Teracom TCW220 Manuel utilisateur

TCW220_R4.1 – April 2017 Page 2

Ethernet data logger TCW220

1. Introduction

TCW220 is a general purpose and stand-alone Ethernet data logger for data acquisition applications. It

has 2 analog inputs, with 10-bit resolution and 2 digital "dry contact" inputs. It also has a 1-Wire

interface for up to 8 Teracom 1-Wire sensors - temperature, humidity, CO2, current, 4/20mA, galvanic

isolated analog voltage, etc.

TCW220 has 2 relays with normally open and normally closed contacts. The relays can be activated

either remotely (WEB, SNMP, HTTP API, MODBUS etc.) or locally – from the status of a monitored

parameter (1 Wire sensor, analog voltage, and dry contact)

All monitored parameters can be logged, in internal FLASH memory, on a previous set time interval

and/or on an alarm condition. The memory is large enough for at least 36 days with records on every 1

minute. The log file can be periodically uploaded on dedicated server by HTTP Post. The stored data

can be monitored on 4 graph pages.

XML/JSON file with all monitored parameters can periodically upload on dedicated server by HTTP

Post. Like answer server can return commands for relay's control. This is a way for building SCADA

system.

For every parameter e-mails and SNMP traps for up to 5 recipients can be sent. Alarm alert also can be

sent by HTTP Post with XML/JSON status files.

2. Features

 10/100 Mb Ethernet connectivity;

 Auto-MDIX;

 Ethernet data logger with up to 70000 records;

 Graphical display of logged data;

 Password protected web based configuration and control;

 2 digital "dry contact" inputs;

 2 analog inputs with 0 to 10VDC range, with 10-bit resolution;

 Settable multiplier, offset, and dimension for analog inputs;

 2 relays with NO and NC contacts;

 1-Wire interface for up to 8 Teracom sensors;

 SNMP v.2 support;

 SNMP traps to up to 5 recipients like alarm alert;

 MODBUS support;

 SMTP with TLS security;

 TLS 1.0, TLS 1.1 and TLS 1.2 support;

 e-mails to up to 5 recipients like alarm alert;

 XML/JSON status files;

 HTTP API commands;

 Dynamic DNS with DynDNS, No-IP and DNS-O-Matic support;

 NTP support;

 Periodical HTTP Post of XML/JSON status files for client-server systems;

 Port changing for HTTP, SNMP and MODBUS;

 Wide power supply voltage range;

 Remote firmware update.

TCW220_R4.1 – April 2017 Page 3

3. Applications

TCW220 is suitable for industrial automation, data acquisition systems, environmental monitoring and

local control of an electrical and non-electrical parameter, building automation etc.

It works very well as a standalone device that can be controlled using a web browser or as a part of

small to large industrial control systems for SCADA (supervisory control and data acquisition).

A few example applications include:

 Stand alone or system Ethernet data logger;

 Industrial process automation;

 Industrial environmental monitoring;

 Mushroom and winery environmental monitoring and control;

 Small to large SCADA systems;

 Ethernet data logger for storage facilities.

4. Technical parameters

Supply voltage, VDC 10 - 32

Maximum current ( with all relays ON), mA 240@12VDC

Weight, g 170

Dimensions, mm 115 x 90 x 40

Operating temperature, °C -20 to +55

Maximum humidity, %RH 70

Supply voltage for 1-Wire bus (VDD), VDC 5.0 ± 0.3

Maximum output current for 1-Wire bus (VDD), A 0.2

Analog inputs range, VDC 0 to 10

Analog inputs resolution, VDC 0.001

Analog inputs accuracy, % ± 1

Maximum switchable relay current, А 3

Maximum switchable relay voltage, VAC/VDC 42/60

5. LED indicators

The following indicators show the status of the controller:

 Relay1-Relay2 (green) – these LEDs are illuminated whenever the corresponding relay is

activated (the NO contact is closed and the NC contact is open);

 PWR (red) – in working mode shines, blinks together with STS if there is a hardware error;

 STS (yellow) – flashes when the main program of the controller is executed.

TCW220_R4.1 – April 2017 Page 4

6. Installation and setup

This device must be installed by qualified personnel.

This device must not be installed directly outdoors.

The installation consists of mounting the device, connecting to an IP network, connecting inputs and

outputs, providing power and configuring via a web browser.

6.1. Mounting

TCW220 should be mounted in a clean and dry location on a not flammable surface. Ventilation is

recommended for installations where ambient air temperature is expected to be high.

Mount the device to a wall by using two plastic dowels 8x60mm (example Würth GmbH 0912

802 002) and two dowel screws 6x70mm (example Würth GmbH 0157 06 70). Attach the screws to

the surface vertically. See Appendix-A, fig. 1 for mechanical details.

Maintain spacing from adjacent equipment. Allow 50 mm of space on all sides, as shown in fig.2 in

Appendix A, this provides ventilation and electrical isolation

TCW220 can be mounted to a standard (35mm by 7.55mm) DIN rail. Attach the controller to the

DIN rail by hooking the hook on the back of the enclosure to the DIN rail and then snap the bottom

hook into place.

6.2. Connection

Attention! Disconnect power supply before wiring.

The correct wiring procedure is as follows:

 Make sure power is turned off;

 Make wiring connections to the terminals;

 Apply power.

It is recommended to test and configure TCW220 without any controlled device. In this case,

unexpected turn on will be avoided.

Make sure that wires are properly attached to the terminals and that the terminals are tightened.

Not proper wiring and configuration can cause permanent damage to TCW220 or the equipment to

which it is connected or both.

