PAX2C Manual PDF
Bulletin No. PAX2C-A
Drawing No. LP0890
Effective 09/12
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
MODEL PAX2C – 1/8 DIN TEMPERATURE/PROCESS PID CONTROLLER
 PID CONTROL WITH REDUCED OVERSHOOT
 UNIVERSAL PROCESS, TEMPERATURE, VOLTAGE, CURRENT
AND RESISTANCE INPUT
 PROGRAMMABLE DUAL LINE DISPLAY WITH UNITS
INDICATION AND BAR GRAPH
 FOUR PROGRAMMABLE UNIVERSAL ANNUNCIATORS
 TRI-COLOR DISPLAY, WITH 7 PROGRAMMABLE COLOR ZONES
 UP TO 16 ALARMS WITH BOOLEAN LOGIC FUNCTIONALITY
 BUILT-IN USB PROGRAMMING PORT ENABLING UNIT
CONFIGURATION WITH CRIMSON PROGRAMMING SOFTWARE
 NEMA 4X/IP65 SEALED FRONT BEZEL
DESCRIPTION
programmed to utilize Modbus protocol. With Modbus, the user has access to
most configuration parameters. Readout values, setpoint, process and alarm
values can be controlled through the bus. Additionally, the controller has a
feature that allows a remote computer to directly control the outputs of the
controller.
With a Windows® based program, made available by Red Lion Controls,
configuration data can be downloaded to the PAX2C via a built-in USB
programming port.
The PAX2C Temperature/Process Controller offers many features and
performance capabilities to suit a wide range of applications. The PAX2C has a
universal input to handle various input signals including Temperature, DC
Voltage/Current and Resistance. Optional plug-in cards allow the opportunity to
configure the controller for present applications, while providing easy upgrades
for future needs. The PAX2C employs a tri-color display with seven
independently programmable color zones.
The controller has been specifically designed for harsh industrial environments.
With NEMA 4X/IP65 sealed bezel, CE compliance and extensive testing of
noise effects, the controller provides a tough reliable application solution.
DIMENSIONS In inches (mm)
MAIN CONTROL
The controller operates in the PID Control Mode for both heating and cooling,
with on-demand auto-tune that establishes the tuning constants. The PID tuning
constants may be fine-tuned and then locked out from further modification. The
controller employs a unique overshoot suppression feature, that allows the
quickest response without excessive overshoot. Switching to Manual Mode
provides the operator direct control of the output.
3.80
(96.52)
DISPLAY
The PAX2C features a dual line display with units annunciators, dual bar
graphs, four universal annunciators and tri-color capability. Each of the seven
display zones may be configured independently of the others, providing a visual
indication of control and/or alarm status.
1.95
(49.53)
ALARMS
The PAX2C has up to sixteen “soft” alarms that may be configured to suit a
variety of control and alarm requirements. These alarms may be used to monitor
and/or actuate the controller’s physical outputs as well as change display colors.
Mapped “soft” alarms may be processed independently or logically combined
using AND/OR Boolean logic.
0.10
(2.54)
4.14
(105.16)
Note: To determine dimensions for
horizontal units, swap height and
width. Recommended minimum
clearance (behind the panel) for
mounting clip installation is:
2.1" (53.4) W x 5.5" (140) H.
OPTION CARDS
Optional plug-in cards provide dual FORM-C relays, quad FORM-A, quad
sinking, or quad sourcing open collector logic outputs. These cards can be used
as control outputs or for alarm indication.
A linear DC output signal is available as an optional plug-in card. The card
provides either 20 mA or 10 V signals. The output can be scaled independent of
the input range and can track the input, max and min readings or for control.
Communication and bus capabilities are also available as option cards. These
include RS232, RS485, DeviceNet, and ProfibusDP. The PAX2C can be
3.60
(91.44)
1.75
(44.45)
1
SAFETY SUMMARY
All safety related regulations, local codes and instructions that appear in this
literature or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired. Do not use this unit to directly
command motors, valves, or other actuators not equipped with safeguards. To do
so can be potentially harmful to persons or equipment in the event of a fault to
the unit.
CAUTION: Risk of Danger.
Read complete instructions prior to
installation and operation of the unit.
CAUTION: Risk of electric shock.
TABLE OF CONTENTS
Ordering Information . . . . . . . . . . . . . . . . . . . 2
General Controller Specifications . . . . . . . . . . 3
Optional Plug-In Cards . . . . . . . . . . . . . . . . . . 5
Installing the Controller . . . . . . . . . . . . . . . . . . 6
Setting the Jumpers . . . . . . . . . . . . . . . . . . . . 6
Installing the Plug-In Cards . . . . . . . . . . . . . . 7
Wiring the Controller . . . . . . . . . . . . . . . . . . . . 7
Reviewing the Front Buttons and Display . . . . 9
Programming the PAX2C . . . . . . . . . . . . . . . 10
Frequently Used Modbus Registers . . . . . . . 42
Factory Service Operations . . . . . . . . . . . . . 46
Troubleshooting Guide . . . . . . . . . . . . . . . . . 52
ORDERING INFORMATION
Controller Part Numbers
MODEL NO.
PAX2C
DESCRIPTION
PART NUMBER
Universal Input Temperature/Process Controller, Horizontal
PX2C8H00
Universal Input Temperature/Process Controller, Vertical
PX2C8V00
Option Card and Accessories Part Numbers
TYPE
MODEL NO.
DESCRIPTION
Dual Setpoint Relay Output Card
PAXCDS
Optional
Plug-In
Cards
PAXCDC
PART NUMBER
PAXCDS10
Quad Setpoint Relay Output Card
PAXCDS20
Quad Setpoint Sinking Open Collector Output Card
PAXCDS30
Quad Setpoint Sourcing Open Collector Output Card
PAXCDS40
RS485 Serial Communications Card with Terminal Block
PAXCDC10
Extended RS485 Serial Communications Card with Dual RJ11 Connector
PAXCDC1C
RS232 Serial Communications Card with Terminal Block
PAXCDC20
Extended RS232 Serial Communications Card with 9 Pin D Connector
PAXCDC2C
DeviceNet Communications Card
PAXCDC30
Profibus-DP Communications Card
PAXCDC50
PAXCDL
Analog Output Card
PAXCDL10
CBLUSB
USB Programming Cable Type A-Mini B
CBLUSB01
Note:
1.
For Modbus communications use RS485 Communications Output Card and configure communication (tYPE) parameter for Modbus.
2
GENERAL CONTROLLER SPECIFICATIONS
1. DISPLAY: Negative image LCD with tri-color backlight.
The display is divided into seven independently programmable color zones:
Line 1, Line 2, Universal Annunciators (1-4) & Mnemonics
Line 1 and 2: 4 digits each line
Display Range: -1999 to 9999
Units - Programmable 3 digit units annunciator
Bar Graph - Programmable 8 segment bar graph
Universal Annunciator 1 thru 4: Programmable 2 digit annunciator
Status Mnemonics: MAN - Controller is in Manual Mode
REM – Controller is in Remote Mode
Vertical Model Digit Size: Line 1 - 0.51" (13 mm), Line 2 - 0.44" (11.2 mm)
Horizontal Model Digit Size: Line 1 - 0.62" (15.7 mm), Line 2 - 0.47" (12.0 mm)
2. POWER:
AC Power: 40 to 250 VAC, 50/60 Hz, 14 VA
DC Power: 21.6 to 250 VDC, 8 W
Isolation: 2300 Vrms for 1 min. to all inputs and outputs.
3. KEYPAD: 2 programmable function keys, 4 keys total
4. A/D CONVERTER: 24 bit resolution
5. DISPLAY MESSAGES:
“OLOL” - Appears when measurement exceeds + signal range.
“ULUL” - Appears when measurement exceeds - signal range
“Shrt” - Appears when shorted sensor is detected. (RTD range only)
“OPEN” - Appears when open sensor is detected. (TC/RTD range only)
“. . . . ” - Appears when display values exceed + display range.
“- . . . ” - Appears when display values exceed - display range.
6. INPUT CAPABILITIES:
Current Input:
Temperature Inputs:
Scale: °F or °C
Offset Range: -1999 to 9999 display units.
Thermocouple Inputs:
Input Impedance: 20M
Lead Resisitance Effect: 0.03 μV/
Max Continuous Overvoltage: 30 VDC
INPUT
TYPE
WIRE COLOR
ACCURACY* ACCURACY*
STANDARD
(18 to 28 °C) (0 to 50 °C)
RANGE
ANSI
BS 1843
T
-200 to 400°C
1.2°C
2.1°C
ITS-90
(+) blue
(-) red
(+) white
(-) blue
E
-200 to 750°C
1.0°C
2.4°C
ITS-90
(+) purple (+) brown
(-) red
(-) blue
J
-200 to 760°C
1.1°C
2.3°C
ITS-90
(+) white
(-) red
K
-200 to 1250°C
1.3°C
3.4°C
ITS-90
(+) yellow (+) brown
(-) red
(-) blue
R
0 to 1768°C
1.9°C
4.0°C
ITS-90
no
standard
(+) white
(-) blue
S
0 to 1768°C
1.9°C
4.0°C
ITS-90
no
standard
(+) white
(-) blue
B
150 to 300°C
300 to 1820°C
3.9°C
2.8°C
5.7°C
4.4°C
ITS-90
no
standard
no
standard
N
-200 to 1300°C
1.3°C
3.1°C
ITS-90
(+) orange (+) orange
(-) red
(-) blue
C
(W5/W26)
0 to 2315°C
1.9°C
6.1°C
ASTM no
E988-90** standard
(+) yellow
(-) blue
no
standard
INPUT RANGE
ACCURACY *
(18 to 28°C)
ACCURACY *
(0 to 50°C)
IMPEDANCE
‡
RESOLUTION
± 250 μADC
0.03% of rdg
+ 0.03μA
0.12% of rdg
+ 0.04μA
1.11 K
0.1μA
± 2.5 mADC
0.03% of rdg
+ 0.3μA
0.12% of rdg
+ 0.4μA
111 
1μA
± 25 mADC
0.03% of rdg
+ 3μA
0.12% of rdg
+ 4μA
11.1 
10μA
± 250 mADC
0.05% of rdg
+ 30μA
0.12% of rdg
+ 40μA
1.1 
0.1mA
INPUT TYPE
RANGE
ACCURACY*
(18 to 28 °C)
ACCURACY*
(0 to 50 °C)
± 2 ADC
0.5% of rdg
+ 0.3mA
0.7% of rdg
+ 0.4mA
0.1 
1mA
100 ohm Pt
alpha = .00385
-200 to 850°C
0.4°C
1.6°C
IEC 751
RTD Inputs:
Type: 3 or 4 wire, 2 wire can be compensated for lead wire resistance
Excitation current: 100 ohm range: 136.5 A ±10%
10 ohm range: 2.05 mA ±10%
Lead resistance: 100 ohm range: 10 ohm/lead max.
10 ohm range: 3 ohms/lead max.
Max. continuous overload: 30 VDC
Voltage Input:
INPUT RANGE
ACCURACY *
(18 to 28°C)
ACCURACY *
(0 to 50°C)
IMPEDANCE
‡
RESOLUTION
± 250 mVDC
0.03% of rdg
+ 30μV
0.12% of rdg
+ 40μV
451 K
0.1mV
± 2.0 VDC
0.03% of rdg
+ 0.3mV
0.12% of rdg
+ 0.4mV
451 K
1mV
± 10 VDC
0.03% of rdg
+ 3mV
0.12% of rdg
+ 4mV
451 K
1mV
± 25 VDC
0.03% of rdg
+ 3mV
0.12% of rdg
+ 4mV
451 K
10mV
± 100 VDC
0.3% of rdg
+ 30mV
0.12% of rdg
+ 40mV
451 K
0.1V
± 200 VDC
0.3% of rdg
+ 30mV
0.12% of rdg
+ 40mV
451 K
0.1V
STANDARD
**
100 ohm Pt
alpha = .00392
-200 to 850°C
0.4°C
1.6°C
no official
standard
120 ohm Nickel
alpha = .00672
-80 to 259°C
0.2°C
0.5°C
no official
standard
10 ohm Copper
alpha = .00427
-110 to 260°C
0.4°C
0.9°C
no official
standard
Resistance Inputs:
INPUT
RANGE
MAX CONT.
‡
ACCURACY * ACCURACY *
COMPLIANCE
OVERLOAD RESOLUTION
(18 to 28°C)
(0 to 50°C)
0.05% of rdg 0.2% of rdg
+0.03 ohm +0.04 ohm
0.175 V
30 V
0.1 ohm
0.05% of rdg 0.2% of rdg
999 ohm
+0.3 ohm
+0.4 ohm
1.75 V
30 V
1 ohm
0.05% of rdg 0.2% of rdg
+1 ohm
+1.5 ohm
17.5 V
30 V
1 ohm
100 ohm
9999 ohm
‡
*
**
Higher resolution can be achieved via input scaling.
After 20 min. warm-up, @ 5 samples per second input rate. Accuracy is
specified in two ways: Accuracy over an 18 to 28ºC and 15 to 75% RH
environment; and Accuracy over a 0 to 50ºC and 0 to 85% RH (non
condensing) environment. The specification includes the A/D conversion
errors, linearization conformity, and thermocouple ice point compensation.
Total system accuracy is the sum of controller and probe errors. Accuracy
may be improved by field calibrating the controller readout at the
temperature of interest.
These curves have been corrected to ITS-90.
3
7. EXCITATION POWER: Jumper selectable
Transmitter Power: +18 VDC, ± 5% @ 50 mA max.
Reference Voltage: + 2 VDC, ± 2%
Compliance: 1K load min (2 mA max)
Temperature Coefficient: 40 ppm/ºC max.
Reference Current: 1.05 mADC, ± 2%
Compliance: 10 K load max.
Temperature Coefficient: 40 ppm/ºC max.
8. USER INPUTS: Two programmable user inputs
Max. Continuous Input: 30 VDC
Isolation To Sensor Input Common: Not isolated.
Logic State: User programmable (UACt) for sink/source (Lo/Hi)
INPUT STATE
(USrACt)
LO/SINK
HI/SOURCE
20K pull-up to +3.3V
20K pull-down
Active
VIN < 1.1 VDC
VIN > 2.2 VDC
Inactive
VIN > 2.2 VDC
VIN < 1.1 VDC
9. CUSTOM LINEARIZATION:
Data Point Pairs: Selectable from 2 to 16
Display Range: -1999 to 9999
Decimal Point: 0 to 0.000
10. MEMORY: Nonvolatile FRAM memory retains all programmable
parameters and display values.
11. ENVIRONMENTAL CONDITIONS:
Operating Temperature Range: 0 to 50 °C
Storage Temperature Range: -40 to 60 °C
Vibration to IEC 68-2-6
Shock to IEC 68-2-27
Operating and Storage Humidity: 0 to 85% max. RH non-condensing
Altitude: Up to 2000 controllers
12. CERTIFICATIONS AND COMPLIANCES:
SAFETY
IEC/EN 61010-1
IP65 Enclosure rating (Face only)
IP20 Enclosure rating (Rear of unit)
Type 4X Indoor Enclosure rating (Face only)
EMC to EN 61326-1
Emissions Class A
Immunity to industrial environments
13. CONNECTIONS: High compression cage-clamp terminal block
Wire Strip Length: 0.3" (7.5 mm)
Wire Gauge Capacity: One 14 AWG (2.55 mm) solid, two 18 AWG (1.02
mm) or four 20 AWG (0.61 mm)
14. CONSTRUCTION: This unit is rated for NEMA 4X/IP65 indoor use. IP20
Touch safe. Installation Category II, Pollution Degree 2. One piece bezel/
case. Flame resistant. Synthetic rubber keypad. Panel gasket and mounting
clip included.
15. WEIGHT: 8 oz. (226.8 g)
4
OPTIONAL PLUG-IN CARDS
CONTROL/OUTPUT CARDS (PAXCDS)
WARNING: Disconnect all power to the unit before
installing plug-in cards.
The PAX2C controller has 4 available control/output plug-in cards. Only one
PAXCDS card can be installed at a time. (Logic state of the outputs can be
reversed in the programming.) These plug-in cards include:
Adding Option Cards
The PAX2C controllers can be fitted with up to three optional plug-in cards.
The details for each plug-in card can be reviewed in the specification section
below. Only one card from each function type can be installed at a time. The
function types include Setpoint/Control (PAXCDS), Communications
(PAXCDC), and Analog Output (PAXCDL). The plug-in cards can be installed
initially or at a later date.
PAXCDS10 - Dual Relay, FORM-C, Normally open & closed
PAXCDS20 - Quad Relay, FORM-A, Normally open only
PAXCDS30 - Isolated quad sinking NPN open collector
PAXCDS40 - Isolated quad sourcing PNP open collector
DUAL RELAY CARD
Type: Two FORM-C relays
Isolation To Sensor & User Input Commons: 2000 Vrms for 1 min.
Working Voltage: 240 Vrms
Contact Rating:
One Relay Energized: 5 amps @ 120/240 VAC or 28 VDC (resistive load).
Total current with both relays energized not to exceed 5 amps
Life Expectancy: 100 K cycles min. at full load rating. External RC snubber
extends relay life for operation with inductive loads
COMMUNICATION CARDS (PAXCDC)
A variety of communication protocols are available for the PAX2C controller.
Only one PAXCDC card can be installed at a time. Note: For Modbus
communications use RS485 Communications Output Card and configure
communication (tYPE) parameter for Modbus.
PAXCDC10 - RS485 Serial (Terminal)
PAXCDC1C - RS485 Serial (Connector)
PAXCDC20 - RS232 Serial (Terminal)
PAXCDC2C - RS232 Serial (Connector)
PAXCDC30 - DeviceNet
PAXCDC50 - Profibus-DP
QUAD RELAY CARD
Type: Four FORM-A relays
Isolation To Sensor & User Input Commons: 2300 Vrms for 1 min.
Working Voltage: 250 Vrms
Contact Rating:
One Relay Energized: 3 amps @ 240 VAC or 30 VDC (resistive load).
Total current with all four relays energized not to exceed 4 amps
Life Expectancy: 100K cycles min. at full load rating. External RC snubber
extends relay life for operation with inductive loads
SERIAL COMMUNICATIONS CARD
Type: RS485 or RS232
Communication Type: RLC Protocol (ASCII), Modbus RTU, and Modbus
ASCII
Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.
Working Voltage: 50 V. Not Isolated from all other commons.
Data: 7/8 bits
Baud: 1200 to 38,400
Parity: no, odd or even
Bus Address: Selectable 0 to 99 (RLC Protocol), or 1 to 247 (Modbus
Protocol), Max. 32 controllers per line (RS485)
Transmit Delay: Selectable for 0 to 0.250 sec (+2 msec min)
QUAD SINKING OPEN COLLECTOR CARD
Type: Four isolated sinking NPN transistors.
Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.
Working Voltage: 50 V. Not Isolated from all other commons.
Rating: 100 mA max @ VSAT = 0.7 V max. VMAX = 30 V
DEVICENET™ CARD
Compatibility: Group 2 Server Only, not UCMM capable
Baud Rates: 125 Kbaud, 250 Kbaud, and 500 Kbaud
Bus Interface: Phillips 82C250 or equivalent with MIS wiring protection per
DeviceNet™ Volume I Section 10.2.2.
Node Isolation: Bus powered, isolated node
Host Isolation: 500 Vrms for 1 minute (50 V working) between DeviceNet™
and controller input common.
QUAD SOURCING OPEN COLLECTOR CARD
Type: Four isolated sourcing PNP transistors.
Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.
Working Voltage: 50 V. Not Isolated from all other commons.
Rating: Internal supply: 18 VDC unregulated, 30 mA max. total
External supply: 30 VDC max., 100 mA max. each output
ALL FOUR SETPOINT CARDS
Response Time: See Update Rates step response specification on page 3; add
6 msec (typical) for relay card
PROFIBUS-DP CARD
Fieldbus Type: Profibus-DP as per EN 50170, implemented with Siemens
SPC3 ASIC
Conformance: PNO Certified Profibus-DP Slave Device
Baud Rates: Automatic baud rate detection in the range 9.6 Kbaud to 12 Mbaud
Station Address: 0 to 125, set by rotary switches.
Connection: 9-pin Female D-Sub connector
Network Isolation: 500 Vrms for 1 minute (50 V working) between Profibus
network and sensor and user input commons. Not isolated from all other
commons.
LINEAR DC OUTPUT (PAXCDL)
Either a 0(4)-20 mA or 0-10 V linear DC output is available from the analog
output plug-in card. The programmable output low and high scaling can be
based on various display values. Reverse slope output is possible by reversing
the scaling point positions.
PAXCDL10 - Retransmitted Analog Output Card
PROGRAMMING SOFTWARE
®
®
Crimson software is a Windows based program that allows configuration
of the PAX® controller from a PC. Crimson offers standard drop-down menu
commands, that make it easy to program the controller. The controller’s program
can then be saved in a PC file for future use. The Crimson installation file is
located on the included flash drive, or it can be downloaded at www.redlion.net
ANALOG OUTPUT CARD
Types: 0 to 20 mA, 4 to 20 mA or 0 to 10 VDC
Isolation To Sensor & User Input Commons: 500 Vrms for 1 min.
Working Voltage: 50 V. Not Isolated from all other commons.
Accuracy: 0.17% of FS (18 to 28 °C); 0.4% of FS (0 to 50 °C)
Resolution: 1/3500
Compliance: 10 VDC: 10 K load min., 20 mA: 500  load max.
Powered: Self-powered
Step Response: See Update Rates step response specification on page 3.
Update time: See ADC Conversion Rate and Update Time parameter
5
1.0 INSTALLING
THE
CONTROLLER
Installation
screws evenly until the unit is snug in the panel (Torque to approximately 7
in-lbs [79N-cm]). Do not over-tighten the screws.
The PAX2C meets NEMA 4X/IP65 requirements when properly installed.
The unit is intended to be mounted into an enclosed panel. Prepare the panel
cutout to the dimensions shown. Remove the panel latch from the unit. Slide the
panel gasket over the rear of the unit to the back of the bezel. The unit should
be installed fully assembled. Insert the unit into the panel cutout.
While holding the unit in place, push the panel
latch over the rear of the unit so that the tabs of
the panel latch engage in the slots on the
PANEL case. The panel latch should be
engaged in the farthest forward slot
possible. To achieve a proper
BEZEL
seal, tighten the latch
LATCHING
SLOTS
Installation Environment
The unit should be installed in a location that does not exceed the operating
temperature and provides good air circulation. Placing the unit near devices that
generate excessive heat should be avoided.
