JOWA PD6088 User manual

Instruction Manual
Model PD6088
Modbus Digital Display
M398
January 3, 2019
JOWA USA, Inc.
59 Porter Road
Littleton, MA 01460-1431 USA
Tel: [phone]
Fax: [phone]

PROVUPD6088/PD6089 Modbus®Scanner
Instruction Manual
Modbus Scanner
•Modbus®RTU Master, Slave, or Snooper Mode
•Poll and Display up to 16 Process Variables
•Displays in Decimal or Feet & Inches Format
•Large 6-Digit Dual-Line Display, Red LEDs, Sunlight Readable
•32-Point, Square Root, or Exponential Linearization
•Addition, Difference, Average, Multiplication, Division, Min,
Max, Weighted Average, Ratio, Concentration, & More
•Type 4X, NEMA 4X, IP65 Front
•Input Power 85
-
265 VAC
•2 or 4 Relays + 4-20 mA Output Options
•Multi-Pump Alternation Control
•Free USB Programming Software & Cable*
* Meter powered over USB for configuration only. Scanner will not read values from
connected device while powered via USB connection.

PROVUPD6088/PD6089 Modbus® Scanner Meter Instruction Manual
2
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.
CAUTION
Read complete instructions prior to installation
and operation of the scanner.
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. Modbus®is a
Registered Trademark of Schneider Automation Inc. All other trademarks mentioned in
this document are the property of their respective owners.
© 2017 Precision Digital Corporation. All rights reserved.
!

PROVUPD6080/PD6081 Modbus®Scanner Instruction Manual
3
Table of Contents
Table of Contents-----------------------------------------3
Table of Figures-------------------------------------------4
Introduction-------------------------------------------------5
Ordering Information ------------------------------------6
Specifications----------------------------------------------7
Operating Modes---------------------------------------7
Master & Snooper Settings-------------------------7
PV Settings ----------------------------------------------7
Display Settings----------------------------------------7
Math Functions-----------------------------------------8
Serial Communications------------------------------8
General----------------------------------------------------8
Relays -----------------------------------------------------9
Isolated 4-20 mA Transmitter Output -----------9
MeterView Pro ------------------------------------------9
Compliance Information------------------------------ 10
Safety---------------------------------------------------- 10
Electromagnetic Compatibility------------------ 10
Safety Information-------------------------------------- 11
Installation ------------------------------------------------ 11
Unpacking---------------------------------------------- 11
Panel Mounting--------------------------------------- 11
Mounting Dimensions----------------------------- 12
Connections------------------------------------------- 13
Connectors Labeling ------------------------------ 13
Power Connections-------------------------------- 13
Serial Communications Connection----------- 14
Serial Communications Connections Table - 15
F4 Digital Input Connections -------------------- 15
Relay Connections--------------------------------- 16
Switching Inductive Loads ----------------------- 16
4-20 mA Output Connections ------------------- 17
Analog Output Transmitter Power Supply---- 17
External Relay, Analog Output, & Digital I/O
Connections----------------------------------------- 17
Interlock Relay Feature--------------------------- 17
Setup and Programming------------------------------ 18
Overview------------------------------------------------ 18
Front Panel Buttons and Status LED
Indicators----------------------------------------------- 18
Display Functions & Messages ----------------- 19
ScanView Software---------------------------------- 22
ScanView Installation ----------------------------- 22
Menu Navigation Tip-------------------------------- 23
Setting Numeric Values---------------------------- 23
Main Menu --------------------------------------------- 23
Serial Communications (serial) --------------- 24
Scanner Mode Selection -------------------------- 25
Operating Modes (nmode)-------------------------- 25
How to Enable Process Variables (PVs) ----- 25
Master Mode (nmastr)---------------------------- 26
Snooper Mode (Snoopr) ------------------------- 27
How to Select 5 or 6-Digit Registers----------- 28
Slave Mode (Slave) -------------------------------28
Setting Up the Scanner (setup) -----------------29
Setting Up the Process Variables (PVs) (pv
setup)-------------------------------------------------30
Setting the Display Decimal Point (disp.dp)-30
Setting the Float Decimal Point (Flot..dp)----30
Scaling the PV Display Values (sCale)-------31
Scale Menu ------------------------------------------31
Setting Up the Displays (dsplay setup) -----32
Line 1 Parameters (Line 1 dsplay)----------32
Line 2 Parameters (Line 2 dsplay)----------32
Display Intensity (d-IntY)------------------------32
Display Line 1 Menu (Line 1 dsplay)-------33
Display Line 2 Menu (Line 2 dsplay)-------34
Setting the Tags (tAg) & Units (units)-------35
Application Example 1 ----------------------------35
Application Example 2 ----------------------------38
Setting the Relay Operation (relay) -----------39
Relay Setup Menu (relay setup)-------------39
Setting the Relay Action (act 1) ---------------40
Programming Set (set) & Reset (rst) Points
----------------------------------------------------------40
Setting Fail-Safe Operation (failsf) ---------40
Programming Time Delay (delay) -------------40
Relay Action for Communications Break
(break)------------------------------------------------41
Relay and Alarm Operation Diagrams---------41
High Alarm Operation (Set > Reset)-----------41
Low Alarm Operation (Set < Reset)------------41
High Alarm with Fail-Safe Operation (Set >
Reset) -------------------------------------------------42
Low Alarm with Fail-Safe Operation (Set <
Reset) -------------------------------------------------42
Pump Alternation Control Operation-----------42
Relay Sampling Operation -----------------------43
Relay Operation After Communications Break
----------------------------------------------------------43
Time Delay Operation-----------------------------44
Relay Operation Details----------------------------45
Overview----------------------------------------------45
Relays Auto Initialization--------------------------45
Fail-Safe Operation (failsf) -------------------45
Front Panel LEDs ----------------------------------45
Latching and Non-Latching Relay Operation 46
Non-Latching Relay (Auto) ----------------------46
Non-Latching Relay (A-man)------------------46
Latching Relay (LatcH) ---------------------------46
Latching Relay (Lt-Clr)--------------------------46
Acknowledging Relays----------------------------47
Pump Alternation Control Applications
(Altern)----------------------------------------------47
Setting Up the Interlock Relay (Force On)
Feature------------------------------------------------48
Scaling the 4-20 mA Analog Output (Aout)--49
Setting Up the Password (pass)-----------------49
Protecting or Locking the Scanner-------------50

PROVUPD6088/PD6089 Modbus® Scanner Meter Instruction Manual
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Making Changes to a Password Protected
Scanner----------------------------------------------- 50
Disabling Password Protection ----------------- 50
Advanced Features Menu------------------------- 51
Advanced Menu Navigation Tips:-------------- 51
Advanced Features Menu & Display Messages
---------------------------------------------------------- 52
Scan Function (SCan) ----------------------------- 54
Control Menu (Contrl) --------------------------- 54
Noise Filter (filter)------------------------------ 55
Noise Filter Bypass (bypass) ------------------- 55
Rounding Feature (round)----------------------- 55
Select Menu (SELect) ---------------------------- 55
Analog Output Source Programming (aoutpr)
---------------------------------------------------------- 64
User Menu (user)---------------------------------- 65
Digital Input Menu (dI 1)-------------------------66
Digital Output Menu (dO 1) ----------------------66
Reset Function (reset) ----------------------------66
4-20 mA Output Calibration----------------------67
Troubleshooting-----------------------------------------68
Diagnostics Menu (diag) --------------------------69
Determining Software Version ------------------69
Reset Scanner to Factory Defaults ------------69
Testing the Display LEDs-------------------------69
Scanner Operation--------------------------------------70
Front Panel Buttons Operation------------------70
Function Keys Operation--------------------------70
F4 Operation-------------------------------------------70
Maximum/Minimum Readings -------------------70
Factory Defaults & User Settings---------------71
Table of Figures
Figure 1. 1/8 DIN Panel Cutout Dimensions &
Panel Mounting Details ------------------------- 11
Figure 2. Scanner Dimensions - Side View----- 12
Figure 3. Scanner Dimensions - Top View------ 12
Figure 4. Connector Labeling for Fully Loaded
PD6088/6089---------------------------------------- 13
Figure 5. Power Connections----------------------- 13
Figure 6. Serial Communications Connections14
Figure 7. Three-Wire RS485 Connection -------- 15
Figure 8. F4 Digital Input Connections----------- 15
Figure 9. Relay Connections ------------------------16
Figure 10. AC and DC Loads Protection---------16
Figure 11. Low Voltage DC Loads Protection--16
Figure 12. 4-20 mA Output Connections --------17
Figure 13. Interlock Connections ------------------17
Figure 14. Acknowledge Relays with F4
Function Key----------------------------------------47
Figure 15. Acknowledge Relays with Digital
Input---------------------------------------------------47

PROVUPD6080/PD6081 Modbus®Scanner Instruction Manual
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Introduction
The PROVU®PD6088/6089 Super Snooper Modbus®Scanner is a multi-purpose, easy-to-use digital
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. Its superluminous LED digits make it easily readable in smoke, dust, fog, and, with the included
SunBright® display, even direct sunlight. The PD6088 displays in decimal format, while the PD6089
displays in Feet & Inches.
As a master, the PD6088/6089 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 PD6088/6089 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 PD6088/6089s in Snooper mode to read any of the variables
being polled by the master. As a snooper, the PD6088/6089 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 PD6088/6089 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.
Various math functions may be applied to the Modbus 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.

PROVUPD6088/PD6089 Modbus® Scanner Meter Instruction Manual
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Ordering Information
SunBright Display Models
PROVU's SunBright display models have an extraordinarily bright LED display. They are perfect for
applications where the scanner is in direct sunlight or in applications where visibility may be impaired by
smoke, fog, dust, or distance.
Standard Display Models
85-265 VAC Power Model
Options Installed
PD6088-6H0
No options
PD6088-6H2
2 relays (PD1102*)
PD6088-6H3
4-
20 mA output (PD1103*)
PD6088-6H4
4 relays (PD1104*)
PD6088-6H5
2 relays & 4
-
20 mA output (PD1105*)
PD6088-6H7
4 relays & 4
-
20 mA output (PD1107*)
Feet & Inches Display Models
85-265 VAC Power Model
Options Installed
PD6089-6H0
No options
PD6089-6H2
2 relays (PD1102*)
PD6089-6H3
4-
20 mA output (PD1103*)
PD6089-6H4
4 relays (PD1104*)
PD6089-6H5
2
relays & 4
-
20 mA output (PD1105*)
PD6089-6H7
4 relays & 4
-
20 mA output (PD1107*)
*Model number for replacement option card.

PROVUPD6080/PD6081 Modbus®Scanner Instruction Manual
7
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
Processes data sent to it from a Modbus
RTU master device.
Note: The relays and the 4-20 mA outputs
are functional in all modes.
Master & Snooper Settings
PV Number
PV1–PV16 Enable or disable the process
variables to be polled by the Master.
Slave Id
Assign the slave ID or address (1-247)
containing the process variables to be
displayed by the selected PV.
Function Code
Select whichModbusfunctioncode(03,04,or
65)touseinreadingtheslavedevice.
Register
Number
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).
Data Type
Select the data format that the slave device
uses. Select between Short integer (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).
Poll Time
1.0 to 99.9 sec. Time between read-
commands (Master mode).
Slave
Response
Timeout
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.
Communication
Break
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.
PV Settings
Tag & Units
6-character, independent tag and units for
each PV and math channel
PV Format
PD6088 default: Decimal format
PD6089 default: FT & IN, 1/8th or 1/16th;
decimal format may be selected for line 2
indication.
Display Decimal
Point
Up to five decimal places or none: d.ddddd,
dd.dddd, ddd.ddd, dddd.dd, ddddd.d, or
dddddd
Float
Decimal Point
Select the number of decimals to use for
the floating point data expected from the
slaveormasterdevice(thisisindependentfrom
thedisplaydecimalpointselection).
PV & Math
Scaling
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-1/16th scale input
2 to display 83 Ft –4 In –0/16th.
Display Settings
Scan Mode
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.
Display
Scan Rate
Master/Snooper: 1 PV/second to one PV
every 99.9 seconds
Slave: Dependent on master device (e.g.
PLC)
Note: The display scan rate is independent
of the poll time.
Display
Assignment
Display line 1 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.
Line 2 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 line 1 and 2 at the same time.

PROVUPD6088/PD6089 Modbus® Scanner Meter Instruction Manual
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Math Functions
Name
Math Operation (Examples)
(P = Adder, F = Factor)
Setting
Addition
(PV1+PV2+P)*F
Sunm
Difference
(PV1-PV2+P)*F
diF
Absolute
difference
((Abs(PV1- PV2)+P)*F
diFAbS
Average
(((PV1+PV2)/2)+P)*F
AvG
Multiplication
((PV1*PV2)+P)*F
Nmulti
Division
((PV1/PV2)+P)*F
divide
Max PV
Max value of all selected PVs
Hi-pv
Min PV
Min value of all selected PVs
Lo-pv
Draw
((PV1/PV2)-1)*F
drAuw
Weighted
average
((PV2-PV1)*F)+PV1
uwavg
Ratio
(PV1/PV2)*F
Ratio
Concentration
(PV1/(PV1+PV2))*F
Concen
Math 2
Math on other math channels
Nmath2
Programmable
Constants
Constant P (Adder): -99.999 to 999.999,
default: 0.000
Constant F (Factor): 0.001 to 999.999,
default: 1.000
Serial Communications
Scanner Id
1 –247 (Scanner Modbus address)
Baud Rate
300 –19,200 bps
Transmit
Time Delay
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.
Data
8 bits (1 start bit, 1 or 2 stop bits)
Parity
Even, Odd, or None with 1 or 2 stop bits
Byte-To-Byte
Timeout
0.01 –2.54 second
Turn Around
Delay
Less than 2 ms (fixed)
Note: Refer to the PROVU®Scanner Modbus Register Tables
located at www.predig.com.
General
Input/output
Modbus RTU over RS-485
Display
Line 1: 0.60" (15 mm) high, red LEDs
Line 2: 0.46" (12 mm) high, red LEDs
6 digits each (-99999 to 999999), with lead
zero blanking
Display
Intensity
Eight user selectable intensity levels
Overrange
Values greater than 999999 cause the
display to flash 999999
Underrange
Values less than -99999 cause the display
to flash -99999
Programming
Methods
Four front panel buttons, digital inputs, PC
and ScanView software, Modbus registers, or
cloning using Copy function.
Max/Min
Display
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.
Password
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.
F4 Digital Input
Contacts
50k ohm pull-up to 3.3 VDC.
Connect normally open contacts across F4
to COM.
F4 Digital Input
Logic Levels
Logic High: 3 to 5 VDC
Logic Low: 0 to 1.25 VDC
Non-Volatile
Memory
All programmed settings are stored in non-
volatile memory for a minimum of ten
years, with or without power.
Power
Options
85-265 VAC 50/60 Hz, 90-265 VDC, 20 W
max or 12-24 VDC 10%, 15 W max
Powered over USB for configuration only.
Fuse
Required external fuse: UL Recognized, 5
A max, slow blow; up to 6 scanners may
share one 5 A fuse
Isolation
4 kV input/output-to-power line. 500 V
input-to-output or output-to-P+ supply
Overvoltage
Category
Installation Overvoltage Category II: Local
level with smaller transient overvoltages
than Installation Overvoltage Category III.
Environmental
Operating temperature range: -40 to 65°C
Storage temperature range: -40 to 85°C
Relative humidity: 0 to 90% non-
condensing
Connections
Removable screw terminal blocks accept
12 to 22 AWG wire, RJ45 for external
relays, digital I/O, and serial
communication adapters.
Enclosure
1/8 DIN, high impact plastic, UL 94V-0,
color: black
Mounting
1/8 DIN panel cutout required: 3.622” x
1.772” (92 mm x 45 mm)
Two panel mounting bracket assemblies
are provided.
Tightening
Torque
Screw terminal connectors: 5 lb-in (0.56
Nm)
Overall
Dimensions
2.45" x 4.68" x 4.19" (62 mm x 119 mm x
106 mm) (H x W x D)
Weight
9.5 oz (269 g)
Warranty
3 years parts and labor