Max, Weighted Average, Ratio, Concentration, & More
• Type 4X, NEMA 4X, IP65 Front
• Universal 85-265 VAC, or 12/24 VDC Input Power Models
• 12-36 VDC/12-24 VAC Power Option
• 2 or 4 Relays + 4-20 mA Output Options
• 0-20 mA, 4-20 mA, 0-5 V, 1-5 V, and ±10 V Inputs
• Isolated 24 VDC Transmitter Power Supply
• Multi-Pump Alternation Control
• Configure, Monitor, and Data Log from a PC with Free
ScanView Software
PRECISION DIGITAL CORPORATION
89 October Hill Road • Holliston, MA 01746 USA
Tel (800) 343-1001 • Fax (508) 655-8990
www.predig.com
Page 2
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Disclaimer
The information contained in this document is subject to change without notice.
Precision Digital Corporation makes no representations or warranties with respect to the
contents hereof; and specifically disclaim any implied warranties of merchantability or
fitness for a particular purpose.
!
Read complete instructions prior to installation
and operation of the scanner.
CAUTION
WARNING!
Risk of electric shock or personal injury.
Hazardous voltages exist within enclosure.
Installation and service should be performed only
by trained service personnel.
WARNING!
This product is not recommended for life support
applications or applications where malfunctioning
could result in personal injury or property loss.
Anyone using this product for such applications
does so at his/her own risk. Precision Digital
Corporation shall not be held liable for damages
resulting from such improper use.
Limited Warranty
Precision Digital Corporation warrants this product against defects in material or
workmanship for the specified period under “Specifications” from the date of shipment
from the factory. Precision Digital’s liability under this limited warranty shall not exceed
the purchase value, repair, or replacement of the defective unit.
Registered Trademarks
PROVU® is a registered trademark of Precision Digital Corporation. All other trademarks
mentioned in this document are the property of their respective owners.
Setting Up the Scanner (setup) ---------------------------------------------------------------------------------------- 38
Setting Up the Process Variables (PVs) (pv setup) ------------------------------------------------------------- 39
Setting the Display Decimal Point (disp.dp) ------------------------------------------------------------------------ 39
Setting the Float Decimal Point (Flot..dp) --------------------------------------------------------------------------- 39
Scaling the PV Display Values (sCale) ------------------------------------------------------------------------------ 40
Scale Menu ----------------------------------------------------------------------------------------------------------------- 40
Setting Up the Displays (dsplay setup) ---------------------------------------------------------------------------- 41
Top Display Parameters (top dsplay) ------------------------------------------------------------------------------ 41
Bottom Display Parameters (botomdsplay) --------------------------------------------------------------------- 41
Display Intensity (d-IntY) ---------------------------------------------------------------------------------------------- 41
Top Display Menu (top dsplay) ------------------------------------------------------------------------------------- 42
Bottom Display Menu (botomdsplay) ----------------------------------------------------------------------------- 43
Setting the Tags (tAg) & Units (units) ------------------------------------------------------------------------------ 44
Application Example 1 --------------------------------------------------------------------------------------------------- 45
Application Example 2 --------------------------------------------------------------------------------------------------- 48
Setting the Relay Operation (relay) ---------------------------------------------------------------------------------- 49
Relay Setup Menu (relay setup) ----------------------------------------------------------------------------------- 49
Setting the Relay Action (act 1) -------------------------------------------------------------------------------------- 50
Programming Set (set) & Reset (rst) Points ---------------------------------------------------------------------- 51
Setting Fail-Safe Operation (failsf) -------------------------------------------------------------------------------- 51
Programming Time Delay (delay) ------------------------------------------------------------------------------------ 51
Relay Action for Communications Break (break) ----------------------------------------------------------------- 51
Relay Action for Loss of 4-20 mA Input (Loop Break) ------------------------------------------------------------ 51
Relay and Alarm Operation Diagrams ------------------------------------------------------------------------------- 52
High Alarm Operation (Set > Reset) ---------------------------------------------------------------------------------- 52
Low Alarm Operation (Set < Reset) ---------------------------------------------------------------------------------- 53
High Alarm with Fail-Safe Operation (Set > Reset) --------------------------------------------------------------- 54
Low Alarm with Fail-Safe Operation (Set < Reset) --------------------------------------------------------------- 55
Pump Alternation Control Operation --------------------------------------------------------------------------------- 56
Relay Sampling Operation ---------------------------------------------------------------------------------------------- 57
Relay Operation After Communications Break -------------------------------------------------------------------- 57
Pump Alternation Control Operation --------------------------------------------------------------------------------- 57
Signal Loss or Loop Break Relay Operation ----------------------------------------------------------------------- 58
Time Delay Operation ---------------------------------------------------------------------------------------------------- 59
Scaling the 4-20 mA Analog Output (Aout) ------------------------------------------------------------------------- 66
Setting Up the Password (pass) --------------------------------------------------------------------------------------- 67
Protecting or Locking the Scanner ------------------------------------------------------------------------------------ 67
Password Menu ------------------------------------------------------------------------------------------------------------- 68
Making Changes to a Password Protected Scanner ------------------------------------------------------------- 68
Disabling Password Protection ---------------------------------------------------------------------------------------- 68
ADVANCED FEATURES MENU -------------------------------------------------------------------------------------------- 69
Advanced Menu Navigation Tips: ------------------------------------------------------------------------------------- 69
Advanced Features Menu & Display Messages ------------------------------------------------------------------- 70
Scan Function (SCan) ------------------------------------------------------------------------------------------------------ 74
4
Page 5
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Control Menu (Contrl) ---------------------------------------------------------------------------------------------------- 75
Select Menu (SELect) ------------------------------------------------------------------------------------------------------ 78
Input Data Conditioning Function Menu (Functn) ---------------------------------------------------------------- 78
Linear Function Menu (Linear) --------------------------------------------------------------------------------------- 79
Square Root Function Menu (Square) ------------------------------------------------------------------------------- 80
Programmable Exponent Function Menu (prog e) --------------------------------------------------------------- 81
Round Horizontal Tank Function Menu (rht) ---------------------------------------------------------------------- 82
Math Functions (math) ------------------------------------------------------------------------------------------------ 83
Math Constants (Const) ------------------------------------------------------------------------------------------------- 83
Math Function Menu (math) ----------------------------------------------------------------------------------------- 84
Sum Menu (sunm) --------------------------------------------------------------------------------------------------------- 85
Difference Menu (dif) --------------------------------------------------------------------------------------------------- 85
Difference Absolute Menu (difAbS) ---------------------------------------------------------------------------------- 85
Average Menu (avg) ------------------------------------------------------------------------------------------------------ 85
Multiplication Menu (nmulti) ------------------------------------------------------------------------------------------- 86
Divide Menu (divide) --------------------------------------------------------------------------------------------------- 86
Maximum PV Menu (Hi-pv) -------------------------------------------------------------------------------------------- 86
Minimum PV Menu (Lo-pv) --------------------------------------------------------------------------------------------- 86
Draw Menu (drauw)------------------------------------------------------------------------------------------------------- 87
Weighted Average Menu (uwAvg) ------------------------------------------------------------------------------------- 87
Ratio Menu (ratio) ------------------------------------------------------------------------------------------------------ 88
Concentration Menu (Concen) ----------------------------------------------------------------------------------------- 88
Low-Flow Cutoff (CutofF) ----------------------------------------------------------------------------------------------- 89
Analog Output Source Programming (aoutpr) -------------------------------------------------------------------- 90
User Menu (user) ----------------------------------------------------------------------------------------------------------- 91
Digital Input Menu (dI 1) ------------------------------------------------------------------------------------------------- 92
Digital Output Menu (dO 1) ---------------------------------------------------------------------------------------------- 92
Reset Menu (reset) -------------------------------------------------------------------------------------------------------- 93
4-20 mA Output Calibration --------------------------------------------------------------------------------------------- 93
Input Calibration Menu (ICAL) ------------------------------------------------------------------------------------------ 94
Recalibrating the Analog Input Channels (Ch-A & Ch-B) ------------------------------------------------------- 94
Scanner Copy Function (Copy) ----------------------------------------------------------------------------------------- 95
TROUBLESHOOTING --------------------------------------------------------------------------------------------------------- 97
Factory Defaults & User Settings ------------------------------------------------------------------------------------ 100
5
Page 6
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Table of Figures
Figure 1. 1/8 DIN Panel Cutout Dimensions & Panel Mounting Details -------------------------------------- 16
Figure 2. Scanner Dimensions - Side View ---------------------------------------------------------------------------- 17
Figure 3. Scanner Dimensions - Top View ----------------------------------------------------------------------------- 17
Figure 4. Jumper Configuration for 12/24 VDC Power ------------------------------------------------------------- 18
Figure 5. Transmitter Supply Voltage Selection --------------------------------------------------------------------- 18
Figure 6. Connector Labeling for Fully Loaded PD6080/6081 --------------------------------------------------- 19
Figure 7. Power Connections ---------------------------------------------------------------------------------------------- 19
Figure 8. Serial Communications Connections ---------------------------------------------------------------------- 20
Figure 9. F4 Digital Input Connections---------------------------------------------------------------------------------- 21
Figure 10. Relay Connections --------------------------------------------------------------------------------------------- 22
Figure 11. AC and DC Loads Protection-------------------------------------------------------------------------------- 22
Figure 12. Low Voltage DC Loads Protection ------------------------------------------------------------------------ 22
Figure 13. 4-20 mA Output Connections ------------------------------------------------------------------------------- 23
Figure 14. Interlock Connections ----------------------------------------------------------------------------------------- 23
Figure 15. Transmitters Powered by Internal Supply -------------------------------------------------------------- 24
Figure 16. Transmitter Powered by Ext. Supply or Self-Powered ---------------------------------------------- 24
Figure 17. Voltage Input Connections ---------------------------------------------------------------------------------- 24
Figure 18. Acknowledge Relays with F4 Function Key ------------------------------------------------------------ 63
Figure 19. Acknowledge Relays with Digital Input ------------------------------------------------------------------ 63
Figure 20. Scanner Copy Connection ----------------------------------------------------------------------------------- 95
6
Page 7
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
INTRODUCTION
The PROVU
scanner that can be programmed as a Modbus RTU Master, Slave, or Snooper. It is capable of scanning
up to 16 variables generated by any Modbus device, which makes it ideal for tank level monitoring and
control. The PD6080 displays in decimal format, while the PD6081 displays in Feet & Inches.
As a master, the PD6080/6081 reads up to 16 slave devices, scales the data from each, displays the
result, and operates the internal relays and 4-20 mA output. The PD6080/6081 in Master mode is capable
of polling up to 16 process variables (PVs); it displays all the enabled PVs in sequence, at a user
programmable scan rate; it also allows other PD6080/6081s in Snooper mode to read any of the variables
being polled by the master. As a snooper the PD6080/6081 listens to the Modbus traffic and picks up a
specific register or registers being polled by a master device from a specific slave device and processes
the data being read. As a slave, it is controlled by a master device. The data sent to it by the master is
scaled, displayed, and used to operate the relays and 4-20 mA output.
The PD6080/6081 Super Snooper is housed in a 1/8 DIN panel scanner enclosure that features a NEMA
4X front panel. Data is displayed on an adjustable intensity, dual-line, six-digit display. The upper display
is a 0.6 inch, seven-segment LED display, while the lower display digit height is 0.46 inches. The Super
Snooper can be powered from 85-265 VAC or 12-36 VDC. It is available with up to 4 internal relays and is
available with 4 additional relays and up to 8 digital inputs/outputs, as well as a dual 4-20 mA output
expansion module, as options.
The PD6080/6081 comes equipped with dual analog input channels (4-20 mA and/or 0-10 VDC) for use
in Master Mode. These can be assigned to mA or volts by mapping a PV to the internal scanner
addresses 256-259, depending on the desired function.
Various math functions may be applied to the Modbus and analog inputs including addition, difference,
absolute difference, average, weighted average, multiplication, division, minimum, maximum, draw, ratio,
and concentration. This is in addition to the signal input conditioning functions (linear, square root,
programmable exponent, or round horizontal tank calculations). The displays, relays, and the analog
outputs may be assigned to PVs or to math channels C1, C2, C3, or C4. The digital inputs/outputs can be
custom-programmed for specific operations. A digital input (F4) is standard.
Free ScanView software allows a Super Snooper Modbus Scanner to be accessed with a computer.
Configure multiple scanners, conveniently monitor critical information, and Datalog right from a PC with
ease, further increasing plant efficiency.
®
PD6080/6081 Super Snooper Modbus
®
Scanner is a multi-purpose, easy-to-use digital
7
Page 8
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
ORDERING INFORMATION
SunBright Display Models
ROVU's SunBright display models have an extraordinarily bright LED display. They are perfect for
P
applications where the scanner is in direct sunlight or in applications where visibility may be impaired by
smoke, fog, dust, or distance.
85-265 VAC Power
Model
PD6080-6H0 PD6080-7H0 No options
PD6080-6H2 PD6080-7H2 2 relays (PD1102*)
PD6080-6H3 PD6080-7H3 4-20 mA output (PD1103*)
PD6080-6H4 PD6080-7H4 4 relays (PD1104*)
PD6080-6H5 PD6080-7H5 2 relays & 4-20 mA output (PD1105*)
PD6080-6H7 PD6080-7H7 4 relays & 4-20 mA output (PD1107*)
PD6081-6H0 PD6081-7H0 No options
PD6081-6H2 PD6081-7H2 2 relays (PD1102*)
PD6081-6H3 PD6081-7H3 4-20 mA output (PD1103*)
PD6081-6H4 PD6081-7H4 4 relays (PD1104*)
PD6081-6H5 PD6081-7H5 2 relays & 4-20 mA output (PD1105*)
PD6081-6H7 PD6081-7H7 4 relays & 4-20 mA output (PD1107*)
*Model number for replacement option card.
Accessories
Model Description
PDA1002 DIN rail mounting kit for two expansion modules
PDA1004 4 SPST (Form A) relays
PDA1011 Dual 4-20 mA expansion module
PDA1044 4 digital inputs & 4 digital outputs (2 may be connected)
PDA1200 Meter copy cable
PDA1485 RS-485 serial adapter - (Included with PD6080 and PD6081)
PDA7485-I RS-232 to RS-422/485 isolated converter
PDA7485-N RS-232 to RS-422/485 non-isolated converter
PDA8008 USB serial adapter
PDA8485-I USB to RS-422/485 isolated converter
PDA8485-N USB to RS-422/485 non-isolated converter
PDX6901
12/24 VDC Power
Model
Suppressor (snubber): 0.01 µF/470 Ω, 250 VAC
Options Installed
8
Page 9
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
SPECIFICATIONS
Except where noted all specifications apply to operation at +25°C.
Operating Modes
MASTER Processes data read from Modbus RTU slave devices. It polls up to 16 process
variables from 1 to 16 slave devices. The Master is capable of scanning the
selected PVs, scaling the data, triggering relays, performing math operations,
and driving the analog outputs.
SNOOPER Listens to the Modbus traffic and picks up a specific register or registers being
polled by a master device from a specific slave device and processes the data
being read. The Snooper mode handles the data the same way as the Master.
SLAVE
Note: The relays and the 4-20 mA outputs are functional in all modes.
Processes data sent to it from a Modbus RTU master device.
Master & Snooper Settings
PV NUMBER
SLAVE ID Assign the slave ID or address (1-247, 256-259 for mA or volts inputs)
FUNCTION CODE
REGISTER
NUMBER
DATA TYPE Select the data format that the slave device uses. Select between Short integer
POLL TIME
SLAVE
RESPONSE
TIMEOUT
COMMUNICATION
BREAK
PV1–PV16 Enable or disable the process variables to be polled by the Master.
containing the process variables to be displayed by the selected PV.