TCW220_R4.1 – April 2017 Page 5

Connector 1 Ethernet - RJ45 Connector 5 Pin1 – 1-Wire GND

Connector 2 Power - central positive

Pin2 – 1-Wire Data

Connector 3 Pin1 – Power positive Pin3 – 1-Wire +VDD

Pin2 – Power negative

Connector 6 Pin1 – GND (most left)

Connector 4 Pin1 – NC Relay2 Pin2 – GND

Pin2 – COM Relay2

Pin3 – 1-Wire Data

Pin3 – NO Relay2

Pin4 – 1-Wire GND

Pin4 – NC Relay1

Pin5 – 1-Wire +VDD

Pin5 – COM Relay1

Pin6 – 1-Wire +VDD (most right)

Pin6 – NO Relay1

Connector 7 Pin1 – Digital In 1

Pin2 – GND

Pin3 – Digital In 2

Connector 8 Pin1– Analog In 1

Pin2 – GND

Pin3 – Analog In 2

6.2.1. Power supply

TCW220 is designed to be supplied by adapter SYS1421-0612-W2E or similar, intended for use in

the conditions of overvoltage category II, and prior assessed for compliance with safety

requirements. The power supply equipment shall be resistant to short circuit and overload in a

secondary circuit.

When in use, do not position the equipment so that it is difficult to disconnect the device from

the power supply.

TCW220_R4.1 – April 2017 Page 6

6.2.2. Digital inputs

Attention! Digital inputs are NOT galvanic isolated.

The digital inputs of TCW220 can be used for monitoring of devices with “dry contact” outputs –

door contact switch, push button, PIR detector etc.

The picture below illustrates how a dry contact can be connected to inputs of TCW220.

One side of the contact is connected to “Digital In” and another side is connected to “GND”

terminals.

The maximum cable length should be up to 30 meters.

6.2.3. Analog inputs

Attention! Analog inputs are NOT galvanic isolated.

Analog inputs of TCW220 have standard industrial range 0/10VDC. They can be connected

directly to analog sensors with 0/5VDC or 0/10VDC. The inputs are factory calibrated for better

accuracy.

Built in functionality “Multiplier”, “Offset” and “Dimension” for every analog input gives a

possibility to assign almost all analog sensors while directly measured parameter is shown.

It is also possible to monitor voltages bigger than 10 VDC with external resistive dividers.

The following picture illustrates how a high-temperature sensor can be connected to the analog

input of TCW220. The output of a sensor is connected to “Analog In” and the shield is connected

to “GND” terminal.

The maximum cable length should be up to 30 meters.

TCW220_R4.1 – April 2017 Page 7

6.2.4. 1-Wire interface

Up to eight 1-Wire sensors can be connected to TCW220. The device supports following sensors -

temperature, temperature/humidity, CO2, DC current, AC current, 4/20mA transmitter, galvanic

isolated analog voltage, barometric pressure etc. Connected sensors are automatically detected

and appropriate dimension is assigned.

For some sensors, like example TSV2xx and TSA2xx, multiplier, offset and dimension can be set.

This allows direct measured physical parameter monitoring.

1-Wire is a registered trademark of Maxim Integrated Products, Inc. It is designed to connect

several sensors over a short wiring. It is not suitable for long distances or environments with

EMC interference. We recommend reading Maxim’s 1-Wire tips at http://www.maxim-

ic.com/app-notes/index.mvp/id/148.

The sensors have three wires – positive voltage (+VDD), ground (GND) and bidirectional data

(Data). The colors of wires or pinot for every sensor are specified in its user manual.

It is strongly recommended to use “daisy-chained” (linear topology) for multiple sensors:

“Star” topology can be used only as a last resort for up to 4 sensors and total cable length up to 10

meters:

Connections can be realized either by screw terminal connector or by a standard RJ-11

connector.

There are many parameters which determine the maximum length of the wires – the type of

cable, the number of sensors, ambient electromagnetic noise and sensor network topology.

It is strongly recommended to use only UTP/FTP cables and keep total cable length up to 30 m.

Although functionality has been achieved in a longer distance, we cannot guarantee error-free

operation over mentioned wiring length.

We guarantee proper operation only with Teracom 1-Wire sensors.

TCW220_R4.1 – April 2017 Page 8

6.2.5. Relays

The relay contacts are internally connected directly to the terminal connectors. For all relays

normally open, normally closed and common contacts are available.

For loads with higher switchable current/voltage than specified, an external relay should be

used.

When mechanical relays switch inductive loads such as motors, transformers, relays, etc., the

current will arc across the relay contacts each time the contacts open. Over time, this cause

wears on the relay contacts which shorten their life. When switching an inductive load, it is

recommended that relay contact protection devices are used.

6.2.6. Network connection

The Ethernet port of TCW220 should be connected to 10/100 Base-T Ethernet hub, switch or

router.

TCW220_R4.1 – April 2017 Page 9

For configuration, TCW220 may be connected directly to the Ethernet port on a computer. The

device support Auto-MDIX and it is not necessary to use “crossover” cable, standard “straight-

through” can be also used.

TCW220 can be used in a wireless network by connecting through a wireless router.

6.3. Communication setup

By default TCW220 is delivered with the following network settings:

IP address: 192.168.1.2, Subnet Mask: 255.255.255.0, Default Gateway: 192.168.1.1

Communication with TCW220 can be established by assigning a temporary IP address to the

computer. For computers with Windows OS assigning of IP address is made in “Local area

connection properties”:

TCW220_R4.1 – April 2017 Page 10

This address should be on the same network - for example 192.168.1.3:

To get access to the web interface, you should type http://192.168.1.2 into the browser.

If the network settings are correct, the login pop-up window will appear:

All TCW controllers connected to LAN can be easily found by free tool “TCW discoverer”.

It is available for Win and Mac operating systems and can be downloaded from

www.teracomsystems.com

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