The bezel should only be cleaned with a soft cloth and neutral soap product.
Do NOT use solvents. Continuous exposure to direct sunlight may accelerate the
aging process of the bezel.
Do not use tools of any kind (screwdrivers, pens, pencils, etc.) to operate the
keypad of the unit.
HORIZONTAL PANEL CUT-OUT
PANEL
LATCH
3.62 +.03
-.00
(92 +.8
-.0 )
LATCHING
TABS
PANEL
GASKET
1.77+.02
-.00
(45 +.5
-.0 )
PANEL
MOUNTING
SCREWS
2.0 SETTING
THE
JUMPERS
Current Input
The PAX2C controller has four jumpers that must be checked and/or changed
prior to applying power. The following Jumper Selection Figures show an
enlargement of the jumper area.
To access the jumpers, remove the controller base from the case by firmly
squeezing and pulling back on the side rear finger tabs. This should lower the
latch below the case slot (which is located just in front of the finger tabs). It is
recommended to release the latch on one side, then start the other side latch.
For current input, only one jumper must be configured to select the current
range. This jumper is shared with the voltage input range. To avoid overloads,
select the jumper position that is high enough to accommodate the maximum
signal input level to be applied.
Note: The position of the T/V jumper does not matter when the controller is
in the current input mode.
Temperature Input
Warning: Exposed line voltage exists on the circuit boards. Remove
all power to the controller and load circuits before accessing inside
of the controller.
For temperature measurement the T/V jumper must be in the T (temperature)
position. For RTD sensors the RTD jumper must also be set.
Resistance Input
FRONT DISPLAY
Three jumpers are used to configure the resistance input. The T/V jumper
must be in the V (voltage) position, and the excitation jumper must be in the
1.05 mA REF position. The voltage/resistance jumper position is determined by
the input range.
Main
Circuit
Board
Excitation Output Jumper
This jumper is used to select the excitation range for the application. If
excitation is not being used, it is not necessary to check or move this jumper.
EXCITATION OUTPUT JUMPER
Finger
Tab
RTD
18V @ 50mA
2V REF.
1.05 mA REF.
100
JUMPER
LOCATIONS
T
I
V
Finger
Tab
10 ohm RTD
100 ohm RTD
V
RTD INPUTS
INPUT RANGE JUMPERS
REAR TERMINALS
2A
.25 A
.025 A
.0025 A
250 μA
INPUT RANGE JUMPERS
Voltage Input
Two jumpers are used in configuring the controller for voltage/resistance.
The first jumper, T/V, must be in the V (voltage) position. The second jumper is
used to select the proper voltage input range. (This jumper is also used to select
the current input range.) Select a range that is high enough to accommodate the
maximum signal input to avoid overloads. For proper operation, the input range
selected in programming must match the jumper setting.
THERMOCOUPLE/
VOLTAGE
SELECTION
TEMPERATURE
VOLTAGE
CURRENT INPUTS
LV - 250mV/2V/100Ω/1KΩ
M - 10V/100V
HV - 25V/200V/10KΩ
VOLTAGE/RESISTANCE
INPUTS
REAR TERMINALS
6
3.0 INSTALLING PLUG-IN CARDS
To Install:
The plug-in cards are separately purchased optional cards that perform
specific functions. These cards plug into the main circuit board of the controller.
The plug-in cards have many unique functions when used with the PAX2C.
1. With the controller removed from the case, locate the plug-in card connector
for the card type to be installed. The types are keyed by position with
different main circuit board connector locations. When installing the card,
hold the controller by the rear terminals and not by the front display board.
If installing the Quad sourcing Plug-in Card (PAXCDS40), set the jumper for
internal or external supply operation before continuing.
CAUTION: The plug-in card and main circuit board contain static
sensitive components. Before handling the cards, discharge static
charges from your body by touching a grounded bare metal
object. Ideally, handle the cards at a static controlled clean
workstation. Also, only handle the cards by the edges. Dirt, oil or
other contaminants that may contact the cards can adversely
affect circuit operation.
Alignment
Slots
Internal Supply
(18 V unregulated)
External Supply
(30 V max )
TOP VIEW
Main
Circuit
Board
2. Install the plug-in card by aligning the card terminals with the slot bay in the
rear cover. Be sure the connector is fully engaged and the tab on the plug-in
card rests in the alignment slot on the display board.
3. Slide the controller base back into the case. Be sure the rear cover latches
fully into the case.
4. Apply the plug-in card label to the bottom side of the controller in the
designated area. Do Not Cover the vents on the top surface of the controller.
The surface of the case must be clean for the label to adhere properly.
Analog Output
Card
Connectors
Setpoint
Output
Card
Serial
Communications
Card
Finger
Tab
Finger
Tab
4.0 WIRING
THE
CONTROLLER
WIRING OVERVIEW
b. Connect the shield to earth ground at both ends of the cable, usually when
the noise source frequency is above 1 MHz.
c. Connect the shield to common of the controller and leave the other end of
the shield unconnected and insulated from earth ground.
3. Never run Signal or Control cables in the same conduit or raceway with AC
power lines, conductors feeding motors, solenoids, SCR controls, and
heaters, etc. The cables should be run in metal conduit that is properly
grounded. This is especially useful in applications where cable runs are long
and portable two-way radios are used in close proximity or if the installation
is near a commercial radio transmitter.
4. Signal or Control cables within an enclosure should be routed as far as possible
from contactors, control relays, transformers, and other noisy components.
5. In extremely high EMI environments, the use of external EMI suppression
devices, such as ferrite suppression cores, is effective. Install them on Signal
and Control cables as close to the unit as possible. Loop the cable through the
core several times or use multiple cores on each cable for additional
protection. Install line filters on the power input cable to the unit to suppress
power line interference. Install them near the power entry point of the
enclosure. The following EMI suppression devices (or equivalent) are
recommended:
Ferrite Suppression Cores for signal and control cables:
Fair-Rite # 0443167251 (RLC# FCOR0000)
TDK # ZCAT3035-1330A
Steward # 28B2029-0A0
Line Filters for input power cables:
Schaffner # FN2010-1/07 (RLC# LFIL0000)
Schaffner # FN670-1.8/07
Corcom # 1 VR3
Note: Reference manufacturer’s instructions when installing a line filter.
6. Long cable runs are more susceptible to EMI pickup than short cable runs.
Therefore, keep cable runs as short as possible.
7. Switching of inductive loads produces high EMI. Use of snubbers across
inductive loads suppresses EMI.
Snubber: RLC# SNUB0000.
Electrical connections are made via screw-clamp terminals located on the
back of the controller. All conductors should conform to the controller’s voltage
and current ratings. All cabling should conform to appropriate standards of good
installation, local codes and regulations. It is recommended that the power
supplied to the controller (DC or AC) be protected by a fuse or circuit breaker.
When wiring the controller, compare the numbers embossed on the back of
the controller case against those shown in wiring drawings for proper wire
position. Strip the wire, leaving approximately 0.3" (7.5 mm) bare lead exposed
(stranded wires should be tinned with solder). Insert the lead under the correct
screw-clamp terminal and tighten until the wire is secure (Pull wire to verify
tightness). Each terminal can accept up to one #14 AWG (2.55 mm) wire, two
#18 AWG (1.02 mm), or four #20 AWG (0.61 mm).
EMC INSTALLATION GUIDELINES
Although this controller is designed with a high degree of immunity to
Electro-Magnetic Interference (EMI), proper installation and wiring methods
must be followed to ensure compatibility in each application. The type of the
electrical noise, source or coupling method into the controller may be different
for various installations. The controller becomes more immune to EMI with
fewer I/O connections. Cable length, routing, and shield termination are very
important and can mean the difference between a successful or troublesome
installation. Listed below are some EMC guidelines for successful installation
in an industrial environment.
1. The controller should be mounted in a metal enclosure, which is properly
connected to protective earth.
2. Use shielded (screened) cables for all Signal and Control inputs. The shield
(screen) pigtail connection should be made as short as possible. The
connection point for the shield depends somewhat upon the application.
Listed below are the recommended methods of connecting the shield, in order
of their effectiveness.
a. Connect the shield only at the panel where the unit is mounted to earth
ground (protective earth).
7
4.1 POWER WIRING
AC Power
DC Power
1 AC/DC
+
2 AC/DC
1 AC/DC
1 AC/DC
+
2 AC/DC
OR
2 AC/DC
-
-
4.2 VOLTAGE/RESISTANCE/CURRENT INPUT SIGNAL WIRING
IMPORTANT: Before connecting signal wires, the Input Range Jumpers and Excitation Jumper should be verified for proper position.
Terminal 3: +Volt supply
Terminal 7: +VDC (signal)
Terminal 8: -VDC (common)
Excitation Jumper: 18 V
+ TRANSMITTER -
V EXC
Terminal 3: Jumper to
terminal 7
Terminal 7: Resistance
Terminal 8: Resistance
3
Excitation Jumper:
1.05 mA REF.
T/V Jumper: V position
Voltage/Resistance Input
Jumper: Set per input signal
7
8
INP COMM
3
6
7
8
Iout
3 WIRE TRANSMITTER
+
Potentiometer Signal as Voltage Input
(3 wire requiring excitation)
1.05 mA
REF.
10K MAX
Terminal 3: High end of pot.
Terminal 7: Wiper
Terminal 8: Low end of pot.
Excitation Jumper: 2 V REF.
T/V Jumper: V
Voltage/Resistance Input Jumper: 2 Volt
Module 1 Input Range: 2 Volt
Note: The Apply signal scaling style
should be used because the signal
will be in volts.
_
Vout
INP COMM
Resistance Signal
(2 wire requiring
excitation)
INP COMM
2A DC MAX.
V-TC-RTD-IN
6
I INPUT
5
V EXC
I INPUT
4
2 WIRE
+
200VDC MAX.
3
Voltage Signal (3 wire
requiring 18 V excitation)
V-TC-RTD-IN
̶
Terminal 3: +Volt supply
Terminal 6: +ADC (signal)
Terminal 8: -ADC (common)
Excitation Jumper: 18 V
V EXC
Load
RTD EXC
-
V-TC-RTD-IN
+
+
-
8
Current Signal (3 wire
requiring 18 V excitation)
Excitation Jumper: 18 V
COMM
8
6
Process/Current Signal
(2 wire requiring 18V
excitation)
V EXEC
INP COMM
7
INP COMM
V-TC-RTD IN
6
Process/Current
Signal
(external powered)
I INPUT
I INPUT
Voltage Signal
3
7
8
2V REF.
2V
INPUT
Rmin=1KΩ
CAUTION: Sensor input common is NOT isolated from user input common. In order to preserve the safety of the controller application, the sensor input
common must be suitably isolated from hazardous live earth referenced voltages; or input common must be at protective earth ground potential. If not,
hazardous live voltage may be present at the User Inputs and User Input Common terminals. Appropriate considerations must then be given to the
potential of the user input common with respect to earth common; and the common of the isolated plug-in cards with respect to input common.
4.3 TEMPERATURE INPUT SIGNAL WIRING
IMPORTANT: Before connecting signal wires, verify the T/V Jumper is in the T position.
3-Wire RTD
+
INP COMM
RTD EXC
V-TC-RTD-IN
INP COMM
RTD EXC
V-TC-RTD-IN
INP COMM
2-Wire RTD
V-TC-RTD-IN
Thermocouple
7
8
5
7
8
5
7
8
̶
Sense Lead
Sense Lead
RTD (Excitation)
Jumper
8
CAUTION: Sensor input common is NOT isolated
from user input common. In order to preserve the
safety of the controller application, the sensor
input common must be suitably isolated from
hazardous live earth referenced voltages; or input
common must be at protective earth ground potential.
If not, hazardous live voltage may be present at the
User Inputs and User Input Common terminals.
Appropriate considerations must then be given to the
potential of the user input common with respect to
earth common; and the common of the isolated plugin cards with respect to input common.
4.4 USER INPUT WIRING
If not using User Inputs, then skip this section. User Input terminal does not need to be wired in order to remain in the inactive state.
Sinking Logic (UACt Lo)
Sourcing Logic (UACt Hi)
When the UACt parameter is programmed
to Hi, the user inputs of the controller are
internally pulled down to 0 V with 20 K
resistance. The input is active when a
voltage greater than 2.2 VDC is applied.
11
USER 2
10
USER 1
USER 2
9
USER INPUTS
USER COMM
USER 1
USER INPUTS
USER COMM
When the UACt parameter is programmed
to Lo, the user inputs of the controller are
internally pulled up to +3.3 V with 20 K
resistance. The input is active when it is
pulled low (<1.1 V).
9
10
11
OR
OR
V
4.5 SETPOINT (ALARMS) WIRING
4.6 SERIAL COMMUNICATION WIRING
4.7 ANALOG OUTPUT WIRING
5.0 REVIEWING
THE



FRONT BUTTONS
Line 1:
Display, Bar Graph
and Units
(Color Zone 1)
Line 2:
Display, Bar Graph
and Units
(Color Zone 2)
+
(30V max.)
AND
DISPLAY
DISPLAY MODE OPERATION
D
Index Line 2 through enabled Line 2 display values
P
Enter full programming mode or access the parameter and
hidden display loops; Press and hold to skip parameters and go
directly to Code or Programming Menu

User programmable Function key 1; hold for 3 seconds for user
programmable second function 1*

User programmable Function key 2; hold for 3 seconds for user
programmable second function 2*
*Factory setting for F1 and F2 and second function F1/F2 is no mode
KEY
Universal Annunciators
(Color Zones 3 - 6)
REM
SUPPLY
See appropriate plug-in card bulletin for wiring details.
KEY
MAN
-
Manual and Remote
Mode Mnemonics
(Color Zone 7)
PROGRAMMING MODE OPERATION
D
Return to the previous menu level (momentary press)
Quick exit to Display Mode (press and hold)
P
Access the programming parameter menu, store selected
parameter and index to next parameter

Increment selected parameter value; Hold  and momentarily
press  key to increment next decade or D key to increment by
1000’s

Decrement selected parameter value; Hold  and momentarily
press  key to decrement next decade or D key to decrement
by 1000’s
DISPLAY LINE 2
Line 2 consists of a 4-digit bottom line display, eight segment bar graph and
a three digit units mnemonic. Values such as Setpoints, Output Power,
Deviation, PID Parameters/Tuning Status, List A/B Status, and Alarm Values
may be shown on the Line 2 display. The eight segment bar graph may be
mapped to values such as Output Power, Deviation or Setpoints. The three digit
units mnemonic characters can be used to indicate which Line 2 display value is
shown. Line 2 is a tri-colored display and may be configured to change color
based on specified alarm/logic configurations.
The display loops described in the next section are used to view, reset and
modify the selected display values, based on the Line 2 Value Access setting
programmed for each available value. See Line 2 parameters in the Display
Parameters programming section for configuration details.
DISPLAY LINE 1
Line 1 consists of a large 4-digit top line display, eight segment bar graph and
a three digit units mnemonic: Values such as Input, Max(HI) & Min (LO) may
be shown on Line 1. The eight segment bar graph may be mapped to values such
as Output Power, Deviation or Setpoints. The three digit units mnemonic
characters can be used to indicate which Line 1 display value is shown. Line 1
is a tri-colored display and may be configured to change color based on
specified alarm/logic configurations.
9
Universal Annunciator Zones
Manual Mnemonic
The PAX2C has four programmable universal annunciator zones. Each zone
has a user-defined two digit annunciator mnemonic to suit a variety of
applications. Universal annunciator zones are tri-colored and may be configured
to change color based on specified alarm/logic configurations.
‘MAN’ - Flashes when the unit is in manual mode
The Mnemonic zone is tri-colored and may be configured to change color
based on specified alarm/logic configurations.
LINE 2 DISPLAY LOOPS
Main Display Loop
The PAX2C offers three display loops to allow users quick access to needed
information.
In the Main display loop, the D key is pressed to sequence through the
selected Line 2 values. The Line 2 units mnemonics are used to indicate which
Line 2 value is currently shown. When in the Main display loop, the Function
keys and perform the user functions programmed in the User Input
parameter section.
D
MAIN DISPLAY LOOP
Code 1-250
PLOC N/A
Code 0
PLOC Disabled
P
P
Held
Held
PARAMETER
DISPLAY
LOOP
PARAMETER
DISPLAY
LOOP
P
P
P
P
PARAMETER
DISPLAY
LOOP
Display loops provide quick access to selected parameters that can be viewed
and modified on Line 2 without having to enter Full Programming mode. These
values may include: input, max/min, List A/B selection, output power, PID
parameters/control, alarm parameters, setpoint values/selection, and display
intensity and contrast settings. To utilize the Parameter or Hidden Parameter
display loops, a security code (1-250) must be programmed. (See Programming
Security Code in the Display Parameters programming section for details.)
The Parameter display loop is accessed by pressing the P key. The selected
Parameter display loop values can be viewed and/or changed per the Line 2
Value Access setting programmed for each available value. The Hidden
Parameter display loop follows the Parameter display loop, and can only be
accessed when the correct security code is entered at the Code prompt.
Combining the two parameter loops provides an area for parameters that require
general access and/or protected or secure access depending on the application
needs.
While in the Parameter and Hidden Parameter loops, pressing the D key will
return the meter to the Main display loop. To directly access the Code prompt,
press and hold the P key. This can be done from the Main display loop or at any
point during the Parameter display loop. Also, to directly access Full
Programming mode while in the Hidden Parameter loop, press and hold the P
key to bypass any remaining Hidden Parameter loop values.
DISPLAY
VALUE
dEnt
CHANGE
DISPLAY
VALUE
dEnt
CHANGE
P
P
Held
P
Parameter and Hidden Parameter Display Loops
P
P
DISPLAY
VALUE
dEnt
CHANGE
COdE1-250
Code 0
PLOC Enabled
P
P
Wrong
code
entered
HIDDEN
PARAMETER
DISPLAY
LOOP
P
P
ProNO
Pro
End
Full Programming Mode
6.0 PROGRAMMING THE PAX2C
MODULE ENTRY
It is recommended that program settings be recorded as programming is
performed. A blank Parameter Value Chart is provided at the end of this bulletin.
BASIC/ADVANCED MODE
The Programming Menu is organized into seven modules. These modules
group together parameters that are related in function. The  and  keys are
used to select the desired module. The displayed module is entered by pressing
the P key.
Basic Mode (bSIC)
MODULE MENU
The PAX2C incorporates two different configuration modes that are user
selectable via the Display Configuration Menu:
Upon entering a module, a parameter selection sub-menu is provided to
choose the specific parameter type for programming. For example, this includes
analog and user input under the Input Parameter menu. Use the  and  keys
to select the desired parameter type, and press the P key to enter the parameter
menu.
When the PAX2C is configured in this mode, a maximum of four alarms are
supported and no mapped backlignt color changes are available. Default
backlight colors are still user selectable.
Advanced Mode (AdUC)
A maximum of sixteen alarms are supported and all backlight color
configuration menu parameters are enabled. Select this mode when you require
more than four alarms or where display color changes are desired.
PARAMETER MENU
Upon entering the Parameter Menu, the P key is pressed to advance to a
specific parameter to be changed. After completing the parameter menu, or upon
pressing the D key, the display returns to the initial entry point for the parameter
menu. For each additional press of the D key, the display returns to the previous
level within the module until exiting the module entirely.
PROGRAMMING MODE ENTRY
The Programming Mode is entered by pressing the P key. Full Programming
Mode will be accessible unless the controller is programmed to use the
Parameter loop or Hidden Parameter loop on the Line 2 display. In this case,
programming access will be limited by a security code and/or a hardware
program lock. (Refer to the previous section for details on Line 2 display loops
and limited programming access.) Full Programming Mode permits all
parameters to be viewed and modified. In this mode, the front panel keys change
to Programming Mode Operations and certain user input functions are disabled.
10
SELECTION/VALUE ENTRY
P
For each parameter, the top line display shows the parameter while
the bottom line shows the selections/value for that parameter. The 
and  keys are used to move through the selections/values for the
parameter. Pressing the P key, stores and activates the displayed
selection/value. This also advances the meter to the next parameter.
D
Pro
NO
F1
INPt
D
F1
INPt
F1
Analog Input Setup
Parameters
AnLG
P
Pro
Numerical Value Entry
If the parameter is programmed for enter (Entr), the  and  keys
are used to change the parameter values in any of the display loops.
The  and  keys will increment or decrement the parameter value.
When the  or  key is pressed and held, the value automatically
scrolls. The longer the key is held the faster the value scrolls.
For large value changes, press and hold the  or  key. While
holding that key, momentarily press the opposite arrow key (  or )
to shift decades (10’s 100’s, etc), or momentarily press the D key and
the value scrolls by 1000’s as the arrow key is held. Releasing the arrow
key removes the decade or 1000’s scroll feature. The arrow keys can
then be used to make small value changes as described above.
F2
F2
INPt
D
F2
User Input/Function Key
Parameters
USEr
Out
D
P
Digital Output Setup
Parameters
dGtL
Pro
F1
F2
Out
Pro
F1
D
F2
Out
Analog Output Setup
Parameters
AnLG
NO
PROGRAMMING MODE EXIT
dISP
To exit the Programming Mode, press and hold the D key (from
anywhere in the Programming Mode) or press the P key with Pro NO
displayed. This will commit stored parameter changes to memory and
return the meter to the Display Mode. If a parameter was just changed,
the P key must be pressed to store the change before pressing the D key.
(If power loss occurs before returning to the Display Mode, verify recent
parameter changes.)
Display - General
Configuration Parameters
CNFG
F1
F2
dISP
Display - Zone
Configuration Parameters
ZONE
D
P
F1
Pro
dISP
PROGRAMMING TIPS
F1
dISP
D
F2
F2
Display - Line 2
Parameters
LOCS
It is recommended to start with the Input Parameters and proceed
through each module in sequence. If lost or confused while programming,
press and hold the D key to exit programming mode and start over. It is
recommended that program settings be recorded as programming is
performed. When programming is complete lock out programming with
a user input or lock-out code.
Factory Settings may be completely restored in the Factory Service
Operations module. This is useful when encountering programming
problems.
F1
F2
dISP
Display - Min/Max
Configuration Parameters
HILO
F1
F2
dISP
Display - Security Code
Configuration Parameters
COdE
Pid
PID Control
Parameters
CtrL
F1
F2
Pid
PID Setpoint
Parameters
SP
F1
F2
Pid
D
PID
Parameters
Pid
P
Pro
F1
F2
Pid
F1
Pid
D
F2
Output Power
Parameters
PWr
In Programming Menu:
Top line is green to indicate top level programming modules
Top line is orange to indicate module menu or sub-menu selection
Top line is red to indicate a changeable parameter.
