Define Instruments ZEN–LOG-HV-RS, ZEN–LOG-HV-EMOD, ZEN–LOG-MV-RS, ZEN–LOG-MV-EMOD User Manual

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› 16 Isolated Inputs

T/C, RTD, mA, mV, V, Potentiometer and more

› Data logging up to 1GB

With removable SD card

› Modbus option

For easy integration with SCADAs and PLCs

› Fully featured

2 Relay outputs, 2 Analog outputs, 4 Digital inputs, HMI connection, RS232, RS485, RS422, Ethernet

› Easy USB programming

and data log retrieval via your PC

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Zen Datalogger

Data Logging Control Station

General Description

The Zen Datalogger is a stand-alone data logging device. It has logging for up to 30 separate channels, including 16 on-board universal inputs.

Among the most exible data loggers on the market, the Zen Datalogger is ideal for connecting to a mixture of analog and digital sensors. The inputs are all individually isolated and EMC hardened, making it t for the most demanding industrial environments.

Data is logged to a 1GB Micro SD card, for easy data retrieval and transport.

Our free WorkBench soware enables easy conguration of the unit, as well as download and display of logged data. Each unit can be viewed by 8 simultaneous users over the LAN.

The Zen Datalogger supports a range of interface options including RS232, RS485, RS422 and Ethernet, for simple integration

with PLCs and SCADA systems.

It can be set up as an analog multiplexer, utilizing the onboard dual analog outputs, or as an alarm and control station, using the 16 inbuilt setpoints. These setpoints can trigger up to 16 relay contacts if connected to the optional ZEN-RIO (sold separately).

The setpoints can also trigger SMS and email alarms if the unit is connected to an external cellular modem and loaded with the modem plugin (found in WorkBench).

CONTENTS

Contents ................................................. 2

Order Codes ............................................ 3

Safety Notices ......................................... 3

1 - Specications .................................... 4

2 - Dimensions & Installation ................ 6

2.1 - Case dimensions ........................ 6

2.2 - Installation environment ........... 6

2.3 - Installation instructions ............ 7

2.4 - EMC installation guidelines ....... 8

3 - Installing Dene WorkBench ........... 9

4 - Soware Conguration .................. 11

4.1 - Connecting ............................... 11

4.2 - WorkBench interface

overview .................................. 12

4.3 - Main navigation ...................... 13

5 - Data Logging .................................. 14

5.1 - Data logging capacity ............. 14

5.2 - Data logging setup ................. 14

5.3 - Indicators ................................ 15

5.4 - Using the Data Viewer ............ 15

5.5 - Importing logged data from the

Micro SD card .......................... 17

6 - Wiring & LED's ................................ 18

6.1 - Zen Datalogger terminals ....... 18

6.2 - LED indicators ......................... 20

6.3 - Analog output ........................ 20

6.4 - Relay output ............................ 21

6.5 - Digital inputs ........................... 21

6.6 - Port 1 ....................................... 23

6.7 - Port 2 ....................................... 23

7 - Input Wiring & Specications ........ 24

7.1 - Current input .......................... 24

7.2 - Voltage input .......................... 26

7.3 - RTD input ................................ 28

7.4 - Thermocouple input ............... 29

7.5 - Digital pulse ............................ 30

7.6 - Potentiometer input ............... 31

7.7 - AC current sensor .................... 32

7.8 - Attenuator .............................. 32

8 - Connecting To A PLC ...................... 33

8.1 - Connecting to a PLC as an

intelligent multiplexer ............. 33

8.2 - Zen registers ............................ 36

9 - Maintenance ................................... 37

9.1 - Calibration ............................... 37

9.2 - Troubleshooting ...................... 37

A - Appendix A - EMC Test Results ...... 38

B - Appendix B - Optional FM1602

Display ............................................ 39

ORDER CODES

ZEN–LOG – –

Zen Datalogger Supply Voltage

Supply Voltage HV

Port 1 Comm RS

EMOD

SAFETY NOTICES

For your safety and the prevention of damage to the Zen unit and other equipment connected to it, please read complete instructions prior to installation and op-

eration of the Zen and carefully observe all safety regulations and instructions. Consult this manual carefully in all cases where hazard symbols are marked on your Zen unit.

Use of this instrument in a manner not specied by the manufacturer may compromise the protection provided by the instrument. This instrument should not be used to directly drive valves, motors, or other actuators, unless equipped with appropriate safeguards.

It is the responsibility of the user to identify potential hazards that may arise in the event of a fault to unit, and implement safeguards for the prevention of harm to persons or equipment. The safety of any system incorporating this unit is the responsibility of the assembler of the system.

Port 1 Comm

85–265V AC / 95–370V DC 24–48V AC / 17–72V DC

RS422/485 Ethernet Modbus

Symbol denitions

CAUTION

Risk of electric shock

Please refer to user manual.

CAUTION

Risk of danger

Please refer to user manual.

Both direct and alternating current.

Equipment protected throughout by DOUBLE INSULATION or REINFORCED INSULATION.

SPECIFICATIONS

Power

Power supply

HV = 85–265V AC / 95–370V DC, OR MV = 24–48V AC / 17–72V DC

Supply frequency 50/60Hz, 10VA

Mains isolation 250V AC

Mains isolation test voltage to all inputs and outputs 3000V AC 50Hz for 1min

Analog input

16 x Universal isolated analog inputs

See Section 7 for specications and wiring

Input isolation 2,500V AC 1 minute between all input channels

Isolation test voltage 1000V DC for 1min (Analog input to digital output, Analog input to analog input)

Noise immunity (CMRR) 160dB tested at 300V RMS 50Hz

Permanent memory (E writes per input parameter

ROM) 100,000

Analog output

2x Isolated analog outputs 4–20mA

Resolution 15 bits, 16,000 steps

Compliance voltage 10V 500Ω

Isolation test voltage 1000V DC for 1min

(Analog output to digital output)

Relay output

2x Isolated relay outputs

LED indication of each output

Relay contact rating 5A 30V DC

Input resolution 16 bits

Accurate to <±0.1% FSO (unless otherwise

stated in Section 7)

General specications

HMI interface For FM1602 remote display (sold separately)

Expansion interface Add 16 relay outputs and 16 digital control inputs with a ZEN-RIO Relay/IO Expansion (sold separately)

