Define instruments Zen-log-hv-rs User manual

Zen Datalogger

Data Logging Control Station

›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

defineinstruments.com/workbench

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 uni-

versal inputs.

Among the most exible data loggers on the

market, the Zen Datalogger is ideal for con-

necting to a mixture of analog and digital

sensors. The inputs are all individually isolat-

ed 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 down-

load 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, uti-

lizing 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 ................................................. 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

CONTENTS

ORDER CODES

Supply Voltage HV

85–265V AC / 95–370V DC

24–48V AC / 17–72V DC

Port 1 Comm RS

EMOD

RS422/485

Ethernet Modbus

Zen Datalogger Supply Voltage

ZEN–LOG – –

Port 1 Comm

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 compro-

mise the protection provided by the instrument. This instrument should not be used

to directly drive valves, motors, or other actuators, unless equipped with appropri-

ate 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.

Symbol denitions

CAUTION

Risk of electric shock

Please refer to user manual.

Both direct and alternating current.

CAUTION

Risk of danger

Please refer to user manual.

Equipment protected throughout by

DOUBLE INSULATION or REINFORCED

INSULATION.

1 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)

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

Noise immunity (CMRR) 160dB tested at

300V RMS 50Hz

Permanent memory (E2ROM) 100,000

writes per input parameter

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

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)

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.

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

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

2 DIMENSIONS & INSTALLATION

2.1 - Case dimensions

10.04" (255mm)

4.55"

(115.5

mm)

9.69" (246mm)

2.52"

(64

mm)

0.18"

(4.5mm)

2.35"

(59.8mm)

5.69" (144.4mm)

Programming PortDIN Rail

Micro SD Port

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 il-

lustrated 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 be-

low the unit, to allow room for airow and

wiring.

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' connec-

tors 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 slight-

ly 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 1

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 improve-

ment 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 con-

tactors. 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, in-

creasing the control box distance from

6" to 12" from the noise source will re-

duce 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 aeri-

als and pick up unwanted R.F. radiated

signals and noise; the earthed shield

acts as a faraday cage around the ca-

bles, shunting the unwanted energy to

ground.

Shields can also help with capacitively

coupled noise typically found in circum-

stances 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 fur-

ther be reduced at the load by adding

snubbers for AC signals or a yback di-

ode for DC coils.

3 INSTALLING DEFINE WORKBENCH

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).

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 al-

low 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.

4 SOFTWARE CONFIGURATION

4.1 - Connecting

Connect the Bridge Key

To program your Zen Datalogger, con-

nect 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.

Fig 4

Bridge Key

Interface Cable

PC Connection

INSTALL

SOFTWARE FIRST!

Zen Datalogger

Power Supply

Fig 5

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'.

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 automati-

cally appear in this panel as

you congure the Zen.

4.3 - Main navigation

Overview

View basic device information including Se-

rial 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 program-

ming port - perfect for adjusting settings

once your unit is installed.

Inputs

Set up and scale the 16 isolated input chan-

nels. 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.

Retransmission

Congure up the two analog outputs to

operate independently, or in cooperation

with the digital inputs as an intelligent

multiplexer.

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 func-

tions by selecting from a variety of pre-pro-

grammed modes, complete with detailed

explanations.

Relays

Congure the two relay outputs. These may

be driven from one or more setpoints, or di-

rectly 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 down-

load 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.

5 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 cur-

rently 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. Fig 6

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.

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 down-

load 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).

Programming Port

Programming connection

to Dene WorkBench

using the Bridge Key.

Port 1 Port 2

Digital Inputs

Zen Datalogger

EXPANSION

OUT

85−265V AC / 95−370V DC

24−48V AC / 17−72V DC

EMOD

RS422/RS485

Ethernet Modbus

FW:SN:

Li [DATA] ap.

Do not remove

SD card until

SAFE light is on.

N/C

MAC

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

4613002 2.1.01

ZEN-LOG-HV-EMOD

No user serviceable parts. Only to be installed

by service personnel. See installation

instructions prior to connecting to supply.

CAUTION! HAZARDOUS

VOLTAGES

PROG PORT

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

Universal Input Channels

Analog Outputs

Relay Outputs

Expansion Out

Connection point for ZEN-RIO

Relay I/O Expansion.

Display

HMI port for optional FM1602 display.

Power Supply

Universal AC/DC

–

85–265V AC

95–370V DC

24–48V AC

17–72V DC

N/C

6 WIRING & LED'S

See Section 7

See Section 4 for

more information

6.1 - Zen Datalogger terminals

See Appendix B for more information

Programming Port

Programming connection

to Dene WorkBench

using the Bridge Key.

Port 1 Port 2

Digital Inputs

Zen Datalogger

EXPANSION

OUT

85−265V AC / 95−370V DC

24−48V AC / 17−72V DC

EMOD

RS422/RS485

Ethernet Modbus

FW:SN:

Li [DATA] ap.

Do not remove

SD card until

SAFE light is on.

N/C

MAC

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

4613002 2.1.01

ZEN-LOG-HV-EMOD

No user serviceable parts. Only to be installed

by service personnel. See installation

instructions prior to connecting to supply.

CAUTION! HAZARDOUS

VOLTAGES

PROG PORT

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

Universal Input Channels

Analog Outputs

Relay Outputs

Expansion Out

Connection point for ZEN-RIO

Relay I/O Expansion.

Display

HMI port for optional FM1602 display.

Power Supply

Universal AC/DC

–

85–265V AC

95–370V DC

24–48V AC

17–72V DC

N/C

See 6.6 See 6.7

See 6.3 See 6.5

See 6.4

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:

ON = Relay Energised

OFF = Relay De-energised

ON = Digital Input Active

OFF = Digital Input Inactive

INTERNAL ON = Using onboard memory for datalog storage

SD CARD ON = Using Micro SD card for datalog storage

SAFE ON = Safe to remove Micro SD card

Indicates activity on the

Receive/Transmit lines

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 Multi-

plexer from the 'Retransmission' tab (see Section 8) - in this case the

Digital Inputs are disabled.

4–20mA

Indicator

or PLC

Indicator

or PLC

COM

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