Select which Modbus function code (03, 04, or 65) to use in reading the slave device.
5 digit: 30001-39999, 40001-49999, or 1-65,536
6 digit: 300001-365536 or 400001-465536 (Function Code 65 N/A here)
Specifies which register(s) to read in the slave device. Range is dependent on
Function Code selection (65, 04, or 03) and digits selection (5 or 6).
(2 byte), Long integer (4 byte), or floating point (4 byte), Signed or Unsigned
(integer only) and byte order: 1234, 4321, 2143, or 3412 (big-endian vs.
little-endian, or swapped).
1.0 to 99.9 sec. Time between read-commands (Master mode).
0.0 to 99.9 seconds: Time allowed for the slave to respond before the scanner
generates a communication break condition. The master polls the slave 3
times before starting the response timeout timer.
Slave/Snooper mode: Time the scanner will wait for new data before going into
break condition.
Slave mode: Programming 0 disables the timeout; the last value received will
be displayed indefinitely.
Displays “brEAK” after the Master has polled the slave device 3 times and the
response timeout has elapsed. The Snooper and Slave modes go into break
condition after no new data is received within the response timeout window.
Relays can be programmed to go on, off, or ignore the break condition. The
analog outputs can be setup to generate a fixed mA current when a break
condition is detected.
9
Page 10
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
PV Settings
TAG & UNITS
PV FORMAT
DISPLAY DECIMAL
POINT
FLOAT
DECIMAL POINT
PV & MATH
SCALING
Display Settings
SCAN MODE
DISPLAY
SCAN RATE
DISPLAY
ASSIGNMENT
6-character, independent tag and units for each PV and math channel
PD6080 default: Decimal format
PD6081 default: FT & IN, 1/8
th
or 1/16th; decimal format may be selected for
bottom display indication.
Up to five decimal places or none: d . ddddd, dd . dddd, ddd. ddd, dddd . dd,
ddddd . d, or dddddd
Select the number of decimals to use for the floating point data expected from
the slave or master device (this is independent from the display decimal point selection).
All PVs and math channels may be scaled to represent the input data in any
engineering unit.
Example: Level transmitter = 999.999 inches; to display in Ft-In-1/16
input 2 to display 83 Ft – 4 In – 0/16
th
.
th
scale
Automatic: 1.0 to 99.9 sec
Manual: Front panel or digital inputs
Go on alarm: Continues scanning after an alarm is detected
Stop on alarm: Goes to the alarmed PV and stops scanning; press Scan to
resume scanning.
Master/Snooper: 1 PV/second to 1 PV every 99.9 seconds
Slave: Dependent on master device (e.g. PLC)
Note: The display scan rate is independent of the poll time.
The top display may be assigned to PV (process values), Ch-C (math
channel), PV & units, tag & PV, tag-PV-units, C & units, tag-C-unit, Set point
1-8, max/min PV, max/min C.
The bottom display may be assigned to all of the above, tag, tag & units, or off.
The tag and units are displayed alternately for 2 sec max, when selected.
Different tags & PVs may be selected to display on the top and bottom displays
at the same time.
Math Functions
Name
Addition (PV1+PV2+P)*F
Difference (PV1-PV2+P)*F
Absolute difference ((Abs(PV1- PV2)+P)*F
Average (((PV1+PV2)/2)+P)*F
Multiplication ((PV1*PV2)+P)*F
Division ((PV1/PV2)+P)*F
Max PV Max value of all selected PVs
Min PV Min value of all selected PVs
Draw ((PV1/PV2)-1)*F
Weighted average ((PV2-PV1)*F)+PV1
Ratio (PV1/PV2)*F
Concentration (PV1/(PV1+PV2))*F
Math 2 Math on other math channels
PROGRAMMABLE
CONSTANTS
Constant P (Adder): -99.999 to 999.999, default: 0.000
Constant F (Factor): 0.001 to 999.999, default: 1.000
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Serial Communications
SCANNER ID
BAUD RATE
TRANSMIT
TIME DELAY
DATA
PARITY
BYTE-TO-BYTE
TIMEOUT
TURN AROUND
DELAY
Note: Refer to the PROVU® Scanner Modbus Register Tables located at www.predig.com.
1 – 247 (Scanner Modbus address)
300 – 19,200 bps
Programmable 0 to 4999 ms
This is the time the scanner will wait for a slave to respond before sending
another request on the bus. This value should be greater than 100 ms to avoid
collisions on the bus.
8 bits (1 start bit, 1 or 2 stop bits)
Even, Odd, or None with 1 or 2 stop bits
0.01 – 2.54 second
Less than 2 ms (fixed)
General
INPUT/OUTPUT
DISPLAY
DISPLAY
INTENSITY
OVERRANGE
UNDERRANGE
PROGRAMMING
METHODS
MAX/MIN
DISPLAY
PASSWORD
F4 DIGITAL INPUT
CONTACTS
F4 DIGITAL INPUT
LOGIC LEVELS
NON-VOLATILE
MEMORY
POWER
OPTIONS
FUSE
ISOLATED
TRANSMITTER
POWER SUPPLY
Modbus RTU over RS-485, Two analog inputs (4-20 mA, ±10 V)
Upper display: 0.60" (15 mm) high, red LEDs
Lower display: 0.46" (12 mm) high, red LEDs
6 digits each (-99999 to 999999), with lead zero blanking
Eight user selectable intensity levels
Values greater than 999999 cause the display to flash 999999
Values less than -99999 cause the display to flash -99999
Four front panel buttons, digital inputs, PC and ScanView software, Modbus
registers, or cloning using Copy fu nction.
Max/min readings are stored until reset by the user or when power to the
scanner is turned off. User can reset by front panel pushbuttons, digital input, or
via Modbus registers.
Three programmable passwords restrict modification of programmed settings.
Pass 1: Allows use of function keys and digital inputs
Pass 2: Allows use of function keys, digital inputs and editing set/reset points
Pass 3: Restricts all programming, function keys, and digital inputs.
50k ohm pull-up to 3.3 VDC.
Connect normally open contacts across F4 to COM.
Logic High: 3 to 5 VDC
Logic Low: 0 to 1.25 VDC
All programmed settings are stored in non-volatile memory for a minimum of
ten years, with or without power.
85-265 VAC 50/60 Hz, 90-265 VDC, 20 W max
or jumper selectable 12/24 VDC ± 10%, 15 W max
Required external fuse: UL Recognized, 5 A max, slow blow; up to 6 scanners
may share one 5 A fuse
Terminals P+ & P- : 24 VDC ± 10%.
Selectable for 24, 10, or 5 VDC supply (internal jumper J4).
ProVu Series (PD6080/81): 85-265 VAC models rated @ 200 mA max, 12/24 VDC
powered models rated @ 100 mA max, 5 or 10 VDC supply rated @ 50 mA max.
ProtEX-MAX (PD8 Series): All models transmitter supply rated @ 25 mA max.
11
Page 12
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
ISOLATION
OVERVOLTAGE
CATEGORY
ENVIRONMENTAL
MAX POWER
DISSIPATION
CONNECTIONS
ENCLOSURE
MOUNTING
TIGHTENING TORQUE
OVERALL
DIMENSIONS
WEIGHT
WARRANTY
4 kV input/output-to-power line. 500 V input-to-output or output-to-P+ supply
Installation Overvoltage Category II: Local level with smaller transient
overvoltages than Installation Overvoltage Category III.
ProVu Series (PD6080/6081):
Operating temperature range: -40 to 65°C
Storage temperature range: -40 to 85°C
Relative humidity: 0 to 90% non-condensing
ProtEX-MAX (PD8 Series):
T6 Class operating temperature range Ta = -40 to 60°C
T5 Class operating temperature range Ta = -40 to 65°C
See LIM8 ProtEX-MAX instruction manual for additional details.
ProtEX-MAX (PD8 Series): Maximum power dissipation limited to 15.1 W.
See LIM8 ProtEX-MAX instruction manual for additional details.
Removable screw terminal blocks accept 12 to 22 AWG wire, RJ45 for external
relays, digital I/O, and serial communication adapters.
1/8 DIN, high impact plastic, UL 94V-0, color: black
1/8 DIN panel cutout required: 3.622” x 1.772” (92 mm x 45 mm)
Two panel mounting bracket assemblies are provided.
Screw terminal connectors: 5 lb-in (0.56 Nm)
2.45" x 4.68" x 4.19" (62 mm x 119 mm x 106 mm) (H x W x D)
9.5 oz (269 g)
3 years parts and labor
Relays
RATING
NOISE
SUPPRESSION
ELECTRICAL NOISE
SUPPRESSION
DEADBAND
HIGH OR LOW ALARM
RELAY
OPERATION
RELAY RESET
2 or 4 SPDT (Form C) internal and/or 4 SPST (Form A) external; rated 3 A @
30 VDC and 125/250 VAC resistive load; 1/14 HP (≈ 50 W) @ 125/250 VAC for
inductive loads
Noise suppression is recommended for each relay contact switching inductive
loads.
A suppressor (snubber) should be connected to each relay contact switching
inductive loads to prevent disruption to the microprocessor’s operation.
Recommended suppressor value: 0.01 µF/470 Ω, 250 VAC (PDX6901).
0-100% of span, user programmable
User may program any alarm for high or low trip point.
Unused alarm LEDs and relays may be disabled (turn off).
Automatic (non-latching)
Latching (requires manual acknowledge)
Sampling (based on time)
Pump alternation control (2 to 8 relays)
Off (disable unused relays and enable Interlock feature)
Manual on/off control mode
User selectable via front panel buttons, digital inputs, or PC
1. Automatic reset only (non-latching), when the input passes the reset point.
2. Automatic + manual reset at any time (non-latching)
3. Manual reset only, at any time (latching)
4. Manual reset only after alarm condition has cleared (L)
Note: Front panel button or digital input may be assigned to acknowledge relays
programmed for manual reset.
12
Page 13
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
S
±
TIME DELAY
FAIL-SAFE
OPERATION
AUTO
INITIALIZATION
0 to 999.9 seconds, on & off relay time delays
Programmable and independent for each relay
Programmable and independent for each relay.
Note: Relay coil is energized in non-alarm condition.
In case of power failure, relay will go to alarm state.
When power is applied to the scanner, relays will reflect the state of the input to
the scanner.
Isolated 4-20 mA Transmitter Output
OUTPUT SOURCE
SCALING RANGE
CALIBRATION
ANALOG OUT
PROGRAMMING
COMMUNICATION
BREAK
ACCURACY
TEMPERATURE
DRIFT
ISOLATED
TRANSMITTER
POWER SUPPLY
EXTERNAL LOOP
POWER SUPPLY
OUTPUT LOOP
RESISTANCE
PV1-16, math channels C1-4, set points 1-8, or manual control mode
1.000 to 23.000 mA for any display range
Factory calibrated: 4.000 to 20.000 = 4-20 mA output
23.000 mA maximum for all parameters:
Overrange, underrange, max, min, and break
Programmable mA output when a slave device does not reply within the
response timeout.
± 0.1% of span ± 0.004 mA
0.4 µA/°C max from 0 to 65°C ambient, 0.8 µA/°C max from -40 to 0°C ambient.
Note: Analog output drift is separate from input drift.
Terminals I+ & R: 24 VDC
other devices. Refer to Figure 6 on page 19 and Figure 13 on page 23.
ProVu Series (PD6080/6081): All models rated @ 40 mA max.
ProtEX-MAX (PD8 Series): All models @ 25 mA max.
35 VDC maximum
Power supply MinimumMaximum
24 VDC
35 VDC (external)
10%. May be used to power the 4-20 mA output or
10 Ω 700 Ω
100 Ω 1200 Ω
Dual Process Input
TWO INPUTS Two analog inputs, each separately field selectable:
Ch-A mA: Assign PV to ID 256 or Ch-A volt: 257;
Ch-B mA: Assign PV to ID 258 or Ch-B volt: 259
accuracy range: 10-100% of calibrated span
0.005% of calibrated span/°C max from 0 to 65°C ambient,
0.01% of calibrated span/°C max from -40 to 0°C ambient
Linear, square root, programmable exponent, or
round horizontal tank volume calculation
2 to 32 points for PV1 and PV2
1.0001 to 2.9999
0-999999 (0 disables cutoff function) for PV1 and PV2
13
Page 14
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
CALIBRATION
RANGE
INPUT
IMPEDANCE
INPUT
OVERLOAD
Input
Range
4-20 mA 0.15 mA
±10 V
An error message will appear if the input 1 & input 2 signals are too close togeth er.
Voltage ranges: greater than 500 kΩ
Current ranges: 50 - 100 Ω (depending on resettable fuse impedance)
Current input protected by resettable fuse, 30 VDC max.
Fuse resets automatically after fault is removed.
Minimum Span
Input 1 & Input 2
0.10 V
14
Page 15
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
COMPLIANCE INFORMATION
Safety
UL & c-UL LISTED USA & Canada
UL 508 Industrial Control Equipment
UL FILE NUMBER
FRONT PANEL
LOW VOLTAGE
DIRECTIVE
Electromagnetic Compatibility
EMISSIONS EN 55022:2006/A1:2007
Radiated
Emissions
AC Mains
Conducted
Emissions
IMMUNITY EN 61326-1:2006
RFI - Amplitude
Modulated
Electrical Fast
Transients
Electrostatic
Discharge
RFI - Conducted 10V, 0.15-80 MHz, 1kHz 80% AM
AC Surge ±2kV Common, ±1kV Differential
Surge 1KV (CM)
Power-Frequency
Magnetic Field
Voltage Dips
Voltage
Interruptions
Note:
Testing was conducted on PD6000 Series meters installed through the covers of grounded metal
enclosures with cable shields grounded at the point of entry representing installations designed to
optimize EMC performance.
Declaration of Conformity available at www.predig.com
E160849
UL Type 4X, NEMA 4X, IP65; panel gasket provided
EN 61010-1:2001
Safety requirements for measurement, control, and laboratory use
Class A ITE emissions requirements
Class A
Class A
Measurement, control, and laboratory equipment
EN 61000-6-2:2005
EMC heavy industrial generic immunity standard
80 -1000 MHz 10 V/m 80% AM (1 kHz)
1.4 - 2.0 GHz 3 V/m 80% AM (1 kHz)
2.0 - 2.7 GHz 1 V/m 80% AM (1 kHz)
±2kV AC mains, ±1kV other
±4kV contact, ±8kV air
3 A/m 70%V for 0.5 period
40%V for 5 & 50 periods
70%V for 25 periods
<5%V for 250 periods
15
Page 16
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
A
A
SAFETY INFORMATION
!
CAUTION: Read complete instructions prior to
installation and operation of the scanner.
Warning!
Hazardous voltages exist within enclosure.
Installation and service should be performed only by trained service
WARNING: Risk of electric shock or
personal injury.
personnel.
INSTALLATION
There is no need to remove the scanner from its case to complete the installation, wiring, and setup
of the scanner.
Unpacking
Remove the scanner from box. Inspect the packaging and contents for damage. Report damages, if
any, to the carrier. If any part is missing or the scanner malfunctions, please contact your supplier or
the factory for assistance.
Panel Mounting
•Prepare a standard 1/8 DIN panel cutout – 3.622" x 1.772" (92 mm x 45 mm). Refer to Figure 1 for
more details.