Linearity & repeatability <±0.1% FSO

Channel separation 125db minimum

RF immunity <±1% eect FSO typical

Digital input

4 x Opto isolated inputs with LED indication of each input

Functions Status, up counter, up/down counter with direction, debounced counter, frequency, gated frequency

Counter register output 32 bit

Frequency range 0–10,000Hz

Input voltage 5–30V DC

Threshold 4.6V typical

Debounce counter range 0–100Hz

Load At 5V DC: 1.1mA; At 24V DC: 7mA

Isolation test voltage 1000V DC for 1min

(Digital input to analog input/output, Digital input to digital output)

Comms

Protocols Modbus RTU, RS422, RS485 or RS232

Port 1 Select either: RS = RS422 / RS485, OR EMOD = Ethernet Modbus (10/100/Auto)

Port 2 RS232 / RS485 auto-select Selectable baud rate 2400–230000 baud Format 8 bit, no parity, 1 stop

Isolation test voltage 1000V DC for 1min (Comms to analog input/output, Comms to digital input/output)

Programming

USB programmable Via USB prog port using Bridge Key USB programmer (sold separately)

Onboard memory capacity

32MB (31,774 samples for all channels)

Used when Micro SD card is removed

Fast, simple data log retrieval and visualization, using Dene WorkBench

Free download with product simulator at:

deneinstruments.com/workbench

Construction

Casing DIN 35 rail mounting; Material: ABS inammability V0 (UL94)

Dimensions (H x W x D, with plugs in)

2.32 x 10.04 x 5.67" (59 x 255 x 144mm)

Unit weight ZEN-LOG-RS = 27.2oz (770g) ZEN-LOG-EMOD = 27.7oz (784g)

Environmental conditions

Operating temp 14 to 140°F (–10 to 60°C)

Storage temp –4 to 176°F (–20 to 80°C)

Operating humidity 5–85% RH max,

non-condensing

Dene WorkBench Simple conguration and data log retrieval using Dene WorkBench. Free download at:

deneinstruments.com/workbench

Datalogging

Real-time clock

Data logging to Micro SD card (supplied).

Logging to onboard memory when Micro SD card removed

Micro SD card capacity

1GB (7,858,683 samples for all channels)

Not compatible with higher-capacity Micro SD cards.

Compliances

EN-61326-1:2006

EMC Emissions EN 558022-A;

Immunity EN 50082-1; Safety EN 60950

Intelligent multiplexer

Channel selection Binary (digital inputs)

Cycle time 4sec minimum to cycle through

all 16 inputs

Resolution 12 bits, 4000 steps typical

Programming PortDIN Rail

DIMENSIONS & INSTALLATION

2.1 - Case dimensions

0.18"

(4.5mm)

4.55"

(115.5

mm)

Micro SD Port

5.69" (144.4mm)

9.69" (246mm)

10.04" (255mm)

2.52" (64 mm)

2.35" (59.8mm)

2.2 - Installation environment

The Zen should be installed in a location that does not exceed the maximum operating temperature, and at a safe distance from other devices that generate excessive heat. The installation environment should provide good air circulation to the unit.

The plastic casing and product label may be cleaned, if required, using a so, damp cloth and neutral soap product. Caution should

be exercised when cleaning the unit to avoid water dripping inside, as this will damage the internal circuits.

2.3 - Installation instructions

The Zen Datalogger is rated IP20, and should be mounted in an enclosure to protect the unit from weather conditions and dust.

A - Installation in Enclosure (Fig 1)

Prepare an Enclosure (not supplied) as illustrated by mounting a DIN 35 rail, cable glands, and any other required components.

If using a metal enclosure, the enclosure must be earthed.

B - DIN Rail Mounting (Fig 2)

To clip the unit onto the DIN rail: (1) Hook the lower part of the unit onto the rail, and then (2) Press down towards the rail until the red hooks click into place

Leave at least 2" (5cm) clear above and below the unit, to allow room for airow and wiring.

Fig 1

C - Wiring

Refer to Sections 6–7 in this manual.

D - Removal from DIN Rail (Fig 3)

To remove the unit from the DIN rail: (1) Power down the unit (2) Unplug the 'Input 4' and 'Port 1' connectors from the top of the Zen (the DIN clips are behind these terminals) (3) Gently pull the unit away from the rail while levering one of the clips upward with a screwdriver (4) When one side is loosened, hold it slightly away from the rail to prevent the clip from engaging again (pictured in Fig 3). Meanwhile, lever the second clip upward as you did with the rst.

Fig 2

Fig 3

2.4 - EMC installation guidelines

The Zen has been designed to cope with large EMC disturbances. This has been

achieved by continual testing and improvement of ltering and layout techniques over many years.

The Zen meets CE noise requirements, and even surpasses them in many tests. (For full details and test results, see Appendix A.) However in some applications with less than optimum installations and large power switching, the EMC performance of the Zen can be further improved, by:

A Installing the unit in an earthed Metal

Enclosure. This is particularly useful

if the control box is mounted close to large power switching devices like contactors. Every switching cycle there is a possibility of generating a large amount of near eld radiated noise. The Metal Enclosure, acting as a faraday cage, will shunt this radiation to ground and away from the Zen.

B Increasing the physical distance from

the power devices. For example, increasing the control box distance from 6" to 12" from the noise source will reduce the noise seen by the control box by a factor of 4. (Probably the cheapest and best results in this situation could be obtained by adding RC snubbers to the contactors or power switches.)

C Using shielded cable on sensitive input

and control signal lines. Good results can be obtained by grounding the shields to the metal enclosure close to the entry point. All cables act as aerials and pick up unwanted R.F. radiated signals and noise; the earthed shield acts as a faraday cage around the cables, shunting the unwanted energy to ground.

Shields can also help with capacitively coupled noise typically found in circumstances when signal cable is laid on top of noisy switching power cables. Of course in this case you are better o to keep separate signal and power lines.

D Laying cable on earthed cable trays

can also help reduce noise seen by the Zen. This is particularly useful if there are long cable runs, or the unit is close to radiating sources such as two way radios.

E The relay outputs of the Zen have built

in MOV's to help reduce EMI when switching inductive loads. EMI can further be reduced at the load by adding snubbers for AC signals or a yback diode for DC coils.

