Teracom TCW260 User manual

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1. Introduction
TCW260 is an energy monitoring module with Ethernet connectivity and data logging capability. All
monitored parameters can be seen as numbers and as graphs.
The device has 4 digital inputs, S0+ compatible. The inputs can work in two modes –OPEN/CLOSED for
a reading of “dry contact” outputs and COUNTER mode for direct connection of energy meters with
pulse outputs.
The energy monitoring module has also 6 analog inputs. Every analog input can work either in voltage
(0/10V) or current loop (0/20mA) modes. The mode is changed over the user interface.
All digital and analog inputs are fully isolated from the power supply.
TCW260 supports MODBUS RTU interface for up to 24 Teracom and third-party sensors. The used RS-
485 interface is fully isolated from the power supply.
The user can arrange up to 24 independent monitoring channels from the inputs and sensor readings.
Every channel can be set up using up to 2 input parameters and/or constants. There are three type of
channels –discrete (for OPEN/CLOSED outputs monitoring), general (for general monitoring) and
cumulative (for energy, volume, etc. monitoring).
The user can also arrange up to 24 independent alarms with 5 different user selectable states. Every
alarm can be set up using up to 2 limits and hysteresis. The alarm can be assigned to a specific channel.
In this case, in an alarm state, the assigned channel is colored on the monitoring page and graphs.
The device supports SNMP, HTTP API, MODBUS/TCP and MQTT as machine-to-machine (M2M)
communication.
2. Features
•10/100 Mb Ethernet connectivity with Auto-MDIX;
•Password protected, web-based configuration and control;
•4 digital inputs, S0-pulse interface compatible;
•6 analog inputs with 0/10V and 0/20mA modes;
•MODBUS RTU interface for up to 24 sensors (registers);
•Up to 24 channels for monitoring;
•Up to 24 independent alarms;
•SNMPv2 and SNMPv3 support;
•SNMP traps sending for alert conditions;
•HTTP and SNMP port changing;
•HTTP API commands;
•Periodical HTTP/HTTPS Post of XML/JSON status files for client-server systems;
•MODBUS TCP/IP support;
•MQTT 3.1.1 support;
•Dynamic DNS with DynDNS, No-IP and DNS-O-Matic support;
•NTP protocol support;
•Data logger for up to 70000 records;
•DIN Rail Mountable;
•Wide power supply voltage range;
•Backup/restore of settings;
•Remote firmware update.

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3. Applications
The energy monitoring module TCW260 is dedicated to monitoring and recording the parameters of the
measurement of resources - electricity meters, gas meters, water meters, and others. Rising resource
costs require reliable analysis and optimization. Depending on the search result, this can be done at a
micro level (separate machine) or macro level (company).
The monitoring module can integrate seamlessly into already working objects. With proper selection of
sensors, this can happen even without interrupting the production process.
Of course, the module can be used also for general monitoring of industrial processes.
A few example applications include:
•Energy analysis and optimization;
•Water consumption analysis;
•Gas consumption optimization;
•A building management system;
•Industrial processes monitoring;
•General SCADA systems.
4. Specifications
•Physical characteristics
Dimensions: 145 x 90 x 40 mm
Weight: 200 g
•Environmental limits
Operating temperature range: -20 to 55°C
Storage temperature range: -25 to 60°C
Operating relative humidity range: 10 to 80% (non-condensing)
•Warranty
Warranty period: 3 years
•Power requirements
Supply Voltage: 10 to 28 VDC
Input Current: 220 mA @ 12 VDC (without RS-485 powering)
•RS-485 interface
Isolation: Isolated (1000VDC)
Output voltage (pin 7 of RJ-45): 5.0 ± 0.3 VDC
Maximum output current (pin 7 of RJ-45): 0.2 A
•Digital inputs
Isolation: Isolated (1000VDC)
Mode: OPEN/CLOSED (“Dry contact”) or COUNTER (S0-pulse interface outputs)
Maximum input voltage: +5.5VDC
Sampling rate: 1mS
Digital filtering time interval: 5 to 60000mS

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•Analog inputs
Isolation: Isolated (1000VDC)
Type: Single ended
Resolution: 10 bits
Mode: Voltage or current loop
Input Range: 0/10V or 0/20mA
Accuracy: ±1%
Sampling Rate: 600mS per channel (averaged value of 100 samples)
Input Impedance: 1 mega-ohm (min.)
•Internal FLASH memory
Settings segment endurance: 100 000 cycles (Every setting change is a memory cycle).
Data logger segment endurance: 100 000 cycles of 70000 records.
Update segment endurance: 100 000 cycles (updates).
5. LED indicators
The following indicators show the status of the controller:
•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;
•NET (orange) –network status - ON when a link is established, blinks if there is an activity.
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
TCW260 should be mounted in a clean and dry location on a not flammable surface. Ventilation is
recommended for installations where the 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
TCW260 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.

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Make sure that the wires are properly attached to the terminals and that the terminals are tightened.
Not the proper wiring and configuration can cause permanent damage to TCW260 or the equipment
to which it is connected or both.
Connector 1 Ethernet - RJ45 Pin4 –Line B-
Connector 2 Power - 2.1x5.5mm connector, Pin5 –Line A+
(Central positive) Pin6 –not connected
Connector 3 Pin1 –Power positive Pin7 –+VDD
Pin2 –Power negative (GND) Pin8 –SGND
Connector 4 Pin1 –S04- (SGND) Connector 6 Pin1 –D0/A+
Pin2 –not connected Pin2 –SGND
Pin3 –S04+ (Digital in 4) Pin3 –D1/B-
Pin4 –S03- (SGND) Connector 7 Pin1 –Analog in 1
Pin5 –not connected Pin2 –SGND
Pin6 –S03+ (Digital in 3) Pin3 –Analog in 2
Pin7 –S02- (SGND) Pin4 –SGND
Pin8 –not connected Pin5 –Analog in 3
Pin9 –S02+ (Digital in 2) Pin6 –SGND
Pin10 –S01- (SGND) Pin7 –Analog in 4
Pin11 –not connected Pin8 –SGND
Pin12 –S01+ (Digital in 1) Pin9 –Analog in 5
Connector 5 Pin1 –not connected (most left) Pin10 –SGND
Pin2 –not connected Pin11 –Analog in 6
Pin3 –not connected Pin12 –SGND
It is recommended using grounding configuration with isolated local ground and PE.

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6.2.1. Power supply connection
TCW260 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.
6.2.2. Digital inputs connection
All inputs are galvanic isolated from the power supply.
The digital inputs of TCW260 in OPEN/CLOSED mode can be used for monitoring of devices with
“dry contact” outputs – door contact switch, push button, PIR detector, etc.
The following picture illustrates how a dry contact switch can be connected to the input of
TCW260. One side of the contact is connected to “S0+” and another side is connected to “S0-”
terminals.
The digital inputs of TCW260 in COUNTER mode can be used for monitoring of devices with S0-
pulse interface –energy meters, water meters, etc.
The following picture illustrates how an energy meter is connected to the input of TCW260. One
side of the contact is connected to “S0+” and another side is connected to “S0-” terminals.
The maximum cable length should be up to 30 meters.

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6.2.3. Analog inputs connection
All inputs are galvanic isolated from the power supply.
Analog inputs of TCW260 can be used for monitoring of devices with voltage and current loop
outputs. They can be connected directly to analog sensors for temperature, humidity,
current/voltage transducers, etc.
The following picture illustrates how a battery can be connected to the analog input of TCW260 in
voltage mode. The positive terminal is connected to “Analog In” and the negative terminal to
“GND”.
The following picture illustrates how an analog sensor for temperature with current loop output is
connected to the analog input. The active terminal is connected to “Analog In” while the shield
terminal to “GND”.
The maximum cable length should be up to 30 meters.

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6.2.4. RS-485 connection
RS-485 interface is galvanic isolated from the power supply.
Up to 24 MODBUS RTU sensors can be connected to TCW260. The device supports Teracom and
third-party sensors.
Connections can be realized by a standard RJ-45 connector. The used pinout is that one
recommended in the document “MODBUS over Serial Line Specification and Implementation
Guide”available on www.modbus.org.
It is mandatory to use 120ohms line terminators at both ends of the bus. TCW260 incorporates
one of the terminators and should be placed at one end. So the client should only take care of
terminating at the other end of the line.
It is strongly recommended using “daisy-chained” (linear topology) for multiple sensors:
For sensors with screw terminals following connection is possible:
It is recommended to use only UTP/FTP cables and keep total cable length up to 30 m, although
functionality has been achieved on a longer distance.

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6.2.5. Network connection
The Ethernet port of TCW260 should be connected to 10/100 Base-T Ethernet hub, switch or
router.
For configuration, TCW260 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.
TCW260 can be used in a wireless network by connecting through a wireless router.

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6.3. Communication setup
By default TCW260 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 TCW260 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”:
This address should be on the same network - for example 192.168.1.3: