activate (turn on) when display = 100
andturnoffwhendisplayfallsbelow90
(10 below preset).
Follow instructions for hys A
ENTER
STEP
3
STEP
2
SETTING
LOCK
SETTING
RELAYS
REMARKS
Thissectionofthemenuisusedtoset
up the type of signal the unit will be
receiving.
Press the PRGM key to step through
choices. Press the RST/ENTER key
to enter the displayed choice.
DISPLAY
INPUT
I 4-20, E 1-5,
E 0-5 or E 0-10*
PRESS
* 0-20 mA available by using 0-10 V setting and current (I) input pin 4
PRGM
ENTER
STEP
1
SETTING
INPUT
PROGRAMMING

9
INPUT
RELAYS
LOC
SETUP
DECLOC
SET LO
Press any key to view
or change existing
value
SET HI
Press any key to view
or change existing
value
LO CUT
Press any key to view
or change existing
value
NOR
Press any key to view
or change existing
value
PRESS DISPLAY REMARKS
Thissectionofthemenuisusedtoset
up important operating variables.
DECLOC=decimallocation;Pressthe
key under the digit with the desired
location. Pressthe"E"keyifadecimal
is not desired. Press RST/ENTER to
enter the displayed location.
SET LO= Display value for the lowest
input(0or 1V; 4mA).(i.e. 4mA =-10 °)
Keyinthedesiredlow valueandpress
RST/ENTERtoenterdisplayedvalue.
To enter a negative value, press the A
buttonuntil the digit passes 4, a nega-
tive sign will appear.
SET HI= Display value for the highest
input (5 or 10V; 20mA).(i.e. 20mA =
100°). Key in the desired high value
and press RST/ENTER to enter dis-
played value. To enter a negative
value,pressthe A button untilthedigit
passes 4, a negative sign will appear.
LO CUT= Low cut-off; Lowest display
value to be recognized. All readings
below the "cutoff" will assume the "set
lo"value. Keyinthedesiredvalueand
press RST/ENTER to enter displayed
value. To enter a negative value,
presstheAbuttonuntilthedigitpasses
4, a negative sign will appear.
NOR= Normalizing (averaging) factor
(00.0to99.9);Keyinthedesiredvalue
and press RST/ENTER to enter dis-
played value. Higher settings provide
more normalizing (averaging) for a
more stable display.
PRGM
PRGM
PRGM
PRGM
ENTER
ENTER
ENTER
ENTER
ENTER
STEP
4
SETTING
SETUP

10
This section of the menu is for setting up the
variablesfor anyoptionswhich wereordered
(Analog out or Serial communications).
OUTLO=Theratevaluetoberepresentedby
the 4 mA end of the 4-20 mA output. Key in
the desired value and press RST/ENTER to
enter displayed value. To enter a negative
value,presstheAbuttonuntilthedigitpasses
4, a negative sign will appear.
OUTHI=Theratevaluetoberepresentedby
the 20 mA end of the 4-20 mA output. Key in
the desired value and press RST/ENTER to
enter displayed value. To enter a negative
value,presstheAbuttonuntilthedigitpasses
4, a negative sign will appear.
BAUD = Baud rate for RS 232 or RS 422
communications option. Press any key to
view existing value.
Press the PRGM key to view available baud
rates; Press RST/ENTER to enter displayed
value.
UNIT= Unit IDnumber. ThisID number(1to
99) must be addressed to bring the unit "on
line". If the unit number is set at 00, the unit
cannotbeaddressed. Keyinthedesiredunit
number and press RST/ENTER to enter dis-
played value.
PLIST=Printlist. Thisisalistofitemswhich
theunitwilltransmitwheneverthestrobeline
is activated.
PressRST/ENTERtoadditemsto list;Press
PRGM to remove items from list.
RATE = Rate
PEAC = Peak
UALLY = Valley
PRE A = Preset A
PRE B = Preset B
END = Press RST/ENTER to exit (end) print
list; Press PRGM to recycle through list
choices.
PRGM
PRGM
PRGM
PRGM
PRGM
ENTER
PRESS DISPLAY REMARKS
ENTER
ENTER
ENTER
ENTER
PRGM
ENTER
or
INPUT
RELAYS
LoC
SETUP
oPT
oUT Lo
Press any key to view or
change existing value
oUT HI
Press any key to view or
change existing value
BAUD
Press any key to view or
change existing value
9600, 1200,
2400 or 300
UNIT
Press any key to view or
change existing value
P LIST
Press any key to enter print
list
RATE
PEAK
UALLY
PRE A
PRE B
END
STEP
5
SETTING
OPTIONS

11
REMARKS
DISPLAYPRESS
SETTING THE PRESETS & PANEL LOCK
SETTING
THE
PRESETS
PRE A
Press any key to view
or change existing
value
PRE B
Press any key to view
or change existing
value
CoDE
Press any key to enter
the 5-digit lock code.
LoC
or
UN LoC
PRE A = Preset A (Final Preset); The
set point at which output A will trigger.
If the displayed value is not the de-
sired preset, press the key(s) under
the digit to be changed. To enter a
negativevalue,presstheAbuttonuntil
the digit passes 4, a negative sign will
appear.
PRE B = Preset B (Prewarn); The set
point at which output B will trigger. If
the displayed value is not the desired
preset,pressthekey(s)underthedigit
to be changed. To enter a negative
value,pressthe A button untilthedigit
passes 4, a negative sign will appear.
Key in the lock code (see program-
ming step 3) by pressing the keys
under the digits to be changed. Each
time a key is pressed the digit will
increment one. Press the RST/EN-
TER key to enter the displayed code.
After the code is entered the unit will
displayLOC(unitislocked)orUNLOC
(unit is un-locked). This message will
be displayed for approximately 3 sec-
onds before the unit returns to the run
mode. Ifaninvalidcodeisentered,no
message is displayed; try again.
PRE A
PRE B
SETTING
THE
LOCK
STATUS
LOCK
LOCK
LOCK
LOCK
Press LOCK 4 or 5 times within 5 seconds
(If LOCK is pressed once, unit freezes display)
ENTER

12
This section applies to units which have the
serialcommunicationsinterfaceoption. Upto
99 units can be linked together. Unit status
can be accessed and many menu items can
be entered through the serial port. Data is
transmittedatselectedbaud rates using stan-
dardeight bitASCIIcharactersandone“stop”
bit. Theunitdoesnotcheckortransmitaparity
bit.
UNIT I.D. (DEVICE #)
Each unit in the hookup must be assigned a
unitnumberfrom 1 to99. Thiscanbeentered
through the front panel (see step 5 of the
programmingsection). If “00”isassigned,the
unit can not be brought on line through the
serialport. Theunitswillremaininan“off”high
impedance state until addressed by the as-
signedunitnumber. Onceaunitisaddressed,
donotaddresssanotherunituntilthedatahas
been sent and any data requested has been
transmitted back.
BAUD RATE
The baud rate is the speed at which data is
transmitted, expressed in bits per second.
Baud rates of 300, 1200, 2400 or 9600 are
available. Select the desired baud rate from
the menu. (see step 5 of the programming
section).
PRINT LIST
The serial interface card is equipped with a
strobe line. When the strobe line is activated
a user selectable set of data (print list) is
transmitted. This transmission can be sent to
acomputerorprinter. Theprintlistconsistsof
eightselectableitems:COUNT,RATE,PEAK,
VALLEY, PRE A, PRE B, LOW SET, HIGH
SET. Thelistcanbeenteredthroughthefront
panel(seestep5oftheprogrammingsection)
or through the serial port (read on).
HELP
A help command has been installed for easy
access of the command and data variables.
When help is needed, type a “?”and press
return (enter) whenever a unit is on line. The
following list will be transmitted:
D#XX:[S] Set
[E] Examine
[R] Reset
[L]*List
[C]*Count
[R]*Rate
[P]*Peak
[V]*Valley
[A]*Pre A
[B]*Pre B
[L]*Low Set
[H]*High Set
[J] Low Out
[K] High Out
[N] Norm
[D] Unit #
[E] Input
[G] Hy/Dr A
[I] Hy/Dr B
[M] Time
[T] Baud
[W] Lock
[X] Meter
[Y] A Type
[Z] B Type
[O] Code
[F] Decimal
TheunittransmitstheunitID(D#XX)aswellas
thevariablesforthecorrespondingcommands
and data. A “*”indicates that the data is
available for the print list.
RS 232/422 OPERATIONS

13
COMMANDS:
Each command consists of an instruction and an
address. Each instruction and address is repre-
sented by a letter. The prefix of each command
mustbe an instructionfollowed by anaddress (and
address variable if applicable). Note: These com-
mands are for general purpose units. Disregard
commands and data not relevant to this process
monitor.
INSTRUCTIONS (1st letter of command):
[S] Set - Used to set the value or operating param-
eter of an address. (i.e. “SC 5000”will set the
count at 5000)
[E] Examine - Used to examine the value or status
of an address. (i.e. “ER”will examine the
present rate reading)
[L]*List - Used to set the print list. (i.e. “LCRVA”
will set the list for count, rate, valley and preset
A. These values will be transmitted whenever
the strobe is activated.)
ADDRESSES (2nd letter of command):
[C]*Count
[R]*Rate
[P]*Peak
[V]*Valley
[A]*Pre A
[B]*Pre B
[L]*Low Set
[H]*High Set
[J] Low Out
[K] High Out
[N] Norm
[D] Unit #
[E] Input
[G] H/D A
[I] H/D B
[M] Time
[T] Baud
[W] Lock
[X] Meter
[Y] A Type
[Z] B Type
[O] Code
[F] Decimal
POSSIBLE COMMANDS:
Each command must be followed by a carriage
return for execution.
DXX: (device “unit ID”#)- Unit XX will come “on
line”and stay “on line”until another device is
addressed.
SD XX: (set device “unit ID”#)- sets unit ID # at
requested value
ED:(examine device)- Unit will transmit the present
device (unit ID) number (i.e. d = 000000XX).
SC XXXXXX: (set count)- Sets count at requested
value.
EC: (examine count)- Unit will transmit the present
count value ( i.e. c=00XXXXXX).
RC: (reset count)- Resets the counter, the control
output will not be reset. (If this feature is needed,
consult factory).
ER: (examine rate)- Unit will transmit the present
rate value (i.e. r= 000XXXXX).
RR: (reset rate)- Resets the normalization
EP: (examine peak)- Unit will transmit the present
peak value (i.e. p= 000XXXXX).
RP: (reset peak)- Unit will reset the peak.
EV: (examine valley)- Unit will transmit the present
valley value (i.e. v=000XXXXX).
RV: (reset valley)- Resets the valley.
SA XXXXX: (set preset A)- Sets preset A at re-
quested value. (-9999 to 49999)
EA: (examine preset A)- Unit will transmit present
preset A value (i.e. a=000XXXXX).
SB XXXXX: (set preset B)- Sets preset B at re-
quested value. (-9999 to 49999)

14
EB:(examineB)-UnitwilltransmitpresentpresetB
value (i.e. b = 000XXXXX).
SLXXXXX:(set“Low”)-Sets“setlow”atrequested
value. (-9999 to 49999)
EL:(examine “Low”)- Unitwilltransmit present “set
low”value (i.e. l = 000XXXXX).
SH XXXXX: (set “High”)- Sets “set high”at re-
quested value. (-9999 to 49999)
EH:(examine“High”)-Unitwilltransmitpresent“set
high”value. (i.e. h = 000XXXXX)
SJ XXXXX: (set “low out”)- Sets “out low”at re-
quested value. Only available with ANALOG
OUT option. (-9999 to 49999)
EJ: (examine “low out”)- Unit will transmit present
“out low”value. (i.e. j = 000XXXXX)
SK XXXXX: (set “high out”)- Sets “out high”at
requested value. Only available with ANALOG
OUT option. (-9999 to 49999)
EK: (examine “high out”)- Unit will transmit present
“out high”value. (i.e. k = 000XXXXX)
SN XX.X: (set norm)- Sets “norm”at requested
value. Must be a 3-digit number with decimal.
EN: (examine norm)- Unit will transmit present
“norm”value (i.e. n = 000XX.X).
SE i 4-20,e 0-5, e 1-5 or e 0-10: (set input)- sets
input to one of the 4 available types. Enter type
exactly as it appears on the display.
EE: (examine input)- Unit will transmit input type
(i.e. e 0-10).
SG XXXXX: (set dur A or hys A)- Sets dur A or hys
Aatrequestedvalue.(durAwhenAisassigned
to total; hys A when A assigned to rate).
EG: (examine dur A or hys A)- Unit will transmit
presentdurAorhysAvalue(i.e.g=000XXXXX)
SI XXXXX: (set dur B or hys B)- Sets dur B or hys
Batrequestedvalue.(durBwhenBisassigned
to total; hys B when B assigned to rate).
EI: (examine dur B or hys B)- Unit will transmit
presentdurBorhysBvalue(i.e.I=000XXXXX)
SMsecs,minsorhours:(settimebase)-Setstime
base to desired setting.
EM:(examinetimebase)-Unitwilltransmitpresent
time base (i.e. secs).
ST XXXX: (set baud)- Sets baud at desired rate
(9600, 2400, 1200 or 300).
ET:(examinebaud)-Unitwilltransmitpresentbaud
rate (i.e. 9600).
SW lc pg or lc all: (set lock type)- Sets lock type at
specified setting.
EW: (examine lock type)- unit will transmit present
lock type (i.e. lc pg).
SXlinearorsqrt:(setmetertype)-Setsmeterinput
forlinearorsqurerootextraction. Onlyavailable
with square law option.
EX:(examinemetertype)-Unitwilltransmitpresent
meter type (i.e. linear).
SY A tot or A rate: ( set A type)- Assigns control
output A to rate or total.
EY: (examine A type)- Unit will transmit present A
type (i.e. a tot).
SZ B tot or B rate: ( set B type)- Assigns control
output B to rate or total.
EZ: (examine B type)- Unit will transmit present B
type (i.e. a tot).
SO XXXXX: (set lock code)- Sets lock code at
requested value.
EO:(examinecode)-Unitwilltransmitpresentcode
(i.e. o=000XXXXX).
SF X: (set decimal location)- Sets decimal at re-
quested location (0 to 4).
EF: (examine decimal location)- Unit will transmit
thepresentdecimallocation(i.e.f=0000000X).
L CRPVABLH: (list)- The list can consist of any
combination of the eight available options. Any
addresss with a "*" next to it can be listed

15
.
SERIAL INTERFACE OPERATION:
DataisreceivedandtransmittedoverstandardEIA
RS232 or RS422 levels. Each ten bit character is
made up of a start bit, eight bit ASCII code and a
stop bit.
TheinputimpedanceofRS232is3KΩto7KΩworst
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.
Thetransmit line remains in ahigh impedance "off"
state until addressed. Only one unit is to be on line
atatime!!! Morethanoneunitonlinecoulddamage
the unit or destroy the transmitted data.
Whentheunitisactive(online)itwilloperateinafull
duplex,echoback mode, sothatdatasentfromthe
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. Ifanerrorismade,acorrectioncanbemade
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
overthedatatransmitline. Theunitwillnottransmit
data if the Printer Busy line is activated (high).
WhenthePrinterBusylineisactivatedalltransmis-
sions are halted until the line goes low or open.
There should be a pause after data is requested to
insure that all data has been transmitted before
makinganotherrequestoraddressinganotherunit.
If transmission has not started within two seconds
afterdataisrequested,itcanbeassumedthatthere
is a problem. The unit transmits a carriage return
and line feed after each data value. The unit will
stay "on line" until another unit is addressed.
RS232/RS422 - PC INTERFACE:
The following BASIC program is for setting up
RS232/RS422onserial port (#1)at300baud. Run
this program after connecting the serial interface
connections.
10 SCREEN 0,0:WIDTH 80
20 CLS:CLOSE
30 OPEN "COM1:300,n,8,1,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

16
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:
DB-9 CONNECTOR COMPUTER
Trans. data A(+) (pin 2) Rec. data A(+)
Trans. data B(-) (pin 7) Rec. data B(-)
Rec. data A(+) (pin 3) Trans. data A(+)
Rec. data B(-) (pin 8) Trans. data B(-)
Ground (pin 5) Ground
TRANSMIT A (+) PIN (2)
GROUND PIN (5)
TRANSMIT B (-)PIN (7)
STROBE PIN (6)
RS 422
PRINTER BUSY PIN (1)
TRANSMIT A(+)PIN (2)
TRANSMIT B(-) PIN (7)
RECEIVE B(-)PIN (8)
RECEIVE A(+)PIN (3)
GROUND PIN (5)
RS 422
RS232 / RS422 WIRING
COMPUTER HOOKUP:
RS 232: When connecting the unit to a computer
with RS 232 communication, only three connec-
tionsareneeded. Theseconnections are: Receive
data,Transmitdata andGround. Theconnections
should be made as follows:
DB-9 CONNECTOR COMPUTER
Transmit data (pin 2) Receive data
Receive data (pin 3) Transmit data
Ground (pin 5) Ground
PRINTER HOOKUP:
When connecting the unit to a printer, you must first
programthedesired baud rate, parity andstrobelistwith
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 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.
TRANSMIT PIN (2)
GROUND PIN (5)
RECEIVE PIN (3)
RS 232
1- Printer busy: 3 to 30 VDC level inhibits transmission.
2- Transmit A(+) (RS422); Transmit (RS232)
3- Receive A(+) (RS422); Receive (RS232)
4- Not Used
5- Ground
6- Strobe: 3 to 30 VDC positive edge starts transmossion.
7-Transmit B(-) (RS422 Only)
8- Receive B(-) (RS422 Only)
9- Not Used
DB - 9 CONNECTOR
12345
6789
RS 232
TRANSMIT PIN (2)
GROUND PIN (5)
STROBE PIN (6)
PRINTER BUSY PIN (1)