Dene WorkBench oers a comprehensive and yet simple-to-use setup tool for your Zen unit, complete with data log extraction and visualization.

You must install WorkBench before connecting the Zen Datalogger to your computer. If you have already connected using the Bridge Key, please disconnect before continuing.

A Download the latest version of WorkBench from

www.deneinstruments.com/workbench

B Extract the install le from the zip folder. Right-click on the zip folder and choose

'Extract All', (or extract the le using another extraction utility of your choice).

INSTALLING DEFINE WORKBENCH

C Double-click on the extracted .msi

install le. This will launch the WorkBench installer.

Depending on your security settings, a 'Security Warning' dialog may appear. If you see the security message, click 'Run'.

D The WorkBench setup

wizard will launch.

Click 'Next' to get started.

E The wizard will also ask for

conrmation that you wish to begin the installation.

Click 'Next' to continue.

F The wizard will then prompt

you to select an installation folder.

You may accept the default installation folder, or select an alternative location by clicking 'Browse'.

Click 'Next' to continue.

G Depending on your security

settings, the 'User Account Control' dialog may appear.

If it does, simply click 'Yes ' to allow the program to be installed on your computer.

H The install wizard will now install Dene WorkBench. Please wait. This process usually

takes 2–3 minutes, but may take longer in some situations.

I When the installation has

successfully completed, the following dialog will appear.

Click 'Close' to exit.

The installer will place an icon on your desktop for easy access to WorkBench.

PC Connection

INSTALL SOFTWARE FIRST!

SOFTWARE CONFIGURATION

4.1 - Connecting

Connect the Bridge Key

To program your Zen Datalogger, connect one end of the Interface Cable to the programming port on the le side of the Zen (see Fig 4), and the other end to your Bridge Key.

Then plug the Bridge Key into your computer's USB port (see Fig 5).

Supply Power

Supply power to the Zen Datalogger, referring to 6.1 for wiring.

Bridge Key

Interface Cable

Zen Datalogger

Connect to your Zen in Dene WorkBench

Launch Dene WorkBench (see Section 3 for installation instructions), and select the 'Prog Port' tab. If your Zen is powered up and connected via the Bridge Key, then the COM Port will be detected automatically. Click 'Connect'.

Fig 4

Power Supply

Fig 5

4.2 - WorkBench interface overview

Main Navigation, including channel sub-navigation. See 4.3 for more information.

Control Area

Main control area for conguring your system. Any changes made in this area will bring up the Apply Button (see below)

Connection Panel

Disconnect button Connection status

Apply Button

Appears if you have made any changes in the Control Area. WorkBench will not allow you to browse to a new tab in the Main Navigation with unapplied changes to your conguration.

Help Panel

Wiring diagrams, explanations and helpful tips will automatically appear in this panel as you congure the Zen.

4.3 - Main navigation

Overview

View basic device information including Serial Number and rmware version. Password Protect your device, export a conguration certicate and save/upload a conguration le.

Ports

This tab is only visible if you are connected to your Zen via the USB Programming Port. It enables you to congure a range of settings for Port 1 and Port 2 (baud rate, parity, Tx delay etc.).

Once your ports are set up, you will be able to congure to your Zen in WorkBench via Port 1 or Port 2 instead of the USB programming port - perfect for adjusting settings once your unit is installed.

Inputs

Set up and scale the 16 isolated input channels. Includes integrated wiring diagrams and examples.

Digital Inputs

Set up the four digital inputs and view their live status.

Totalizers

Congure up to 10 totalizers using either an input channel or a digital input as the source.

Setpoints

Congure up to 16 setpoints which can be activated by an input, a digital input or a totalizer. Congure alarms or control functions by selecting from a variety of pre-programmed modes, complete with detailed explanations.

Relays

Congure the two relay outputs. These may be driven from one or more setpoints, or directly from one of the digital input pins.

Logging

Congure your data logging options. Select the logging interval, set the time, and select which channels will be logged. (See Section 5 for more on Data Logging.)

Data Viewer

View and analyze your live data and download it to your computer. (See Section 5 for more on Data Logging.)

Plugins

Plugins are small programs which are loaded into the Zen to expand its functionality or simplify its use. Plugins are optional and in many cases they may not be needed. Note that only one plugin can be installed on your Zen at a time.

Retransmission

Congure up the two analog outputs to operate independently, or in cooperation with the digital inputs as an intelligent multiplexer.

DATA LOGGING

5.1 - Data logging capacity

The Zen Datalogger is supplied with a 1GB Micro SD card, which is the default storage location for logged data. The Micro SD card can hold up to 7.8 million data samples - enough for nearly 15 years' data logging at 1 sample per minute.

If you remove the Micro SD card to download data from it (see 5.5), the Zen will continue to log data to its onboard memory. The onboard memory capacity is 32MB (31,744 data samples) - enough for 22 days' data logging at 1 sample per minute.

Logged data which has been temporarily saved to the onboard memory will be automatically transferred to the Micro SD card as soon as it is inserted again. (This process can take some time, depending on how much data needs to be transferred. You will not be able to safely remove the Micro SD card again [as in 5.5] until the transfer has completed.)

NOTE Please use the supplied 1GB Micro SD card. Commercially available Micro SD cards

with a capacity higher than 1GB are not supported by the Zen Datalogger.

5.2 - Data logging setup

To set your Data Logging preferences, connect to your Zen using Dene WorkBench (see Section 4), and click on the "Logging" tab.

From there you can:

› Specify what to do when the data

logging capacity is reached (either overwrite old data, or stop logging)

› Set your logging interval in hours,

minutes and seconds

› Delete your Data Log › Set the clock › Select which channels to log (up to 30

channels, which may include a mixture of Inputs, Digital Inputs, Totalizers and Auxiliary inputs)

5.3 - Indicators

The Zen Datalogger has 3 LED indicators which provide information on the status of the data log.

A INTERNAL / SD CARD

These LED's indicate which memory location is currently being used to store logged data:

› If the 'SD CARD', LED is lit, then data is being

saved to the Micro SD card.

› If the 'INTERNAL' LED is lit, the data is being

saved to the onboard memory.

B PRESS BEFORE REMOVING SD

This button must be pressed BEFORE removing the Micro SD card. (Please see 5.5 for more information on safely removing the Micro SD card.)