F1
F2
Pid
On/Off
Parameters
ONOF
F1
F2
Pid
PID Tuning
Parameters
tunE
D
F1
P
Pro
SLCt
ALr
ALn
Alarm
Parameters
D
F2
Port
D
P
USB Configuration
Parameters
USb
Pro
F1
F2
Port
F1
F2
D
Port
SErL
Serial Communications
Parameters
D
Factory Service
Operations
Pro
FACt
Pro
End
11
2 seconds
Display Loop
INPUT PARAMETERS (INPt)
INPUT SELECT
INPt
AnLG
P2C
AnLG
USEr
Select the Input to be programmed.
ANALOG INPUT PARAMETERS: TEMPERATURE MODE (AnLG)
This section details the programming for the analog input.
Pro
NO
F1
F2
Pro
INPt
P
P2C
INPt
AnLG
D
tYPE SCAL ICE
rAtE dCPt rnd
OFSt FLtr
INP
INP
INP
INP
INP
INP
INP
INP
tc-J
°F
ON
2O
0. 0
0. 1
0. O
1. O
SPS
Input
Range
Input
Scaling
Ice Point
Compensation
Input
Rate
TEMPERATURE INPUT TYPE
tYPE
INP
tc-J
250 uA
2.5 mA
25 mA
250 mA
2A
250 mU
2U
10 U
25 U
100 U
200 U
100 RESs
1k RES
10k RES
tc-t
tc-E
tc-J
tc-k
tc-r
tc-S
tc-b
tc-n
tc-C
r385
dCPt
r392
r672
r427
INP
0. 0
rnd
INP
INP
ON
°C
Select the temperature scale. If changed, those parameters that
relate to the temperature scale should be checked.
OFSt
For TC Input Range Selection only.
Select desired display resolution. The available selections are
dependent on the Input Type selected (tYPE).
1
10
2
20
5
50
100
-1999 to 9999
INP
ON
OFF
0. 0
5
10
The display can be corrected with an offset value. This can be used
to compensate for probe errors, errors due to variances in probe
placement or adjusting the readout to a reference thermometer.
DIGITAL FILTERING
FLtr
INPUT UPDATE RATE (/SEC)
0.0 to 25.0
seconds
INP
1. 0
20
INP
20
0 to 0.0 (temp)
0 to 0.000 (curr/volt/ohm)
DISPLAY OFFSET
This parameter turns the internal ice point compensation on or off.
Normally, the ice point compensation is on. If using external
compensation, set this parameter to off. In this case, use copper leads
from the external compensation point to the meter.
rAtE
Filter
Setting
Rounding selections other than one, cause the Input Display to
‘round’ to the nearest rounding increment selected (ie. rounding of
‘5’ causes 122 to round to 120 and 123 to round to 125). Rounding
starts at the least significant digit of the Input Display. Remaining
parameter entries (scaling point values, setpoint values, etc.) are not automatically
adjusted to this display rounding selection.
ICE POINT COMPENSATION
ICE
Display
Offset
Value
0. 1
INP
°F
Display
Rounding
ROUNDING INCREMENT
TEMPERATURE SCALE
°F
Display
Decimal
Point
DECIMAL RESOLUTION (Display Units)
Shaded selections indicate the available temperature input types. Select the
desired input type.
SCAL
SEC
SEC
Select the ADC conversion rate (conversions per second). The
SPS selection does not affect the display update rate, however it does
affect alarm and analog output response time. The default factory
setting of 20 is recommended for most applications. Selecting a fast
update rate may cause the display to appear very unstable.
12
The input filter setting is a time constant expressed in tenths of a
second. The filter settles to 99% of the final display value within
approximately 3 time constants. This is an Adaptive Digital Filter
which is designed to steady the Input Display reading. A value of ‘0’
disables filtering.
ANALOG INPUT PARAMETERS: PROCESS MODE (AnLG)
This section details the programming for the analog input.
Pro
NO
F2
F1
Pro
INPt
P
tYPE Root rAtE dCPt rnd
P2C
INPt
AnLG
D
OFSt FLtr PNtS StYL INPt dISP SLSt
INP
INP
INP
INP
INP
INP
INP
INP
2
NO
20
0. O
0. 1
0. 0
1. O
2
U
SPS
Input
Range
Enable
Square
Root
Input
Rate
INP
2
U
250 uA
2.5 mA
25 mA
250 mA
2A
250 mU
2U
10 U
25 U
100 U
200 U
100 RESs
1k RES
10k RES
tc-t
tc-E
tc-J
tc-k
tc-r
tc-S
tc-b
tc-n
tc-C
r385
Display
Decimal
Point
Display
Rounding
Display
Offset
Value
Filter
Setting
r392
r672
r427
dCPt
INP
0. 0
rnd
INP
YES NO
dCPt = 0
INPt1 = 4.00 mA
Root = YES
dISP2 = 6216 ft3/hr
dISP1 = 0 ft3/hr
INPt2 = 20.00 mA
OFSt
SPS
Input n
Value
Display n
Value
Enable
Scaling
List
0 to 0.000 (curr/volt/ohm)
0 to 0.0 (temp)
Select desired display resolution. The available selections are
dependent on the Input Type selected (tYPE).
1
10
2
20
5
50
100
Delta P
(PSI)
Transmitter
(mA)
Flow
(ft3 /hr)
0.00
15.63
31.25
62.50
125.00
187.50
250.00
312.50
375.00
437.50
500.00
4.00
4.50
5.00
6.00
8.00
10.00
12.00
14.00
16.00
18.00
20.00
0
1099
1554
2198
3108
3807
4396
4914
5383
5815
6216
0. 0
The display can be corrected with an offset value. This can be used
to compensate for sensor errors, errors due to variances in sensor
placement or adjusting the readout to a reference source. A value of
zero will remove the affects of offset.
DIGITAL FILTERING
FLtr
0.0 to 25.0
seconds
INP
The input filter setting is a time constant expressed in tenths of a
second. The filter settles to 99% of the final display value within
SEC
approximately 3 time constants. This is an Adaptive Digital Filter
which is designed to steady the Input Display reading. A value of ‘0’
disables filtering.
1. 0
SCALING POINTS
PNtS
2 to 16
INP
Linear - Scaling Points (2)
For linear processes, only 2 scaling points are necessary. It is
recommended that the 2 scaling points be at opposite ends of the
input signal being applied. The points do not have to be the signal
limits. Display scaling will be linear between and continue past the
entered points up to the limits of the Input Signal Jumper position. Each scaling
point has a coordinate-pair consisting of an Input Value (INPt n) and an
associated desired Display Value (dISP n).
INPUT UPDATE RATE (/SEC)
20
-1999 to 9999
INP
2
20
Scaling
Style
DISPLAY OFFSET
As a result of the scaling and square root linearization, the following
represents the readings at various inputs:
10
Scaling
Points
Rounding selections other than one, cause the Input Display to
‘round’ to the nearest rounding increment selected (ie. rounding of
‘5’ causes 122 to round to 120 and 123 to round to 125). Rounding
starts at the least significant digit of the Input Display. Remaining
parameter entries (scaling point values, setpoint values, etc.) are not automatically
adjusted to this display rounding selection.
This parameter allows the unit to be used in applications in which
the measured signal is the square of the PV. This is useful in
applications such as the measurement of flow with a differential
pressure transducer.
5
1
0. 1
Example: It is necessary to square root linearize the output of a differential
pressure transmitter to indicate and control flow. The defining equation is F
= 278 ΔP , where ΔP = 0 - 500 PSI, transmitted linearly by a 4 - 20 mA
transducer. At full flow rate ( ΔP = 500 PSI), the flow is 6216 ft3/h. The
following scaling information is used with the controller:
INP
1
ROUNDING INCREMENT
INP
rAtE
INP
NO
DECIMAL RESOLUTION (Display Units)
SQUARE ROOT
NO
INP
0. O
setting of 5 is recommended for most applications. Selecting a fast update rate
may cause the display to appear very unstable.
Shaded selections indicate the available process input types. Select the
desired input type.
Root
INP
0. 0
SEC
PROCESS INPUT TYPE
tYPE
INP
KEY
40
Select the ADC conversion rate (conversions per second). The
selection does not affect the display update rate, however it does
affect alarm and analog output response time. The default factory
13
INPUT VALUE FOR SCALING POINT 2
Nonlinear - Scaling Points (Greater than 2)
For non-linear processes, up to 16 scaling points may be used to provide a
piece-wise linear approximation. (The greater the number of scaling points used,
the greater the conformity accuracy.) The Input Display will be linear between
scaling points that are sequential in program order. Each scaling point has a
coordinate-pair consisting of an Input Value (INPt n) and an associated desired
Display Value (dISP n). Data from tables or equations, or empirical data could be
used to derive the required number of segments and data values for the
coordinate pairs. In the Crimson software, several linearization equations are
provided to help calculate scaling points.
INPt
1. 0 00
For Key-in (KEY), enter the known second Input Value by using the
 or  arrow keys. For Apply (APLY), the existing programmed
value will appear. If this is acceptable, press the P key to save and
continue to the next parameter. To update/program this value, apply
the input signal that corresponds to Scaling Point 2, press  key and the actual
signal value will be displayed. Then press the P key to accept this value and
continue to the next parameter. (Follow the same procedure if using more than
2 scaling points.)
2
SCALING STYLE
StYL
INP
KEY
KEY
APLY
key-in data
apply signal
DISPLAY VALUE FOR SCALING POINT 2
dISP
If Input Values and corresponding Display Values are known, the
Key-in (KEY) scaling style can be used. This allows scaling without
the presence of the input signal. If Input Values have to be derived
from the actual input signal source or simulator, the Apply (APLY)
scaling style must be used.
100. 0
2
SLSt
For Key-in (KEY), enter the known first Input Value by using the
 or  arrow keys. (The Input Range selection sets up the decimal
1
location for the Input Value). For Apply (APLY), the existing
programmed value will appear. If this is acceptable, press the P key
to save and continue to the next parameter. To update/program this
value, apply the input signal that corresponds to Scaling Point 1, press  key
and the actual signal value will be displayed. Then press the P key to accept this
value and continue to the next parameter.
NO
DISPLAY VALUE FOR SCALING POINT 1
-1999 to 9999
INP
1
NO YES
INP
0. 0 00
0. 0
Enter the second coordinating Display Value by using the  or 
arrow keys. This is the same for KEY and APLY scaling styles. (Follow
the same procedure if using more than 2 scaling points.)
ENABLE SCALE LIST
-1999 to 9999
INP
dISP
-1999 to 9999
INP
INPUT VALUE FOR SCALING POINT 1
INPt
-1999 to 9999
INP
Enter the first coordinating Display Value by using the arrow keys.
This is the same for KEY and APLY scaling styles. The decimal point
follows the dCPt selection.
14
When enabled, a second list of scaling points is active in the
selected parameter list for List A and List B.
USER INPUT/FUNCTION KEY PARAMETERS (USEr)
The two user inputs are individually programmable to perform specific meter control functions. While in the Display Mode or Program Mode, the function is
executed the instant the user input transitions to the active state. The front panel function keys,  and , are also individually programmable to perform specific
control functions. While in the Display Mode, the primary function is executed the instant the key is pressed. Holding the function key for three seconds executes a
secondary function. It is possible to program a secondary function without a primary function.
In most cases, if more than one user input and/or function key is programmed for the same function, the maintained (level trigger) actions will be performed while
at least one of those user inputs or function keys are activated. The momentary (edge trigger) actions will be performed every time any of those user inputs or function
keys transition to the active state.
Note: In the following explanations, not all selections are available for both user inputs and front panel function keys. Displays are shown with each selection. Those
selections showing both displays are available for both. If a display is not shown, it is not available for that selection. USEr-n will represent both user inputs. Fn will
represent both function keys and second function keys.
Pro
NO
F2
F1
Pro
INPt
P
INPt
P2C
USEr
USEr
USEr
USEr
USEr
USEr
USEr
USEr
P2C
P2C
P2C
P2C
P2C
P2C
P2C
UACt
USr1
USr2
F1
F2
SCF1
SCF2
D
User Inputs
Function Keys
USER INPUT ACTIVE STATE
UACt
SETPOINT SELECTION
USrn Fn
Lo Hi
FNC
Lo
Select the desired active state for the User Inputs. Select Lo for
sink input, active low. Select Hi for source input, active high.
SPSL
When activated (USr = maintained action; Fn =
FNC toggle), the controller uses Setpoint 2 (SP2) as the active
FNC
SPSL
PID PARAMETER SELECTION
NO FUNCTION
USrn Fn
USrn Fn
FNC
NONE
FNC
NONE
No function is performed if activated. This is the
factory setting for all user inputs and function keys.
FNC
PSEL
FNC
PLOC
USrn Fn
FNC
ILOC
Integral Action of the PID computation is disabled as
ILOC
trnF
Places the controller in manual (user) mode as long as
FNC activated (USr = maintained action; Fn = toggle). The
trnF
USrn
The Maximum display appears on Line 2 as long as activated
d-HI
display is returned. The D or P keys override and disable the active
user input. The Maximum continues to function independent of the
selected display.
FNC (maintained). When the user input is released, the previously selected
AUTO/MANUAL MODE
FNC
SPrP
SELECT MAXIMUM DISPLAY
FNC long as activated (USr = maintained action; Fn = toggle).
USrn Fn
When activated (USr = maintained action), setpoint
FNC ramping is terminated and unit will operate at the target
setpoint. When user input is released, setpoint ramping
will resume at the next setpoint change.
When Function key is pressed (Fn = toggle), setpoint
ramping is terminated and unit will operate at the target
setpoint. A second press of the function key resumes
setpoint ramping at the next setpoint change.
SPrP
INTEGRAL ACTION LOCK
FNC
values for control. The controller initiates a “bumpless”
transfer during each transfer in an effort to minimize any
output power fluctuation.
SETPOINT RAMPING DISABLE
Programming Mode is locked-out, as long as activated (maintained
action). A security code can be configured to allow programming
access during lock-out.
USrn Fn
When activated (USr = maintained action; Fn =
FNC toggle), the controller uses the Alternate P, I, D, and filter
PSEL
PROGRAMMING MODE LOCK-OUT
USrn
setpoint value.
output is “bumpless” when transferring to/from either
operating mode.
15
RESET MAXIMUM DISPLAY
USrn Fn
USrn Fn
When activated (momentary action), rSEt flashes and
FNC the Maximum resets to the present Input Display value.
FNC
r-HI
ADJUST DISPLAY INTENSITY
r-HI
FNC
The Maximum function then continues from that value.
This selection functions independent of the selected
display.
dLEU
FNC
dLEU
DISPLAY SELECT
SELECT MINIMUM DISPLAY
USrn
The Minimum display appears on Line 2 as long as activated
d-Lo
display is returned. The D or P keys override and disable the active
user input. The Minimum continues to function independent of the
selected display.
USrn Fn
FNC (maintained). When the user input is released, the previously selected
FNC
dISP
FNC
dISP
RESET MINIMUM DISPLAY
USrn Fn
FNC
r-Lo
USrn Fn
When activated (momentary action), rSEt flashes and
FNC
The Minimum function then continues from that value.
This selection functions independent of the selected
display.
FNC
r-HL
When activated (momentary action), rSEt flashes and
FNC the Maximum and Minimum readings are set to the
r-HL
present Input Display value. The Maximum and Minimum
function then continues from that value. This selection
functions independent of the selected display.
FNC
r-AL
USrn Fn
FNC
When activated (momentary action), the controller will
FNC reset any active alarms that are selected in the User/
Function Alarm Selection Menu (ASEL).
r-AL
Prnt
Basic Mode: 4 Alarms Max
Advanced Mode: 16 Alarms Max
ALARM MASK SELECTION
ASEL
Un
NO
An
LISt
PRINT REQUEST
RESET ALARMS
USrn Fn
Two lists of input scaling points and alarm values
FNC (including band and deviation) are available. The two lists
are named LStA and LStb. If a user input is used to select
the list then LStA is selected when the user input is not
active and LStb is selected when the user input is active
(maintained action). If a front panel key is used to select
the list then the list will toggle for each key press
(momentary action). The display will only indicate which list is active when the
list is changed. To program the values for List-A and List-B, first complete the
programming of all the parameters. Exit programming and switch to the other
list. Re-enter programming and enter the desired values for the input scaling
points, alarms, band, and deviation if used.
LISt
RESET MAXIMUM AND MINIMUM DISPLAY
USrn Fn
When activated (momentary action), Line 2 advances
to the next display that is not locked out from the Display
Mode.
SELECT PARAMETER LIST
FNC the Minimum resets to the present Input Display value.
r-Lo
When activated (momentary action), the display
intensity changes to the next intensity level.
Selects the alarms that will be reset when the User Input/
Function keys are activated. Any alarms configured as “YES”
will be reset depending on the alarms configuration. Please see
the Alarms section of the manual for more information on the
alarm reset operation.
16
The meter issues a block print through the serial port
FNC when activated, and the serial type is set to rLC. The data
Prnt
transmitted during a print request and the serial type is
programmed in Module 7. If the user input is still active
after the transmission is complete (about 100 msec), an
additional transmission occurs. As long as the user input
is held active, continuous transmissions occur.
OUTPUT PARAMETERS (Out)
OUTPUT SELECT
Out
INP
dGtL
dGtL
AnLG
Select the Digital or Analog output to be programmed. The Analog
output selection only appears if an analog output and/or digital output
plug-in card is installed in the meter. When there is no output card
installed, “No Card” will be displayed on the display when trying to
enter the Output Configuration.
DIGITAL OUTPUT PARAMETERS (dGtL)
To have digital output capabilities, a digital output Plug-in card needs to be installed into the PAX2C (see Ordering Information). Depending on the output
card installed, there will be two or four digital outputs available.
Pro
NO
n
F1
'LJLWDO2XWSXW1XPEHU
F2
Pro
Out
P2C
SLCt
dGtL
P2C
On
On
Un
INP
Outn
HEAt
SNGL
NO
2. 0
An
SEC
P
Out
Available when
ASGN = ALr
D
Output
Select
ASGN
Output
Assignment
LGIC
Alarm Logic
Assignment
DIGITAL OUTPUT SELECTION
SLCt
P2C
Outn
Out1 Out2 Out3
On
HEAt
COOL
ALr
ASEL
Un
NO
CYCt
SNGL
2. 0
0.0 to 60.0
seconds
The Cycle Time value is the sum of a time-proportioned output’s
SEC on and off cycles. With time proportional outputs, the percentage of
output power is converted into output on time of the cycle time value
eg. if the controller’s algorithm calls for 65% power, and has a Cycle
Time of 10 seconds, the output will be on for 6.5 seconds and off for
3.5 seconds. A Cycle Time equal to, or less than, one-tenth of the process time
constant is recommended.
This parameter is only available when the digital output assignment is
configured as HEAt or COOL.
Or
The PAX2C supports three different modes when an output is
assigned as an alarm:
SNGL = Any
And
Selects the alarms to be logically combined per the Alarm Logic
Mode selection. Any alarms configured as “YES” will be used in the
Boolean logic calculation. If the Alarm Logic Mode is assigned as
Single (SNGL), only one alarm may be selected at a time.
INP
ALARM LOGIC MODE
SNGL And
YES
DIGITAL OUTPUT CYCLE TIME
NONE = Digital Output is disabled
HEAt = Heat Output Power
COOL = Cool Output Power
ALr = Alarm
MAN = Manual Control Mode
On
NO
Basic Mode: 4 Alarms Max
Advanced Mode: 16 Alarms Max
MAN
This selection is used to assign the controller’s digital outputs to
various internal values or conditions. It is possible to assign the same
properties to more than one output.
LGIC
Output
Cycle Time
ALARM MASK ASSIGNMENT
An
HEAt
Alarm Mask
Assignment
using OR Boolean logic. For example: If AL1 or
AL2 are active, the output will energize.
Out4
Selects the digital output to be programmed. The “Outn” in the
following parameters will reflect the chosen output number. After the
chosen output is completely programmed, the display returns to the
Output Select menu. Repeat steps for each output to be programmed.
The number of outputs available is digital output card (PAXCDS)
dependent (2 or 4).
NONE
CYCt
Or = Allows multiple alarms to be mapped to an output
DIGITAL OUTPUT ASSIGNMENT
ASGN
ASEL
single alarm. Selecting YES to any selection
will change other alarm selections to NO.
= Allows multiple alarms to be mapped to an output
using AND Boolean logic. For example: If AL1 and
AL2 are active, the output will energize.
17
ANALOG OUTPUT PARAMETERS (ANLG)
This section is only accessible with the optional PAXCDL Analog card installed (see Ordering Information).
Pro
NO
F1
F2
Pro
(Temp Only)
Out
P2C
tYPE
ASGN
ANLO
ANHI
UPdt
IFLt
AnLG
AnL
AnL
AnL
AnL
AnL
AnL
4-20
NONE
0
100O
0. 0
Lo
P
Out
D
mA
Analog
Output Type
SEC
Analog
Output
Assignment
Analog
Low Scale
Value
Analog
High Scale
Value
ANALOG OUTPUT TYPE
tYPE
AnL
4-20
4-20
0-10
Analog
Update
Rate
Probe
Burn-out
Action
ANALOG HIGH SCALE VALUE
ANHI
0-20
AnL
Enter the analog output type. For 0-20 mA or 4-20 mA use
terminals 18 and 19. For 0-10 V use terminals 16 and 17. Only one
range can be used at a time.
1000
-1999 to 9999
Enter the Display Value that corresponds to 20 mA (0-20 mA) , 20
mA (4-20 mA) or 10 VDC (0-10 VDC).
ANALOG OUTPUT ASSIGNMENT
ASGN
AnL
NONE
NONE
SP
INPt
dEv
HI
LO
OP
ANALOG UPDATE TIME
UPdt
Enter the source for the analog output to retransmit:
Mode operation. (See Serial RLC
NONE = Manual
Protocol in the Communications Port module).
0. 0
0
Enter the analog output update rate in seconds. A value of 0.0
Rate.
The following programming step is only available when Input Type in the
Input Menu is set for a temperature input (TC/RTD).
PROBE BURN-OUT ACTION
ANALOG LOW SCALE VALUE
AnL
seconds
SEC allows the meter to update the analog output at the ADC Conversion
INPt = Input Value
HI = Maximum Display Value
LO = Minimum Display Value
OP = Output Power
SP = Active Setpoint Value
dEv = Deviation from the Setpoint value
ANLO
0.0 to 10.0
AnL
IFLt
-1999 to 9999
AnL
Enter the Display Value that corresponds to 0 mA (0-20 mA), 4
mA (4-20 mA) or 0 VDC (0-10 VDC).
Lo
18
Lo
Hi
Enter the probe burn-out action. In the event of a temperature
probe failure, the analog output can be programmed for low or high
scale.
DISPLAY PARAMETERS (dISP)
DISPLAY SELECT
dISP
CNFG
CNFG
ZONE
LOCS
HILO
COdE
Select the display parameters to be programmed.
DISPLAY PARAMETERS: GENERAL CONFIGURATION (CNFG)
Pro
NO
F1
F2
Pro
dISP
P
dISP
CNFG
D
dLEU
dCnt
dSPt
CNFG
rSEt
dSP
dSP
dSP
dSP
dSP
4
7
2
bSIC
NO
Display
Intensity
Display
Contrast
Display
Rate
Menu
Mode
DISPLAY INTENSITY LEVEL
dLEU
dSP
4
OPERATING MODE
CNFG
0 to 4
dSP
Enter the desired Display Intensity Level (0-4) by using the arrow
keys. The display will actively dim or brighten as the levels are
changed. This parameter can also be accessed in the Display,
Parameter or Hidden Loops when enabled.
bSIC
dSP
7
0 to 15
Enter the desired Display Contrast Level (0-15) by using the arrow
keys. The display contrast / viewing angle will actively adjust up or
down as the levels are changed. This parameter can also be accessed
in the Display, Parameter or Hidden Loops when enabled.
DISPLAY UPDATE RATE (/SEC)
dSPt
dSP
2
1
2
5
10
bSIC
AdUC
This parameter configures the unit to operate in Basic or Advanced
Mode. Basic mode offers a reduced menu structure geared towards
simpler applications that may not require the more advanced features
of the PAX2C.
Basic Mode (bSIC):
Maximum of four alarms
Configuration of Display Color Zones is limited to a default
color (no dynamic changing of zone colors based on
mapped parameters)
Advanced Mode(AdUC):
Maximum of sixteen alarms
Full configuration on all seven Display Color Zones
DISPLAY CONTRAST LEVEL
dCnt
Basic Mode
Reset
The following programming step is only available when switching from
Advanced Operating Mode to Basic Operating Mode. The PAX2C Factory
default is Basic Operating Mode.
20
This parameter configures the display update rate. It does not
affect the response time of the setpoint output or analog output option
cards.
BASIC MODE RESET
rSEt
dSP
NO
NO
YES
Resets the unit back to Basic Operating Mode factory defaults.
Warning: Any Advanced Operating Mode configuration in
the unit that is not supported in Basic Operating Mode
will be cleared and reset back to factory defaults.
19
DISPLAY PARAMETERS: ZONE SELECT (ZONE)
ZONE SELECT
ZONE
Ln1
UAn3
P2C
Ln1
Ln2
UAn4
UAn1
Mn
UAn2
Select the zone to be programmed.
DISPLAY PARAMETERS: ZONE CONFIGURATION - LINE 1 & LINE 2 (Ln1 & Ln2)
Pro
NO
F1
F2
Pro
dISP
P
2ONE
P
dISP
2ONE
D
D
n = Line Number (1 or 2)
dSP
ASGN
Colr
UNtS
UNt1
UNt2
UNt3
ASGN
b-Lo
Lnn
Ln1
Lnn
Lnn
°F
°F
°F
Lnn
Lnn
Lnn
INPt
rEd
LISt
OP
0. 0
100. 0
bG1
bG1
bG1
Line 1
Display
Value
Line n
Default
Color
Line n
Units
Mnemonic
°
Line n
Unit 1
Mnemonic
F
Line n
Unit 2
Mnemonic
Line n
Unit 3
Mnemonic
Line n
Bar Graph
Assignment
b-Hi
Line n
Bar Graph
Low Scale
Line n
Bar Graph
High Scale
Advanced Menu Mode Only
Grn
LINE 1 ASSIGNMENT
ASGN
Ln1
INPt
NONE
INPt
HI
ASGN
LO
Lnn
Select the value to be assigned to the primary or top line of the
controller display.
OP
bGn
rEd
Grn
OrNG
b-Lo
rEd
Ln1
Enter the desired Display Line, Bar Graph, and Programmable
Units Display color.
0. 0
°F
ON
Lnn
Lnn
Lnn
Lnn
NONE
NONE
NONE
NONE
NONE
NONE
Line n
Green
Backlight
Assignment
Line n
Orange
Backlight
Assignment
Line n
Line n
Red Backlight Green-Orange
Assignment
Backlight
Assignment
Line n
Red-Orange
Backlight
Assignment
rdGn
Line n
Red-Green
Backlight
Assignment
NONE OP
dEv
SP
Select the parameter to be assigned to Display Line n bar graph.
NONE = Bar Graph is disabled
OP = Output Power
dEv = Deviation from the Setpoint Value
SP = Active Setpoint
-1999 to 9999
Enter the desired Display Line n Bar Graph Low Scaling Point by
using the arrow keys.
LINE n BAR GRAPH HIGH SCALING POINT
b-Hi
LINE n UNITS MNEMONIC
OFF
rEd
bG1
Grn = Green
OrNG = Orange
rEd = Red
UNtS
rdOr
Lnn
LINE n BAR GRAPH LOW SCALING POINT
LINE n DISPLAY COLOR
Lnn
OrNG
LINE n BAR GRAPH ASSIGNMENT
NONE = Line 1 is Disabled
INPt = Input/Process Value
HI = Maximum Display Value
LO = Minimum Display Value
Colr
GnOr
Lnn
Ln1
100. 0
ON
bG1
This parameter allows programming of the display mnemonics
characters. Three individual characters may be selected from a
preprogrammed list.
The characters available for the programmable modes include:
A b C d E F G H I J K L M N O P Q R S t U V W Y Z 0 1
2 3 4 5 6 7 8 9 a c e g h i m n o q r u w - = [ ] / ° _ blank
Two character spaces are required to display this character.
20
-1999 to 9999
Enter the desired Display Line n Bar Graph High Scaling Point by
using the arrow keys.
LINE n GREEN BACKLIGHT ASSIGNMENT
Grn
The following programming steps are only available in the Advanced
Operating Mode.
NONE
These parameters allow Line n backlights to change color, or alternate
between two colors when the mapped parameter is activated. When multiple
backlight assignments are programmed for a particular zone, the color priority
is defined as follows (from Lowest to Highest): Grn, Org, Red, GnOr, RdOr, RdGn
OrNG
Lnn
NONE
NONE = Backlight color change disabled
Out1 = Output 1
Out2 = Output 2
Out3 = Output 3
Out4 = Output 4
ALr = Alarm
MAN = Manual Control Mode
rEd
Lnn
SNGL
Select the parameter to be assigned to Line n Orange Backlight.
NONE Out1 Out2 Out3 Out4 ALr MAN
Lnn
NONE
Select the parameter to be assigned to Line n Red Backlight.
LINE n GREEN-ORANGE BACKLIGHT ASSIGNMENT
GnOr
ALARM LOGIC MODE
And
NONE Out1 Out2 Out3 Out4 ALr MAN
LINE n RED BACKLIGHT ASSIGNMENT
The following two programming steps are only available when the Backlight
Assignment is configured as an Alarm (Alr). These steps apply to each of the six
different backlight color assignment parameters.
SNGL
Select the parameter to be assigned to Line n Green Backlight.
LINE n ORANGE BACKLIGHT ASSIGNMENT
BACKLIGHT ASSIGNMENT SELECTIONS
LGIC
NONE Out1 Out2 Out3 Out4 ALr MAN
Lnn
Lnn
NONE
Or
NONE Out1 Out2 Out3 Out4 ALr MAN
Select the parameter to be assigned to Line n Green-Orange
Backlight.
The PAX2C supports three different modes when an output is
assigned as an alarm:
SNGL = Any single alarm
And
Or
LINE n RED-ORANGE BACKLIGHT ASSIGNMENT
= Allows multiple alarms to be mapped to an output
using AND Boolean logic. For example: If AL1 and
AL2 are active, the output will energize.
= Allows multiple alarms to be mapped to an output
using OR Boolean logic. For example: If AL1 or
AL2 are active, the output will energize.
rdOr
Lnn
NONE
NONE Out1 Out2 Out3 Out4 ALr MAN
Select the parameter to be assigned to Line n Red-Orange
Backlight.
ALARM MASK ASSIGNMENT
ASEL
Lnn
NO
An
NO
LINE n RED-GREEN BACKLIGHT ASSIGNMENT
YES
rdGn
Selects the alarms to be logically combined per the Alarm Logic
Mode selection. Any alarms configured as YES will be used in the
Boolean logic calculation. If the Alarm Logic Mode is assigned as
Single (SNGL), the last alarm selected as YES will be used.
Lnn
NONE
21
NONE Out1 Out2 Out3 Out4 ALr MAN
Select the parameter to be assigned to Line n Red-Green
Backlight.
DISPLAY PARAMETERS: ZONE CONFIGURATION - UNIVERSAL ANNUNCIATORS 1-4 (UAnn)
Pro
NO
F1
F2
Pro
dISP
P
2ONE
P
dISP
2ONE
D
D
n = UA Number (1 - 4)
Advanced Menu Mode Only
dSP
Colr
UAnn
UAn1
UAn2
AdSP
ASGN
GnOr
rdOr
UAnn
UAn
UAn
UAn
UAn
UAn
UAn
UAn
UAn
UAn
UAn
UAn
UAn
Grn
LISt
nor
Out1
NONE
NONE
NONE
NONE
NONE
NONE
Univ Annun n
Assignment
Univ Annun n
Green
Backlight
Assignment
Univ Annun n
Orange
Backlight
Assignment
Univ Annun n
Red Backlight
Assignment
Univ Annun n
Green-Orange
Backlight
Assignment
Univ Annun n
Red-Orange
Backlight
Assignment
Univ Annun n
Red-Green
Backlight
Assignment
Univ Annun n
Default Color
Univ Annun n
Units
Mnemonic
0
Univ Annun n
Unit 1
Mnemonic
1
Univ Annun n
Unit 2
Mnemonic
Univ Annun n
Display Mode
Grn
OrNG
rEd
rdGn
UNIVERSAL ANNUNCIATOR n DISPLAY COLOR
Colr
Grn
UAn
rEd
OrNG rEd
The following programming steps are only available in the Advanced
Operating Mode.
Enter the desired Universal Annunciator Display color.
Grn = Green
OrNG = Orange
rEd = Red
These parameters allow Universal Annunciator n backlights to change color,
or alternate between two colors when the mapped parameter is activated. When
multiple backlight assignments are programmed for a particular zone, the color
priority is defined as follows (from Lowest to Highest): Grn, OrG, rEd, GnOr, rdOr,
rdGn
UNIVERSAL ANNUNCIATOR n UNITS MNEMONIC
UNtS
OFF
UAn
ON
BACKLIGHT ASSIGNMENT SELECTIONS
ON
NONE = Backlight color change disabled
Out1 = Output 1
Out2 = Output 2
Out3 = Output 3
Out4 = Output 4
ALr = Alarm
MAN = Manual Control Mode
This parameter allows programming of the display mnemonics
characters. Two individual characters may be selected from a
preprogrammed list.
The characters available for the programmable modes include:
A b C d E F G H I J K L M N O P Q R S t U V W Y Z 0 1
2 3 4 5 6 7 8 9 a c e g h i m n o q r u w - = [ ] / ° _ blank
Two character spaces are required to display this character.
The following two programming steps are only available when the Backlight
Assignment is configured as an Alarm (Alr). These steps apply to each of the six
different backlight color assignment parameters.
UNIVERSAL ANNUNCIATOR n DISPLAY MODE
AdSP
UAn
nor
nor
rEv
FLSh
Enter the desired Universal Annunciator Display Mode. This
parameter is available when the Universal Annunciator is in List
(LISt) Mode.
ALARM LOGIC MODE
nor = Displays the configured universal annunciator
LGIC
rEv
SNGL
FLSh
when the mapped parameter is activated (on).
= Displays the configured universal annunciator
when the mapped parameter is deactivated (off).
= Flashes the configured universal annunciator
when the mapped parameter is activated (on).
UAn
UAn
NONE
And
Or
The PAX2C supports three different modes when an output is
assigned as an alarm:
SNGL = Any single alarm
And = Allows multiple alarms to be mapped to an output
UNIVERSAL ANNUNCIATOR n ASSIGNMENT
ASGN
SNGL
Or
NONE Out1 Out2 Out3 Out4 ALr MAN
Selects the parameter that enables the Universal Annunciator
mnemonic to be displayed. If the mapped parameter is active, the
mnemonic is displayed. If the mapped parameter is not active, the
mnemonic will be disabled (off).
using AND Boolean logic. For example: If AL1
and AL2 are active, the output will energize.
= Allows multiple alarms to be mapped to an output
using OR Boolean logic. For example: If AL1 or
AL2 are active, the output will energize.
ALARM MASK ASSIGNMENT
ASEL
NONE = Universal Annunciator text is disabled
Out1 = Output 1
Out2 = Output 2
Out3 = Output 3
Out4 = Output 4
ALr = Alarm
MAN = Manual Control Mode
UAn
NO
An
22
NO
YES
Selects the alarms to be logically combined per the Alarm Logic
Mode selection. Any alarms configured as YES will be used in the
Boolean logic calculation. If the Alarm Logic Mode is assigned as
Single (SNGL), the last alarm selected as YES will be used.
UNIVERSAL ANNUNCIATOR n GREEN
BACKLIGHT ASSIGNMENT
Grn
UAn
NONE
OrNG
UAn
NONE
NONE Out1 Out2 Out3 Out4 ALr MAN
Select the parameter to be used to activate the Green backlight on
Universal Annunciator n.
UNIVERSAL ANNUNCIATOR n ORANGE
BACKLIGHT ASSIGNMENT
NONE Out1 Out2 Out3 Out4 ALr MAN
Select the parameter to be used to activate the Orange backlight on
Universal Annunciator n.
UNIVERSAL ANNUNCIATOR n RED
BACKLIGHT ASSIGNMENT
rEd
UAn
NONE
NONE Out1 Out2 Out3 Out4 ALr MAN
Select the parameter to be used to activate the Red backlight on
Universal Annunciator n.
UNIVERSAL ANNUNCIATOR n GREEN-ORANGE
BACKLIGHT ASSIGNMENT
GnOr
UAn
NONE
rdOr
UAn
NONE
rdGn
UAn
NONE
NONE Out1 Out2 Out3 Out4 ALr MAN
Select the parameter to be used to activate the Green-Orange
backlight on Universal Annunciator n.
UNIVERSAL ANNUNCIATOR n RED-ORANGE
BACKLIGHT ASSIGNMENT
NONE Out1 Out2 Out3 Out4 ALr MAN
Select the parameter to be used to activate the Red-Orange
backlight on Universal Annunciator n.
UNIVERSAL ANNUNCIATOR n RED-GREEN
BACKLIGHT ASSIGNMENT
NONE Out1 Out2 Out3 Out4 ALr MAN
Select the parameter to be used to activate the Red-Green
backlight on Universal Annunciator n.
23
DISPLAY PARAMETERS: ZONE CONFIGURATION - MNEMONICS (Mn)
Pro
NO
F2
F1
Pro
dISP
P
2ONE
P
dISP
dSP
2ONE
D
D
Mn
Advanced Menu Mode Only
Colr
GnOr
rdOr
Mn
Mn
Mn
Mn
Mn
Mn
Mn
Grn
NONE
NONE
NONE
NONE
NONE
NONE
Mnemonics
Green
Backlight
Assignment
Mnemonics
Orange
Backlight
Assignment
Mnemonics
Red Backlight
Assignment
Mnemonics
Green-Orange
Backlight
Assignment
Mnemonics
Red-Orange
Backlight
Assignment
Mnemonics
Red-Green
Backlight
Assignment
Mnemonics
Default Color
Grn
OrNG
MNEMONICS DISPLAY COLOR
Colr
UAn
rEd
Grn
OrNG
rdGn
MNEMONICS GREEN BACKLIGHT ASSIGNMENT
Grn
rEd
Mn
Enter the desired Mnemonics Display color.
Grn
OrNG
rEd
rEd
NONE
= Green
= Orange
= Red
NONE Out1 Out2 Out3 Out4 ALr MAN
Select the parameter to be used to activate the mnemonic Green
backlight.
MNEMONICS ORANGE BACKLIGHT ASSIGNMENT
The following programming steps are only available in the Advanced
Operating Mode.
OrNG
These parameters allow the mnemonic backlights to change color, or alternate
between two colors when the mapped parameter is activated. When multiple
backlight assignments are programmed for a particular zone, the color priority
is defined as follows (from Lowest to Highest): Grn, OrG, rEd, GnOr, rdOr, rdGn
Mn
NONE
NONE Out1 Out2 Out3 Out4 ALr MAN
Select the parameter to be used to activate the mnemonic Orange
backlight.
BACKLIGHT ASSIGNMENT SELECTIONS
MNEMONICS RED BACKLIGHT ASSIGNMENT
NONE = Backlight color change disabled
Out1 = Output 1
Out2 = Output 2
Out3 = Output 3
Out4 = Output 4
ALr = Alarm
MAN = Manual Control Mode
rEd
Mn
NONE
GnOr
Mn
ALARM LOGIC MODE
UAn
SNGL
SNGL
And
NONE
rdOr
using AND Boolean logic. For example: If AL1
and AL2 are active, the output will energize.
= Allows multiple alarms to be mapped to an output
using OR Boolean logic. For example: If AL1 or
AL2 are active, the output will energize.
Mn
NONE
NO
An
NO
NONE Out1 Out2 Out3 Out4 ALr MAN
Select the parameter to be used to activate the mnemonic RedOrange backlight.
MNEMONICS RED-GREEN BACKLIGHT ASSIGNMENT
ALARM MASK ASSIGNMENT
UAn
Select the parameter to be used to activate the mnemonic GreenOrange backlight.
MNEMONICS RED-ORANGE BACKLIGHT ASSIGNMENT
SNGL = Any single alarm
And = Allows multiple alarms to be mapped to an output
ASEL
NONE Out1 Out2 Out3 Out4 ALr MAN
Or
The PAX2C supports three different modes when an output is
assigned as an alarm:
Or
Select the parameter to be used to activate the mnemonic Red
backlight.
MNEMONICS GREEN-ORANGE BACKLIGHT ASSIGNMENT
The following two programming steps are only available when the Backlight
Assignment is configured as an Alarm (Alr). These steps apply to each of the six
different backlight color assignment parameters.
LGIC
NONE Out1 Out2 Out3 Out4 ALr MAN
rdGn
YES
UAn
Selects the alarms to be logically combined per the Alarm Logic
Mode selection. Any alarms configured as YES will be used in the
Boolean logic calculation. If the Alarm Logic Mode is assigned as
Single (SNGL), only one alarm may be selected at a time.
NONE
24
NONE Out1 Out2 Out3 Out4 ALr MAN
Select the parameter to be used to activate the mnemonic RedGreen backlight.
DISPLAY PARAMETERS: LINE 2 PARAMETERS (LOCS)
Line 2 Value Access Configuration
This section details programming for the Line 2 (Bottom Line) Display.
Various Input, Display, PID, Alarm, and Function Parameters can be shown on
the Line 2 display. The display loops described below are used to view, reset and
modify the selected display values, based on the Line 2 Value Access setting
programmed for each available value.
Line 2 values can be made accessible in either the Main (D key), Parameter
(P key) or Hidden (P key following code entry) display loops. When the List
parameter is configured for an Ent setting, a List assignment submenu will
follow. Refer to Input module, User sub-menu section for a description of the
function. Each parameter must be configured for one of the following settings.
Not all settings are available for each parameter, as shown in the Parameter
Value Access table.
Main Display Loop
In the Main display loop, the selected values can be consecutively read on
Line 2 by pressing the D key. The lower 3-character units mnemonic indicates
which Line 2 value is currently shown. When in the Main display loop, the
Function keys  and  perform the User functions programmed in the User
Input program section.
Parameter Display Loop and Hidden Parameter
Loop
These display loops provide quick access to selected parameters that can be
viewed and modified on Line 2 without having to enter Full Programming
Mode. To utilize the Hidden Parameter display loop, a security code (1-250)
must be programmed. (See Security Code Configuration at the end of this
section.)The Parameter display loop is accessed by pressing the P key. The
selected Parameter display loop values can be viewed and/or changed per the
Line 2 Value Access setting programmed for each available value. The Hidden
Parameter loop follows the Parameter display loop, and can only be accessed
when the correct security code is entered at the Code prompt.
SELECTION
DESCRIPTION
LOC
drEd
dEnt
PrEd
PEnt
HrEd
HEnt
Not viewed on Line 2 Display (Factory Default Setting).
View in Main display loop. Cannot change or reset.
View and change in Main display loop.
View in Parameter display loop. Cannot change or reset.
View and change in Parameter display loop.
View in Hidden display loop. Cannot change or reset.
View and change in Hidden display loop.