• Clearance: allow at least 6" (152 mm) behind the panel for wiring.
Recommended minimum panel thickness to maintain Type 4X rating: 0.06" (1.5 mm) steel panel,
0.16" (4.1 mm) plastic panel.
•Remove the two mounting brackets provided with the scanner (back-off the two screws so that there is
¼" (6.4 mm) or less through the bracket. Slide the bracket toward the front of the case and remove).
• Insert scanner into the panel cutout.
• Install mounting brackets and tighten the screws against the panel. To achieve a proper seal, tighten
the mounting bracket screws evenly until scanner is snug to the panel along its short side. DO NOT
OVER TIGHTEN, as the rear of the panel may become damaged.
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
MOUNTING DIMENSIONS
Figure 2. Scanner Dimensions - Side View
N
C
C
+
-
R
O
C
O
N
N
N
C
O
N
C
C
N
O
N
N
C
C
Figure 3. Scanner Dimensions - Top View
17
Page 18
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Configuration for 12 or 24 VDC Power Option
Do not exceed voltage rating of the selected configuration.
M-LINK
24 VDC
12 VDC
POWER
J9 CONFIGURATION
MAIN BOARD
12 V
+
_
Figure 4. Jumper Configuration for 12/24 VDC Power
J9
24 V
Factory
Default
Warning!
Scanners equipped with the 12/24 VDC power option are shipped from the factory ready to operate
from 24 VDC.
To configure the scanner for 12 VDC power:
1. Remove all the connectors.
2. Unscrew the back cover.
3. Slide the back cover about 1 inch.
4. Configure the J9 jumper, located behind the power connector, for 12 V as shown below.
Transmitter Supply Voltage Selection (P+, P-)
All scanners, including models equipped with the 12/24 VDC power option, are shipped from the
factory configured to provide 24 VDC power for the transmitter or sensor. If the transmitter requires 5
or 10 VDC excitation, the internal jumper J4 must be configured accordingly.
To access the voltage selection jumper:
1. Remove all the wiring connectors.
2. Unscrew the back cover.
3. Slide out the back cover by about 1 inch.
4. Configure the J4 jumper, located behind the input signal connector, for the desired excitation
voltage as shown.
Figure 5. Transmitter Supply Voltage Selection
18
Page 19
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Connections
All connections are made to removable screw terminal connectors located at the rear of the scanner.
!
Caution!
Connectors Labeling
The connectors’ label, affixed to the scanner, shows the location of all connectors available wi th
requested configuration.
Warning!
Use copper wire with 60°C or 60/75°C insulation for all line voltage conne ction s.
Observe all safety regulations. Electrical wiring should be performed in
accordance with all applicable national, state, and local codes to prevent
damage to the scanner and ensure personnel safety.
Do not connect any equipment other than Precision Digital’s expansion
modules, cables, or scanners to the RJ45 M-LINK connector. Otherwise
damage will occur to the equipment and the scanner.
Figure 6. Connector Labeling for Fully Loaded PD6080/6081
Power Connections
Power connections are made to a two-terminal connector labeled POWER on the back of the scanner. The
scanner will operate regardless of DC polarity connection. The + and - symbols are only a suggested wiring
convention.
POWER
-
+
AC or DC
POWER
Required External Fuse:
5 A max, 250 V Slow Blow
Figure 7. Power Connections
19
Page 20
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Serial Communications Connection
Serial communications connection is made to an RJ45 connector labeled M-LINK on the back of the
scanner. The Modbus Scanner uses the PDA1485 RS-485 adapter to interface with other Modbus
devices and the PDA8485 RS-485 to USB converter or PDA7485 RS-232 to RS-485 converter to connect
to a PC. The same port is used for interfacing with all expansion modules (e.g. external relays, digital I/O).
Use the PDA1200 meter copy cable for scanner-to-scanner interfacing for cloning purposes (i.e. copying
settings from one scanner to other scanners).
Figure 8. Serial Communications Connections
20
Page 21
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Serial Communications Connections Table
The table below shows the terminal connections for 3-wire RS-485 devices.
PD6080/6081
Master
PDA1485
RS-485 Adapter
DODI
DODI
F4 Digital Input Connections
A digital input, F4, is standard on the scanner. This digital input connected with a normally open closure
across F4 and COM, or with an active low signal applied to F4.
PD6080/6081
Snooper
PDA1485
RS-485 Adapter
DODIDODI
DODIDODI
P-F4P+COM V+
34125
PC
Connection
PDA8485
RS-485 to USB
mA+ COM V+mA+
Modbus
Slave Meter
RS-485 RS-485
G GND
D- A (-)
D+ B (+)
7869
Modbus
Level Gauge
Ack
Figure 9. F4 Digital Input Connections
21
Page 22
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Relay Connections
Relay connections are made to two six-terminal connectors labeled RELAY1 – RELAY4 on the back of
the scanner. Each relay’s C terminal is common only to the normally open (NO) and normally closed (NC)
contacts of the corresponding relay. The relays’ C terminals should not be confused with the COM
(common) terminal of the INPUT SIGNAL connector.
RELAY4RELAY3
436521
CNONO NCNCC
RELA Y2RELAY1
436521
CNONO NCNCC
Figure 10. Relay Connections
Switching Inductive Loads
The use of suppressors (snubbers) is strongly recommended when switching inductive loads to prevent
disrupting the microprocessor’s operation. The suppressors also prolong the life of the relay contacts.
Suppression can be obtained with resistor-capacitor (RC) networks assembled by the user or purchased
as complete assemblies. Refer to the following circuits for RC network assembly and installation:
C
C
R
Figure 11. AC and DC Loads Protection
Choose R and C as follows:
R: 0.5 to 1 Ω for each volt across the contacts
C: 0.5 to 1 µF for each amp through closed contacts
Notes:
1. Use capacitors rated for 250 VAC.
2. RC networks may affect load release time of solenoid loads. Check to confirm proper operation.
3. Install the RC network at the scanner's relay screw terminals. An RC network may also be installed
across the load. Experiment for best results.
R
Use a diode with a reverse
breakdown voltage two to three
times the circuit voltage and
forward current at least as large
as the load current.
Figure 12. Low Voltage DC Loads Protection
RC Networks Available from Precision Digital
RC networks are available from Precision Digital and should be applied to each relay contact switching an
inductive load. Part number: PDX6901.
Note: Relays are de-rated to 1/14 HP (50 watts) with an inductive load.
22
Page 23
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
4-20 mA Output Connections
Connections for the 4-20 mA transmitter output are made to the connector terminals labeled MA OUT.
The 4-20 mA output may be powered internally or from an external power supply.
24 V
24 V
RELAY1
MA OUT
321
+
4-20 mA Input
Remote Dis play,
Chart Recorder, Etc.
RI-I+
132
-
RELAY1
321
+
4-20 mA
Input Meter
-
MA OUT
-
+
12-35 VDC
Power
Supply
RI-I+
132
Figure 13. 4-20 mA Output Connections
Analog Output Transmitter Power Supply
The internal 24 VDC power supply powering the analog output may be used to power other devices, if the
analog output is not used. The I+ terminal is the +24 V and the R terminal is the return.
External Relay, Analog Output, & Digital I/O Connections
The relay, analog out, and digital I/O expansion modules PDA1004, PDA1011, and PDA1044 are
connected to the scanner using a CAT5 cable provided with each module. The two RJ45 connectors on
the I/O expansion modules are identical and interchangeable; they are used to connect additional
modules to the system. See LIM1044, Expansion Module Instruction Manual, for details.
Note: The jumper located between the RJ45 connectors of the PDA1044 must be removed on the second
digital I/O module in order for the system to recognize it as module #2.
Do not connect or disconnect the expansion modules with the power on!
Warning!
More detailed instructions are provided with each optional expansion
module.
Interlock Relay Feature
As the name implies, the interlock relay feature reassigns one, or more, alarm/control relays for use as
interlock relay(s). Interlock contact(s) are wired to digital input(s) and trigger the interlock relay. This
feature is enabled by configuring the relay and relative digital input(s). In one example, dry interlock
contacts are connected in series to one digital input which will be used to force on (energize) the
assigned interlock power relay when all interlock contacts are closed (safe). The interlock relay front
panel LED flashes when locked out. The interlock relay would be wired in-series with the load (N/O
contact). See below.
Figure 14. Interlock Connections
23
Page 24
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Analog Input Signal Connections
Analog input signal connections are made to a nine-terminal connector labeled SIGNAL on the back of
the scanner. The COM (common) terminals are the return for the 4-20 mA and the ±10 V input signals.
The two COM terminals connect to the same common return, and are not isolated.
Current and Voltage Connections
The following figures show examples of current and voltage connections. There are no switches or jumpers
to set up for current and voltage inputs. Setup and programming is performed through the front panel
buttons.
Figure 15. Transmitters Powered by Internal Supply
Figure 16. Transmitter Powered by Ext. Supply or Self-Powered
The current input is protected against current overload by a resettable fuse. The display may or may not
show a fault condition depending on the nature of the overload. The fuse limits the current to a safe level
when it detects a fault condition, and automatically resets itself when the fault condition is removed.
Figure 17. Voltage Input Connections
The scanner is capable of accepting any voltage from -10 VDC to +10 VDC.
24
Page 25
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
SETUP AND PROGRAMMING
The analog inputs of the scanner are factory calibrated prior to shipment to read in milliamps and volts,
depending on the input selection. The calibration equipment is certified to NIST standards.
Overview
There are no jumpers involved in the scanner setup procedure.
Setup and programming is done using ScanView software or through the front panel buttons.
After power and signal connections have been completed and verified, apply power to the scanner.
Front Panel Buttons and Status LED Indicators
PD6080 PD6081
Button
Symbol/LED
Description LED Status
Menu 1-8 Alarm 1-8 indicator
PREV/Right arrow/F1
NEXT/Up arrow/F2
SCAN/Enter/F3 1-4
PREV
NEXT
STOP
Notes: F4 is a digital input. Alarms 5-8 are
enabled when relay expansion module installed.
• Press the Menu button to enter or exit the Programming Mode at any time.
• Press the Right arrow button to move to the next digit during digit or decimal point programming.
• Press the Up arrow button to scroll through the menus, decimal point, or to increment a digit.
• Press the Enter button to access a menu or to accept a setting.
• Press and hold the Menu button for three seconds to access the advanced f eatures of the scanner.
• Press the SCAN/Enter button once to pause scanning (Pause LED flashes), then press the
SCAN/Enter button again to resume scanning (Play LED turns on).
• Press NEXT to go to the next PV; auto scan resumes after 10 seconds of inactivity.
• Press PREV to go to the previous PV; auto scan resumes after 10 seconds of inactivity.
Go to previous PV
Go to next PV
Stop scan on alarm
1-8
M
/8
/16
F
PAUSE
PLAY
Note: LEDs for relays in manual mode flash with
the “M” LED every 10 seconds.
Flashing: Relay in manual control
mode
th
Displays PV to nearest 1/8
th
of an inch
1/16
Flashing: Relay interlock switch
open
Communications Fault Condition
Press SCAN to pause scanning
Press SCAN to resume scanning
The following table shows the main menu functions and messages in the order they appear in the menu.
Display Parameter Action/Setting Description
mode
master
Pv.nbr
Pv 1
enable
disabl
Slav.Id
FunCod
Reg.nbr
data
float
short
long
binary
bcd
signed
unsigd
1234
4321
2413
3412
t-poll
t-resp
snooper
Pv.nbr
Pv 1
enable
disabl
Slav.Id
FunCod
Fun 03
Fun 04
Fun 65
Reg.nbr
5 dig
6 dig
data
Mode
Master
PV Number
PV
Enable
Disable
Slave ID
Function Code
Register Number
Data Type
Floating Point Data Type
Short Integer Data Type
Long Integer Data Type
Binary
BCD
Signed
Unsigned
Byte Order
Byte Order
Byte Order
Byte Order
Polling Time
Response Time
Snooper
PV Number
PV
Enable
Disable
Slave ID
Function Code
Function Code 03
Function Code 04
Function Code 65
Register Number
Register Number Digits
Data Type
Enter Mode menu
Enter Master Mode
Select PV
Select PV 1-16
Enable PV
Disable PV
Enter the unique Slave ID for each PV
Enter the Function Code for each PV
Enter the Register Number for each PV
Enter the Data Type for each PV
Floating Point Data Type. Select Floating Point as the data type to be
read from the slave device.
Short Integer Data Type. Select Short Integer as the data type to be
read from the slave device.
Long Integer Data Type. Select Long Integer as the data type to be
read from the slave device.
Binary Data format. Select Binary format for Short or Long integers.
BCD Data format. Select BCD format for Short or Long integers.
Signed Data. Select Signed Binary format for Short or Long integers.
Unsigned Data. Select Unsigned Binary format for Short or Long
integers.
Select big-endian byte order.
Select little-endian byte order.
Select byte-swapped big-endian byte order. Not available for Short
integer.
Select byte-swapped little-endian byte order. Not available for Short
integer.
Enter Polling Time (the time between read commands). In other words,
how often the display is updated in Master mode.
Enter the time allowed for a slave device to respond to a command.
Enter Snooper Mode
Select PV
Select PV 1-16
Enable PV
Disable PV
Enter the unique Slave ID of the device to be polled by Master
Enter the Function Code for each PV
Use Function Code 03 to read slave device
Use Function Code 04 to read slave device
Use Function Code 65 to read slave device
Enter the Register Number for each PV
Select either 5 (x0001-x9999) or 6 (x00001-x65536) digits for the
Register Number by pressing the Right Arrow in Register Number
menu.
Enter the Data Type for each PV
26
Page 27
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Display Parameter Action/Setting Description
float
short
long
binary
bcd
signed
unsigd
1234
4321
2413
3412
t-resp
slave
data
float
short
long
binary
bcd
signed
unsigd
1234
4321
2413
3412
t-resp
setup
pv
Pv 1
tag
units
formt
dec
Ft In 8
Ft In 16
Dec.Pt
Disp.dp
Floating Point Data Type
Short Integer Data Type
Long Integer Data Type
Binary
BCD
Signed
Unsigned
Byte Order
Byte Order
Byte Order
Byte Order
Response Time
Slave
Data Type
Floating Point Data Type
Short Integer Data Type
Long Integer Data Type
Binary
BCD
Signed
Unsigned
Byte Order
Byte Order
Byte Order
Byte Order
Response Time
Setup
Process Variable
PV
Tag
Units
Format
Decimal
Eighths
Sixteenths
Decimal Point
Display Decimal Point
Floating Point Data Type. Select Floating Point as the data type to be
read from the slave device.
Short Integer Data Type. Select Short Integer as the data type to be
read from the slave device.
Long Integer Data Type. Select Long Integer as the data type to be
read from the slave device.
Binary Data. Select Binary format for Short or Long integers.
BCD Data. Select BCD format for Short or Long integers.
Signed Data. Select Signed Binary format for Short or Long integers.
Unsigned Data. Select Unsigned Binary format for Short or Long
integers.
Select big-endian byte order.
Select little-endian byte order.
Select byte-swapped big-endian byte order. Not available for Short.
Select byte-swapped little-endian byte order. Not available for Short.
Enter the time allowed for a slave device to respond to a command.
Enter Slave Mode
Enter the Data Type for each PV
Floating Point Data Type. Select Floating Point as the data type to be
read from the slave device.
Short Integer Data Type. Select Short Integer as the data type to be
read from the slave device.
Long Integer Data Type. Select Long Integer as the data type to be
read from the slave device.
Binary Data. Select Binary format for Short or Long integers.
BCD Data. Select BCD format for Short or Long integers.
Signed Data. Select Signed Binary format for Short or Long integers.
Unsigned Data. Select Unsigned Binary format for Short or Long
integers.
Select big-endian byte order.
Select little-endian byte order.
Select byte-swapped big-endian byte order. Not available for Short
integer.
Select byte-swapped little-endian byte order. Not available for Short
integer.
Enter the time allowed for a slave device to respond to a command.
Enter Setup menu
Enter PV Setup menu
Select PV 1-16
Tag
Units
Format (Decimal, Eighths, or Sixteenths of an Inch)
Decimal Format
Eighth Inch Format
Sixteenth Inch Format
Decimal Point menu
Set the decimal point position for the display. This is independent from
float decimal point.
27
Page 28
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Display Parameter Action/Setting Description
flot.dp
SCale
Inp 1
Dis 1
Inp 2
Dis 2
dsplay
top
D pv
D Ch-C
Pv.unit
Tg.pvn
Tg.pvn.u
C.unit
Tg. C. u
Dset 1
Hi-pv
Lo-pv
Hi-C
Lo-C
botom
D tag
D tag.u
D off
d-Inty
relay
assign
Relay 1
Pv 1
m-pv
Rly 1
act 1
Auto
A-nman
LatCH
Lt-CLr
Altern
SAmpl
Off
FaiLSF
FLS 1
on
off
DeLAY
Floating Decimal Point
Scale PV
Input 1
Display 1
Input 2
Display 2
Display
Top Display
Display PV
Display C Channel
Display PV & Units
Display Tag, PV Number
Display Tag, PV# & Units
Display C & Units
Display Tag, C, & Units
Display Set Points 1-8
Display Max PV 1-16
Display Min PV 1-16
Display Max Ch C1-C4
Display Min Ch C1-C4
Bottom Display
Display Tag
Display Tag & Units
Display off
Display Intensity
Relay Setup
Assign Relay
Relay 1-8
PV 1-16
Multiple PVs
Relay 1-8
Relay Action 1-8
Automatic
Auto-manual
Latching
Latching-cleared
Alternate
Sample
Off
Fail-safe
Fail-safe 1
On
Off
Delay
Floating Decimal Point. Select the decimal point for the expected
floating point data.
Scale PV
Calibrate input 1 signal or program input 1 value
Program display 1 value
Calibrate input 2 signal or program input 2 value (up to 32 points)
Program display 2 value (up to 32 points)
Enter Display Setup menu
Top Display
Display PVs 1-16
Display Math Channels C1-C4
Display PV & Units
Display Tag & PV Number selected
Display Tag, PV Number selected, & Units
Display C1-C4 & Units
Display Tag, C1-C4 & Units
Display Set Points 1-8
Display Maximum value for each enabled PV1-16
Display Minimum value for each enabled PV1-16
Display Maximum for math channels C1-C4
Display Minimum for math channels C1-C4
Bottom Display
Display Tag
Display Tag & Units
Display Off
Display Intensity
Enter Relay Setup menu
Assign Relay menu
Assign Relay 1-8
Map Relay to PV 1-16
Map Relay to Multiple PVs
Relay 1-8
Assign Relay Action for relays 1-8
Set relay for automatic reset
Set relay for auto or manual reset any time
Set relay for latching operation
Set relay for latching operation with manual reset only after alarm
condition has cleared
Set relay for pump alternation control
Set relay for sample time trigger control
Turn relay off
Enter Fail-safe menu
Set relay 1-8 fail-safe operation
Enable fail-safe operation
Disable fail-safe operation
Enter relay Time Delay menu
28
Page 29
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
*Enter relay 1-8 time delay setup
Set relay 1 On time delay
Set relay 1 Off time delay
Set relay condition if communication break detected
Ignore break condition. No change in relay state when
Communications Break detected.
Relay goes to alarm condition when break detected. Relay turns on
when Communications Break detected.
Relay goes to non-alarm condition when break detected. Relay turns
off when Communications Break detected.
Enter the Analog Output scaling menu
Analog Output source channel (*1-3)
Program the first Display value for the Analog Output.
Program the first Output value that corresponds to the Display 1 value
for the Analog Output. (e.g. 4.000 mA).
Program the second Display value for the Analog Output.
Program the second Output value that corresponds to the Display 2
value for the Analog Output. (e.g. 4.000 mA). (e.g. 20.000 mA)
Enter Serial menu
Enter Scan ID of the meter being polled (1-247)
Select Baud Rate (Choices: 300/600/1200/2400/4800/9600/19,200)
(Must match that of other devices)
Enter Transmit Delay
(Master’s delay must be greater than Snooper or slave devices)
Select Parity (Even, Odd, None 1-Stop, or None 2-Stop)
(Must match that of other devices)
Enter the timeout value allowed between received bytes.
(This is used to fix communication problems with slow devices).
Enter the Password menu
Set or enter Password 1
Set or enter Password 2
Set or enter Password 3
Program password to lock scanner
Enter password to unlock scanner
Over/under range condition
29
Page 30
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
ScanView Software
Free ScanView software allows a Super Snooper Modbus Scanner to be accessed with a computer.
Configure multiple scanners, conveniently monitor critical information, and Datalog right from a PC with
ease. Available for download at www.predig.com
.
Menu Navigation Tip
•The Up arrow scrolls through the sub-menus within a menu, after the last item it returns to the top
menu. Press Enter to step into the menu again or press Up arrow to move to the next menu.
Note: There are some exceptions (e.g. PV - Enable - - Data type ▲ Next PV).
•Press Menu to exit programming at any time.
Setting Numeric Values
The numeric values are set using the Right and Up arrow buttons. Press the Right arrow to select the
next digit and the Up arrow to increment the digit’s value. The digit being changed is displayed brighter
than the rest. Press and hold the Up arrow to auto-increment the display value. Press the Enter button, at
any time, to accept a setting or the Menu button to exit without saving changes.
004.000
dis 1dis 1dis 1
Select
Next
Digit
004.000
Increment
Digital
Value
30
005.000
Accept
Setting
Next
Setting
Page 31
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Main Menu
The main menu consists of the most commonly used functions: Mode, Setup, Serial, and Password.
• Press Menu button to enter Scanner Programming
• Press Up arrow button to scroll through the menus
• Press Menu, at any time, to exit and return to Run Mode
• Changes to the settings are saved to memory only after pressing Enter
• The display moves to the next menu every time a setting is accepted by pressing Enter
*Analog Output will
only display if installed.
31
Page 32
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Serial Communications (serial)
The scanner is equipped with RS-485 Modbus RTU serial communications.
The Serial menu is used for programming the Scanner ID, Baud Rate, Transmit Delay, Parity, and Byte-
to-Byte Timeout parameters.
To communicate with a computer or other data terminal equipment, an RS-485 to USB or RS-485 to
RS-232 converter is required; see Ordering Information on page 8 for details.
Do not connect any equipment other than Precision Digital’s expansion
Warning!
When using more than one scanner in a multi-drop mode, each scanner must be provided with its own
unique address. The scanner address (Scan ID) may be programmed between 1 and 247.
The transmit delay may be set between 0 and 4999 ms; this value must be less than (Poll Time/# of PVs).
The parity can be set to even, odd, or none with 1 or 2 stop bits.
Changes made to the Serial menu are initialized after exiting the Serial menu.
modules, cables, or scanners to the RJ45 M-LINK connector. Otherwise
damage will occur to the equipment and the scanner.
Baud Rate for the PD6080/PD6081 is entered here by user, and
must match that of other system devices. Choices are seen below.
When setting up the scanner to run on a Modbus system, the devices must be programmed with
matching Baud Rate and Parity. Failure to match up the network devices’ parameters may result in
communication breaks.
Notes:
1. The byte-to-byte timeout setting may be adjusted to fix communication errors with slow devices.
2. The Transmit Delay of the Master must be greater than the Snooper or the slave devices being
polled.
32
Page 33
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Scanner Mode Selection
Operating Modes (nmode)
The Mode menu is used to select how the scanner is to function:
1. Master: Reads a slave device, scales the data from it, displays the result, and operates the relays
and 4-20 mA output. The Master polls from 1 to 16 process variables from 1 to 16 slave devices.
The Master processes and displays PV1 through PV16 and alternately displays the variables
being polled.
2. Snooper: Listens to the Modbus traffic and picks up a specific register or registers being polled by
a Master device from a specific slave device and processes the data being read.
3. Slave: Read and controlled by a master device (PLC, DCS, etc). The data sent to it by the master
is scaled, displayed, and used to operate the relays and 4-20 mA output.
The Master mode requires additional parameter selection to specify how the slave device is to be read
and how to interpret the data.
Press Menu to enter Scanner Programming. Press the Enter button to access any menu or press Up
arrow button to scroll through choices. Press the Menu button to exit at any time and return to Run mode.
How to Enable Process Variables (PVs)
In Master or Snooper Mode, navigate to the PV Number menu and press ENTER. From there, the user
can scroll through all of the sixteen available PVs. In order to enable a specific PV, simply press ENTER
to access the desired PV, then scroll to ENABLE and press ENTER (Follow the same course of action for
disabling PVs).
Enter the Slave ID of the device being polled by the Master, followed by the Function Code, Register
Number, Data Type, and Byte Order. Analog input channels must be assigned a Slave ID corresponding
to the input to be read as indicated here: Ch A = 256 (mA) or 257 (V), Ch B = 258 (mA) or 259 (V).
Once the desired PVs are enabled, navigate to the Setup menu and enter the PV Setup in order to select
the PV tag, units, format, and decimal point parameters, as well as to scale the PVs.
Once the user has scaled the final PV, the scanner automatically goes to the Display Setup menu to
access the Top and Bottom display assignments.
By default the top display is assigned to Display PV (d pv) and the bottom to display the Tag (d tag) for
the corresponding PV.
It is possible to display PVs & Tags on the top and bottom displays simultaneously by selecting Tag & PV Number (tag.pvn). The top display is setup by default to display PV & tag for PV1, 3, 5, 7; while the
bottom display is setup by default to display PV & tag 2, 4, 6, 8. These can be changed by the user to
display any or all PVs. Program either the Top or Bottom display to show the desired parameters and
press ENTER. See page 41 for details.
33
Page 34
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Master Mode (nmastr)
The Master mode contains the PV Number, Poll Time, and Response Timeout menus.
PV Number: Enable/disable PVs, select slave ID, function code, register number, data type & byte order.
Poll Time: Enter the time interval to poll the slave devices selected.
Response timeout: Enter the time interval to wait after three polls before reporting it as a Communications
Break.
Back To
PV can be any
PV from
PV 1-PV 16.
Enter Slave ID
of meter to be
polled by master.
Function Code
can be either
03, 04, or 65.
Byte order is
dependent upon
data type.
PVs 1-15 move
to next PV. PV16
moves to t-poll
Forward
to
.
Register Number
is selected
by user.
34
Page 35
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Snooper Mode (Snoopr)
The Snooper mode is used to listen to data being transmitted on the bus. Multiple Snoopers can be
connected to the RS-485 bus and display any process variable. The same process variable can be
displayed in multiple locations. Use the menu below to configure Snooper Mode parameters.
Back To
PV can be any
PV from
PV 1-PV 16.
Forward
to
Enter Slave ID
of meter to be
polled by master.
Function Code
can be either
03, 04, or 65.
Register Number
is selected
by user.
Byte order is
dependent upon
data type.
PVs 1-15 move
to next PV. PV16
moves to t-resp
.
Notes:
1. To minimize the possibility of communication errors and communication break conditions, use a poll
time of 5 seconds or more with slow baud rates (e.g. 4800 bps or less).
2. The response time for scanners set up for Snooper mode must be greater than the Master’s poll time.
This setting corresponds to the time window during which the Snooper listens to the bus for a reply by
the slave device being polled by the master device. As soon as the Snooper detects a new reply on
the bus, the display is updated. If there is no reply within the response time setting, the Snooper goes
into communications break condition.
35
Page 36
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
How to Select 5 or 6-Digit Registers
In Master or Snooper Mode, it is possible to select either a five-digit or a six-digit Register Number. Once
the operator has enabled a PV, entered a Slave ID, and chosen a Function Code, the scanner will arrive at the
Register Number menu (reg.nbr). Press the Right arrow to display and then the Up arrow to change the
setting for the number of digits used for the Register Number (5 dig or 6 dig), then press ENTER.
Notes:
1. If Function Code 03 is selected, the Register Number defaults to 40001; if Function Code 04 is
selected, the Register Number defaults to 30001.
2. Default Data Type is Float
3. Default Slave ID for PV1=001, for PV2=002, for PV3=003, etc.
Short
Long
The Master ignores the decimal point setting for slave devices that specify a Short or Long integer. For
example, a slave that is displaying 12.34 is read as 1,234. Floating point data may or may not utilize the
decimal point. Refer to the slave’s operating manual to make sure.
The Register Number range is based on the Function Code and the number of digits selecte d. See the
following table:
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Slave Mode (Slave)
The Slave mode is capable of accepting Short, Long, and Float data types. Refer to the Modbus Register
Tables at www.predig.com for details of all the predefined parameters. Follow the menu below to navigate
and set all parameters for Slave Mode.
Back To
Forward
to
Byte order is
dependent upon
data type.
37
Page 38
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Setting Up the Scanner (setup)
The Setup menu is used to select:
1. PV Setup
a. PV Tags
b. PV Units
c. Format: Decimal point or Feet & Inches
d. Decimal Point
e. Scale input data
2. Display assignment & Intensity
3. Relay assignment and operation
4. 4-20 mA analog output scaling
Press the Menu button to exit at any time.
Aout Menu will
only display
if enabled.
PV Setup
continues
from here.
Choose from
Tag , Units,
Format, Dec. Pt.,
and Scale.
Display Setup
continues
from here.
Relay Setup
continues
from here.
Aout Setup
continues
from here.
38
Page 39
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Setting Up the Process Variables (PVs) (pv setup)
Enter the PV Setup menu to set up all the criteria associated with each enabled PV. Once you have
selected the desired PV, you can select parameters for each. These include tag, units, format, display
decimal point, float decimal point (resolution), and scaling of the input data.
Note: PV1 and PV2 can have multiple points for linearization. Only two points are available for all other
PVs and for either the Square Root or Programmable Exponent functions.
To D i splay
Setup Menu
After last enabled
PV or Channel,
meter will
automatically go
to Display Setup.
Flashes
briefly here.
After last enabled
PV or Channel,
meter will
automatically go
to Display Setup.
Setting the Display Decimal Point (disp.dp)
Decimal point may be set one to five decimal places or with no decimal point at all. Pressing the Up arrow
moves the decimal point one place to the right until no decimal point is displayed, and then it moves to
the leftmost position. The decimal point is programmable only for the Display Value.
Setting the Float Decimal Point (Flot..dp)
If floating point data type is selected, select the number of decimals to correspond to the expected floating
point data; the numbers to right of the LSD will be ignored by the scanner.
Example:
If you have a number such as 12.3456, you have to tell the scanner how many digits to the right are of
interest to you. In this case selecting 4 places will make use of all the digits. For most applications the
display decimal point will be set accordingly (i.e. 4 places).
If 2 decimal places are selected, the number 12.3456 is displayed as 12.35; notice that the number is
rounded up.
39
Page 40
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Scaling the PV Display Values (sCale)
The data that the scanner receives can be scaled to display in engineering units. Input 1 must be less
than Input 2, Input 2 must be less than Input 3, etc. (known as monotonic values). Press Enter to save
the changes or Menu to exit without saving. When the Linear function is selected for PV1 & PV2, up to 32
points may be programmed to handle non-linear data. Only two points are available for all other PVs and
for either the Square Root or Programmable Exponent functions. Round Horizontal Tanks are scaled
using the length and diameter of the tank.
Scale Menu
The display will show Error if the scaling or calibration process is unsuccessful. Undesired operation
may occur if the error is not corrected. Correct the error by either changing one of the inputs in question
or changing the number of points to exclude an erroneous input point.
Note 1: For Feet & Inches Display format, the display values will be in the format 99
Make the left digit for inches and 16
Inches, and 8/16 will be displayed as 50
th
blank if the value is less than 10. Example: 50 Feet, 9
FT
_9 IN _8
16th
instead of 50 FT 09 IN 08
FT
11 IN 15
/16th
/16th
or 8th.
.
Note 2: Scaling Short and Long input values (input 1, input 2, etc.) should be done without the decimal
point.
Multi-Point Linearization (Linear)
The scanner is set up at the factory for 2-point linear scaling. Up to 32 linearization points may be
selected for PV1 and PV2. All other PVs have two linearization points available. See page 79 for details.
ScanView Software
The scanner can also be programmed using the PC-based ScanView software available for free
download at www.predig.com.
In order to configure the scanner using a computer, the scanner must be connected using an RS-485 to
USB converter or an RS-485 to RS-232 converter; see ORDERING INFORMATION on page 8.
Monitoring and data logging for one scanner (Master mode) is available with ScanView software. All the
enabled PVs and math channels may be logged to a single .csv file.
The ScanView software synchronizes with the scanner in Master mode, one second after the scanner has
completed a polling cycle.
Note:The poll time of the scanner must be greater than 5 seconds to prevent collisions on the bus.
40
Page 41
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Setting Up the Displays (dsplay setup)
Top Display Parameters (top dsplay)
The top display (top) can be programmed to display any of the following:
Display Parameter Setting Description
D pv
D Ch-C
Pv.unit
Tg.pvn
Tg.pvn.u
C.unit
Tg. C. u
Dset 1
Hi-pv
Lo-pv
Hi-C
Lo-C
Display PV
Display C Channel
Display PV & Units
Display Tag, PV Number
Display Tag, PV# & Units
Display C & Units
Display Tag, C, & Units
Display Set Points 1-8
Display Max PV 1-16
Display Min PV 1-16
Display Max Ch C1-C4
Display Min Ch C1-C4
Display PVs 1-16
Display Math Channels C1-C4
Display PV & Units
Display Tag & PV Number selected
Display Tag, PV Number selected, & Units
Display C1-C4 & Units
Display Tag, C1-C4 & Units
Display Set Points 1-8
Display Maximum value for each enabled PV1-16
Display Minimum value for each enabled PV1-16
Display Maximum for math channels C1-C4
Display Minimum for math channels C1-C4
Bottom Display Parameters (botomdsplay)
The bottom display (botom) can be programmed to display any of the following:
Display Parameter Setting Description
D pv
D Ch-C
Pv.unit
Tg.pvn
Tg.pvn.u
C.unit
Tg. C. u
Dset 1
Hi-pv
Lo-pv
Hi-C
Lo-C
D tag
D tag.u
D off
Display PV
Display C Channel
Display PV & Units
Display Tag, PV Number
Display Tag, PV# & Units
Display C & Units
Display Tag, C, & Units
Display Set Points 1-8
Display Max PV 1-16
Display Min PV 1-16
Display Max Ch C1-C4
Display Min Ch C1-C4
Display Tag
Display Tag & Units
Display off
Note: Toggling displays use the Scan Time for the value and 2 seconds for Tag and Units.
Display PVs 1-16
Display Math Channels C1-C4
Display PV & Units
Display Tag & PV Number selected
Display Tag, PV Number selected, & Units
Display C1-C4 & Units
Display Tag, C1-C4 & Units
Display Set Points 1-8
Display Maximum value for each enabled PV1-16
Display Minimum value for each enabled PV1-16
Display Maximum for math channels C1-C4
Display Minimum for math channels C1-C4
Display Tag (Bottom display only)
Display Tag & Units (Bottom display only)
Display Off (Bottom display only)
Display Intensity (d-IntY)
The scanner has eight display intensity levels to give the best performance under various lighting
conditions. Select intensity 8 for outdoor applications. The default intensity setting is 8.
41
Page 42
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Top Display Menu (top dsplay)
Bottom Display
Setup continues
from here.
Continues
to
Relay Setup.
Continues
to Bottom
Display Setup.
Note: For Tag-PVn and Tag-PVn-U, the default settings for PVs are 1,3,5,&7, followed by two
underscores, which represent empty PVs. These all can be changed to any enabled PVs.
Continues
to Bottom
Display Setup.
Continues
to Bottom
Display Setup.
42
Page 43
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Bottom Display Menu (botomdsplay)
Continues
to Display
Intensity Setup.
Continues
to Display
Intensity Setup.
Note: For Tag-PVn and Tag-PVn-U, the default settings for PVs are 2,4,6,& 8, followed by two
underscores, which represent empty PVs. These all can be changed to any enabled PVs.
Continues
to Display
Intensity Setup.
Continues
to Display
Intensity Setup.
43
Page 44
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Setting the Tags (tAg) & Units (units)
Each PV can be setup with its own tag and units. See the flow charts on the previous pages to access the
display menu to show the tag or toggling tag & units. The engine ering un its and custom t ags can be set
using the following 7-segment character set:
Display Character Display Character
0
1
2
3
4
5
6
7
8
9
A
b
C
c
d
e
f
g
9
H
h
I
C
E
F
G
H
0
1
2
3
4
5
6
7
8
9
A
b
c
d
g
h
I
k
l
m
n
O
o
p
q
r
s
t
u
v
uw
x
y
z
-
/
[
]
=
K
L
m
n
O
o
P
q
r
S
t
u
V
w
X
Y
Z
-
/
]
[
=
I
j
Notes: Degree symbol represented by (<) if programming with ScanVi ew. The letters “m” and “w” use two
7-segment LEDs each; when selected the characters to the right are shifted one position. Press and
hold up arrow to auto-scroll the characters in the display.
i
J
!
Degree(<)
Space
44
Page 45
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Application Example 1
In this application we have a system consisting of (4) MTS M-Series multivariable tank level gauges
connected to (2) PD6080 displaying Product Level, Interface Level, and Average Temperature.
One of the Modbus Scanners is located next to the tanks and the other is located in the control room.
Register Numbers & Process Variables
30001 - Product Level
30003 - Interface Level
30017 - Average Temperature
45
Page 46
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
The following table shows the system setup for the MTS M-Series gauge, one PD6080 Master, and one
PD6080 Snooper:
Parameter
Mode Master Snooper
PV1 Slave ID 1 1
Function Code 04 04
Register PV1 30001 30001 Tank 1 Product Level
Data Type Long integer Long
Byte Order 1234 1234
PV2 Slave ID 1 1
Function Code 04 04
Register PV2 30003 30003 Tank 1 Interface
Data Type Long integer Long
Byte Order 1234 1234
PV3 Slave ID 1 1
Function Code 04 04
Register PV3 30017 30017 Tank 1 Average Temperature
Data Type Long integer Long
Byte Order 1234 1234
PV4 Slave ID 2 2
Function Code 04 04
Register PV4 30001 30001 Tank 2 Product Level
Data Type Long integer Long
Byte Order 1234 1234
PV5 Slave ID 2 2
Function Code 04 04
Register PV5 30003 30003 Tank 2 Interface
Data Type Long integer Long
Byte Order 1234 1234
PV6 Slave ID 2 2
Function Code 04 04
Register PV6 30017 30017 Tank 2 Average Temperature
Data Type Long integer Long
Byte Order 1234 1234
PV7 Slave ID 3 3
Function Code 04 04
Register PV7 30001 30001 Tank 3 Product Level
Data Type Long integer Long
Byte Order 1234 1234
PV8 Slave ID 3 3
Function Code 04 04
Register PV8 30003 30003 Tank 3 Interface
Data Type Long integer Long
Byte Order 1234 1234
PV9 Slave ID 3 3
Function Code 04 04
Register PV9 30017 30017 Tank 3 Average Temperature
PD6080
PD6080
Description/Comment
46
Page 47
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Parameter
Data Type Long integer Long
Byte Order 1234 1234
PV10 Slave ID 4 4
Function Code 04 04
Register PV10 30001 30001 Tank 4 Product Level
Data Type Long integer Long
Byte Order 1234 1234
PV11 Slave ID 4 4
Function Code 04 04
Register PV11 30003 30003 Tank 4 Interface
Data Type Long integer Long
Byte Order 1234 1234
PV12 Slave ID 4 4
Function Code 04 04
Register PV12 30017 30017 Tank 4 Average Temperature
Data Type Long integer Long
Byte Order 1234 1234
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Application Example 2
In this application we have a system consisting of (4) MTS M-Series multivariable tank level gauges
connected to (2) PD6081s displaying Product Level, Interface Level, and Average Temperature.
One of the Modbus Scanners is located next to the tanks and the other is located in the control room. The
display readout is shown in sixteenths of an inch.
Register Numbers & Process Variables
30001 - Product Level
30003 - Interface Level
30017 - Average Temperature
Note: The example above shows the PD6081. The setup of the scanner is the same as the first
example. The PD6081’s Feet & Inches display is clearly visible.
48
Page 49
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Setting the Relay Operation (relay)
This menu is used to set up the assignment and operation of the relays.
Relay Setup Menu (relay setup)
Up Arrow cycles
through all
available relays.
Up Arrow cycles
through all
enabled PVs and
multiple PVs.
Set Relay
!
Caution!
Action Menu
continues
from here.
Note: The setup for relays 2-8 follows the same
pattern shown here for relay 1.
During setup, the relays do not follow the input and they will
remain in the state found prior to entering the Relay menu.
cycles through all
then to BREAK.
1. Assign Relay assignment
a. Assign relay to PV
b. Assign relay to Math channel
c. Assign relay to multiple PVs (2 to 16 PVs)
2. Act 1 Relay action
a. Automatic reset only (non-latching)
b. Automatic + manual reset at any time (non-latching)
c. Latching (manual reset only)
d. Latching with Clear (manual reset only after alarm condition has cleared)
e. Pump alternation control (automatic reset only)
f. Sampling (the relay is activated for a user-specified time)
g. Off (relay state controlled by Interlock feature)
3. Set 1 Set point & Rst 1 Reset point
4. Failsf Fail-safe operation
a. On (enabled)
b. Off (disabled)
5. Delay Time delay
a. On delay (0-999.9 seconds)
b. Off delay (0-999.9 seconds)
6. Break Relay action for communications break or loss of 4-20 mA input
Enter Button
enabled relays
Enter Button
cycles through all
enabled relays
then to SETUP.
If Analog Output
is enabled, the
Aout Setup Menu
will appear first.
49
Page 50
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Setting the Relay Action (act 1)
Operation of the relays is programmed in the Action menu. The relays may be set up for any of the
following modes of operation:
1. Auto Automatic reset (non-latching)
2. A-nman Automatic + manual reset at any time (non-latching)
3. latcH Latching (manual reset only, at any time)
4. lt-CLr Latching with Clear (manual reset only after alarm condition has cleared)
5. Altern Pump alternation control (automatic reset only)
6. Sanmpl Sampling (the relay is activated for a user-specified time)
7. oFF Off (relay state controlled by Interlock feature)
The following graphic shows relay 1 action setup; relay 2-8 are set up in a simila r fashion.
Use Up Arrow
relay 1
relay 1
relay
relay
to scroll through
the menu
choices below.
50
Page 51
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Programming Set (set) & Reset (rst) Points
High alarm indication: program set point above reset point.
Low alarm indication: program set point below reset point.
The deadband is defined as the difference between set and reset points. Minimum deadband is one
display count. If the set and reset points are programmed with the same value, the relay will reset one
count below the set point.
Note: Changes are not saved until the reset point has been accepted.
Setting Fail-Safe Operation (failsf)
In fail-safe mode of operation, the relay coil is energized when the process variable is within safe limits
and the relay coil is de-energized when the alarm condition exists. The fail-safe operation is set
independently for each relay. Select on to enable or select off to disable fail-safe operation.
Programming Time Delay (delay)
The On and Off time delays may be programmed for each relay between 0 and 999.9 seconds. The
relays will transfer only after the condition has been maintained for the corresponding time delay.
The On time delay is associated with the set point.
The Off time delay is associated with the reset point.
Relay Action for Communications Break (break)
The Scanner will poll the slave device three times before reporting a communica tions break condition.
After the third failure, the Response Timeout timer starts and will determine the actual time to report a PV
in break condition.
1. Turn On (Go to alarm condition)
2. Turn Off (Go to non-alarm condition)
3. No Action (The relays will maintain the last condition)
Relay Action for Loss of 4-20 mA Input (Loop Break)
The loop break feature is associated with the 4-20 mA input. Each relay may be programmed to go to one
of the above conditions when the scanner detects the loss of the input signal (i.e. < 0.005 mA).
Notes:
1. This is not dependent on the Communications Break or Response Tim eout setting.
2. This is not a true loop break condition; if the signal drops below 0.005 mA, it is interpreted as a
“loop break” condition.
51
Page 52
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Relay and Alarm Operation Diagrams
The following graphs illustrate the operation of the relays, status LEDs, and ACK button.
High Alarm Operation (Set > Reset)
For Manual reset mode, ACK can be pressed anytime to turn "off" relay. To detect a new alarm condition,
the signal must go below the set point, and then go above it.
52
Page 53
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Low Alarm Operation (Set < Reset)
Input
Reset
Set
Relay
LED
Relay
LED
ACK
pressed
Relay
LED
ACK
pressed
energized
on
de-energized
off
Automatic (non-latching)
Automatic or Manual (non-latching)
Manual (latching)
Relay
LED
ACK
pressed
Manual only after passing above Reset (latching with clear)
For Manual reset mode, ACK can be pressed anytime to turn "off" relay. For relay to turn back "on", signal
must go above set point, and then go below it.
53
Page 54
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
High Alarm with Fail-Safe Operation (Set > Reset)
Input
Set
Reset
Relay
LED
Relay
LED
ACK
pressed
Relay
LED
ACK
pressed
energized
off
de-energized
on
Automatic (non-latching)
Automatic or Manual (non-latching)
Relay
LED
ACK
pressed
Manual (latching)
Manual only after passing below Reset (latching with clear)
Note: Relay coil is energized in non-alarm condition.
In case of power failure, relay will go to alarm state.
54
Page 55
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Low Alarm with Fail-Safe Operation (Set < Reset)
Input
Reset
Set
Relay
LED
Relay
LED
ACK
pressed
Relay
LED
ACK
pressed
de-energized
on
energized
off
Automatic (non-latching)
Automatic or Manual (non-latching)
Relay
LED
ACK
pressed
Manual (latching)
Manual only after passing above Reset (latching with clear)
Note: Relay coil is energized in non-alarm condition.
In case of power failure, relay will go to alarm state.
55
Page 56
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Pump Alternation Control Operation
Input
Relay1 Set
Relay2 Set
Relay1 &
Relay2 Reset
de-energized energized
Pump 1
Pump 2
Input
Relay1 Set
Relay2 Set
de-energized energized
Relay2 Reset
Relay1 Reset
56
Pump 1
Pump 2
Input
Relay1 Set
Relay2 Set
de-energized energized
Pump 1
Relay1 Reset
Relay2 Reset
LEDs indicate the relay status
Pump 2
Page 57
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Relay Sampling Operation
Input
Set
Reset
Sample
Time
Sample
Time
Sample
Time
Relay
LED
When the signal crosses the set point, the relay trips and the sample time starts. After the sample time
has elapsed, the relay resets. The cycle repeats every time the set point is crossed, going up for high
alarms and going down for low alarms.
The sample time can be programmed between 0.1 and 5999.9 seconds.
Relay Operation After Communications Break
When a Master scanner fails to receive a reply from the slave it is called a Communications Break. The
relays can be programmed to react to this event by going On, Off, or No Action. After communication is
restored the relays are turned off or on, based on their operating mode and their set and reset points,
without regard to their prior state. This is similar to the auto initialization on power up. Below is a diagram
showing three examples.
The same is true for a scanner set up to operate in Snooper mode.
Communications
Break
No Serial
Communications
Communications
Restored
Relay 1 to 3
Manual mode
Manual mode
Relay 3 Set
Relay 2 Set
Relay 1 Set
Reset
Relay 1
Relay 2
Relay 3
Auto mode
Input
de-energized
energized
Communications
Break: No Act ion
Communications
Break: Relay " on"
Communications
Break: Relay " on"
57
Page 58
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Signal Loss or Loop Break Relay Operation
The following graph shows the loop break relay operation for a high alarm relay.
Input
Set
Reset
Relay
LED
de-energizedenergized
offon
Loop Break = Ignore
Relay
LED
Loop Break = Off
Relay
LED
Loop Break = On
When the scanner detects a break in the 4-20 mA loop, the relay will go to one of the following selected
actions:
1. Turn On (Go to alarm condition)
2. Turn Off (Go to non-alarm condition)
3. No action (no Act) (Processed as a low signal condition)
58
Page 59
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Time Delay Operation
The following graphs show the operation of the time delay function.
Input
Set
Reset
<Tdelay<Tdelay>=Tdelay
Relay
LED
*
On Time Delay
Input
Set
Reset
<Tdelay<Tdelay>=Tdelay
Relay
LED
*
Off Time Delay
When the signal crosses the set point, the On time delay timer starts and the relay trips when the time
delay has elapsed. If the signal drops below the set point (high alarm) before the time delay has elapsed,
the On time delay timer resets and the relay does not change state. The same principle applies to the Off
time delay.
Note: If “Automatic or Manual (A-mAn)” reset mode is selected, the LED follows the reset point and not
the relay state when the relay is acknowledged.
59
Page 60
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Relay Operation Details
Overview
The relay capabilities of the scanner expand its usefulness beyond simple indication to provide users with
alarm and control functions. These capabilities include front panel alarm status LEDs, as well as either 2
or 4 optional internal relays, and/or 4 external relays via expansion modules. Typical applications include
high or low temperature, level, pressure or flow alarms, control applications such as simple on/off pump
control, and pump alternation control for up to 8 pumps. There are four basic ways the relays can be
used:
1. High or Low Alarms with Latching or Non-Latching Relays
2. Simple On/Off Control with 100% Adjustable Deadband
3. Sampling (Based on Time)
4. Pump Alternation Control for up to 8 Pumps
Relays Auto Initialization
When power is applied to the scanner, the front panel LEDs and alarm relays will reflect the state of the
input to the scanner after the first response from the slave device. The following table indicates how the
alarm LEDs and relays will react on power-up based on the set and reset points:
Alarm #
1 HI 1000 500 499 Off
2 LO 700 900 499 On
3 LO 250 400 499 Off
4 HI 450 200 499 On
HI or LO
Alarm
Set Point
Reset
Point
Power-Up
Reading
Relay &
LED
Fail-Safe Operation (failsf)
The following table indicates how the relays behave based on the fail-safe selection for each relay:
Fail-Safe
Selection
Off Open Closed Closed Open Relays go to non-alarm
On Closed Open Open Closed Relays go to alarm
Note: NO = Normally Open, NC = Normally Closed. This refers to the condition of the relay contacts when
the power to the scanner is off.
Non-Alarm State Alarm State Power Failure
NO NC NO NC
state
state
60
Page 61
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Front Panel LEDs
The LEDs on the front panel provide status indication for the following:
The scanner is supplied with four alarm points that include front panel LEDs to indicate alarm conditions.
This standard feature is particularly useful for alarm applications that require visual-only indication. The
LEDs are controlled by the set and reset points programmed by the user. When the display reaches a set
point for a high or low alarm, the corresponding alarm LED will turn on. When the display returns to the
reset point the LED will go off. The front panel LEDs respond differently for latching and non-latching
relays.
For non-latching relays, the LED is always off during normal condition and always on during alarm
condition, regardless of the state of the relay (e.g. Relay acknowledged after alarm condition).
For latching relays, the alarm LEDs reflect the status of the relays, regardless of the alarm condition. The
following tables illustrate how the alarm LEDs function in relation to the relays and the acknowledge
button (Default: F3 key assigned to ACK):
Latching and Non-Latching Relay Operation
The relays can be set up for latching (manual reset) or non-latching (automatic reset) operation.
Relay terminology for following tables
Terminology Relay Condition
On Alarm (Tripped)
Off Normal (Reset)
Ack Acknowledged
The On and Off terminology does not refer to the status of the relay’s coil, which depends on the fail-safe
mode selected.
In latching relay mode, latched relays will reset (unlatch)
Warning!
when power is cycled.
Non-Latching Relay (Auto)
Automatic reset only
Condition LED Relay
Normal Off Off
Alarm On On
Ack (No effect) On On
Normal Off Off
In this application, the scanner is set up for automatic reset (non-latching relay). Acknowledging the alarm
while it is still present has no effect on either the LED or the relay. When the alarm finally goes away, the
relay automatically resets and the LED also goes off.
61
Page 62
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Non-Latching Relay (A-man)
Automatic + manual reset at any time
Condition LED Relay
Normal Off Off
Alarm On On
Normal Off Off
Next Alarm On On
Ack On Off
Normal Off Off
In this application, the scanner is set up for automatic and manual reset at any time (non-latching relay).
The LED and the relay automatically reset when the scanner returns to the normal condition.
The next time an alarm occurs, the operator acknowledges the alarm manually while the alarm condition
still exists. This causes the relay to reset, but the LED stays on until the scanner returns to the normal
condition.
Latching Relay (LatcH)
Manual reset any time
Condition LED Relay
Normal Off Off
Alarm On On
Ack Off Off
In this application, the scanner is set up for manual reset at any time. Acknowledging the alarm even if
the alarm condition is still present resets the relay and turns off the LED.
Latching Relay (Lt-Clr)
Manual reset only after alarm condition has cleared
Condition LED Relay
Normal Off Off
Alarm On On
Ack (No effect) On On
Normal On On
Ack Off Off
In this application, the scanner is set up for manual reset only after the signal passes the reset point
(alarm condition has cleared). Acknowledging the alarm while it is still present has no effect on either the
LED or the relay. When the alarm is acknowledged after it returns to the normal state, the LED and the
relay go off. Notice that the LED remains on, even after the scanner returns to the normal condition. This
is because, for latching relays, the alarm LED reflects the status of the relay, regardless of the alarm
condition.
62
Page 63
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Acknowledging Relays
There are two ways to acknowledge relays programmed for manual reset:
1. Via the programmable F4 digital input assigned to ACK (Default) and connected to a normally
open pushbutton wired across F4 and COM.
2. Remotely via a normally open pushbutton wired across one of the digital inputs and the +5 V
terminals on the digital I/O modules, which is triggered with a contact closure to COM, or with an
active low signal (see page11).
When the ACK button or the assigned digital input is closed, all relays programmed for manual reset are
acknowledged.
P-F4P+COM V+
34125
mA+ COM V+mA+
7869
Ack
Figure 18. Acknowledge Relays with F4 Function Key
PDA1044 Digital I/O Module
12345678910
+5I1I2I3I4O1O2O3O4G
DI 1-4
ACK
Figure 19. Acknowledge Relays with Digital Input
DO 1-4
GND
63
Page 64
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Pump Alternation Control Applications (Altern)
For pump control applications where two or more similar pumps are used to control the level of a tank or a
well, it is desirable to have all the pumps operate alternately. This prevents excessive wear and
overheating of one pump over the lack of use of the other pumps.
Up to 8 relays can be set up to alternate every time an on/off pump cycle is completed. The set points
and reset points can be programmed, so that the first pump on is the first pump off.
Application #1: Pump Alternation Using Relays 1 & 2
1. Relays 1 and 2 are set up for pump alternation.
2. Relays 3 and 4 are set up for low and high alarm indication.
Set and Reset Point Programming with Pump Alternation
1. Pump #1 turns on when the level reaches 30.000, when level drops below 10.000 pump #1 turns off.
2. The next time the level reaches 30.000, pump #2 turns on, when the level drops below 10.000, pump
#2 turns off.
3. If the level doesn’t reach 35.000 pump #1 and pump #2 will be operating alternately.
4. If pump #1 cannot keep the level below 35.000 pump #2 will turn on at 35.000, then as the level drops
to 10.000 pump #1 turns off, pump #2 is still running and shuts off below 5.000.
5. Notice that with the set and reset points of pump #2 outside the range of pump #1, the first pump on
is the first pump to go off. This is true for up to 8 alternating pumps, if set up accordingly.
6. Relay #3 will go into alarm if the level drops below 4.000 and relay #4 will go into alarm if the level
exceeds 40.000.
7. Adding the 4 external relays expansion module allows using the 4 SPDT internal relays for pump
alternation and the 4 SPST external relays for high, high-high, low, and low-low alarm indication.
64
Page 65
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Setting Up the Interlock Relay (Force On) Feature
Relays 1-4 can be set up as interlock relays. To set up the relays for the interlock feature:
1. Access the Setup – Relay – Action menu and set the action to off.
2. In the Advanced features – User menu, program any of the digital inputs to Force On any of the
internal relays (1-4). The Advanced Features Menu can be found on page 69.
3. Connect a switch or dry contact between the +5V terminal and the corresponding digital input (dI-1 to
dI-4) terminal.
SW2
SW1
123456
+5I1I2I3I4O1
5 VDCGND
DI 1-4DO 1-4
78
O2O3
910
O4G
Interlock Relay Operation Example
Relays 1 & 2 are configured to energize (their front panel LEDs are off) when SW1 & SW2 switches
(above) are closed. If the contacts to these digital inputs are opened, the corresponding front panel LEDs
flash, indicating this condition. The processes being controlled by the interlock relay will stop, and will restart only after the interlock relay is re-activated by the digital inputs (switches).
Note: If multiple digital inputs are assigned to the same relay, then the corresponding logic is (AND) – i.e.
both switches must be closed to trip the relay.
65
Page 66
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Scaling the 4-20 mA Analog Output (Aout)
The 4-20 mA analog outputs can be scaled to provide a 4-20 mA signal for any display range selected.
The Analog Outputs can be mapped to PVs or Math Channels. To select the channel and source
assignments the analog outputs are assigned to, see Analog Output Source Programming on page 90.
No equipment is needed to scale the analog outputs; simply program the display values to the
corresponding mA output signal.
The Analog Output menu is used to program the 4-20 mA outputs based on display values.
There are three analog outputs available. These only display when they are enabled. See graphic below.
**
Notes: Changes to the settings are saved to memory only after pressing ENTER. Changes made to
settings prior to pressing ENTER are not saved. Once ENTER is pressed, the display moves to the next
menu.
* If Installed
66
Page 67
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Setting Up the Password (pass)
The Password menu is used for programming three levels of security to prevent unauthorized changes to
the programmed parameter settings.
Pass 1: Allows use of function keys and digital inputs
Pass 2: Allows use of function keys, digital inputs and editing set/reset points
Pass 3: Restricts all programming, function keys, and digital inputs
Record the password for future reference. If appropriate, it may be recorded in the space provided.
Enter the Password menu and program a six-digit password.
.
Run Mode
67
Page 68
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Password Menu
Making Changes to a Password Protected Scanner
If the scanner is password protected, the scanner will display the message Locd (Locked) when the Menu
button is pressed. Press the Enter button while the message is being displayed and enter the correct
password to gain access to the menu. After exiting the programming mode, the scanner returns to its
password protected condition.
Disabling Password Protection
To disable the password protection, access the Password menu and enter the correct password twice, as
shown below. The scanner is now unprotected until a new password is entered.
Run Mode
Enter
Password
Enter
Password
If the correct six-digit password is entered, the scanner displays the message unLoc (Unlocked) and the
protection is disabled until a new password is programmed.
If the password entered is incorrect, the scanner displays the message Locd (Locked) for about two
seconds, and then it returns to Run Mode. To try again, press Enter while the Locked message is
displayed.
Did you forget the password?
The password may be disabled by entering a
master password once. If you are authorized
to make changes, enter the master password
508655 to unlock the scanner.
68
Page 69
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
ADVANCED FEATURES MENU
To simplify the setup process, functions not needed for most applications are located in the Advanced
Features menu:
1. Scan Mode: Auto or manual; Go on alarm or stop on alarm
2. Control relays and analog output
3. Noise Filter
4. Noise Filter Bypass
5. Rounding Feature
6. Select Math, Linearization function, Cutoff
7. User Programming for function keys and digital I/O
8. Analog Channels Input Calibration
9. Copy Feature
10. System Information
Run Mode
Press & hold
Menu for 3 sec to
access Advanced
features
Up Arrow: use to scroll through menu choices
Menu:press to exit and return to Run Mode
Enter/Scan: press to make/accept selections
Advanced Menu Navigation Tips::
• Press and hold the Menu button for three seconds to access the Advanced Features Menu.
• Press the Up arrow button to scroll through the Advanced Features Menu.
• Press Menu at any time, to exit and return to Run mode.
• Changes made to settings prior to pressing Enter/Scan are not saved.
• Changes to the settings are saved to memory only after pressing Enter/Scan.
• The display automatically moves to the next menu every time a setting is accepted by pressing
Enter/Scan.
69
Page 70
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Advanced Features Menu & Display Messages
Display Parameter Action/Setting
sCan
mode
Auto
time
man
Alarm
go
Stop
Contrl
Auto
man
Aout 1
rly 1
on
off
filter
Pv 1
Pv 2
bypass
Pv 1
Pv 2
round
1*
select
functn
Pv 1*
Ch C1*
Linear
No pts
sCale
Inp 1
Dis 1
Inp 2
Dis 2
square
Prog e
1.5000
rht
Inch
cm
diamr
Length
Scan
Scan Mode
Automatic
Scan Time
Manual
Alarm
Go
Stop
Control
Automatic
Manual
Analog Output 1
Relay 1
On
Off
Filter
PV 1 Filter
PV 2 Filter
Filter Bypass
PV 1 Filter Bypass
PV 2 Filter Bypass
Rounding Feature
1 Rounding Value
Select
Function
PV 1 Function
Ch C1 Function
Linear
Number of Points
Scale
Input 1
Display 1
Input 2
Display 2
Square Root
Programmable Exponent
Programmable Exponent Value
Round Horizontal Tank
Inch
Centimeters
Diameter
Length
Enter Scan menu
Select Auto or Manual Scan Mode
Select Automatic Scan Mode
Select Scanning Time
Select Manual Scan Mode
Select Go or Stop Alarm
Select Alarm Go
Select Alarm Stop
Enter Control menu for relays and analog output 1
Select Automatic Control of Outputs and Relays
Select Manual Control of Outputs and Relays
Select Analog Output 1 for manual control
Select Relay 1-8 for manual control
Select On for Relay 1-8
Select Off for Relay 1-8
Enter Filter menu
Program Filter Value for PV 1
Program Filter Value for PV 2
Enter Filter Bypass menu
Program Filter Bypass Value for PV 1
Program Filter Bypass Value for PV 2
Enter Rounding Feature menu
Program Rounding Value for PV
*(User-selectable & rounds to the nearest 1, 2, 5, 10, 20, 50, 100)
Enter Select menu
Enter data LinearizationFunction menu
*Enter LinearizationFunction menu for all enabled PVs
*Enter LinearizationFunction menu for all enabled math channels
Enter Linear menu
Enter Number of Linearization Points
Scale Number of Linearization Points
Calibrate input 1 signal or program input 1 value
Program display 1 value
Calibrate input 2 signal or program input 2 value (up to 32 points for PV1 & PV2)
Program display 2 value (up to 32 points for PV1 & PV2)
Enter Square Root menu
Enter Programmable Exponent menu
Enter the Programmable Exponent Value
Enter Round Horizontal Tank menu
Enter to calculate tank values in Inches
Enter to calculate tank values in Centimeters
Enter tank diameter
Enter tank length
70
Page 71
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Display Parameter Action/Setting
math
Ch C1*
Opertn
Const
Adder
FACtr
sum
dif
difabs
avg
multi
divide
Hi-pv
Lo-pv
drauwuwavg
ratio
Concen
math2
sum
dif
difabs
avg
multi
divide
Cutoff
Pv 1
Pv 2
aoutPr
Aout 1*
SourCE
Pv 1*
Ch C1*
Set 1*
break
ignore
force
CALib
mAx
min
O-rang
U-rang
user
F1*
Math
Channel C1
Operation
Constant
Adder
Factor
Sum
Difference
Absolute Difference
Average
Multiply
Divide
Max
Min
Draw
Weighted Average
Ratio
Concentration
Math2
Sum
Difference
Absolute Difference
Average
Multiply
Divide
Cutoff
PV 1 Cutoff
PV 2 Cutoff
Analog Output Program
Analog Output 1-3
Analog Output Data Source
Source PV
Source Math Channel
Set Point 1-8
Communications Break
Ignore Break
Force Break
Calibration
Maximum
Minimum
Overrange
Underrange
User
F1-4
Enter Math menu
*Enter Math Channel C1-C4 menu
Enter Math Operation menu
Enter Math Constant menu
Enter Adder Value
Enter Factor Value
Math Function Sum
Math Function Difference
Math Function Absolute Difference
Math Function Average
Math Function Multiply
Math Function Divide
Math Function Maximum of all selected PVs
Math Function Minimum of all selected PVs
Math Function Draw
Math Function Weighted Average
Math Function Ratio
Math Function Concentration
Resultant Math
Math operation applied to other math channels (e.g. C3 = C1/C2)
Math2 Function Sum
Math2 Function Difference
Math2 Function Absolute Difference
Math2 Function Average
Math2 Function Multiply
Math2 Function Divide
Enter Low Flow Cutoff menu
Program Cutoff Value for PV 1
Program Cutoff Value for PV 2
Enter Analog Output Programmable parameters menu
*Analog Output 1-3 (If Installed)
Enter Analog Output Data Source menu
*Select PV for Analog Output Data Source
*Select C1-4 for Analog Output Data Source
*Select Set Points 1-8
Enter the Analog Output value when Communications Break is detected
Ignore Break
Force Break
Enter the Analog Output Calibration menu
Select Maximum value for all Analog Outputs
Select Minimum value for all Analog Outputs
Enter the Analog Output value for an Overrange condition
Enter the Analog Output value for an Underrange condition
Enter the User menu for assigning function keys and digital I/O
*F1-F4 Function Keys
Channel
71
Page 72
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Display Parameter Action/Setting
prev
next
SCAn
Ack
reset
Rst Hi
Rst Lo
Rst HL
relay
Set 1*
Rly d
Rly e
O Hold
d Hold
disabl
Contrl
dI 1*
menu
right
up
enter
F on 1*
dO 1*
Alm 1*
Ack
reset
Rst Hi
Rst Lo
Rst HL
disabl
ICAL
Ch-A
Ch-b
mA
C CAL
C Lo
C Hi
volt
v CAL
v Lo
v Hi
error
Copy
send
done
Previous
Next
Scan
Acknowledge
Reset
Reset Max
Reset Min
Reset Max-Min
Relay
Set Points 1-8
Relay Disable
Relay Enable
Output Hold
Display Hold
Disable
Control
DI 1-8
Menu
Right
Up
Enter
Force On Relay 1
DO 1-8
Alarm 1-8
Acknowledge
Reset
Reset Max
Reset Min
Reset Max-Min
Disable
Input Calibration
Channel A
Channel B
Milliamps
Milliamp Calibration
Milliamp Low Signal
Milliamp High Signal
Volts
Voltage Calibration
Voltage Low Signal
Voltage High Signal
Error
Copy
Send
Done
Previous PV
Next PV
Scan or pause scan
Acknowledge relays
Enter Reset menu
Reset Maximum
Reset Minimum
Reset Maximum & Minimum
Relay menu
Set Points 1-8
Relay Disable (all relays)
Relay Enable (all relays)
Output Hold (all relays)
Display Hold (while held low)
Disable
Control menu
*Digital Inputs 1-8
Menu
Right
Up
Enter
*Force On Relay 1-4
*Digital Outputs 1-8
*Alarm 1-8
Acknowledge
Enter Reset menu
Reset Maximum
Reset Minimum
Reset Maximum & Minimum
Disable
Enter analog channels Input Calibration menu
Enter Input Channel A
Enter Input Channel B
Enter Milliamps
Enter Milliamp Calibration
Enter Milliamp Low Signal
Enter Milliamp High Signal
Enter Volts
Enter Voltage Calibration
Enter Voltage Low Signal
Enter Voltage High Signal
Error Message for Unsuccessful Calibration
Enter Copy menu
Indicates copying in progress
Indicates copying has completed
72
Page 73
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Display Parameter Action/Setting
diag
reset
Led t
info
sft
ver
Diagnostic
Reset
LED Test
Info
Software
Software Version
Enter Diagnostics menu
Reset to Factory Defaults
LEDs cycle through all digits, decimal points, and indicators
Displays Scanner information
Displays Software information
Displays Software Version information
73
Page 74
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Scan Function (SCan)
The Scan menu is used to program the PV scan mode and the scanner’s behavior on alarm condition.
The operator is able to scan automatically based on a time parameter, or scan manually with front panel
keys or digital inputs. The operator is also able to set the scanner to stop on alarm or continue scanning
on alarm. To resume scanning the operator must press the Next or Previous button. Please follow the
menu below for details. In the Stop on Alarm mode, the scanner will go to the alarmed PV and remain
there until the operator manually advances to the next PV or returns to the previous PV. If a new alarm is
detected the process is repeated. The scanner ignores old alarms.
Continues
to
Control Menu.
74
Page 75
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Control Menu (Contrl)
The Control menu is used to control the 4-20 mA analog output and the relays manually, ignoring the
input. Each relay and analog output can be programmed independently for manual control. Selecting
automatic control sets all relays and analog output for automatic operation.
Once Manual mode is initiated on any relay or
analog output, an LED labeled “M” is turned
on. Every few seconds, all LEDs representing
outputs that are in Manual mode, as well as
the “M” LED flash. This process will continue
as long as any output is in manual mode.
To
FILTER
Menu
To
Relays 2-8
75
Page 76
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Noise Filter (filter)
Most applications do not require changing this parameter. It is intended to help attain a steady display
with unsteady (noisy) input data. The field selectable noise filter averages any minor or quick changes in
the input data and displays the reading with greater stability. Increasing the filter value will help stabilize
the display. However, this will reduce the display response to changes on the input data. The filter level
may be set anywhere from 2 to 199. Setting the filter value to zero disables the filter function, and the
bypass setting becomes irrelevant. This parameter is associated with the analog input channels.
76
Page 77
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Noise Filter Bypass (bypass)
The scanner can be programmed to filter small input changes, but allow larger input changes to be
displayed immediately, by setting the bypass value accordingly. If the input signal goes beyond the
bypass value, it will be displayed immediately with no averaging done on it. The noise filter bypass value
may be set anywhere from 0.2 to 99.9. Increasing the bypass value may slow down the display response
to changes on the input signal. This parameter is associated with the analog input channels.
Rounding Feature (round)
The rounding feature is used to give the user a steadier display with fluctuating signals. Rounding is used
in addition to the filter function. Rounding causes the display to round to the nearest value according to
the rounding criteria selected by the user. This setting affects the last three digits, regardless of decimal
point position.
77
Page 78
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Select Menu (SELect)
The Select menu is used to select the input data linearization function (linear, square root, programmable
exponent, or round horizontal tank), math functions, constants, low-flow cutoff, and analog output
programming. Multi-point linearization is part of the linear function selection.
Input Data Conditioning Function Menu (Functn)
The Function menu is used to select the input-to-output transfer function applied to the input data: linear,
square root, programmable exponent, or round horizontal tank volume calculation. Multi-point
linearization (for PV1 and PV2) is part of the linear function selection. Scanners are set up at the factory
for linear function with 2-point linearization. The linear function provides a display that is linear with
respect to the input data (e.g 0.000 = 0.000, 10.000 = 10.000, and then 5.000 = 5.000).
78
Page 79
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Linear Function Menu (Linear)
Scanners are set up at the factory for linear function with 2-point linearization. Up to 32 linearization
points can be selected for PV1 and PV2 under the Linear function in the Advanced Features menu. The
multi-point linearization can be used to linearize the display for non-linear signals such as those from level
transmitters used to measure volume in odd-shaped tanks or to convert level to flow using weirs and
flumes with complex exponents.
Note: Multi-point Linearization applies to PV1 and PV2 only. All other PVs use two linearization points.
Program
Number of
Points 2 - 32
SAVED flashes
before moving
to next PV.
79
Page 80
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Square Root Function Menu (Square)
The square root function is used to calculate flow measured with a differential pressure transmitter. The
flow rate is proportional to the square root of the differential pressure. Scale the scanner so that the low
input signal (e.g. 4 mA) is equal to zero flow and the high input signal (e.g. 20 mA) is equal to the
maximum flow.
SAVED flashes
before moving
to next PV.
80
Page 81
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Programmable Exponent Function Menu (prog e)
The programmable exponent function is used to calculate open-channel flow measured with a level
transmitter in weirs and flumes. The flow rate is proportional to the head height. Scale the scanner so that
the low input signal (e.g. 4 mA) is equal to zero flow and the high input signal (e.g. 20 mA) is equal to the
maximum flow. This method works well for all weirs and flumes that have a simple exponent in the flow
calculation formula. For weirs and flumes with complex exponents it is necessary to use a strapping table
and the 32-point linearization of the scanner.
SAVED flashes
before moving
to next PV.
81
Page 82
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Round Horizontal Tank Function Menu (rht)
This function is used to calculate volume in a round horizontal tank with flat ends. The volume is
calculated based on the diameter and length of the tank. The tank’s dimensions can be entered in inches
or centimeters; the scanner automatically calculates the volume in gallons or liters. After entering the
dimensions, complete the scaling process with the display values calculated by the scanner. The scanner
can be re-scaled to display the volume in any engineering unit without the need to re-enter the
dimensions again.
82
SAVED flashes
before moving
to next PV.
Page 83
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Changing the Volume from Gallons to Liters
In the above graphic, entering the 48" for the diameter and 120" for the length of the round horizontal
tank, the scanner automatically calculates that the volume of the tank is 940.02 gallons.
1. Convert gallons to liters
1 US gallon = 3.7854 L
940.02 gal = 3558.4 L
2. Go to the Setup - PV - Decimal Point menu and change the decimal point to 1 decimal.
3. Go to the Setup - PV - Scale menu and press Enter until dis 2 is shown on the top display.
4. Press Enter and change the display 2 value to 3558.4.
5. The scanner is now displaying the volume in liters.
Note: The display can be scaled to display the volume in any engineering units.
Math Functions (math)
The Math menu is used to select the math function that will determine the channels’ C1-C4 value. These
math functions are applied to PVs and other math channels. The results are displayed by selecting
Display Channel C (d Ch C) in the Display menu. Most math functions may be applied to all PVs: For
example it is possible to add up to 16 PVs and calculate the total volume of all the tanks in a field. The
Math2 function allows for further calculations on the results of other math channels (e.g. C4 = C2/C1).
The following math functions are available:
Name
Addition (PV1+PV2+P)*F
Difference (PV1-PV2+P)*F
Absolute difference ((Abs(PV1- PV2)+P)*F
Average (((PV1+PV2)/2)+P)*F
Multiplication ((PV1*PV2)+P)*F
Division ((PV1/PV2)+P)*F
Max PV Max value of all selected PVs
Min PV Min value of all selected PVs
Draw ((PV1/PV2)-1)*F
Weighted average ((PV2-PV1)*F)+PV1
Ratio (PV1/PV2)*F
Concentration (PV1/(PV1+PV2))*F
Math 2 Math on other math channels
The Math Constants menu is used to set the constants used in the math channel. The math functions
include the selected PVs, as well as the constants P (Adder) and the Factor F (Multiplier) as indicated in
the above examples.
The Adder constant (P) may be set from -99.999 to 999.999.
The Factor constant (F) may be set from 0.001 to 999.999.
The above chart details the math functions that may be selected in the Math Function menu.
83
Page 84
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Math Function Menu (math)
Main Math Channels:
Each PV is represented by an
underscore. There are 6 lines
shown and ten lines hidden. Enter
any or all PVs without leaving a
space. Any spaces will s ignal the
meter to end the equat i on there.
Move to the next PV by pr essing
C
the Up Arrow.
Math2 Channel:
Each Math Channel C1, C2, C3, C4 is
represented by an underscore. There
are 4 lines shown for most equations,
two for others. Enter any or all Math
Channels without leaving a s pace.
Any spaces will signal the met er
to end the equation ther e. Move to
the next PV by pressing t h e Up Arrow.
A+B
A*B
((A/B)-1)*F
A-B
A/B
((B-A)*F)+A
abs
A-B
Max
F
(A+B)/2
Min
(A/(A+B))*F
P
(A/B)*F
Notes:
1. In the above menu, “A” & “B” in equations can represent any PVs (PV1-PV16). See table above.
2. Each digit represents one PV in hexadecimal format, except PV16 (G).
3. PV1 – PV9 = 1 - 9, PV10 – PV16 = A – G
4. No PV selected = “underscore symbol”
5. Digit range: 1-G, then “_”
6. If there is an empty digit, the scanner will end the equation at that point.
7. For Math2 Channel, “C” is fixed, indicating which Math Channels are being processed.
8. Please refer to the following graphics for details on various Math Functions:
84
Page 85
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Sum Menu (sunm)
dif
difAbs
Avg
multi
divide
Hi-PV
Lo-PV
draw
wAvg
ratio
Concen
Difference Menu (dif)
Add
PV1+2+3+4+5+6
Select more PVs
dif
difAbs
Avg
multi
divide
Next
Subtract
PV1-2-3-4-5-6
Next
Difference Absolute Menu (difAbS)
Difference Absolute (dif abs) is similar to Difference.
Average Menu (avg)
Average
(PV1+2+3+4+5+6)/6
Select more PVs
Next
Select more PV s
Next
Next
85
Page 86
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Multiplication Menu (nmulti)
Multiplication (nmulti) is similar to Sum (i.e. PV1x2x3x4x5x6).
Divide Menu (divide)
Only two PVs at a time will be used for this function.
Division
(PV8/PV16)
To C-2
Next
Notes:
1. Press Up arrow to scroll through PV1 - PV16
2. The first PV is the dividend and the second PV is the divisor.
Maximum PV Menu (Hi-pv)
Next
Minimum PV Menu (Lo-pv)
Maximum of
PV1,2,3,4,5, 6
Minimum of
PV1,2,3,4,5, 6
Select more PV s
Next
Select more PV s
Next
Next
86
Page 87
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Draw Menu (drauw)
Only two PVs at a time will be used for this function.
Draw
((PV5/PV10) -1) *F
To C-2
Next
Notes:
1. Press Up arrow to scroll through PV1 - PV16
2. The first PV is the dividend and the second PV is the divisor.
Weighted Average Menu (uwAvg)
Only two PVs at a time will be used for this function
Weighted Average
((PV10-PV5) *F) + PV5
Next
Notes:
1. Press Up arrow to scroll through PV1 - PV16
2. The first PV selectedis the firstPV in the equation.
To C-2
87
Page 88
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Ratio Menu (ratio)
Only two PVs at a time will be used for this function
Ratio
(PV8/PV16)*F
To C-2
Next
Notes:
1. Pr ess Up arrow to s croll through PV1 - PV16
2. The first PV is the dividend and the second PV is the divisor.
Concentration Menu (Concen)
Only two PVs at a time will be used for this function
(PV1/(PV1+PV2)) *F
Next
Notes:
1. Press Up arrow to scroll through PV1 - PV16
2. The first PV is the dividend and the Sum of the PVs is the divisor.
Concentration
To C-2
88
Page 89
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Low-Flow Cutoff (CutofF)
The low-flow cutoff feature allows the scanner to be programmed so that the often unsteady output from a
differential pressure transmitter, at low flow rates, always displays zero on the scanner. The cutoff value
may be programmed from 0 to 999999. When the input data is below the cutoff value, the scanner will
display zero. Programming the cutoff value to zero disables the cutoff feature.
89
Page 90
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Analog Output Source Programming (aoutpr)
The 4-20 mA analog outputs can be programmed for source of data, overrange and underrange, absolute
maximum and minimum output, and communications break values. They can also be recalibrated.
All enabled
PVs 1-16 & all
Set Points 1-8
Underrange
Max
Min
To
RUN
Mode
• To calibrate the analog outputs, follow the graphic above.
• The overrange and underrange values are the values that will be output when the display shows an
overrange or underrange condition. This setting is common to all analog outputs.
•The maximum and minimum values are the absolute limits for the 4-20 mA output. This setting is
common to all analog outputs.
•The communications break value determines the mA output when a Slave fails to reply to a command
within the Response time.
90
Page 91
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
User Menu (user)
The User menu enables the operator to program the scanner’s function keys, digital inputs, and digital
outputs. This allows for customization of the PD6080/6081 by following the menus and settings below.
If installed, there
are up to 8 digital
inputs and outputs.
There are up
to eight Set
Points available.
Function Keys & Digital I/O Available Settings
Display Description Display Description
sCan
next
prev
Ack
reset
Rst Hi
Rst Lo
Rst HL
relay
Set 1
Rly d
Rly E
O Hold
D Hold
disabl
Contrl
Scan PVs
Next PV
Previous PV
Acknowledge alarm
Reset menu
Reset max
Reset min
Reset Max and Min (A, B, C)
Relay menu
Set point 1 - 8
Disable relay
Enable relay
Relay output hold
Display hold while active
Disable function key
Control menu
menu
Right
up
Enter
F on 1
F on 2
F on 3
F on 4
Alrm 1
Alrm 2
Alrm 3
Alrm 4
Alrm 5
Alrm 6
Alrm 7
Alrm 8
Menu button
Right arrow button
Up arrow button
Enter button
Force on relay 1
Force on relay 2
Force on relay 3
Force on relay 4
Alarm 1 (Digital Output)
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Digital Input Menu (dI 1)
If installed, there
are up to 8 digital
inputs and outputs.
There are up
to eight Set
Points available.
Digital Output Menu (dO 1)
If installed, there
are up to 8 digital
inputs and outputs.
92
Page 93
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Reset Menu (reset)
The Reset menu is used to reset the maximum or minimum reading (peak or valley) reached by the
process; both may be reset at the same time by selecting “reset high & low” (rst HL). This is applied to
all PVs and math channels.
Resetting is possible by going into the USER menu, selecting a function key or digital input, pressing
ENTER to take you to the next level, then pressing the Up arrow until you arrive at the RESET menu.
Press ENTER to assign the RESET menu to the selected function key or digital input. Now, when the
scanner is in Run Mode, pressing the selected function key will take you to the RESET menu, where you
can scroll through Reset Hi (Max), Reset Lo (Min), and Reset HiLo (Reset Max and Min), choosing what
value to reset. You can also select the specific reset function (e.g. Reset HiLo) to the selected digital input
or function key.
4-20 mA Output Calibration
• There is no need to recalibrate the 4-20 mA output
when first received from the factory.
• The 4-20 mA outputs is factory calibrated prior to
shipment. The calibration equipment is certified to NIST
standards.
CAUTION!
If an uncalibrated meter or a meter with less resolution is used, the calibration of the
4-20 mA output could be adversely affected.
!
The 4-20 mA output can be
recalibrated in the field. A calibrated
digital meter with an input range of at
least 25 mA and a resolution of 1 μA is
recommended.
4-20 mA Output Calibration Procedure
1. Wire the PD6080/6081 4-20 mA output to a current loop that includes a power supply (internal or
external 12 to 24 VDC), and the mA input on the digital meter. See page 23 for details.
2. Turn on all devices. Allow for a 15 to 30 minute warm-up.
3. Go to the Advanced Features menu, and navigate to the Analog Output Programming
(AoutPr)/Calibration (Calib) menu and press Enter..
4. The display will show 4 nmA. The PD6080/6081 mA output should now be close to 4 mA. Press
Enter and the display will show 04.000. Enter the actual value read by the digital mA meter and
press Enter.
5. The display will show 20 nmA. The PD6080/6081 mA output should now be close to 20 mA. Press
Enter and the display will show 20.000. Enter the actual value read by the digital mA meter and
press Enter.
6. The PD6080/6081 will now calculate the calibration factors and store them.
7. Press Menu to exit and return to Run mode.
93
Page 94
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Input Calibration Menu (ICAL)
To Run Mode if calibration is
successful, otherwise an
message will appear.
Recalibrating the Analog Input Channels (Ch-A & Ch-B)
The analog input channels are calibrated at the factory. If recalibration is needed, follow the flowchart
menu above and the instructions below.
1. Enter the ICAL menu to calibrate channel A and channel B.
2. Select mA or Volt
3. Apply the low (4 mA or 0 V) and high (20 mA or 10 V) signals as requested.
4. Press Enter to accept the values entered or press Menu to exit calibration without saving the
changes.
94
Page 95
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Error Message (Error)
An error message indicates that the calibration or scaling process was not successful. After the error
message is displayed, the scanner reverts to input 2 during calibration or scaling and to input 1 during
internal calibration, allowing the appropriate input signal to be applied or programmed.
The error message might be caused by any of the following conditions:
1. Input signal is not connected to the proper terminals, or it is connected backwards.
2. Minimum input span requirements not maintained.
Input Range Input 1 & Input 2 Span
4-20 mA 0.15 mA
±10 VDC
0.10 VDC
Scanner Copy Function (Copy)
The Copy function is used to copy (or clone) all the settings from one scanner to other scanners requiring
exactly the same setup and programming (i.e. Enabled PVs, display setup, scaling, decimal point, etc.).
Only the PDA1200 meter copy cable must be used for scanner-to-
Warning!
scanner copy function. Using standard CAT5 or other cable will cause
damage to both scanners.
Copy Function Requirements
To successfully copy settings from one scanner to another, both scanners must be set to Slave
Mode. Additionally, they must be the same model, have the same software version, and the
same baud rate setting. See Determining Software Version, page 98, for instructions.
PDA1200 Meter Copy Cable
Figure 20. Scanner Copy Connection
For information on Precision Digital cables and adapters, see page 8 for details.
95
Page 96
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Scanner Copy or Cloning Instructions
Do not connect the two scanners to the same signal
!
Caution!
Warning!
1. Remove Serial Modules from the scanners.
2. Set both scanners to Slave Mode.
3. Connect two scanners using a PDA1200 meter copy cable.
4. Do not connect the two scanners to the same signal source.
5. Power up both scanners. Leave Clone scanner in Run Mode.
6. Enter the Advanced Features menu of the Main scanner; see page 69.
7. Scroll to the Copy function using the Up arrow button then press Enter.
8. The scanner displays the message Send. Press Enter, the display flashes while sending data. The
message done is displayed when copying is completed.
Note: Do not disconnect PDA1200 meter copy cable from either scanner whil e display is flashing, as
copying is in progress.
9. The Clone scanner displays the message CPY Rc while being programmed then the message done
when copying is completed. The scanner initializes and returns to Run Mode using the same settings
as the Main Scanner.
10. If scanner to be cloned does not respond to the data being sent, refer to Copy Function Requirements on page 95.
11. Once copying has finished, disconnect copy cable and reconnect serial modules.
Using standard CAT5 or other cable will cause damage to
both scanners. Use PDA1200 meter copy cable only.
source while cloning. Internal calibration may be
affected.
96
Page 97
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
TROUBLESHOOTING
The rugged design and the user-friendly interface of the scanner should make it unusual for the installer
or operator to refer to this section of the manual. However, due to the many features and functions of the
scanner, it’s possible that the setup of the scanner does not agree with what an operator expects to see.
If the scanner is not working as expected, refer to the recommendations below.
Troubleshooting Tips
Symptom Check/Action
No display at all
Not able to change setup or programming, Locd is displayed
Scanner displays error message during scaling (Error)
3. Decrease the slave device’s transmit delay to <10ms
4. Snooper cannot read the same PV twice, check setup
Check:
1. Increase response time (t-resp) and/or transmit delay
(tr dly). This may require some trial and error, as these
are dependent upon the number of devices on the bus.
2. Internal Scan ID Modbus address. Addresses 256 (mA)
or 257 (V) are used for Channel A, while Addresses 258
(mA) or 259 (V) are used for Channel B.
Check:
1. Serial adapter and cable
2. Serial settings
3. Scanner address, baud rate, and transmit delay
Check:
Display assignment, it might be displaying max/ min
Display reading is not accurate
Relay operation is reversed
Relay and status LED do not
respond to signal
Flashing relay status LEDs
If the display locks up or the scanner does not respond at all
Other symptoms not described above
Check:
1. PV Scaling
2. Check format selected: Dec or Ft&In
Check:
1. Fail-safe in Setup menu
2. Wiring of relay contacts
Check:
1. Relay action in
2. Set and reset points
Relays in manual control mode or relay interlock switches opened.
Cycle the power to reboot the microprocessor.
Call Technical Support for assistance.
Setup menu
97
Page 98
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Diagnostics Menu (diag)
The Diagnostics menu is located in the AdvancedFeatures menu, to access Diagnostics menu see page
69. The diagnostics meu provides the user with the ability to reset the scanner to factory defaults, test the
display segments and view information about the software version number for troubleshooting purposes.
Press the Enter button to view the information or the Menu button to exit at any time.
Determining Software Version
To determine the software version of a scanner:
1. Go to the Diagnostics menu (diAG) and press Enter button.
2. Press Up arrow button and scroll to Information menu (Info).
3. Press Enter to access the software number (SFT) and version (UER) information. Write down the
information as it is displayed. Continue pressing Enter until all the information is displayed.
4. The scanner returns to Run Mode after displaying all the settings.
Reset Scanner to Factory Defaults
When the parameters have been changed in a way that is difficult to determine what’s happening, it might
be better to start the setup process from the factory defaults.
Instructions to load factory defaults:
1. Enter the Advanced Features menu, see page 69.
2. Press Up arrow to go to Diagnostics menu
3. Press and hold Right arrow for three seconds, press Enter when display flashes reset.
Note: If Enter is not pressed within three seconds, the display returns to Run Mode.
4. The scanner goes through an initialization sequence (similar as on power-up), and loads the factory
default settings.
Testing the Display LEDs
Enter the Diagnostic menu and press the ENTER button to get to the LED Test menu (led t). Press the
ENTER button to activate the LED Test. The PD6080/6081 will cycle through all digits, decimal points,
and relay indicators to enable the operator to see that all are functioning properly. Press the ENTER
button again to access the Information menu (info). Press the MENU button to return to Run Mode.
Run Mode
Press & hold MENU Button for 3 seconds
to access the Advanced Features Menu,
then press Up Arrow to scroll through menu
choices until you reach the Diagnostics Menu.
Meter resets
and restarts
with factory
default settings
LED Test:
Cycles through all
digits, decimal pts,
& warning lights.
Press & hold right
arrow for 3 seconds
to reset meter.
Press ENTER while
RESET flashes
to reset meter.
RUN Mode
To
98
Page 99
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
SCANNER OPERATION
The PD6080/6081 scanner is capable of operating as a Modbus Master, Slave or Snooper. As a Slave,
the PD6080/6081 requires connection to a Master device: PLC, DCS, etc. As a Master, the PD6080/6081
interfaces up to sixteen slave devices and can alternately display their Process Variables. As a Snooper it
can be connected anywhere in the RS-485 bus to read any of the variables being requested by the
Master device.
Four math channels (C1-C4) are available to perform operations on any PV or math channel, with adder
and factor constants, and display the results. Engineering units or tags may be displayed with all PVs or
math channels. Another level of Math functions can be performed on the resultant math channel Math2.
For example, the operator can use the Math2 Channel to calculate the Sum of all other Math Channels,
which may have each performed a different Math function.
The dual-line display can be customized by the user. Typically the upper display is used to display the
PV, while the lower display is used to display the tag for each PV.
Additionally the scanner can be set up to display any input or math channel on the upper display and
alternate between tag & units on the lower display. The relays and analog output can be programmed to
operate based on any PV or math channel.
The scanner is capable of accepting two analog input channels (A and B) of either current (0-20 mA,
4-20 mA) or voltage signals (0-5 V, 1-5 V, 0-10 V, ± 10 V) and displaying these signals in engineering
units from -99999 to 999999 (e.g. a 4-20 mA signal could be displayed as -50.000 to 50.000). The analog
input channels must be mapped to PVs using the IDs 256-259.
Front Panel Buttons Operation
Button Symbol Description
Press to enter, exit Programming Mode, or exit max/min readings
Press to move to the previous PV or math channel
Press to move to the next PV or math channel
Press once to pause scanning, press again to resume scanning
Function Keys Operation
During operation, the programmable function keys operate according to the way they have been
programmed in the Advanced Features – User menu.
The table above shows the factory default settings for F1, F2, and F3.
F4 Operation
A digital input, F4, is standard on the scanner. This digital input is programmed identically to function keys
F1, F2, and F3. The input is triggered with a contact closure to COM, or with an active low signal. During
operation, F4 operates according to the way is has been programmed in the Advanced Features – User
menu. See page 91 for details.
Maximum/Minimum Readings
The max & min readings (peak & valley) reached by the PVs or math channels can be displayed by
assigning the display to max/min through the Display Setup menu.
A digital input should be programmed to reset the max & min readings.
99
Page 100
PD6080/PD6081 Super Snooper Modbus Scanner Instruction Manual
Factory Defaults & User Settings
The following table shows the factory setting for most of the programmable parameters on the scanner.
Next to the factory setting, the user may record the new setting for the particular application.