C SAFE

If this LED is lit, then it is safe to remove your SD card from the Zen's Micro SD slot.

Fig 6

5.4 - Using the Data Viewer

Dene WorkBench "Data Viewer" enables you to view your logged data and visualize it in the form of a Multi-Channel Graph (Fig 7), Tiled Graphs (Fig 8), a Distribution Graph (Fig 9), or as Tabulated Data (Fig 10).

A variety of settings enable you to specify the range of viewable data, and congure your graph axes and labels. You can also export logged data to CSV format for further processing using Excel.

Fig 7 - Multi-Channel Graph

Fig 8 - Tiled Graphs

Fig 9 - Distribution Graph Fig 10 - Tabulated Data

Downloading logged data

When you connect to your Zen Datalogger in Dene WorkBench and click on the "Data Viewer" tab, you will have immediate access to any data which has previously been downloaded from the Zen unit.

Additionally, the graph will show preview content for any data that has not yet been downloaded (this is built using 100 samples from your actual data). To view the complete data set, you must download the data log.

Downloading the data log has the additional benet of enabling 'oine' viewing, making it possible to view your data in Dene WorkBench without connecting to your Zen. Regularly downloading your data log will also ensure that your data history is maintained, in the unlikely event that the size of your data log exceeds the capacity of the Micro SD Card.

There are two methods for downloading logged data to your PC:

A While connected to your Zen unit, click the "Download NEW

Samples" button.

This button appears in the top right-hand corner of the Data Viewer window, along with the number of samples to be downloaded. If there are only a mod-

erate number of new samples to be downloaded, then this method is ideal.

However please note that this method can take considerable time if there are a large number of samples to be downloaded. In this case it is recommended that you download data from the Micro SD Card, as explained below.

B Without connecting to your Zen unit, safely remove the SD Card (see 5.5) and import

its contents to WorkBench.

This is the recommended method for downloading a large data log, because transfer of data is not impeded by distance, or by the speed of your serial or ethernet connection. This method also enables you to download the data log without being connected to a live unit. Please see 5.5 for further instructions.

5.5 - Importing logged data from the Micro SD card

The Micro SD card can be removed from the Zen unit and read using a stan- dard SD card reader, enabling fast, simple and portable data log retrieval.

To do this, you must rst unmount the Micro SD card by pressing the button marked 'PRESS BEFORE REMOVING SD'.

This disengages the Micro SD card from the data logging process, causing any subsequent data samples to be logged to the unit's onboard memory. (When the Micro SD card is inserted again, any samples that have been logged to the unit's onboard memory will be transferred to the Micro SD card.)

IMPORTANT

Please read and follow these instructions to remove the Micro SD Card from the Zen unit. Incorrect removal of the Micro SD could corrupt your data log.

A Press the button marked 'PRESS BEFORE REMOVING SD' (see 5.3B).

B Wait for the green 'SAFE' LED to come on. When the 'SAFE' light is on, remove the SD

card from the Zen unit. Open the rubber ap marked 'DATA' which is located just above

the Display terminal on the lower le-hand side of the unit. Press the SD card to eject it.

C Insert the SD card into your computer's card reader.

D Launch Dene WorkBench and click on the "Data Viewer" tab. (Note that you do not

need to connect to your Zen Datalogger.)

E The 'Data Source' dialog will pop up automatically. Click "SD Card Import" and then

follow the steps in the images below to import the data from your Micro SD card.

F When you have nished importing the data, return the Micro SD card to the Zen Data-

logger. (You do not need to follow any special process to re-insert the SD card).

Ethernet Modbus

5251506261

N/C

No user serviceable parts. Only to be installed

484746

242322

212019

424140

181716

393837

151413

121110

333231

987

302928

654

272625

321

5857565554

N/C

484746

242322

212019

424140

181716

393837

151413

121110

333231

987

302928

654

272625

321

5857565554

5251506261

N/C

484746

242322

212019

424140

181716

393837

151413

121110

333231

987

302928

654

272625

321

5857565554

WIRING & LED'S

6.1 - Zen Datalogger terminals

Expansion Out

Connection point for ZEN-RIO Relay I/O Expansion.

Programming Port

Programming connection to Dene WorkBench using the Bridge Key.

See Section 4 for more information

Micro SD

Use ‘PRESS BEFORE

REMOVING SD’ button.

Once SAFE light is on:

Open ap to expose slot. Press card to eject.

Max card capacity = 1GB

EXPANSION

OUT

ZEN-LOG-HV-EMOD

4613002 2.1.01

PROG PORT

Li [DATA] ap.

Do not remove

SD card until

SAFE light is on.

Universal Input Channels

See Section 7

FW:SN:

HVMV85−265V AC / 95−370V DC

24−48V AC / 17−72V DCRSEMOD

RS422/RS485

Display

HMI port for optional FM1602 display.

See Appendix B for more information

Universal Input Channels

See Section 7

Port 1 Port 2

5251506261

N/C

484746

242322

212019

424140

18171658575655

N/C

484746

242322

212019

424140

18171658575655

5251506261

N/C

484746

242322

212019

424140

18171658575655

See 6.6 See 6.7

Power Supply

Universal AC/DC

+Ph–

Zen Datalogger

CAUTION! HAZARDOUS

VOLTAGES

No user serviceable parts. Only to be installed

by service personnel. See installation

instructions prior to connecting to supply.

Analog Outputs

See 6.3 See 6.5

00-20-4A-DB-50-49

MAC

Relay Outputs

See 6.4

85–265V AC 95–370V DC

+Ph–

24–48V AC 17–72V DC

Digital Inputs

INTERNAL ON = Using onboard memory for datalog storage

6.2 - LED indicators

The Zen Datalogger has 15 LED indicators on the top label which provide information about the unit's status, as further explained below:

SD CARD ON = Using Micro SD card for datalog storage SAFE ON = Safe to remove Micro SD card

ON = Relay Energised OFF = Relay De-energised

ON = Power is supplied to the unit

FLASHING = Normal operation ON = Error (contact manufacturer)

6.3 - Analog output

The two Analog Outputs (A–B) can be wired as shown (right) and congured and scaled in Dene WorkBench from the 'Retransmis- sion' tab.

The Zen Datalogger can also be congured as an Intelligent Multiplexer from the 'Retransmission' tab (see Section 8) - in this case the Digital Inputs are disabled.