LINE 2 PARAMETER VALUE ACCESS
DISPLAY
INPt
HI
LO
dLEU
dCnt
SP
SP1
SP2
OP
dEv
SPrP
Pid ACt
Pid Pri
Pid ALt
ALn
bdn
SPSL
SPrP
ILOC
trnF
PSEL
tunE
r-HI
r-Lo
r-HL
r-AL
LISt
Prnt
DESCRIPTION
NOT
VIEWED
MENU DISPLAY LOOP
(D KEY)
dEnt
PARAMETER DISPLAY
LOOP (P KEY)
pPrEd
pPEnt
HIDDEN LOOP
LOC
drEd
Input
x
x
Max Value
x
x
x
x
x
x
x
Min Value
x
x
x
x
x
x
x
Display Intensity Level
x
x
x
x
x
x
x
Display Contrast Level
x
x
x
x
x
x
x
Actual Setpoint Value
x
x
x
x
x
x
x
Setpoint 1 Value
x
x
x
x
x
x
x
Setpoint 2 Value
x
x
x
x
x
x
x
x
x
x
x
x
x
HrEd
HEnt
x
Output Power (must be in manual mode to edit)
x
x
Deviation
x
x
Setpoint Ramping
x
x
x
x
x
x
x
Actual PID Values: P, I & D
x
x
x
x
x
x
x
Primary PID Values: P, I & D
x
x
x
x
x
x
x
Alternate PID Values: P, I & D
x
x
x
x
x
x
x
Alarm Values: Basic Mode (1-4), Advanced Mode (1-16)
x
x
x
x
x
x
x
Band/Deviation
x
x
x
x
x
x
x
Setpoint Selection
x
x
x
x
x
x
x
Setpoint Ramping
x
x
x
x
x
x
x
Integral Lock
x
x
x
x
x
x
x
Manual/Auto Control Mode
x
x
x
x
x
x
x
PID Parameter Selection
x
x
x
x
x
x
x
Tuning Enable
x
x
x
x
x
x
x
Reset Maximum Value
x
x
x
x
Reset Minimum Value
x
x
x
x
Reset Max and Min Values
x
x
x
x
Reset Alarms
x
Parameter List A/B Access
x
Print Request
x
25
x
x
x
x
x
x
x
x
x
x
x
x
x
x
LINE 2 VALUE ACCESS PARAMETER SELECTION
LOCS
INPt
Ln2
INPt
dISP
Pid
ALr
FNCt
Select the display parameters to be displayed.
DISPLAY PARAMETERS: LINE 2 PARAMETER VALUE ACCESS - INPUT (INPt)
Pro
NO
F1
F2
Pro
dISP
P
LOCS
P
dISP
LOCS
D
D
Ln2
INPt
INPt
Ln2
Ln2
Ln2
LOC
LOC
LOC
Line 2
MAX
Access
Line 2
MIN
Access
Line 2
Input Value
Access
HI
LO
LINE 2 INPUT ACCESS
INPt
LOC
Ln2
LOC
drEd
PrEd
LINE 2 MIN ACCESS
LO
HrEd
Ln2
LOC
Displays the controller process input reading on Line 2.
LINE 2 MAX ACCESS
HI
Ln2
LOC
LOC
drEd
dEnt
PrEd
PEnt
HrEd
HEnt
When configured for dEnt, PEnt or HEnt, the Max Display value can
be reset using a front keypad sequence. To reset, push the P key
while viewing the Hi value on Line 2. The display will show rHI NO.
Press the  key to select YES and then press P key. The display will
indicate rSEt and then return to the Hi value parameter.
26
LOC
drEd
dEnt
PrEd
PEnt
HrEd
HEnt
When configured for dEnt, PEnt or HEnt, the Min Display value can
be reset using a front keypad sequence. To reset, push the P key
while viewing the Lo value on Line 2. The display will show rLo NO.
Press the  key to select YES and then press P key. The display will
indicate rSEt and then return to the Lo value parameter.
DISPLAY PARAMETERS: LINE 2 PARAMETER VALUE ACCESS - DISPLAY (dISP)
Pro
NO
F1
F2
Pro
dISP
P
LOCS
P
dISP
LOCS
D
D
Ln2
dLEU
dCnt
dISP
Ln2
Ln2
LOC
LOC
Line 2
Display Level
Access
LINE 2 DISPLAY INTENSITY LEVEL
dLEU
Ln2
LOC
LOC
drEd
dEnt
PrEd
PEnt
HrEd
Line 2
Display Contrast
Access
LINE 2 DISPLAY CONTRAST LEVEL
dCnt
HEnt
Ln2
LOC
When configured for dEnt, PEnt or HEnt, the display intensity can
be adjusted in the selected display loop by using the  and  keys
while viewing dLEU.
27
LOC
drEd
dEnt
PrEd
PEnt
HrEd
HEnt
When configured for dEnt, PEnt or HEnt, the display contrast can be
adjusted in the selected display loop by using the  and  keys
while viewing dCnt.
DISPLAY PARAMETERS: LINE 2 PARAMETER VALUE ACCESS - PID (Pid)
Pro
NO
F1
F2
Pro
dISP
P
LOCS
P
dISP
D
SP
Ln2
LOCS
D
Pid
SP1
SP2
OP
dEv
LOC
LOC
drEd
dEnt
PrEd
Ln2
Ln2
Ln2
Ln2
Ln2
Ln2
LOC
LOC
LOC
LOC
LOC
LOC
LOC
LOC
LOC
ACt
Pri
ALt
Line 2
Setpoint 1
Access
Line 2
Setpoint 2
Access
Line 2
Output Power
Access
PEnt
HrEd
Line 2
Deviation
Access
Line 2
SP Ramping
Access
LOC
drEd
dEnt
PrEd
PEnt
SPrP
HEnt
Ln2
LOC
HrEd
Pid
HEnt
Ln2
LOC
drEd
dEnt
PrEd
PEnt
LOC
LOC
drEd
dEnt
PrEd
PEnt
Ln2
HEnt
Pid
LOC
drEd
PrEd
PEnt
HrEd
HEnt
When configured for dEnt, PEnt or HEnt, the Setpoint Ramping
value can be adjusted in the selected display loop by using the  and
 keys while viewing SPrP. When configured for dEnt, the P key
must be pressed to select the item prior to changing the value.
LOC
drEd
dEnt
PrEd
PEnt
HrEd
HEnt
HrEd
LOC
drEd
dEnt
PrEd
PEnt
HrEd
HEnt
Ln2
When configured for dEnt, PEnt or HEnt, the Primary PID values (P,
I & D) can be adjusted in the selected display loop by using the 
Pri and  keys while viewing the selected parameter. When configured
for dEnt, the P key must be pressed to select the item prior to
changing the value.
LOC
LINE 2 ALTERNATE PID VALUES
HEnt
Pid
Displays the Output Power value on Line 2 in the selected display
loop. In manual mode, the value can be adjusted in the selected
display loop by using the F1 and F2 keys. When configured for dEnt,
the P key must be pressed to select the item prior to changing the
value.
LOC
PrEd
LINE 2 PRIMARY PID VALUES
HrEd
Ln2
LOC
drEd
dEnt
PrEd
PEnt
HrEd
HEnt
When configured for dEnt, PEnt or HEnt, the Alternate PID values
(P, I & D) can be adjusted in the selected display loop by using the
ALt  and  keys while viewing the selected parameter. When
configured for dEnt, the P key must be pressed to select the item prior
to changing the value.
LOC
LINE 2 DEVIATION VALUE
dEv
dEnt
LOC
When configured for dEnt, PEnt or HEnt, the Setpoint 2 value can
be adjusted in the selected display loop by using the  and  keys
while viewing SP2. When configured for dEnt, the P key must be
pressed to select the item prior to changing the value.
LOC
Ln2
drEd
When configured for dEnt, PEnt or HEnt, the Actual PID values (P,
I & D) can be adjusted in the selected display loop by using the 
ACt and  keys while viewing the selected parameter. When configured
for dEnt, the P key must be pressed to select the item prior to
changing the value.
LINE 2 OUTPUT POWER VALUE
OP
Line 2
Alternate PID
Access
Ln2
When configured for dEnt, PEnt or HEnt, the Setpoint 1 value can
be adjusted in the selected display loop by using the  and  keys
while viewing SP1. When configured for dEnt, the P key must be
pressed to select the item prior to changing the value.
LOC
Line 2
Primary PID
Access
LINE 2 ACTUAL PID VALUES
LINE 2 SETPOINT 2 VALUE
SP2
Line 2
Actual PID
Access
LINE 2 SETPOINT RAMPING VALUE
When configured for dEnt, PEnt or HEnt, the active setpoint value
can be adjusted in the selected display loop by using the  and 
keys while viewing SP. When configured for d-ENt, the P key must
be pressed to select the item prior to changing the value.
LOC
Pid
Ln2
LINE 2 SETPOINT 1 VALUE
SP1
Pid
Ln2
LINE 2 ACTIVE SETPOINT VALUE
Ln2
Pid
Ln2
Line 2
Actual Setpoint
Access
SP
SPrP
Ln2
HrEd
Displays the difference between Temp/Process and the Actual
Setpoint value on Line 2 in the selected display loop.
28
DISPLAY PARAMETERS: LINE 2 PARAMETER VALUE ACCESS - ALARMS (ALr)
Pro
NO
F1
F2
Pro
dISP
P
LOCS
P
dISP
ALn
Ln2
LOCS
D
D
bdn
Ln2
Ln2
LOC
LOC
Line 2
Alarm n
Access
Line 2
Band n
Access
ALr
LINE 2 ALARM ACCESS
ALn
LOC
Ln2
LOC
drEd
dEnt
PrEd
PEnt
LINE 2 BAND/DEVIATION ACCESS
HrEd
bdn
HEnt
LOC
Ln2
LOC
When configured for dEnt, PEnt or HEnt, the Alarm n value can be
adjusted in the selected display loop by using the  and  keys
while viewing ALn. When configured for dEnt, the P key must be
pressed to select the item prior to changing the value.
drEd
dEnt
PrEd
PEnt
HrEd
HEnt
When configured for dEnt, PEnt or HEnt, the Band/Deviation n
value can be adjusted in the selected display loop by using the  and
 keys while viewing bdn. When configured for dEnt, the P key
must be pressed to select the item prior to changing the value.
Basic Mode: 4 alarms max
Advanced Mode: 16 alarms max
DISPLAY PARAMETERS: LINE 2 USER FUNCTION ACCESS - FUNCTIONS (Fnct)
Pro
NO
F1
F2
Pro
dISP
P
LOCS
P
dISP
LOCS
D
D
Ln2
SPSL
SPrP
ILOC
trnF
PSEL
tunE
r-HI
r-Lo
r-HL
r-AL
LISt
FNCt
Ln2
Ln2
Ln2
Ln2
Ln2
Ln2
Ln2
Ln2
Ln2
Ln2
Ln2
Ln2
LOC
LOC
LOC
LOC
LOC
LOC
LOC
LOC
LOC
LOC
LOC
LOC
Line 2
List A/B
Access
Line 2
Print
Access
Line 2
Line 2
Setpoint Select
Setpoint
Access
Ramping Access
Line 2
Integral Lock
Access
Line 2
Manual/Auto
Access
Line 2
PID Select
Access
Line 2
Tuning Select
Access
LINE 2 USER FUNCTION ACCESSIBLE ITEMS
ILOC
trnF
PSEL
tunE
r-HI
r-Lo
r-HL
r-AL
Line 2
Reset Low
Access
Line 2
Reset High-Low
Access
Line 2
Reset Alarm
Access
LINE 2 PARAMETER LIST A/B ACCESS
LISt
The following list of User functions can be made available in the Display
(dEnt), Parameter (PEnt) or Hidden (HEnt) display loops. The more critical and
frequently used Functions should be first assigned to the User Inputs and User
Function keys. If more functions are needed than what can be obtained with
User Inputs, this feature will provide a means to provide that access. Please refer
to the USER INPUT / FUNCTION KEY PARAMETERS (USEr) section for a
detailed description of the available functions.
SPSL
SPrP
Line 2
Reset High
Access
Prnt
Ln2
LOC
LOC
drEd
dEnt
PrEd
PEnt
HrEd
HEnt
When configured for dEnt, PEnt or HEnt, the Parameter list can be
selected using a front keypad sequence. To select, push the P key
while viewing LISt x”. “x” will begin to flash, press the  key to
select “A” or “b” and then press P key. The selected Parameter List
will become active and the display will advance to the next available item or
menu loop. See User Functions “Select Parameter List” for a description of the
list function. The Line 2 Parameter List provides a means of setting or viewing
the active parameter list.
LISt*
Prnt
* Also available as a read-only item in the Display (drEd), Parameter (PrEd)
or Hidden (HrEd) Display loops.
29
DISPLAY PARAMETERS: DISPLAY MIN/MAX CONFIGURATION (HILO)
Pro
NO
F2
F1
Pro
dISP
P
dISP
HILO
D
Hi-t
LO-t
SCN
SCN
1. 0
1. 0
SEC
SEC
MAX Capture
Delay Time
MAX CAPTURE DELAY TIME
HI-t
0.0 to 25.0
SCN
MIN Capture
Delay Time
MIN CAPTURE DELAY TIME
LO-t
seconds
0.0 to 25.0
SCN
When the Input Display is above the present MAX value for the
entered delay time, the controller will capture that display value as
SEC
the new MAX reading. A delay time helps to avoid false captures of
sudden short spikes.
seconds
When the Input Display is below the present MIN value for the
entered delay time, the controller will capture that display value as
SEC
the new MIN reading. A delay time helps to avoid false captures of
sudden short spikes.
1. 0
1. 0
DISPLAY PARAMETERS: SECURITY CODE CONFIGURATION (COdE)
Pro
NO
F1
F2
Pro
dISP
P
dISP
COdE
D
COdE
dSP
0
Programming
Security Code
PROGRAMMING SECURITY CODE
COdE
dSP
SECURITY USER INPUT
CODE
CONFIGURED
0 to 250
>0
The Security Code determines the programming mode and the
accessibility of programming parameters. This code can be used
along with the Program Mode Lock-out (PLOC) in the User Input
Function parameter (Input [User] module).
To activate the Hidden Parameter display loop, a security code
(1-250) must be entered. If a “0” security code is programmed, Full Programming
Mode is available following the Parameter Loop. Pressing the P key takes you
into, and is used to step through the Parameter Loop. Two modes are available.
Full Programming mode allows all parameters to be viewed and modified.
Parameter display loop mode provides access to those selected parameters that
can be viewed and/or modified without entering the Full Programming mode.
The following chart indicates the levels of access based on various CodE and
User Input PLOC settings.
0
0
0
30
PLOC or
Not Active
PLOC
PLOC or
Not Active
USER INPUT
STATE
HIDDEN AND FULL
PROGRAMMING MODE ACCESS
Any State
After Parameter Display Loop with
correct code # at COdE prompt.
Active
Not Active
No Access
Access after Parameter Display Loop
PID PARAMETERS (Pid)
PID PARAMETER MENU SELECTION
Pid
P2C
CtrL
CtrL
SP
Pid
PWr
ONOF
tunE
Select the PID parameter menu to be programmed.
PID PARAMETERS: CONTROL PARAMETERS (CtrL)
Pro
NO
F1
F2
Pro
Pid
P
Pid
CtrL
D
tYPE
HEAt
HEAt
COOL
HEAt
Auto
Control
Type
Control
Mode
botH
Select the type of PID control desired. When programmed for
Heating action (reverse), the output power decreases when the
Process Value is above the setpoint value. When programmed for
Cooling (direct), the output power will increase if the Process value
is above the Setpoint Value.
PID CONTROL MODE
trnF
Auto
MAN
Select Automatic or Manual Operation. In Automatic (Auto) mode
(closed loop; On/Off, or PID Control), the controller calculates the
required output to reach and maintain setpoint, and acts accordingly.
In manual mode (MAN), the calculated PID algorithm heat and cool
output percentages are not used to control the controller outputs. The
unit is instead placed into an open loop mode where the control does not work
from a setpoint or process feedback.
Auto
The following programming step is only available when PID Control Mode
is set to Manual Mode (MAN).
OUTPUT POWER
OP
-100.0 to 100.0 %
USr
0. 0
OP
USr
PID CONTROL TYPE
tYPE
trnF
Manual Output Power is the level the PID module will assume in
manual mode.
31
0. 0
Manual Output
Power
PID PARAMETERS: SETPOINT PARAMETERS (SP)
Pro
NO
F1
F2
Pro
Pid
P
Pid
SPSL
SP
SP1
D
Setpoint
Selection
SP1
SP2
SPLO
SPHI
SPrP
SPrr
OFF
0. 0
0. 0
0. 0
0. 0
999. 9
°F
°F
°F
°F
Setpoint 1
Value
Setpoint 2
Value
Setpoint
Low Limit
Setpoint
High Limit
SETPOINT SELECTION
SPSL
SP1
SP1
SPHI
SP2
-1999 to 9999
999. 9
SETPOINT RAMPING TIMEBASE
SPrP
One of the two values that may be selected as the target setpoint
of the process.
OFF
°F
OFF SEC
MIN
hour
Select the desired unit of time for ramping of the process:
OFF = Off
SEC = Seconds
MIN = Minutes
hour = Hours
SETPOINT 2 VALUE
SP2
Setpoint
Ramp Rate
Select the desired Setpoint High Limit value. This value should be
selected so that the controller setpoint value cannot be set outside the
°F safe operating range of the process.
Select the desired Setpoint Value (SP1 or SP2) to use as the control
point. The SP Select function can also be configured in the Display
Parameter LOCS Menu (Pid LOCS) or a User Input or Function Key can
be assigned to the Setpoint Select Function.
-1999 to 9999
0. 0
Setpoint
Ramping
Timebase
SETPOINT HIGH LIMIT
SETPOINT 1 VALUE
SP1
°F
-1999 to 9999
0. 0
One of the two values that may be selected as the target setpoint
of the process.
SETPOINT RAMP RATE
°F
SPrr
The Ramp Rate property is used to reduce sudden shock to a
process during setpoint changes and system startup, a setpoint ramp
°F rate can be used to increase or decrease the Target Setpoint at a
controlled rate. The value is entered in units/time. A value of 0
disables setpoint ramping. If the Setpoint Ramp Rate is a non-zero
value, and the Actual Setpoint is changed or the controller is powered up, the
controller sets the Target Setpoint to the current process measurement, and uses
that value as its setpoint. It then adjusts the Target Setpoint according to the
setpoint Ramp Rate. When the Target Setpoint reaches the Actual Setpoint, the
controller resumes use of the Actual Setpoint value. (In a properly designed and
functioning system, the process will have followed the Target Setpoint value to
the Actual Setpoint value.)
0. 0
SETPOINT LOW LIMIT
SPLO
0 to 9999
-1999 to 9999
Select the desired Setpoint Low Limit value. This value should be
selected so that the controller setpoint value cannot be set outside the
°F safe operating range of the process.
0. 0
32
PID PARAMETERS: PID PARAMETERS (Pid)
Pro
NO
F1
F2
Pro
Pid
P
Pid
Pid
D
Pid
ProP
Intt
dErt
FLtr
OPOF
ProP
Intt
dErt
FLtr
OPOF
Pri
4. 0
120
30
1. 0
1. 0
4. 0
120
30
1. 0
0. 0
SEL
Pri
Pri
Pri
Pri
Pri
ALt
ALt
ALt
ALt
ALt
PID
Parameter
Selection
Primary
Proportional
Band Value
Primary
Integral
Time Value
Primary
Derivative
Time Value
Primary
Power Filter
Value
Primary
Output Offset
Value
PID PARAMETER SELECTION
Pid
Pri
FLtr
ALt
Select the desired set of PID Values (Primary or Alternate) that
will be used in the PID calculation. The PID Parameter Selection
SEL function can also be configured in the Display Parameter LOCS Menu
(Pid LOCS) or a User Input or Function Key can be assigned to the PID
Parameter Selection Function.
1. 0
PRIMARY/ALTERNATE PROPORTIONAL BAND
OPOF
4. 0
0. 0
PRIMARY/ALTERNATE INTEGRAL TIME
120
0 to 65000 seconds
The Integral Time is the time in seconds that it takes the integral
action to equal the proportional action, during a constant process
error. As long as the error exists, integral action is repeated each
Integral Time. The higher the value, the slower the response. The
optimal value may be established by invoking autotune.
PRIMARY/ALTERNATE DERIVATIVE TIME
dErt
Alternate
Derivative
Time Value
Alternate
Power Filter
Value
Alternate
Output Offset
Value
0 to 60.0 seconds
The Power Filter is a time constant, entered in seconds, that
dampens the calculated output power. Increasing the value increases
the dampening effect. Generally, a Power Filter in the range of onetwentieth to one-fiftieth of the controller’s integral time (or process
time constant) is effective. Values longer than these may cause
controller instability due to the added lag effect.
PRIMARY/ALTERNATE OUTPUT OFFSET
0 to 999.9 %
The Proportional Band property, entered as a percentage of the full
input range, is the amount of input change required to vary the output
full scale. For temperature inputs, the input range is fixed per the
entered thermocouple or RTD type. For process inputs, the input
range is the difference between the Process at 0%, and Process at
100% values. The Proportional Band is adjustable from 0.0% to 999.9%, and
should be set to a value that provides the best response to a process disturbance
while minimizing overshoot. A Proportional Band of 0.0% forces the controller
into On/Off Control with its characteristic cycling at setpoint. The optimal value
may be established by invoking Auto-tune.
Intt
Alternate
Integral
Time Value
PRIMARY/ALTERNATE POWER FILTER
Pri
ProP
Alternate
Proportional
Band Value
0 to 9999 seconds
The Derivative Time is the seconds per repeat that the controller
looks ahead at the ramping error to see what the proportional
contribution will be and then matches that value every Derivative
Time. As long as the ramping error exists, the derivative contribution
is repeated every derivative time. Increasing the value helps to
stabilize the response. Too high of a value, coupled with noisy signal
processes, may cause the output to fluctuate too greatly, yielding poor control.
Setting the time to zero disables derivative action. The optimal Derivative Time
may be established by invoking auto-tune.
30
33
-100.0 to 100.0
This value effectively shifts the zero output point of the module’s
output power calculation. This feature is most commonly used in
proportional-only applications to remove steady-state error.
PID PARAMETERS: OUTPUT POWER PARAMETERS (PWr)
Pro
NO
F1
F2
Pro
Pid
P
Pid
PWr
D
FLtP
dEAd
HtGn
HtLo
HtHi
CLGn
CLLo
CLHi
50. 0
0. 0
100. 0
0. 0
100. 0
100. 0
0. 0
100. 0
°/o
°/o
°/o
°/o
°/o
°/o
°/o
°/o
Output
Deadband
Output
Heat Gain
Fault Condition
Power Value
Heat Power
Low Limit
FAULT CONDITION POWER VALUE
FLtP
CLGN
-199.9 to 200.0 %
Enter the desired control output value for the controller to assume
in the event that the input sensor fails. You may enter values in excess
°/o of 100% and -100% to overcome limitations caused by Power
Transfer Values, such as Gains and Offsets, that would otherwise
limit the output to less than their maximums.
Cool Power
High Limit
0 to 500.0 %
The Output Cool Gain defines the gain of the cooling output
relative to the gain established by the Proportional Band. A value of
°/o 100% causes the cool gain to mimic the gain determined by the
proportional band. A value less than 100% can be used in applications
in which the cooling device is oversized, while a value greater than
100% can be used when the cooling device is undersized. For the majority of
applications the default value of 100% is adequate, and adjustments should only
be made if the process requires it.
-100.0 to 100.0 %
The Output Deadband property defines the area in which both the
heating and cooling outputs are inactive, known as deadband, or the
°/o area in which they will both be active, known as overlap. A positive
value results in a deadband, while a negative value results in an
overlap.
0. 0
COOL POWER LOW AND HIGH LIMITS
CLLo
0 to 200.0 %
The Cool Low Limit and Cool High Limit properties may be used
to limit controller power due to process disturbances or setpoint
°/o changes. Enter the safe output power limits for the process. You may
enter values in excess of –100% to overcome limitations caused by
power transfer values, such as gains and offsets, which would
otherwise limit the output to less than their maximums.
0. 0
OUTPUT HEAT GAIN
0 to 500.0 %
The Output Heat Gain defines the gain of the heating output
relative to the gain established by the Proportional Band. A value of
°/o 100% causes the heat gain to mimic the gain determined by the
proportional band. A value less than 100% can be used in applications
in which the heater is oversized, while a value greater than 100% can
be used when the heater is undersized. For the majority of applications the
default value of 100% is adequate, and adjustments should only be made if the
process requires it.
100. 0
CLHi
100. 0
°/o
HEAT POWER LOW AND HIGH LIMITS
HtLo
Cool Power
Low Limit
100. 0
OUTPUT DEADBAND
HtGn
Output
Cool Gain
OUTPUT COOL GAIN
50. 0
dEAd
Heat Power
High Limit
0 to 200.0 %
The Heat Low Limit and Heat High Limit properties may be used
to limit controller power due to process disturbances or setpoint
°/o changes. Enter the safe output power limits for the process. You may
enter values in excess of 100% to overcome limitations caused by
power transfer values, such as gains and offsets, which would
otherwise limit the output to less than their maximums.
0. 0
HtHi
100. 0
°/o
34
PID PARAMETERS: ON/OFF PARAMETERS (ONOF)
Pro
NO
F1
F2
Pro
Pid
P
Pid
ONOF
D
HYSt
dEAd
0. 2
0. 0
°F
°F
On/Off
Hysteresis
On/Off
Deadband
ON/OFF HYSTERESIS
HYSt
ON/OFF DEADBAND
dEAd
0 to 50.0 units
The On/Off Hysteresis property is used to eliminate output chatter
by separating the on and off points of the output(s) when performing
on/off control. The hysteresis value is centered around the setpoint,
that is, the transition points of the output will be offset above and
below the setpoint by half of the On/Off Hysteresis value. This value
effects outputs programmed for Heat or Cool. During auto-tune, the controller
cycles the process through 4 on/off cycles, so it is important to set the On-Off
Hysteresis to an appropriate value before initializing auto-tune.
-199.9 to 999.9 units
The On-Off Deadband property provides a means of offsetting the
on-points of heat and cool outputs programmed for on/off operation.
This results in a deadband if the value is positive, and overlap if the
value is negative. When determining the actual transition points of
the outputs, the On/Off Hysteresis value must also be taken into
consideration.
0. 2
0. 0
35
PID PARAMETERS: PID TUNING PARAMETERS (tunE)
Pro
NO
F1
F2
Pro
Pid
P
Pid
tunE
D
tCdE
tunE
2
N0
PID Tuning
Code
PID
Initiate Tuning
PID TUNING CODE
tCdE
PID INITIATE TUNING
tunE
0 to 4
The Tune Response property is used to ensure that an auto-tune
yields the optimal P, I, and D values for various applications. A
setting of Very Aggressive (0) results in a PID set that will reach
setpoint as fast as possible, with no concern for overshoot, while a
setting of Very Conservative sacrifices speed in order to prevent
overshoot. Note: If the Tune Response property is changed, auto-tune needs to
be reinitiated for the changes to affect the PID settings. See the PID Tuning
Explanations Section for more information.
2
N0
0 = Very Aggressive
1 = Aggressive
2 = Default
3 = Conservative
4 = Very Conservative
ALARM PARAMETERS (ALr)
ALARM PARAMETER MENU SELECTION
SLCt
P2C
AL1
AL1 AL2 AL3 AL4
AL5
through AL16
} Basic Mode
} Advanced Mode
Select the Alarm parameter to be programmed.
36
NO
YES
The PID Initiate Tuning is used to initiate an auto-tune sequence.
Auto-tune may be used to establish the optimal P, I, D, and Power
Filter values for a particular process. See the PID Tuning Explanations
Section for more information
ALARM PARAMETERS (ALn)
Pro
Please see the Digital Output Parameter’s Configuration area for
more information about mapping an alarm to a digital output.
NO
F2
F1
Pro
SLCt
ASGN ACtN ALr
P
ALr
ALn
D
bdEU HYSt tON
tOFF LGIC rSEt StbY IFLt
An
An
An
dn
An
An
An
An
An
An
An
NONE
NO
0. 0
0. O
0. 2
0. 0
0. O
nor
Auto
NO
OFF
°F
°F
°F
SEC
SEC
Alarm
Alarm
Band/Deviation Hysteresis
Value
Value
On Time
Delay
Standby
Operation
Probe
Burn-out
Action
Alarm
Assignment
Alarm
Action
Alarm
Value
Off Time
Delay
ALARM ASSIGNMENT
ASGN
NONE
An
NONE
PU
Reset
Action
ALARM ACTION
ACtN
PU
NO
dEHI
An
Selects the parameter to be used to trigger the Alarm.
NONE
Alarm
Logic
NO
= No Alarm Assignment (alarm disabled)
= Input Process Value
AbHI
dELO
AbLO
bANd
AUHI
bdIn
AULO
Enter the action for the selected alarm. See Alarm Figures for a
visual detail of each action.
NO
AbHI
AbLO
AUHI
AULO
dEHI
dELO
bANd
bdIn
= No Alarm Action
= Absolute high, with balanced hysteresis
= Absolute low, with balanced hysteresis
= Absolute high, with unbalanced hysteresis
= Absolute low, with unbalanced hysteresis
= deviation high, with unbalanced hysteresis
= deviation low, with unbalanced hysteresis
= Outside band, with unbalanced hysteresis
= Inside band, with unbalanced hysteresis
Setpoint Alarm Figures
With reverse logic rEv, the below alarm states are opposite.
AL + ½Hys
AL
Hys
AL - ½Hys
ALARM
STATE
AL
AL + Hys
Hys
AL + (-Dev)
Hys
AL
OFF
ON
OFF
ALARM
STATE
OFF
TRIGGER POINTS
OFF
ON
ALARM
STATE
ON
TRIGGER POINTS
TRIGGER POINTS
Absolute High Acting (Balanced Hys) = AbHI
OFF
ON
Absolute Low Acting (Unbalanced Hys) = AULO
Deviation High Acting (Dev < 0) = dEHI
AL + Bnd
AL + Dev
AL + ½Hys
Hys
Hys
AL
AL
Hys
AL
AL - ½Hys
Hys
AL- Bnd
ALARM
STATE
OFF
ON
OFF
ALARM
STATE
OFF
ON
OFF
ALARM OFF
STATE
TRIGGER POINTS
TRIGGER POINTS
Absolute Low Acting (Balanced Hys) = AbLO
AL
ON
OFF
TRIGGER POINTS
Absolute High Acting (Unbalanced Hys) = AUHI
OFF
Hys
AL + Bnd
AL
Hys
AL - Dev
OFF
ON
Band Outside Acting = bANd
Hys
ALARM
STATE
OFF
TRIGGER POINTS
Deviation High Acting (Dev > 0) = dEHI
AL
AL - Hys
ON
ALARM
STATE
AL - Bnd
Hys
OFF
ON
OFF
TRIGGER POINTS
Deviation Low Acting (Dev > 0) = dELO
37
ALARM ON
STATE
OFF
ON
OFF
TRIGGER POINTS
Band Inside Acting = bdIn
ON
ALARM VALUE
ALr
LtC1 = Latch with immediate reset action; This action latches the
-1999 to 9999
An
Enter desired alarm value. Alarm values can also be entered when
the alarm is programmed as dEnt, PEnt or HEnt. The decimal point
°F position is determined by the Decimal Resolution setting in the
Analog Input Parameter Menu.
0. 0
BAND/DEVIATION VALUE
bdEU
LtC2
-1999 to 9999
dn
This parameter is only available in band and deviation alarm
actions. Enter desired alarm band or deviation value. When the Alarm
°F Action is programmed for Band, this value can only be a positive
value.
0. 0
HYSTERESIS VALUE
HYSt
alarm on at the trigger point per the Alarm Action shown in
Alarm Figures. Latch means that the alarm can only be
turned off by front panel function key or user input manual
reset, serial reset command or controller power cycle. When
the user input or function key is activated (momentary or
maintained), the corresponding “on” alarm is reset
immediately and remains off until the trigger point is
crossed again. Any alarms that are latched at power down
will be reset.
= Latch with delay reset action; This action latches the alarm
on at the trigger point per the Alarm Action shown in Alarm
Figures. Latch means that the alarm can only be turned off
by front panel function key or user input manual reset,
serial reset command or controller power cycle. When the
user input or function key is activated (momentary or
maintained), the controller delays the event until the
corresponding “on” alarm crosses the trigger off point. Any
alarms that are latched at power down will be reset.
1 to 9999
MANUAL
RESET
An
Enter desired hysteresis value. See Alarm Figures for visual
indication or representation of how alarm actions (balanced and
°F unbalanced) are affected by the hysteresis. When the alarm is a
control output, usually balanced hysteresis is used. For alarm
applications, usually unbalanced hysteresis is used. For unbalanced
hysteresis modes, the hysteresis functions on the low side for high acting alarms
and functions on the high side for low acting alarms. Note: Hysteresis eliminates
output chatter at the switch point, while on/off time delay can be used to prevent
false triggering during process transient events.
0. 2
AL
Hys
AL - Hys
ALARM
STATE
ON TIME DELAY
tON
0 to 9999 seconds
An
Enter the time value in seconds that the alarm is delayed from
turning on after the trigger point is reached. A value of 0.0 allows the
SEC controller to update the alarm status per the response time listed in
the Specifications. When the output logic is rEv, this becomes off time
delay. Any time accumulated at power-off resets during power-up.
ì
í
î
OFF
OFF
ON
ON
OFF
ON
OFF
OFF
ON
OFF
ON
ON
OFF
OFF
OFF
( Auto)
(LtC1)
(LtC2)
Alarm Reset Actions
0. 0
ALARM STANDBY OPERATION
StbY
An
OFF TIME DELAY
tOFF
N0
0 to 9999 seconds
NO
YES
When YES, the alarm is disabled (after a power up) until the trigger
point is crossed. After the alarm trigger is reached, the alarm operates
normally per the Alarm Action and Reset Mode.
An
Enter the time value in seconds that the alarm is delayed from
turning off after the trigger point is reached. A value of 0.0 allows the
SEC controller to update the alarm status per the response time listed in
the Specifications. When the output logic is rEv, this becomes on time
delay. Any time accumulated at power-off resets during power-up.
0. 0
The following programming step is only available when Input Type in the
Input Menu is set for a temperature input (TC/RTD).
ALARM LOGIC
LGIC
An
nor
nor
BURN-OUT ACTION
rEv
IFLt
Enter the logic of the alarm. The nor logic leaves the alarm
operation as normal. The rEv logic reverses the alarm logic. In rEv,
the alarm states in the Alarm Figures are reversed.
An
OFF
RESET ACTION
rSEt
An
Auto
Auto
LtC1
LtC2
Enter the reset action of the alarm.
Auto = Automatic action; This action allows the alarm to
automatically reset off at the trigger points per the Alarm
Action shown in Alarm Figures. The “on” alarm may be
manually reset (off) immediately by a front panel function
key or user input. The alarm remains reset off until the
trigger point is crossed again.
38
OFF
ON
Enter the probe burn-out action. In the event of a temperature
probe failure (TC open; RTD open or short), the alarm output can be
programmed to be on or off.
PORT PARAMETERS (Port)
PORT PARAMETER MENU SELECTION
Port
USb
SRL
USb
SErL
Select the Communication Port Mode.
USB PORT PARAMETERS (USb)
Pro
USB SETUP
NO
USb
CNFG
SErL
SRL
F1
CNFG
F2
Pro
Port
P
USb
SRL
Port
CNFG = Configures USB with settings required to operate
SRL
USb
CNFG
D
SErL
USB
Setup
with Crimson configuration software. This will
automatically internally configure the PAX2C USB
port to use Modbus RTU protocol, 38400 baud, 8
bits, and unit address of 247. The serial port settings
in the Serial Parameters (SErL) will not change, or
show this.
= Configures USB to utilize serial settings and
protocol as configured in the Serial Parameters.
SERIAL PORT PARAMETERS (SErL)
Pro
NO
F1
F2
Pro
Port
P
SRL
Port
SErL
D
RLC Mode
Only
tYPE bAUd dAtA PArb Addr dLAY Abrv OPt
SRL
SRL
SRL
SRL
SRL
SRL
SRL
SRL
ASC
38. 4 k
8
NO
247
0. 0 10
NO
NO
SEC
Communications
Type
Baud
Rate
Data
Bit
Parity
Bit *
Meter
Unit Address
Transmit
Delay
COMMUNICATIONS TYPE
tYPE
ASC
dAtA
SRL
8
Select the desired communications protocol. Modbus is preferred
as it provides access to all meter values and parameters. Since the
Modbus protocol is included within the PAX2C, the PAX Modbus
option card, PAXCDC4, should not be used. The PAXCDC1 (RS485), or
PAXCDC2 (RS232) card should be used instead.
SRL
38. 4 k
1200
2400
4800
PArb
SRL
9600
19.2k
7
8
Select either 7 or 8 bit data word lengths. Set the word length to
match the other serial communications equipment on the serial link.
PARITY BIT *
BAUD RATE
bAud
Print
Options
DATA BIT
ASC = Modbus ASCII
rLC = RLC Protocol (ASCII)
rtu = Modbus RTU
SRL
Abbreviated
Printing
NO
38.4k
Set the baud rate to match the other serial communications
equipment on the serial link. Normally, the baud rate is set to the
highest value that all the serial equipment are capable of transmitting
and receiving.
NO
EUEN
Set the parity bit to match that of the other serial communications
equipment on the serial link. The meter ignores the parity when
receiving data and sets the parity bit for outgoing data. If no parity is
selected with 7 bit word length, an additional stop bit is used to force
the frame size to 10 bits.
* Available when Data Bit = 7.
39
Odd
METER UNIT ADDRESS
Addr
OPt
0 to 99 = RLC Protocol
1 to 247 = Modbus
SRL
247
PRINT OPTIONS
YES - Enters the sub-menu to select the meter parameters to appear
during a print request. For each parameter in the sub-menu, select YES
for that parameter information to be sent during a print request or NO
for that parameter information not to be sent. A print request is
sometimes referred to as a block print because more than one
parameter information (meter address, mnemonics and parameter data) can be
sent to a printer or computer as a block.
0.000 to 0.250 seconds
SRL
Following a transmit value (“*” terminator) or Modbus command,
the PAX2C will wait this minimum amount of time in seconds before
SEC issuing a serial response.
0. 0 10
The following programming steps are only available when Communications
Type(tYPE) is programmed for rLC.
ABBREVIATED PRINTING
Abrv
SRL
NO
NO
YES
NO
Select a Unit Address that does not match an address number of
any other equipment on the serial link.
TRANSMIT DELAY
dLAY
NO
SRL
YES
Select NO for full print or Command T transmissions (meter
address, mnemonics and parameter data) or YES for abbreviated print
transmissions (parameter data only). This will affect all the parameters
selected in the print options. If the meter address is 00, the address
will not be sent during a full transmission.
DISPLAY
DESCRIPTION
INPt
SP
SPrr
OP
ProP
Int
dEr
ALr
AL1
AL2
AL3
AL4
CtrL
Signal Input
*Setpoint
Setpoint Ramp Rate
Output Power
*Proportional Band
*Integral Time
*Derivative Time
Alarm Status (1-4)
*Alarm Value 1
*Alarm Value 2
*Alarm Value 3
*Alarm Value 4
Control Parameters
* Active values
40
FACTORY
SETTING
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
MNEMONIC
INP
SET
RMP
PWR
PBD
INT
DER
ALR
AL1
AL2
AL3
AL4
CTL
SERIAL COMMUNICATIONS
The PAX2 supports serial communications using the optional serial communication cards or via the USB programming port located on the side of the unit. When
USB is being used (connected), the serial communication card is disabled. When using the standard RS232 and RS485 PAX option cards, the PAX2 supports both the
RLC protocol and also supports Modbus communications. The PAX Modbus option card should not be used with the PAX2, as the PAX2 internal Modbus protocol
supports complete unit configuration, and is much more responsive.
USB
FC08: Diagnostics
The following is sent upon FC08 request:
Module Address, 08 (FC code), 04 (byte count), “Total Comms” 2 byte count,
“Total Good Comms” 2 byte count, checksum of the string
“Total Comms” is the total number of messages received that were addressed
to the PAX2. “Total Good Comms” is the total messages received by the
PAX2 with good address, parity and checksum. Both counters are reset to
0 upon response to FC08 and at power-up.
The USB programming port is primarily intended to be used to configure the
PAX2 with the Crimson programming software. It can also be used as a virtual
serial communications port following installation of the PAX2 USB drivers that
are supplied with the Crimson software. When the USB port is being used, i.e.
the USB cable is connected between PAX2 and PC, all serial communications
with the serial option card (if used) is disabled.
USB Cable type required: USB A to Mini-B (not supplied)
FC17: Report Slave ID
PAX2 CONFIGURATION USING CRIMSON AND USB
The following is sent upon FC17 request:
RLC-PX2C ab<0100h><40h><40h><10h>
a = SP Card, “0”-No SP, “2” or “4” SP
b = Linear Card “0” = None, “1” = Yes
<0100> Software Version Number (1.00)
<20h>Max Register Reads (64)
<20h>Max Register Writes (64)
<10h> Number Guid/Scratch Pad Regs (16)
1. Install Crimson software.
2. Supply power to PAX2.
3. Insure USB Setup in USB Port Parameters is set to CNFG (factory default
setting).
4. Attach USB cable (USB A to Mini-B) between PC and PAX2.
5. Create a new file (File, New) or open an existing PAX2 database within
Crimson.
6. Configure Crimson Link options (Link, Options) to the PC port which the
USB cable is attached (in Step 4).
SUPPORTED EXCEPTION CODES
01: Illegal Function
SERIAL MODBUS COMMUNICATIONS
Issued whenever the requested function is not implemented in the meter.
Modbus Communications requires that the Serial Communications Type
Parameter (tYPE) be set to Modbus RTU (rtu) or Modbus ASCII (ASC).
02: Illegal Data Address
Issued whenever an attempt is made to access a single register that does not
exist (outside the implemented space) or to access a block of registers that falls
completely outside the implemented space.
PAX2 CONFIGURATION USING CRIMSON AND SERIAL
COMMUNICATIONS CARD
1. Install Crimson software.
2. Install RS232 or RS485 card and connect communications cable from PAX2
to PC.
3. Supply power to PAX2.
4. Configure serial parameters as Modbus RTU (rtu), 38,400 baud, address
247.
5. Create a new file (File, New) or open an existing PAX2 database within
Crimson.
6. Configure Crimson 2 Link options (Link, Options) to the serial port which the
communication cable is attached (in step 2).
03: Illegal Data Value
Issued when an attempt is made to read or write more registers than the meter
can handle in one request.
07: Negative Acknowledge
Issued when a write to a register is attempted with an invalid string length.
SUPPORTED FUNCTION CODES
FC03: Read Holding Registers
1. Up to 64 registers can be requested at one time.
2. HEX <8000> is returned for non-used registers.
FC04: Read Input Registers
1. Up to 64 registers can be requested at one time.
2. Block starting point can not exceed register boundaries.
3. HEX <8000> is returned in registers beyond the boundaries.
4. Input registers are a mirror of Holding registers.
FC06: Preset Single Register
1. HEX <8001> is echoed back when attempting to write to a read only register.
2. If the write value exceeds the register limit (see Register Table), then that
register value changes to its high or low limit. It is also returned in the
response.
FC16: Preset Multiple Registers
1. No response is given with an attempt to write to more than 64 registers at a
time.
2. Block starting point cannot exceed the read and write boundaries (4000141711).
3. If a multiple write includes read only registers, then only the write registers
will change.
4. If the write value exceeds the register limit (see Register Table), then that
register value changes to its high or low limit.
41
PAX2C FREQUENTLY USED MODBUS REGISTERS
Only frequently used registers are shown below. The entire Modbus Register Table can be found at www.redlion.net and on the included flash drive.
Values less than 65,535 will be in (LO word). Values greater than 65,535 will continue into (Hi word). Negative values are represented by two’s complement of the
combined (Hi word) and (LO word).
Note 1: The PAX2C should not be powered down while parameters are being changed. Doing so may corrupt the non-volatile memory resulting in checksum errors.
REGISTER
ADDRESS
REGISTER NAME
LOW LIMIT
HIGH LIMIT
FACTORY
SETTING
ACCESS
COMMENTS
FREQUENTLY USED REGISTERS
40001
Process Value
N/A
N/A
N/A
Read
1 = 1 Display Unit
40002
Maximum Value
-1999
9999
N/A
Read
1 = 1 Display Unit
40003
Minimum Value
-1999
9999
N/A
Read
1 = 1 Display Unit
40004
Active Setpoint Value
-1999
9999
0
Read/Write 1 = 1 Display Unit
40005
Setpoint 1 Value
-1999
9999
0
Read/Write 1 = 1 Display Unit
40006
Setpoint 2 Value
-1999
9999
0
Read/Write 1 = 1 Display Unit
40007
Setpoint Deviation
N/A
N/A
N/A
Read Only
40008
Output Power
-1000
1000
N/A
Read/Write
40009
Active Proportional Band
0
9999
40
Read/Write 1 = 0.1 Display Unit
40010
Active Integral Time
0
65000
120
Read/Write 1 = 1 Display Unit
40011
Active Derivative Time
0
9999
30
Read/Write 1 = 0.1 Display Unit
40012
Active Power Filter
0
600
10
Read/Write 1 = 1 Display Unit
40013
Auto-Tune Code
0
4
2
Read/Write
40014
Auto-Tune Request
0
1
0
Read/Write 0 = Off, 1 = Invoke Auto-Tune
40015
Auto-Tune Phase
0
4
0
Read
0 = Off, 4 = Last Phase of Auto-Tune
40016
Auto-Tune Done
0
1
0
Read
1 = Successful Auto-Tune since last power cycle.
40017
Auto-Tune Fail
0
1
0
Read/Write
40018
Control Mode
0
1
0
Read/Write 0 = Automatic, 1 = Manual Mode
40019
Setpoint Selection
0
1
0
Read/Write 0 = Setpoint 1, 1 = Setpoint 2
40020
Remote/Local Setpoint Selection
0
1
0
Read/Write 0 = Local, 1 = Remote
40021
PID Parameter Selection
0
1
0
Read/Write 0 = Primary PID Values, 1 = Alternate PID Values
40022
Disable Integral Action
0
1
0
Read/Write 0 = Enabled, 1 = Disabled
40023
Disable Setpoint Ramping
0
1
0
Read/Write 0 = Enabled, 1 = Disabled
40024
Setpoint Ramping In Process
40025
Setpoint Ramp Rate Value
40026
40027
Output Power: Heat/Cool; * writable only in manual mode; 1 =
0.1%
0 = Very Aggressive, 1 = Aggressive, 2 = Default,
3 = Conservative, 4 = Very Conservative
0
1
0
Read/Write 0 = Off, 1 = In Process
-1999
9999
0
Read/Write 1 = 1 Display Unit
Alarm (1-16) Status Register
0
65535
0
Read
Input Range Alarm
0
1
0
Read
40028
User Input Status
0
2
0
Read
40029
Digital Output Status
0
15
N/A
Read/Write
40030
Output Manual Mode Register (MMR)
0
31
0
Bit State: 0 = Auto Mode, 1 = Manual Mode
Read/Write Bit 4 = DO1, Bit 3 = DO2, Bit 2 = DO3, Bit 1 = DO4,
Bit 0 = Linear Output
40031
Reset Output Register
0
15
0
Bit State: 1 = Reset Output, bit is returned to zero following
Read/Write reset processing; Bit 3 = DO1, Bit 2 = DO2, Bit 1 = DO3,
Bit 0 = DO4
40032
Analog Output Register (AOR)
0
4095
0
Read/Write
40033
Active Alarm 1 Value
-1999
9999
0
Read/Write Active List (A or B)
40034
Active Alarm 2 Value
-1999
9999
0
Read/Write Active List (A or B)
40035
Active Alarm 3 Value
-1999
9999
0
Read/Write Active List (A or B)
40036
Active Alarm 4 Value
-1999
9999
0
Read/Write Active List (A or B)
40037
Active Alarm 5 Value
-1999
9999
0
Read/Write Active List (A or B)
40038
Active Alarm 6 Value
-1999
9999
0
Read/Write Active List (A or B)
40039
Active Alarm 7 Value
-1999
9999
0
Read/Write Active List (A or B)
40040
Active Alarm 8 Value
-1999
9999
0
Read/Write Active List (A or B)
40041
Active Alarm 9 Value
-1999
9999
0
Read/Write Active List (A or B)
40042
Active Alarm 10 Value
-1999
9999
0
Read/Write Active List (A or B)
40043
Active Alarm 11 Value
-1999
9999
0
Read/Write Active List (A or B)
40044
Active Alarm 12 Value
-1999
9999
0
Read/Write Active List (A or B)
40045
Active Alarm 13 Value
-1999
9999
0
Read/Write Active List (A or B)
40046
Active Alarm 14 Value
-1999
9999
0
Read/Write Active List (A or B)
40047
Active Alarm 15 Value
-1999
9999
0
Read/Write Active List (A or B)
40048
Active Alarm 16 Value
-1999
9999
0
Read/Write Active List (A or B)
40049
Active Alarm 1 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40050
Active Alarm 2 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
42
Bit 15 = A16, Bit 0 = A1
Bit 1 = User Input 2, Bit 0 = User Input 1
Status of Digital Outputs. Bit State: 0 = Off, 1 = On
Bit 3 = Out1, Bit 2 = Out2, Bit 1 = Out3, Bit 0 = Out4
Outputs can only be activated/reset with this register when the
respective bits in the Manual Mode Register (MMR) are set.
Functional only if Linear Output is in Manual Mode.
(MMR bit 0 = 1)
Linear Output Card written to only if Linear Out (MMR bit 0) is
set.
REGISTER
ADDRESS
REGISTER NAME
LOW LIMIT
HIGH LIMIT
FACTORY
SETTING
ACCESS
COMMENTS
40051
Active Alarm 3 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40052
Active Alarm 4 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40053
Active Alarm 5 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40054
Active Alarm 6 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40055
Active Alarm 7 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40056
Active Alarm 8 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40057
Active Alarm 9 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40058
Active Alarm 10 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40059
Active Alarm 11 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40060
Active Alarm 12 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40061
Active Alarm 13 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40062
Active Alarm 14 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40063
Active Alarm 15 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
40064
Active Alarm 16 Band/Dev. Value
-1999
9999
0
Read/Write Active List (A or B). Only for Band or Deviation Alarm Action.
SERIAL RLC PROTOCOL COMMUNICATIONS
Register Identification Chart
RLC Communications requires the Serial Communications Type Parameter
(tYPE) be set to “rLC”.
ID
SENDING SERIAL COMMANDS AND DATA TO THE METER
When sending commands to the meter, a string containing at least one
command character must be constructed. A command string consists of a
command character, a value identifier, numerical data (if writing data to the
meter) followed by a command terminator character * or $.
Command Chart
COMMAND
DESCRIPTION
NOTES
N
Node (Meter)
Address
Specifier
Address a specific meter. Must be followed by a
two digit node address. Not required when
address = 00.
VALUE DESCRIPTION
MNEMONIC APPLICABLE COMMANDS/COMMENTS
A
Signal Input
INP
B
Active Setpoint
SET
T, P
T, V, P
C
Setpoint Ramp Rate
RMP
T, V, P
D
Output Power
PWR
T, V, P (V only in manual mode)
E
Proportional Band
PBD
T, V, P
F
Integral Time
INT
T, V, P
G
Derivative Time
DER
T, V, P
H
Alarm Status (1-4)
ALR
T, R, P
I
Alarm Value 1
AL1
T, V, R, P (Reset command resets
Alarm Outputs)
J
Alarm Value 2
AL2
K
Alarm Value 3
AL3
L
Alarm Value 4
AL4
T
Transmit Value Read a register from the meter. Must be followed
(read)
by register ID character
M
Control Parameters
CTL
T, V, P
V
Value Change
(write)
Write to register of the meter. Must be followed by
register ID character and numeric data.
O
Auto/Manual Register
MMR
T, V
Q
Analog Output Register
AOR
T, V
R
Reset
Reset a register or output. Must be followed by
register ID character.
S
Digital Output Register
DOR
T, V
P
Block Print
Request
Initiates a block print output. Registers are defined
in programming.
*, $
Terminator
Signifies end of transmission
Command String Examples:
1. Node address = 17, Write 350 to Alarm 1.
String: N17VI350$
2. Node address = 5, Read Input value.
String: N5TA*
3. Node address = 0, Reset Alarm 4 output.
String: RL*
Command String Construction
The command string must be constructed in a specific sequence. The meter
does not respond with an error message to invalid commands. The following
procedure details construction of a command string:
1. The first characters consist of the Node Address Specifier (N) followed by a
2 character address number. The address number of the meter is programmable.
If the node address is 0, this command and the node address itself may be
omitted. This is the only command that may be used in conjunction with other
commands.
2. After the optional address specifier, the next character is the command
character.
3. The next character is the Register ID. This identifies the register that the
command affects. The P command does not require a Register ID character.
It prints according to the selections made in print options.
4. If constructing a value change command (writing data), the numeric data is
sent next.
5. All command strings must be terminated with the string termination
characters *, or $. The meter does not begin processing the command string
until this character is received. See Timing Diagram figure for differences
between terminating characters.
Sending Numeric Data
Numeric data sent to the controller must be limited to 4 digits (-1999 to
9999). Leading zeros are ignored. Negative numbers must have a minus sign.
The controller ignores any decimal point and conforms the number to the scaled
resolution. (For example: the meter’s scaled decimal point position = 0.0 and 25
is written to a register. The value of the register is now 2.5.
Note: Since the controller does not issue a reply to value change commands,
follow with a transmit value command for readback verification.
43
RECEIVING DATA FROM THE CONTROLLER
Analog Output Register (AOR) ID: Q
Data is transmitted by the controller in response to either a transmit command
(T), a print block command (P) or User Function print request. The response
from the controller is either a full field transmission or an abbreviated
transmission. The controller response mode is selected via the Abrv parameter in
the Serial Port Parameters.
This register stores the present signal value of the analog output. The range
of values of this register is 0 to 4095, which corresponds to the analog output
range per the following chart:
Full Field Transmission (Address, Mnemonic, Numeric data)
Byte
1, 2
3
4-6
7-18
19
20
21
22
23
Description
2 byte Node Address field [00-99]
<SP> (Space)
3 byte Register Mnemonic field
2 byte data field, 10 bytes for number, one byte for sign, one byte for
decimal point
<CR> carriage return
<LF> line feed
<SP>* (Space)
<CR>* carriage return
<LF>* line feed
13
14
15
16
17
0.00
4.00
0.000
1
0.005
4.004
0.0025
2047
10.000
12.000
5.000
4094
19.995
19.996
9.9975
4095
20.000
20.000
10.000
4-20 mA
0-10 V
Digital Output Register (DOR) ID: S
This register stores the states of the setpoint outputs. Reading from this
register (TS) will show the present state of all the digital outputs. A “0” in the
setpoint location means the output is off and a “1” means the output is on.
S abcd
Description
12 byte data field, 10 bytes for number, one byte for sign, one byte for
decimal point
<CR> carriage return
<LF> line feed
<SP>* (Space)
<CR>* carriage return
<LF>* line feed
d = DO4
c = DO3
b = DO2
a = DO1
In Automatic Mode, the controller controls the digital output state. In Manual
Mode, writing to this register (VS) will change the output state. Sending any
character besides 0 or 1 in a field or if the corresponding output was not first in
manual mode, the corresponding output value will not change. (It is not
necessary to send least significant 0s.)
Example: VS10* will result in output 1 on and output 2 off.
* These characters only appear in the last line of a block print.
Controller Response Examples:
1. Node address = 17, full field response, Input = 875
17 INP 875 <CR><LF>
2. Node address = 0, full field response, Alarm 2 = -250.5
SP2 -250.5<CR><LF>
3. Node address = 0, abbreviated response, Alarm 2 = 250, last line of block print
250<CR><LF><SP><CR><LF>
Auto/Manual Mode Register (MMR) ID: O
This register sets the controlling mode for the outputs. In Auto Mode (0) the
controller controls the digital outputs and analog output. In Manual Mode (1) the
outputs are defined by the registers DOR and AOR. When transferring from auto
mode to manual mode, the controller holds the last output value (until the
register is changed by a write). Each output may be independently changed to
auto or manual. In a write command string (VO), any character besides 0 or 1 in
a field will not change the corresponding output mode.
O abcde
0
Writing to this register (VQ) while the analog output is in the Manual Mode
causes the output signal level to update immediately to the value sent. While in
the Automatic Mode, this register may be written to, but it has no effect until the
analog output is placed in the manual mode. When in the Automatic Mode, the
controller controls the analog output signal level. Reading from this register
(TQ) will show the present value of the analog output signal.
Example: VQ2047 will result in an output of 10.000 mA, 12.000 mA or
5.000V depending on the range selected.
Abbreviated Transmission (Numeric data only)
1-12
0-20 mA
*Due to the absolute accuracy rating and resolution of the output card, the
actual output signal may differ 0.15% FS from the table values. The output
signal corresponds to the range selected (0-20 mA, 4-20 mA or 0-10 V).
* These characters only appear in the last line of a block print.
The first two characters transmitted are the node address, unless the node
address assigned = 0, in which case spaces are substituted. A space follows the
node address field. The next three characters are the register mnemonic.
The numeric data is transmitted next. The numeric field is 12 characters long
(to accommodate the 10 digit totalizer), with the decimal point position floating
within the data field. Negative values have a leading minus sign. The data field
is right justified with leading spaces.
The end of the response string is terminated with a carriage return <CR> and
<LF>. When block print is finished, an extra <SP><CR> <LF> is used to
provide separation between the blocks.
Byte
Output Signal*
Register
Value
e = Analog Output
d = DO4
c = DO3
b = DO2
a = DO1
Example: VO00011* places DO4 and Analog in manual.
44
COMMAND RESPONSE TIME
Timing Diagrams
The controller can only receive data or transmit data at any one time (halfduplex operation). When sending commands and data to the controller, a delay
must be imposed before sending another command. This allows enough time
for the controller to process the command and prepare for the next command.
At the start of the time interval t1, the computer program prints or writes the
string to the com port, thus initiating a transmission. During t1, the command
characters are under transmission and at the end of this period, the command
terminating character (*) is received by the controller. The time duration of t1 is
dependent on the number of characters and baud rate of the channel.
NO REPLY FROM CONTROLLER
t1 = (10 * # of characters) / baud rate
At the start of time interval t2, the controller starts the interpretation of the
command and when complete, performs the command function. This time
interval t2 varies from 2 msec to 15 msec. If no response from the controller is
expected, the controller is ready to accept another command.
If the controller is to reply with data, the time interval t2 is controlled by the
use of the command terminating character and the (Serial Transmit Delay
parameter (dLAY)). The standard command line terminating character is “*”. This
terminating character results in a response time window of the Serial Transmit
Delay time (dLAY) plus 15 msec. maximum. The dLAY parameter should be
programmed to a value that allows sufficient time for the release of the sending
driver on the RS485 bus. Terminating the command line with “$” results in a
response time window (t2) of 2 msec minimum and 15 msec maximum. The
response time of this terminating character requires that sending drivers release
within 2 msec after the terminating character is received.
At the beginning of time interval t3, the controller responds with the first
character of the reply. As with t1, the time duration of t3 is dependent on the
number of characters and baud rate of the channel.
RESPONSE FROM CONTROLLER
t3 = (10 * # of characters) / baud rate.
At the end of t3, the controller is ready to receive the next command. The
maximum serial throughput of the controller is limited to the sum of the times
t1, t2 and t3.
COMMUNICATION FORMAT
Data is transferred from the controller through a serial communication
channel. In serial communications, the voltage is switched between a high and
low level at a predetermined rate (baud rate) using ASCII encoding. The
receiving device reads the voltage levels at the same intervals and then
translates the switched levels back to a character.
The voltage level conventions depend on the interface standard. The table
lists the voltage levels for each standard.
LOGIC
INTERFACE STATE
RS232*
RS485*
1
mark (idle)
TXD,RXD; -3 to -15 V
a-b < -200 mV
0
space (active)
TXD,RXD; +3 to +15 V
a-b > +200 mV
* Voltage levels at the Receiver
Character Frame Figure
Data is transmitted one byte at a time with a variable idle period between
characters (0 to ). Each ASCII character is “framed” with a beginning start bit,
an optional parity bit and one or more ending stop bits. The data format and
baud rate must match that of other equipment in order for communication to
take place. The figures list the data formats employed by the controller.
Parity bit
After the data bits, the parity bit is sent. The transmitter sets the parity bit to
a zero or a one, so that the total number of ones contained in the transmission
(including the parity bit) is either even or odd. This bit is used by the receiver
to detect errors that may occur to an odd number of bits in the transmission.
However, a single parity bit cannot detect errors that may occur to an even
number of bits. Given this limitation, the parity bit is often ignored by the
receiving device. The PAX controller ignores the parity bit of incoming data and
sets the parity bit to odd, even or none (mark parity) for outgoing data.
Start bit and Data bits
Data transmission always begins with the start bit. The start bit signals the
receiving device to prepare for reception of data. One bit period later, the least
significant bit of the ASCII encoded character is transmitted, followed by the
remaining data bits. The receiving device then reads each bit position as they are
transmitted. Since the sending and receiving devices operate at the same
transmission speed (baud rate), the data is read without timing errors.
Stop bit
The last character transmitted is the stop bit. The stop bit provides a single bit
period pause to allow the receiver to prepare to re-synchronize to the start of a
new transmission (start bit of next byte). The receiver then continuously looks
for the occurrence of the start bit. If 7 data bits and no parity is selected, then 2
stop bits are sent from the PAX controller.
45
FACTORY SERVICE OPERATIONS (FACt)
Pro
FACTORY SERVICE CODE
NO
COdE
0 to 250
FCS
50
F1
Enter the Service Code for the desired operation.
F2
Pro
COdE
P
FCS
FACt
50
D
RESTORE FACTORY DEFAULTS
COdE
FCS
rSEt
CONTROLLER CALIBRATION
COdE
COdE
FCS
FCS
50
48
P
66
Use the  and  keys to display COdE 66 and press P. The controller will
flash rSEt and then return to COdE 50. This will overwrite all user settings with
the factory settings.
FCS
51
P2C
P
FCS
50
NO
Curr
UoLt
rES
tc
ICE
rtd
AnLG
The controller has been fully calibrated at the factory. Scaling to convert the
input signal to a desired display value is performed in Input Parameters. If the
controller appears to be indicating incorrectly or inaccurately, refer to
Troubleshooting before attempting to calibrate the controller. When recalibration
is required (generally every 2 years), it should only be performed by qualified
technicians using appropriate equipment. Calibration does not change any user
programmed parameters. However, it will affect the accuracy of the input signal
and the values previously stored using the Apply (APLY) Scaling Style.
MODEL AND CODE VERSION
COdE
COdE
P
COdE
FCS
U x.xx
50
Preparation for Current, Volt, and Ohm Input Calibration
Warning: Input Calibration of this controller requires a signal source
capable of producing a signal greater than or equal to the range
being calibrated with an accuracy of 0.01% or better.
The controller will briefly display the model (P2C) on Line 1, and the current
firmware version (UEr x.xx) on Line 2, and then return to COdE 50.
Before starting, verify that the Input Range, T/V, and Excitation Jumper is set
for the range to be calibrated. Verify that the precision signal source is connected
and ready. Allow a 30 minute warm-up period before calibrating the controller.
Selecting NO at any calibration step, will cause the unit to maintain the existing
calibration parameters for that step. Selecting YES and pressing the P key will
cause the unit to store new calibration settings for the range selected. Pressing
D at any time will exit programming mode, but any range that has been
calibrated will maintain the new settings.
Current, Volt and Ohm Calibration Procedure
1. After entering CodE 48, select the input signal type (Curr, UoLt, rES) to be
calibrated.
2. Press the P key until the desired range along with 2ER is displayed in the Line
2 units mnemonic.
3. Apply the zero input limit of the range indicated on Line 1 of the controller.
4. Press  to select YES.
5. Press P. Display will indicate ---- on Line 2 as the unit reads and stores the
new calibration parameter.
6. Display will indicate the desired range along with FUL in the Line 2 units
mnemonic
7. Apply the signal level indicated on Line 1 of the controller.
8. Press  to select YES.
9. Press P. Display will indicate ---- on Line 2 as the unit reads and stores the
new calibration parameter.
10. Repeat Preparation and Calibration Procedure for each Input Range to be
calibrated.
46
Preparation for TC calibration
6. Place the thermocouple in close thermal contact to a reference thermometer
probe. (Use a reference thermometer with an accuracy of 0.25% °C or better.)
The two probes should be shielded from air movement and allowed sufficient
time to equalize in temperature. (A calibration bath could be used in place of
the thermometer.)
7. If a difference exits between PAX2C display and reference thermometer,
continue calibration.
8. Note the PAX2C display reading as the “Display Mode” reading to be used in
Step 12.
9. Enter the Factory Service Operations, select CodE 48 and press P.
10. Select ICE and press P.
11. Display will indicate the Existing ICE Point Value.
12. Calculate a new ICE Point Value using: Existing ICE Point Value +
(reference temperature – Display Mode reading). All values are in °C.
13. Using  and  change Existing ICE Point Value to indicate the new ICE
Point Value calculated in Step 12.
14. Press P and return to Display Mode. Verify the Display Mode reading (with
0 Display Offset) matches the reference temperature. If not, repeat steps 8
thru 14.
TC calibration parameters will affect RTD calibration. If using an RTD, it is
recommended that the RTD calibration be performed after completing the TC
calibration.
Warning: TC Input Calibration of this controller requires a signal
source capable of producing a 60 mV signal with an accuracy of
0.01% or better.
Before starting, verify the T/V jumper is in the T position. Verify the precision
signal source is connected and ready. Allow a 30 minute warm-up period before
calibrating the controller. Selecting NO at any calibration step, will cause the unit
to maintain the existing calibration parameters for that step. Selecting YES and
pressing P key will cause the unit to store new calibration settings for the range
selected. Pressing D at any time will exit programming mode, but any range that
has been calibrated will maintain the new settings.
TC Calibration Procedure
1. After entering CodE 48, select the tc.
2. Press the P key. Display will indicate 60mU with 2ER displayed in the Line 2
units mnemonic.
3. Apply 0 mV to input.
4. Press  to select YES.
5. Press P. Display will indicate ---- on Line 2 as the unit reads and stores the
new calibration parameter.
6. Display will indicate 60mU with FUL displayed in the Line 2 units mnemonic.
7. Apply 60 mV to input.
8. Press  to select YES.
9. Press P. Display will indicate ---- on Line 2 as the unit reads and stores the
new calibration parameter.
10. TC Calibration complete.
Preparation for Analog Output Card Calibration
Warning: Calibration of this controller requires an external meter
with an accuracy of 0.005% or better.
Before starting, verify that the precision voltmeter (voltage output) or current
meter (current output) is connected and ready. Perform the following procedure.
1. After entering CodE 48, select AnLG.
2. Using the chart below, step through the five selections to be calibrated. At
each prompt, use the PAX2C  and  keys to adjust the external meter
display to match the selection being calibrated. When the external reading
matches, or if the particular range is not in need of calibration, press the P key
to advance to the next range.
Preparation for RTD Input Calibration
RTD calibration is dependent on TC calibration parameters. Therefore, the
TC calibration should be performed prior to attempting the RTD calibration.
Warning: RTD Input Calibration of this controller requires a signal
source capable of producing a 300 ohm resistance with an
accuracy of 0.01% or better.
PAX2C DISPLAY
EXTERNAL METER
0.0 mA
4.0 mA
20.0 mA
0.0 U
10.0 U
Before starting, verify that the T/V Jumper is in the T position. Verify the
RTD jumper is in the proper range. Verify the precision signal source is
connected and ready. Allow a 30 minute warm-up period before calibrating the
controller. Selecting NO at any calibration step, will cause the unit to maintain the
existing calibration parameters for that step. Selecting YES and pressing P key
will cause the unit to store new calibration settings for the range selected.
Pressing D at any time will exit programming mode, but any range that has been
calibrated will maintain the new settings.
3. Calibration Complete.
RTD Calibration Procedure
1. After entering Code 48, select rtd.
2. Press the P key until the desired range along with 0 is displayed in the Line 2
units mnemonic.
3. Apply zero ohms to the input of the controller.
4. Press  to select YES.
5. Press P. Display will indicate ---- on Line 2 as the unit reads and stores the
new calibration parameter.
6. Display will indicate the desired range along with a value in the upper right
corner, in ohms, to be applied in the next step in the Line 2 units mnemonic
of the controller.
7. Apply the signal level, in ohms, as indicated by the Line 2 units mnemonic on
the controller.
8. Press  to select YES.
9. Press P. Display will indicate ---- on Line 2 as the unit reads and stores the
new calibration parameter.
10. Repeat Preparation and Calibration Procedure for each Input Range to be
calibrated.
Ice Point Calibration Procedure
1. Remove all option cards.
2. Verify ambient temperature of controller environment is between 20°C and
30°C.
3. Set T/V jumper in the T position.
4. Connect a thermocouple with an accuracy of 1°C or better to the controller.
5. In the Analog Input Parameters, verify Input Type (tYPE) is set to the type of
thermocouple connected in step 4, Temperature Scale (SCAL) is °C, Ice Point
Compensation (ICE) is turned ON, Decimal Resolution (dCPt) is 0.0, Rounding
Increment (rnd) is 0.1 and Display Offset (OFSt) is set to 0.
47
ACTION
0.00 mA
 and  to adjust External Meter
4.00 mA
 and  to adjust External Meter
20.00 mA
 and  to adjust External Meter
0.00 V
 and  to adjust External Meter
10.00 V
 and  to adjust External Meter
OPERATION OVERVIEW
CONTROLLER POWER-UP
B) Use a manual tuning technique (see Manual Tuning).
C) Use a third party tuning software package (generally expensive and not
always precise).
D) Use values based on control loop experience, calculated values or values
from a similar process.
If the controller is a replacement, the PID settings from the unit being
replaced may be used as good initial values. Be sure to consider any differences
in the units and the PID settings when replacing. The PID settings may be fine
tuned by using the techniques outlined in the PID Control section. After tuning
the controller to the process, it is important to power the load and the controller
at the same time for best start-up response.
Upon applying power, the controller delays control action and temperature
indication for several seconds to perform several self-diagnostic tests and
display basic controller information. Initially, the controller illuminates both
displays and all annunciators to verify that all display elements are functioning.
The controller then displays the unit model type on the top display as well as the
current firmware revision number on the bottom display. The controller then
checks for correct internal operation and displays an error message (E-XX) if an
internal fault is detected (see Troubleshooting for further information). Upon
completion of this sequence, the controller begins control action by displaying
the temperature/process value and updating the output(s) based on the PID
control calculation.
CONTROLLER POWER-DOWN
PROCESS START-UP
At power down, all parameters and control modes are saved to provide a
quick and predictable process response on the next power-up. When powering
down the process, it is important to power down the controller at the same time.
This prevents the reset action of the controller from shifting the proportional
band while the temperature/process value is dropping and prevents excessive
overshoot on the next process start-up.
After starting the process, the controller’s PID settings must be initially
“tuned” to the process for optimum control. Minimal tuning consists of
adjusting the Proportional Band, Integral Time, and Derivative Time parameters
to achieve the optimum response to a process disturbance. The controller can be
tuned once, but must be re-tuned if the process has been changed significantly.
Several options exist for tuning these parameters:
A) Use the controller’s built-in Auto-Tune feature (see Auto-Tune).
CONTROL MODE EXPLANATIONS
ON/OFF CONTROL
ON/OFF CONTROL - HEAT/COOL OUTPUT FIGURES
The controller operates in On/Off Control when the Proportional Band is set
to 0.0%. In this control mode, the process will constantly oscillate around the
setpoint value. The On/Off Control Hysteresis (balanced around the setpoint)
can be used to eliminate output chatter. The Output Assignment can be set for
heating (reverse - output on when below the setpoint) or for cooling(direct output on when above the setpoint) applications.
INPUT
SP + 1/2 HYSt
HYSt
SP
SP - 1/2 HYSt
ON/OFF CONTROL - FIGURES
INPUT
SP + 1/2 HYSt
Heat Digital Output :
OFF
ON
OFF
Cool Digital Output :
ON
OFF
ON
HEAT/COOL DEADBAND VALUE (dEAd) = 0
SP
INPUT
SP -1 /2 HYSt
SP + 1/2 (dEAd ) + 1/2 HYSt
SP + 1/2 (dEAd )
SP + 1/2 (dEAd ) - 1/2 HYSt
OFF
Digital Output :
ON
HYSt
dEAd
OFF
SP
REVERSE ACTING
SP - 1/2 (dEAd ) + 1/2 HYSt
SP - 1/2 (dEAd )
SP - 1/2 (dEAd ) - 1/2 HYSt
INPUT
SP + 1/2 HYSt
Heat Digital Output :
HYSt
OFF
SP
Digital Output :
OFF
OFF
Cool Digital Output :
SP - 1/2 HYSt
ON
ON
OFF
HEAT/COOL DEADBAND VALUE (dEAd) > 0
OFF
ON
OFF
INPUT
DIRECT ACTING
SP + 1/2 (dEAd ) + 1/2 HYSt
SP + 1/2 (dEAd )
SP + 1/2 (dEAd ) - 1/2 HYSt
Note: HYSt in the On/Off Control Figures is a user defined value in the PID
Configuration Parameters.
HYSt
dEAd
SP
For heat and cool systems, one Digital Output is assigned as HEAt (reverse)
and another Digital Output is assigned as COOL (direct). The Proportional Band
is set to 0.0 and the Relative Gain in Cooling to 0.0. The Deadband in Cooling
sets the amount of operational deadband or overlap between the outputs. The
setpoint and the On/Off Control Hysteresis applies to both O1 and O2 outputs.
The hysteresis is balanced in relationship to the setpoint and deadband value.
SP - 1/2 (dEAd ) + 1/2 HYSt
SP - 1/2 (dEAd )
SP - 1/2 (dEAd ) - 1/2 HYSt
HYSt
ON
Heat Digital Output :
Cool Digital Output :
ON
OFF
OFF
ON
HEAT/COOL DEADBAND VALUE (dEAd) < 0
48
ON
PID CONTROL
LINEAR PID CONTROL
In PID Control, the controller processes the input and then calculates a
control output power value by use of a specialized Proportional Band,
IntegralTime, and Derivative Time control algorithm. The system is controlled
with the new output power value to keep the process at the setpoint. The Control
Action for PID Control can be set to reverse for heating (output on when below
the setpoint) or direct for cooling (output on when above the setpoint)
applications.For heat and cool systems, the heat and cool outputs are both used.
The PID parameters can be established by using Auto-Tune, or they can be
Manually tuned to the process.
In Linear PID Control applications, the Analog Output Assignment ANAS is set
to % Output Power, OP. The Analog Low Scaling, ANLO , is set to 0.0 and the
Analog High Scaling, ANHI, is set to 100.0. The Analog Output will then be
proportional to the PID calculated % output power for Heat or Cooling per the
Control Action OPAC. For example, with 0 VDC to 10 VDC (scaled 0 to 100%)
and 75% power, the analog output will be 7.5 VDC.
MANUAL CONTROL MODE
In Manual Control Mode, the controller operates as an open loop system
(does not use the setpoint or process feedback). The user adjusts the percentage
of power through the % Power display to control the output power. Manual
operation provides 0 to 100% power to the HEAt output and -100 to 0% power
to the COOL output. The Low and High Output Power limits are ignored when the
controller is in Manual.
TYPICAL PID RESPONSE CURVE
P&I
P&I&D
INPUT
MODE TRANSFER
When transferring the controller mode between Automatic and Manual, the
controlling outputs remain constant, exercising true “bumpless” transfer. When
transferring from Manual to Automatic, the power initially remains steady, but
Integral Action corrects (if necessary) the closed loop power demand at a rate
proportional to the Integral Time.
SP
P&D
P only
AUTOMATIC CONTROL MODE
In Automatic Control Mode, the percentage of output power is automatically
determined by PID or On/Off calculations based on the setpoint and process
feedback.
TIME
TIME PROPORTIONAL PID CONTROL
In Time Proportional applications, the output power is converted into output
On time using the Cycle Time. For example, with a four second cycle time and
75% power, the output will be on for three seconds (4 × 0.75) and off for
one second.
The cycle time should be no greater than 1/10 of the natural period of
oscillation for the process. The natural period is the time it takes for one
complete oscillation when the process is in a continuously oscillating state.
PID CONTROL
PROPORTIONAL BAND
setpoint. High proportional band settings (low gain) result in a sluggish response
with long periods of process “droop”. A proportional band of 0.0% forces the
controller into ON/OFF control mode with its characteristic cycling at setpoint
(See ON/OFF Control for more information).
Proportional band is defined as the “band” of temperature the process
changes to cause the percent output power to change from 0% to 100%. The
band may or may not be centered about the setpoint value depending upon the
steady state requirements of the process. The band is shifted by manual offset or
integral action (automatic reset) to maintain zero error. Proportional band is
expressed as percent of input sensor range.
OUTPUT
POWER (%)
100
Digital
Output
REVERSE
ACTING
INTEGRAL TIME
Integral time is defined as the time, in seconds, in which the output due to
integral action alone equals the output due to proportional action with a constant
process error. As long as a constant error exists, integral action repeats the
proportional action every integral time. Integral action shifts the center point
position of the proportional band to eliminate error in the steady state. The units
of integral time are seconds per repeat.
Integral action (also known as “automatic reset”) changes the output power
to bring the process to setpoint. Integral times that are too fast (small times) do
not allow the process to respond to the new output value. This causes over
compensation and leads to an unstable process with excessive overshoot.
Integral times that are too slow (large times) cause a slow response to steady
state errors. Integral action may be disabled by setting the time to zero. If time
is set to zero, the previous integral output power value is maintained.
If integral action is disabled, manual reset is available by modifying the
output power offset (OPOF initially set to zero) to eliminate steady state errors.
This parameter appears in unprotected parameter mode when integral time is set
to zero. The controller has the feature to prevent integral action when operating
outside the proportional band. This prevents “reset wind-up”.
DIRECT
ACTING
P-BAND
P-BAND
HEATING
COOLING
0
Digital
Output
TEMPERATURE
SETPOINT
Example: Thermocouple type T with a temperature range of 600°C is used and
is indicated in degrees Celsius with a proportional band of 5%. This yields a
band of 600°C X 5% = 30°C.
The proportional band should be set to obtain the best response to a
disturbance while minimizing overshoot. Low proportional band settings (high
gain) result in quick controller response at expense of stability and increased
overshoot. Settings that are excessively low produce continuous oscillations at
49
Note: The Proportional band shift due to integral action
may itself be “reset” by temporarily setting the controller
to the on/off control mode (proportional band = 0).
DEVIATION
TIME
DEVIATION
TIME
OUTPUT
POWER (%)
PROPORTIONAL OUTPUT
OUTPUT
POWER (%)
DERIVATIVE OUTPUT
INTEGRAL OUTPUT
TIME
PROPORTIONAL OUTPUT
TIME
NOTE: TOTAL OUTPUT POWER IS CALCULATED
BASED ON THE THREE PID SETTINGS.
NOTE: TOTAL OUTPUT POWER IS CALCULATED
BASED ON THE THREE PID SETTINGS.
DERIVATIVE
TIME
INTEGRAL
TIME
PRIMARY/ALTERNATE PID VALUES
DERIVATIVE TIME
The PAX2C incorporates two different groups of PID parameters in memory.
These are designated as the Primary (Pri) and Alternate (Alt) PID values. It is
possible to toggle between these values using the PID Selection parameter
which is available in the PID configuration menu. This functionality (PSEL) is
also available via the user inputs, function keys or Line 2 user function.
The Active PID parameters reflect the PID values that are selected via the
PSEL parameter. If a change is made to an active PID value, such as a user change
or after an Auto-tune, the values will automatically be copied into the Primary
or Alternate group depending on which group is selected by the PSEL parameter.
Derivative time is defined as the time, in seconds, in which the output due to
proportional action alone equals the output due to derivative action with a
ramping process error. As long as a ramping error exists, the derivative action is
“repeated” by proportional action every derivative time. The units of derivative
time are seconds per repeat.
Derivative action is used to shorten the process response time and helps to
stabilize the process by providing an output based on the rate of change of the
process. In effect, derivative action anticipates where the process is headed and
changes the output before it actually “arrives”. Increasing the derivative time
helps to stabilize the response, but too much derivative time coupled with noisy
signal processes, may cause the output to fluctuate too greatly, yielding poor
control. None or too little derivative action usually results in decreased stability
with higher overshoots. No derivative action usually requires a wider proportional
and slower integral times to maintain the same degree of stability as with
derivative action. Derivative action is disabled by setting the time to zero.
PID TUNING EXPLANATIONS
AUTO-TUNE
INITIATE AUTO-TUNE
Auto-Tune is a user-initiated function where the controller automatically
determines the Proportional Band, Integral Time, Derivative Time, Digital
Filter, Control Ouput Dampening Time, and Relative Gain (Heat/Cool) values
based upon the process characteristics. The Auto-Tune operation cycles the
controlling output(s) at a control point three-quarters of the distance between the
present process value and the setpoint. The nature of these oscillations
determines the settings for the controller’s parameters.
Prior to initiating Auto-Tune, it is important that the controller and system be
verified. (This can be accomplished in On/Off Control or Manual Control
Mode.) If there is a wiring, system or controller problem, Auto-Tune may give
incorrect tuning or may never finish. Auto-Tune may be initiated at start-up,
from setpoint or at any other process point. However, insure normal process
conditions (example: minimize unusual external load disturbances) as they will
have an effect on the PID calculations.
Below are the parameters and factory settings that affect Auto-Tune
calculations. If changes are needed, then they must be made before starting
Auto-Tune. Please note that it is necessary to configure the input and control
outputs prior to initiating auto-tune.
DISPLAY
TEMPERATURE
PARAMETER
FACTORY SETTING
MENU
1.0
INPt
FLtr
Digital Filtering
CHYS
On/Off Control Hysteresis 2 (Temperature Mode)
0.2 (Process Mode)
Pid
tCod
Auto-Tune Code
2
Pid
dEAd
Deadband
0.0
Pid
tUNE
Auto-Tune Access
LOC
Pid
1. Enter the Setpoint value via the PID Menu or via the Display, Parameter or
Hidden Menu Loop Menu (if enabled).
2. Initiate Auto-Tune by changing Auto-Tune tUNE to YES via the PID Menu or
via the Display, Parameter or Hidden Menu Loop Menu (if enabled).
SP
4
3
2
TYPICAL RESPONSE CURVES
WITH AUTOTUNE DAMPENING
CODES 0 TO 4.
1
0
TIME
AUTO-TUNING CODE FIGURE
50
AUTO-TUNE PROGRESS
The controller will oscillate the controlling output(s) for four
phases. The bottom display will flash the phase number. Parameter
viewing is permitted during Auto-Tune. The time to complete the
Auto-Tune cycles is process dependent. The controller should
automatically stop Auto-Tune and store the calculated values when
the four phases are complete. If the controller remains in AutoTune unusually long, there may be a process problem. Auto-Tune
may be stopped by entering NO in Auto-Tune Start tUNE.
AUTO-TUNE OPERATION
(REVERSE ACTING)
INPUT
SETPOINT
½ HYS *
AUTO-TUNE
CONTROL
POINT
½ HYS *
AUTO-TUNE COMPLETE, PID
SETTINGS ARE CALCULATED
AND LOADED INTO MEMORY
AUTO-TUNE
START
TIME
PHASE
Output 1 (OP1) :
1
2
3
4
ON
OFF
ON
OFF
* - On/Off Control Hysteresis
PID ADJUSTMENTS
In some applications, it may be necessary to fine tune the Auto-Tune
calculated PID parameters. To do this, a chart recorder or data logging device is
needed to provide a visual means of analyzing the process. Compare the actual
process response to the PID response figures with a step change to the process.
Make changes to the PID parameters in no more than 20% increments from the
starting value and allow the process sufficient time to stabilize before evaluating
the effects of the new parameter settings.
In some unusual cases, the Auto-Tune function may not yield acceptable
control results or induced oscillations may cause system problems. In these
applications, Manual Tuning is an alternative.
PROCESS RESPONSE EXTREMES
OVERSHOOT AND OSCILLATIONS
SLOW RESPONSE
INPUT
INPUT
SP
SP
TIME
TIME
TO DAMPEN RESPONSE:
- INCREASE PROPORTIONAL BAND.
- INCREASE INTEGRAL TIME.
- USE SETPOINT RAMPING.
- USE OUTPUT POWER LIMITS.
- RE-INVOKE AUTO-TUNE WITH A
HIGHER AUTO-TUNE CODE.
- INCREASE DERIVATIVE TIME.
TO QUICKEN RESPONSE:
- DECREASE PROPORTIONAL BAND.
- DECREASE INTEGRAL TIME.
- INCREASE OR DEFEAT SETPOINT RAMPING.
- EXTEND OUTPUT POWER LIMITS.
- RE-INVOKE AUTO-TUNE WITH A
LOWER AUTO-TUNE CODE.
- DECREASE DERIVATIVE TIME.
MANUAL TUNING
6. Place the controller in Automatic (Auto) Control Mode via the trnF parameter
in the PID Menu. If the process will not stabilize and starts to oscillate, set
the Proportional Band two times higher and go back to Step 5.
7. If the process is stable, decrease Proportional Band setting by two times and
change the Setpoint value a small amount to excite the process. Continue
with this step until the process oscillates in a continuous nature.
8. Fix the Proportional Band to three times the setting that caused the oscillation
in Step 7.
9. Set the Integral Time to two times the period of the oscillation.
10. Set the Derivative Time to 1/8 (0.125) of the Integral Time.
11. Set the Output Dampening Time to 1/40 (0.025) the period of the oscillation.
A chart recorder or data logging device is necessary to measure the time
between process cycles. This procedure is an alternative to the controller’s
Auto-Tune function. It will not provide acceptable results if system problems
exist.
1. Set the Proportional Band (ProP) to 10.0% for temperature models
(Temperature) and 100.0% for process models (Voltage/Current).
2. Set both the Integral Time (Intt) and Derivative Time (dErt) to 0 seconds.
3. Set the active PID Power Filter (FLtr) in the PID Menu to 0 seconds.
4. Set the Output Cycle Time (CYCt) in the Digital Output Menu to no higher
than one-tenth of the process time constant (when applicable).
5. Place the controller into Manual Control Mode (MAN) via the trnF parameter
in the PID Menu and adjust the % Power to drive the process value to the
Setpoint value. Allow the process to stabilize after setting the % Power.
51
TROUBLESHOOTING GUIDE
PROBLEM
REMEDIES
No Display At Power-Up
Check power level and power connections
No Display After Power-Up
Check dLEU and dCnt program settings in the Display menu.
Program Locked-Out
Check for Active User Input, programmed for PLOC. Deactivate User Input.
No Line 1 Display
Check program settings for Line 1 Display Assignment.
No Line 2 Display
Check program settings for Line 2 Value Access. Confirm at least one Line 2
Parameter Value is enabled in Main Display Loop.
No Programmable Units Display
Check program settings for Line 1/2 Units Mnemonic(s).
Incorrect Process Display Value
Check Input Jumper Setting, Input Level, and Input Connections.
Enter proper access code at COdE 0 prompt.
Verify Input Menu settings.
Contact factory
Display of OLOL, ULUL, Short, OPEN, or “ . . . .”
See General Controller Specifications, Display Messages.
Modules or Parameters Not Accessible
Check for corresponding plug-in option card.
Verify parameter is valid in regard to previous program settings.
Error Code: EkEY
Keypad is active at power up. Check for depressed or stuck keypad. Press
any key to clear Error Code.
Error Code: EPAr
Error Code: EdYn
Parameter Data Checksum Error. Press any key to clear Error Code, verify
all program settings and cycle power. Contact factory if Error Code returns at
next power-up.
Error Code: EPro
Parameter Data Validation Error. Press any key to clear Error Code, verify all
program settings and cycle power. Contact factory if Error Code returns at
next power-up.
Error Code: ECAL
Calibration Data Validation Error. Contact factory.
Error Code: ELin
Linear Output Card Data Validation Error. Press any key to clear Error Code
and cycle power. If Error Code returns at next power-up, replace Linear
Option Card or contact factory.
52
53
54
55
LIMITED WARRANTY
The Company warrants the products it manufactures against defects in materials and workmanship
for a period limited to two years from the date of shipment, provided the products have been stored,
handled, installed, and used under proper conditions. The Company’s liability under this limited
warranty shall extend only to the repair or replacement of a defective product, at The Company’s
option. The Company disclaims all liability for any affirmation, promise or representation with
respect to the products.
The customer agrees to hold Red Lion Controls harmless from, defend, and indemnify RLC against
damages, claims, and expenses arising out of subsequent sales of RLC products or products
containing components manufactured by RLC and based upon personal injuries, deaths, property
damage, lost profits, and other matters which Buyer, its employees, or sub-contractors are or may be
to any extent liable, including without limitation penalties imposed by the Consumer Product Safety
Act (P.L. 92-573) and liability imposed upon any person pursuant to the Magnuson-Moss Warranty
Act (P.L. 93-637), as now in effect or as amended hereafter.
No warranties expressed or implied are created with respect to The Company’s products except
those expressly contained herein. The Customer acknowledges the disclaimers and limitations
contained herein and relies on no other warranties or affirmations.
Red Lion Controls
Headquarters
20 Willow Springs Circle
York PA 17406
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
Red Lion Controls
Europe
Printerweg 10
NL - 3821 AD Amersfoort
Tel +31 (0) 334 723 225
Fax +31 (0) 334 893 793
Red Lion Controls
India
201-B, 2nd Floor, Park Centra
Opp 32 Mile Stone, Sector-30
Gurgaon-122002 Haryana, India
Tel +91 984 487 0503
Red Lion Controls
China
Unit 101, XinAn Plaza
Building 13, No.99 Tianzhou Road
ShangHai, P.R. China 200223
Tel +86 21 6113-3688
Fax +86 21 6113-3683
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