ON = Digital Input Active OFF = Digital Input Inactive

Indicates activity on the

Receive/Transmit lines

COM

4–20mA

or PLC

Indicator

or PLC

Indicator

6.4 - Relay output

The two Relay Outputs (A–B) can be wired as shown (right) and congured in Dene WorkBench from the "Relays" tab. Each Relay Output has LED indication on top of the unit to indicate when the relay is energized.

Both relays are normally open, and share a common. Each can be congured for a ‘Closed’ or ‘Open’ triggered state (e.g. for fail safe operation). These settings are retained in soware on power down, but the relays are de-energized.

Connection example for relay outputs

COM

Power Supply

Note 1 30V AC/DC, 1A maximum contact rating.

COM

Note 2 For individual relay outputs (i.e. not sharing a common) and/or a con-

tact rating of 250V AC, use ZEN-RIO, which can provide 16 Relay Outputs.

Cooling

6.5 - Digital inputs

The Zen Datalogger has four Digital Inputs (A–D), each with LED indication on top of the unit. The digital inputs can be congured and scaled using Dene WorkBench from the "Digital

Inputs" tab, as per the list below:

› Status (active/inactive - can be read by a SCADA

system as a general digital input)

› Counter (up to 10KHz, or 100Hz Debounced) › Frequency (up to 10KHz) › Flow count (up to 10KHz) › Flow rate (up to 10KHz) › RPM (up to 10KHz)

The Zen Datalogger can also be congured as an Intelligent Multiplexer from the 'Retransmission' tab (see Section 8) - in this case the Digital Inputs are disabled.

Please see p22 for more wiring diagrams.

COM

Digital Output

(5–30V DC)

COM

External

+24V

Supply

Reed Switch or

Relay Contact

External

+24V

Supply

Output

3 Wire Proximity

Transducer,

Paddle Wheel etc.

External

+24V

Supply

NOTE The universal analog inputs can also be wired as digital pulse inputs (see 7.5).

Connection example for digital inputs (A–D)

Reed Switch or Relay Contact

3-wire Proximity Transducer, Paddle Wheel etc.

Digital Output

5-30V DC

4.7kΩ

Com

Open

Collector

Output

Open Collector

+24V Supply

Note 1 All cables must be screened, with screen earthed at one end only.

Note 2 Do not t the 4K7 resistor for 3-Wire PNP transducers.

6.6 - Port 1

Port 1 on the Zen Datalogger can be purchased with an auto-detecting RS485/RS422 port (order code '-RS'), or as an Ethernet Modbus terminal (order code '-EMOD'). If you have the auto-detecting RS port, refer to the diagrams below for wiring.

RS485

COM

Tx+

Tx−

RS422

Rx−

Rx+

COM

Tx+

Tx−

NOTE Pins marked 'NC' MUST be le disconnected to ensure correct auto-detection of your comm type.

6.7 - Port 2

Port 2 can be wired for either RS232 or RS485 serial connection, as shown (right).

NOTE Pins marked 'NC' MUST be le disconnected to ensure correct auto-detection of your comm type.

RS232

RS485

COM

Tx+

Tx−

INPUT WIRING & SPECIFICATIONS

CAUTION

Risk of electric shock. Dangerous and lethal voltages may be present on the input termi-

nals. Please take appropriate precautions to ensure safety.

CAUTION

Risk of danger. The sensor input can potentially oat to dangerous and unexpected volt-

ages depending on what external circuit it is connected to. Appropriate considerations must be given to the potential of the sensor input with respect to earth common.

7.1 - Current input

Range 0–20mA, 4–20mA

Input impedance 45Ω

Maximum over-range protected by PTC

to 24V DC

Accuracy 0.1% FSO max

0/4–20mA DC is the most commonly used analog signal in industry, and is universally accepted. As a current loop, it is unaected by voltage drops in cables, and can be transmitted over long distances without signal degradation.

Linearity & repeatability 0.1% FSO max

Channel separation 0.001% max

Ambient dri 0.003%/°C FSO typical

RF immunity 1% eect FSO typical

Output

External

+24V

Current

0/4–20mA

Supply

2 Wire Loop

Powered

Transmitter

4–20mA

Output

External

+24V

Supply

3 Wire

Transmitter

0/4–20mA

+24V Supply

4 Wire

Transmitter

0/4–20mA

Output

External

Fail-Safe Micro Switch

If you are connecting other instruments in a loop with a Zen mA input, a fail-safe has been added to prevent the external loop from being interrupted in the event of a power loss to the Zen.

To activate the fail-safe for an input channel, turn on the micro switch above the input terminal. You will need to remove the input connector to see the switch, and use a small screwdriver to turn it on.

NOTE

The Fail-Safe Micro Switch is only compatible with mA inputs.

For the accurate operation of this instrument, it is critical that the micro switch be set to the OFF position for all other input types.

Connection example for 2, 3 & 4 wire mA output transmitters

+24V Supply

Fail-safe Micro Switch

2-Wire

Transmitter

Output +

Output −

Output +

Output −

Power

Supply

3-Wire

Transmitter

4-Wire

Transmitter

Note 1 All analog inputs are isolated to other channels and all other voltages. They also have built in over voltage protection to 24V, protecting the unit if the 24V supply is inadvertently connected to the unit when congured for mA input.

Note 2 All cables must be screened, with screen earthed at one end only.

B+

Input Channel

B–

B+

Input Channel

B–

B+

Input Channel

B–

Note 3 Do not run input cables in close vicinity to noisy power supplies, contactors or motor cables. The best practice is to run input cables on a separate earthed cable tray. This will minimise RFI eects, of which magnitude cannot be easily predicted.

7.2 - Voltage input

Ranges ±200mV, –200mV to 1V, 0–10V, 0–18V

Input impedance >500KΩ on all ranges

Maximum over-voltage 24V DC

Linearity & repeatability 0.1% FSO max

Channel separation 0.001% max

Ambient dri 0.003%/°C FSO typical

RF immunity 1% eect FSO typical

Accuracy 0.1% FSO max

The Zen Datalogger accepts both voltage and millivolt inputs. Along with the standard 0–10V DC range, a variety of other ranges are provided to suit a various applications. These can all be selected using the WorkBench soware and easily scaled into engineering units.

The ±200mV DC and -200mV to 1V DC ranges are ideal for low signal applications, such as measuring large DC currents using external current shunts, or interfacing to sensors with low voltage output. A 0–18V general purpose voltage range is also provided.

0–10V, ±200mV

–200mV to 1V,

0–18V DC

Output

External

+24V Supply

2 Wire

Transmitter

0–10V DC

Output

External

+24V

Supply

3 Wire

Transmitter

0–10V DC

Output

External

+24V Supply

4 Wire

Transmitter

0–10V DC

Output

Connection Example for Millivolt & Voltage Inputs for 2, 3 & 4 Wire Transmitters

+24V Supply

2-Wire

Transmitter

B+ B–

Input Channel

Output +

Output −

Output +

Output −

Power

Supply

3-Wire

Transmitter

4-Wire

Transmitter

Note 1 Each voltage input must not see more than 18V peak between the negative and the input, otherwise permanent damage may occur.

Note 2 All cables must be screened, with screen earthed at one end only.

B+

Input Channel

B–

B+

Input Channel

B–

3-Wire

Field RTD

3-Wire

Field RTD

3-Wire

Field RTD

7.3 - RTD input

RTD Pt100 3 wire RTD DIN 43760: 1980

RTD Pt1000 3 wire RTD standard

Resolution

-328–572°F (-200–300°C) = 0.02°F (0.01°C)

-328–1472°F (-200–800°C) = 0.1°F (0.1°C)

Lead resistance 10Ω/lead max

Sensor current 0.6mA continuous

Sensor fail upscale

Accuracy

-328–572°F (-200–300°C) = ±0.1°C

-328–1472°F (-200–800°C) = ±0.3°C

Ambient dri 0.003°C/°C typical

recommended

The RTD (standing for Resistance Temperature Device) is highly stable and accurate, and is fast becoming the most popular temperature sensor in industry.Oen referred to as Pt100 and Pt1000, the Pt represents platinum (the dominant metal in its construction), and 100/1000 is the resistance in ohms at 0°C.

Supported RTD types/ranges

Pt100/Pt1000 (0.02°F/0.01°C res) -328 to 572°F (-200 to 300°C)

Pt100/Pt1000 (0.1°F/0.1°C res) -328 to 1472°F (-200 to 800°C)

Note 1 All RTD inputs are isolated from

each other.

Note 2 All RTD cables must be screened, with screen earthed at one end only. All three wires must be the same resistance (i.e. the same type and size).

Note 3 To minimise lead resistance errors, 3-wire RTD’s should be used. Oset errors for 2-wire RTD’s may be compensated for in the soware.

Note 4 Do not run input cables in close vicinity to noisy power supplies, contactors or motor cables. The best practice is to run input cables on a separate earthed cable tray. This will minimise RFI eects, of which magnitude cannot be easily predicted.

Connection Example for 3-Wire RTD Inputs

Input

Channel

Input

Channel

Input

Channel

RTD 3 Wire

Pt100/1000

7.4 - Thermocouple input

T/C

Thermocouple types B, E, J, K, N, R, S or T type (see table below for ranges)

Cold junction compensation 14 to 140°F (–10 to 60°C)

CJC dri <0.02°C/°C typical for all inputs

The thermocouple is one of the most common temperature sensors used in industry. It relies on the Seebeck coecient between dissimilar metals. The thermocouple type is selected with reference to the application temperature range and environment, with J and K type being the most common.

Connection Example for Thermocouple Inputs

B+ B–

Note 1 All thermocouple inputs are isolated from each other. There is no need to buy expensive isolated thermocouples.

Thermocouple

Input Channel

Sensor open Upscale

TC lead resistance 100Ω max

Input impedance >500KΩ

Accuracy 0.1% of FSO ±1°C typical

Supported thermocouple types/ranges

B 32 to 3272°F (0 to 1800°C)

E -328 to 1292°F (-200 to 700°C)

J -328 to 1832°F (-200 to 1000°C)

K -328 to 2300°F (-200 to 1260°C)

N -328 to 2372°F (-200 to 1300°C)

R 32 to 3092°F (0 to 1700°C)

S 32 to 3092°F (0 to 1700°C)

T -328 to 752°F (-200 to 400°C)

Note 2 For accurate thermocouple mea-

surements (especially at low temperatures) the top cover must always be tted. Avoid dras and temperature dierences across terminals. Once installation is complete, close the cabinet door and allow the cabinet to reach equilibrium. This may take several hours. Place all thermocouple probes into a calibrated thermal bath at temperature of interest. Any osets can be zeroed out in the soware.

Note 3 All thermocouples are referenced to a combination of four CJC temperature sensors on the main Zen board. This minimizes errors caused by the mounting orientation of the Zen unit, and temperature dierences in enclosures. However, for high accuracy applications it is still

recommended to zero errors (see Note 2).

Note 4 All cables must be screened, with screen earthed at one end only.

Note 5 When thermocouple inputs are selected, an upscale resistor is automatically connected to the T/C + input, resulting in an overow condition for open or broken sensors.

7.5 - Digital pulse

Frequency range 0–2500.0Hz

Fast counter range 0–2500.0Hz

Sensors Open collector (NPN, PNP), TTL

or Clean Contact

The Zen's 16 universal input terminals accept digital inputs from NPN, PNP or TTL sensors as well as Clean Contacts. Pulses up to 2.5kHz can be counted (except for the debounced counter, which has a range of 0–50Hz).

A variety of operating modes are soware programmable to suit your application.

Frequency resolution 0.1Hz

Debounce counter range 0–50Hz max

Counter register output 32 bit

Accuracy ±0.5%

Soware programmable modes include:

› General counter › General debounced counter (ideal for

mechanical relay contacts which are subject to bouncing)

› General frequency › Flow count (uses K-factor) › Flow rate (uses K-factor) › RPM (uses pulses per revolution)

NPN Open

Collector

Output

PNP Open

Collector

Output

TTL Input

Reed Switch or

Relay Contact

NPN

Collector

Reed Switch

Contact

PNP

Collector

TTL

(0-5V max)

Connection Example for Digital Pulse Inputs

A+

Relay

Input Channel

B–

A+

Open

Input Channel

B–

A+

Open

Input Channel

B–

Input

5V 0

Input Channel

A+

B–

7.6 - Potentiometer input

Potentiometer input 3-wire

Excitation voltage Variable

Potentiometer resistance <2kΩ low pot;

>2kΩ high pot

Field prog zero 0–90% of span

Note 1 All digital inputs are isolated from

each other. Inputs from various sources can be connected without fear of crating unwanted and troublesome ground loops.

Note 2 Soware selectable functions include: frequency to 2kHz, debounced counter for contact closures to 100Hz maximum, fast counter to 20KHz.

Note 3 All cables must be screened, with screen earthed at one end only.

Field prog span 0.1–100%

Linearity and repeatability

<±0.05% FSO typical

Response time 100msec

Temperature dri <50ppm/°C

A 3 wire potentiometer is typically used to measure position. A low or high potentiometer range can be programmed to your unit using the WorkBench soware.

These ranges must be calibrated using the two point calibration method.

Potentiometer

ACCS Jump Ranges

200A

010/420: 420-L:

7.7 - AC current sensor

Sensor type Current transformer ACCS-420, ACCS-420-L and ACCS-010

Header selectable amperage range

ACCS-420/010 = 100/150/200A ACCS-420-L = 10/20/50A

Output (Representing 0–100% of full scale input range) ACCS-420(-L) = 4–20mA DC loop powered ACCS-010 = 0–10V DC

Isolation voltage 2,000V

Power supply

ACCS-420(-L) = Loop powered, 15–36V DC ACCS-010 = Self powered

Overload (continuous)

ACCS-420/010 = 175/300/400A respectively ACCS-420-L = 80/120/200A respectively

Accuracy 1% of full scale

Response time 250ms (10–90%)

Frequency 50–60Hz

The Zen Datalogger accepts input from a Dene Instruments AC current sensor.

Set the jumper on the top of the current sensor to the desired current range, as shown below.

0–100A 0–10A

0–150A 0–20A

0– 0–50A

Current

Sensor

External

AC Current

Sensor

4–20mA

24V DC

Supply

AC Current

Sensor

AC Current

Sensor

0–10V

7.8 - Attenuator

Max input voltage 1000V DC

Attenuation factor 1000

±0.1%

Input impedance 3.8MΩ

This unit accepts input from a high voltage attenuator (HVA-1000). Wire the attenuator as shown.

Output impedance 3.8kΩ

Attenuator type Dierential

resistive

Ambient dri 50ppm/°C max

Attenuator

Out

0–100.00V or

0–1000.0V

Analog Output Digital Inputs

CONNECTING TO A PLC

8.1 - Connecting to a PLC as an intelligent multiplexer

the Zen Datalogger can easily be congured as an intelligent multiplexer via the 'Retransmission' tab in Dene WorkBench. To do this, select 'Multiplexer (Binary)' as the Retransmission

Mode and wire the unit as shown below.

Specications

Settling time before reading 100msec

min. Multiple readings with averaging recommended. (Longer times may be required for longer cable lengths and higher resolution.)

Binary signal magnitude 5–30V DC

Cycle time 4sec min to cycle through all 16

inputs

Resolution 15 bits, 16,000 steps typical

NOTE

Multiplexer Mode uses both the Retransmission Outputs and the Digital Inputs.

Digital Inputs can no longer be congured independently via the 'Digital Inputs' tab.

Indicator

or PLC

4–20mA

Indicator

or PLC

4–20mA

External

+24V Supply

Binary Switch

Binary Channel Selection

The Binary Channel selection is PLC RTX, and uses the four digital inputs (A–D), as shown below:

› DI Com = CS Com › DI A = Bin 1 › DI B = Bin 2 › DI C = Bin 4 › DI D = Bin 8

A binary value of ‘0’ indicates no voltage on the terminal, while a value of ‘1’ indicates 5–30V DC on the terminal.

DI A

BIN 1

DI B

BIN 2

0 0 0 0 1

1 0 0 0 2

0 1 0 0 3

1 1 0 0 4

0 0 1 0 5

1 0 1 0 6

0 1 1 0 7

1 1 1 0 8

0 0 0 1 9

1 0 0 1 10

0 1 0 1 11

1 1 0 1 12

0 0 1 1 13

1 0 1 1 14

0 1 1 1 15

1 1 1 1 16

DI C

BIN 4

DI D

BIN 8

Retrans. Channel

Notes & Recommendations

› Analog Output A is used to retransmit the input process values 1–16, and Analog Output

B is used to retransmit the controller setpoints 1–16.

› The input and output always share the same range. E.g. If Input 1 is ranged 32–212°F

(0–100°C) and retransmission Channel 1 is selected on DI A–D, then AO A and AO B are both transmitted as 4–20mA = 32–212°F (0–100°C). Similarly, if Input 2 is ranged for 32–482°F (0–250°C), then AO A and AO B are transmitted as 32–482°F (0–250°C).

› If AO A process value or AO B setpoint are transmitted to an indicator, then all the inputs

must be ranged the same, (unless the indicator is ranged to 0–100%).

› In the PLC RTX modes, AO B always retransmits the controller setpoint regardless of

whether the controller is enabled or not.

› The PLC RTX modes can operate simultaneously with the Scada Comms, allowing a PLC

to read back data that the Scada will be showing.

› If multiple Zen units are wired to the same PLC, then it is recommended that the analog

inputs to the PLC be isolated.

Connection example for an intelligent multiplexer

PLC

Input Module

Analog Input

Regulated Power Supply 24V DC

PLC

Output Module

Open Collector Output No 1

Open Collector Output No 2

Open Collector Output No 3

Open Collector Output No 4

Note 1 In this conguration the DI Com and digital inputs are isolated from the inputs and outputs. The 24V external power supply can therefore be used to power transmitters connected to the Zen's inputs.

Note 2 Each digital input draws 10mA at 24V DC.

Zen

AO Com

AO 1

DI Com

DI 1

DI 2

DI 3

DI 4

Note 3 All cables must be screened,with screen earthed at one end only.

Note 4 There is no limit to the number of Zens that can be connected, except that the power supply and open collector outputs must be able to handle the load.

8.2 - Zen registers

Below is a list of the commonly used Zen Datalogger registers. For a full register list, please see the Zen Registers document, available at: deneinstruments.com/zen-registers

Analog inputs 32 bit signed registers

Ch1= 645/646 Ch2= 647/648

Ch3= 649/650 Ch4= 651/652

Ch5= 653/654 Ch6= 655/656

Ch7= 657/658 Ch8= 659/660

Ch9= 661/662 Ch10= 663/664

Ch11= 665/666 Ch12= 667/668

Ch13= 669/670 Ch14= 671/672

Ch15= 673/674 Ch16= 675/676

Counter/frequency inputs 32 bit signed integers

Counter1= 525/526

Counter2= 527/528

Counter3= 529/530

Counter4= 531/532

Analog inputs 32 bit oating point

Ch1= 1193/1194 Ch2= 1195/1196

Ch3= 1197/1198 Ch4= 1199/1200

Ch5= 1201/1202 Ch6= 1203/1204

Ch7= 1205/1206 Ch8= 1207/1208

Ch9= 1209/1210 Ch10= 1211/1212

Ch11= 1213/1214 Ch12= 1215/1216

Ch13= 1217/1218 Ch14= 1219/1220

Ch15= 1221/1222 Ch16= 1223/1224

Totalizers 32 bit signed integers

Total1= 289/290 Total2= 291/292

Total3= 293/294 Total4= 295/296

Total5= 297/298 Total6= 299/300

Total7= 301/302 Total8= 303/304

Total9= 305/306 Total10= 307/308

MAINTENANCE

9.1 - Calibration

Your Zen Datalogger has been fully calibrated at the factory, and can be recalibrated in soware using Dene WorkBench (see Section 4). Scaling to convert the input signal to a desired display value is also done using WorkBench

If your Zen unit appears to be behaving incorrectly or inaccurately, refer to troubleshooting before attempting to calibrate it. When recalibration is required (generally every 2 years), it should only be performed by qualied technicians using appropriate equipment.

Calibration does not change any user programmed parameters. However, it may aect the accuracy of the input signal values previously stored.

9.2 - Troubleshooting

Issue Resolution

Input signal is not reading correctly

Auto-detecting RS Port is not working

Beat light stays ON for more than 1 minute

Cannot power up unit Check the power supply connections and supply range. (The

Ethernet device does not appear on the network when trying to connect in WorkBench

Check positioning of fail-safe micro switch

The fail-safe micro switch should be switched o for all input types except mA. See 7.1 to conrm.

Ensure that any terminal connections marked 'NC' are le open - otherwise the Zen will not be able to auto-detect your serial type.

This indicates an error. Please return the Zen RTU to the manufacturer for analysis and repair.

polarity on the power input is irrelevant.)

Repower the device aer you plug in the ethernet cable to ensure that it appears on the network.

For further assistance, please contact technical support using the contact details listed at the end of this document.

APPENDIX A - EMC TEST RESULTS

Statement of compliance

Products in the Dene Instruments 'Zen' series comply with EN 61326-1:2006.

Results summary

The results from testing carried out in March 2014 are summarized in the following tables.

Immunity - Enclosure Ports

Phenomenon Basic Standard Test Value Performance Criteria

EM Field IEC 61000-4-3 10Vm (80MHz to 1GHz)

Electrostatic Discharge (ESD)

IEC 61000-4-2 4kV/8kV contact/air Meets Criterion A (Note 1)

3V/m (1.4–2.7GHz)

Immunity - Signal Ports

Phenomenon Basic Standard Test Value Performance Criteria

Conducted RF IEC 61000-4-6 3V (150kHz to 80MHz) Meets Criterion A

Burst IEC 61000-4-4 1kV (5/50ns, 5kHz)

Surge IEC 61000-4-5 1kV L-E Meets Criterion A (Note 1)

1kV (5/50ns, 100kHz)

Meets Criterion A

Meets NAMUR NE 21 recommendation

Meets Criterion A (Note 1) Meets NAMUR NE 21 recommendation

Immunity - AC Power

Phenomenon Basic Standard Test Value Performance Criteria

Conducted RF IEC 61000-4-6 3V(150Khz to 80Mhz) Meets Criterion A

Burst IEC 61000-4-4 2kV (5/50ns, 5kHz) L-N

1kV (5/50ns, 5kHz) L-L

Surge IEC 61000-4-5 2kV L-E

1KV L-L

Voltage Dips IEC 61000-4-11 0% during 1 cycle

40% during 10/12 cycles 70% during 25/30 cycles

Short Interruptions IEC 61000-4-11 0% during 250/300 cycles Meets Criterion A (Note 1)

Meets Criterion A Meets Criterion A

Meets Criterion A Meets Criterion A (Note 1)

Meets Criterion A Meets Criterion A Meets Criterion A

Performance Criteria

Performance Criterion A

During the test, normal performance within the specication limits.

Performance Criterion B

During testing, temporary degradation, or loss of performance or function which is self-recovering.

Performance Criterion C

During testing, temporary degradation, or loss of function or performance which requires operator intervention or system reset occurs.

*Note 1: EN61326-1 calls for a Criterion B pass; unit exceeds this by meeting Criterion A.

The FM1602 display can be purchased separately to enable fast, eld viewing of your input channel data, without connecting to WorkBench. The display is congured to function with your Zen Datalogger automatically, with no setup required.

Simply connect the HMI ribbon cable to your Zen's display port (shown in 6.1). The FM1602 will immediately display the current values for input channels 1 and 2 (pictured below).

To view other input channels, press the the next data pair.

APPENDIX B - OPTIONAL FM1602 DISPLAY

and buttons to toggle forwards/backwards to

De ne Instruments

New Zealand

(Head O ce)

Auckland 0632, New Zealand

Auckland 0661, New Zealand

Ph Fax

www.de neinstruments.co.nz

10B Vega Place, Rosedale,

PO Box 245 Westpark Village,

: +64 (9) 835 1550

: +64 (9) 835 1250

sales@de neinstruments.co.nz

Zen Datalogger Document Revision Code: ZEN-LOG-MAN-16V03 Date Code: 160930

United States (Dallas, TX)

Ph: (214) 926 4950

sales@de neinstruments.com

www.de neinstruments.com

South Africa (Pretoria)

sales@de neinstruments.co.za

www.de neinstruments.co.za

Define Instruments ZEN–LOG-HV-RS, ZEN–LOG-HV-EMOD, ZEN–LOG-MV-RS, ZEN–LOG-MV-EMOD User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual