COUPLERS

Tpa couplers allow connecting the expansion modules to disparate implemented fieldbuses. Each device has 16 digital I/O lines at 24 V (short-circuit protected, led signals), so that the cost of the node is better amortized. Under this category you will also find custom couplers, thought and developed to interface with different fieldbuses of specific devices, such as solenoid valve blocks, for instance.

EtherCAT is a real-time communication technology based on Ethernet, especially suited for communication between control systems and peripheral devices, like I/O systems, sensors, and drives.

EtherCAT makes the use of Ethernet in the industrial automation field possible, as it grants short updating times, low communication jitter, and a low price. EtherCAT can optimize the net performance thanks to all the different net slave-devices directly processing the frame on the fly. Using the “Distributed Clock” allows synchronizing all the slaves with a jitter lower than 1 μs.

As for the interface towards the applications, EtherCAT can use the protocols CoE (CANopen over EtherCAT), SoE (Sercos over EtherCAT), FoE (File over EtherCAT), and EoE (Ethernet over EtherCAT), so to ensure the compatibility both with the most common real-time fieldbus technologies, and the standard Ethernet ones, such as TCP/IP, UDP/IP, or FTP.

TRS-CAT

code TRS0.2.01

The coupler TRS-CAT allows us to connect an EtherCAT bus to a TRS bus, and it can be mounted on DIN rails. TRS-CAT is a complex slave device (bus coupler) as determined by ETG specifications. TRS-CAT includes 16 bidirectional digital I/O lines; each is configurable either as input or output.

It is possible to expand the TRS-CAT module with any TRS expansion unit, until a maximum of seven expansions. TRS-CAT is in compliance with the EMC Directive 2004/108/EC.

INPUT FUNCTIONS

  • Digital debounce filter;

  • possibility to have an input sampling synchronous with the PLC scheduler.

OUTPUT FUNCTIONS

  • 0.5 A highest voltage per output;

  • output overload and overvoltage safety (36 V);

  • real-time output re-reading (software diagnostics);

  • possibility to have an output activation synchronous with the PLC scheduler.

Star-CAT

code TRS0.2.02

Star-CAT is a hub designed for the EtherCAT fieldbus.
Star-CAT turns an EtherCAT linear network topology into a star topology, by using an input channel and up to 3 different output channels.

FUNCTIONAL SPECIFICATIONS

  • It interfaces by connecting the input to any point of the EtherCAT network, verifying that the communication flow includes the first master;

  • it connects to the EtherCAT bus through RJ-45 connectors;

  • it is possible to connect any other EtherCAT slave line, or again, a Star-CAT module to the three outputs, was a further “ramification” of the network needed;

  • led signalling the status of module and EtherCAT communication, in compliance with ETG specifications.

GREENBUS 4

GreenBUS 4 is Tpa dedicated protocol for field device communication.

It is an isochronous serial communication between a master device – numerical control or PLC – and several slave devices – the remotes (couplers and expansions). Electrically speaking, it is comparable to a RS-422 serial bus, that, in addition, feeds remote devices. Thanks to its isochrony, the GreenBUS 4 protocol is able to have remote devices communicate with a refresh time ranging between 1 and 4 ms, in a strictly deterministic way, at 4 Mbit/s through a common Ethernet cable. GreenBUS 4 grants the remotability of the analog axes, supports the output-rereading, does not need configuring the remote devices, and shrinks the hardware complexity and costs, thanks to the essentiality of the protocol.

TRS-IO

code TRS0.1.01

The bus coupler TRS-IO allows connecting the GreenBUS 4 to all TRS IO-expansion modules, with mechanical housing on DIN rail.

TRS-IO includes 16 bidirectional digital I/O lines. Each line is configurable either as input or output. It is possible to expand a TRS-IO module with any TRS expansion unit, up to a limit of five.

TRS-IO is in compliance with the EMC Directive 2004/108/EC.

INPUT FUNCTIONS

  • Digital debounce filter at 2 ms;

  • eventual input sampling synchronous with the PLC scheduler;

  • False until 10 Vdc, True starting from 18 Vdc;

  • voltage a single input absorbs: 3 mA.

OUTPUT FUNCTIONS

  • 24 Vdc voltage, 0.5 A highest voltage for each output;

  • output overload and overvoltage safety (36 V);

  • real-time output re-reading (software diagnostics);

  • automatic reset of outputs in case of short-circuit;

  • output activation synchronous with the PLC scheduler.

TRS-AX

code TRS0.1.02

The bus coupler TRS-AX, mountable on DIN rails, connects four counters for incremental encoders and as many analog outputs to the GreenBUS 4. The combination of counters and analog outputs on the same device allows managing a configuration of up to 4 axes; each axis can be either analog (+/-10 V) or step-by-step.

Available to each axis are the interfacing functions with differential encoders, including the zero-notch and the possibility to manage a fast input. It includes four digital outputs (0-24 V), able to drive loads with a maximum voltage of 0.5 A, and four fast digital inputs (0-24 V) to support Interrupt functions, such as the axis set-point, or the measuring function.
TRS-AX is in compliance with the EMC Directive 2004/108/EC.

DIGITAL OUTPUT FUNCTIONS

  • Supporting up to N outputs (with N = 4 - n° of configured step-by-step axes);

  • 0.5 A highest voltage per output;

  • output overload and overvoltage safety (36 V);

  • real-time output re-reading (software diagnostics);

  • possibility to wire the I/O with clips or screw terminals (AWG 24, AWG 12), possibility to wire them directly on the cable axes;

  • field powered separately from the logic circuitry;

  • light indicators signalling the output status.

ANALOG OUTPUT FUNCTIONS

  • Up to four 16-bit analog outputs, +/-10 V;

  • re-reading (software diagnostics) and light signalling of eventual errors.

INPUT FUNCTIONS

  • 1 fast input managed in Interrupt, can be enabled via software.

Star-TRS

code TRS0.1.04

Star-TRS is a hub designed for the 3.0/4.0 GreenBUS fieldbus, consisting of 1 input and 4 output lines. Star-TRS allows connecting Tpa remote modules through a star topology.
Moreover, Star-TRS amplifies the signal, allowing for connections at longer distances. Thanks to Star-TRS, it will be possible even for the most geometrically complex tool machines to use Tpa remote modules.

FUNCTION SPECIFICATIONS

  • Connection to control unit or remote module via 3.0/4.0 GreenBUS;

  • 3.0/4.0 GreenBUS uses a standard Ethernet 100BASE-TX cable (Cat 5 or higher) and standard RJ-45 connectors;

  • possibility to disable any of the 4 GreenBUS lines individually through switches;

  • leds signalling the communication;

  • leds signalling the power supply;

  • in compliance with the EMC Directive 2004/108/EC.

TRS-EV-24

code TRS0.1.05

The bus coupler TRS-EV-24 allows connecting to the GreenBUS 4.0 all solenoid valve modules that interface through a Canon 25-pin connector. The TRS-EV-24 has 24 built-in digital output lines. The module TRS-EV-24 is not expandable.

OUTPUT FUNCTIONS

  • 24 Vdc voltage, 0.5 A highest voltage for each output;

  • output overload and overvoltage safety (40 V);

  • automatic output reset in case of short circuit;

  • output activation synchronous with the PLC scheduler.

FUNCTION SPECIFICATIONS

  • Connection to a control unit via GreenBUS 4.0;

  • logic circuitry of coupler powered through GreenBUS 4.0;

  • field powered separately from the logic circuitry;

  • safety against inverting of field power supply;

  • led signalling the power is on;

  • can be mounted directly on EV group or DIN rails, EN 50022 or EN 50035;

  • size: 62*106*24.5 mm.

TRS-485

CODE TRS0.3.01

The bus coupler TRS-485 allows connecting to the RS-485 serial line 1.0 all TRS IO-expansion modules with mechanical housing on DIN rail. TRS-485 includes 16 bidirectional digital I/O lines. Each is configurable either as input or as output. It is possible to expand TRS-485 with any other TRS expansion unit, until a limit of five. TRS-485 is in compliance with the EMC directive 2004/108/EC.

INPUT FUNCTIONS

  • Digital debounce filter at 2 ms;

  • False up to 10 Vdc, True starting from 18 Vdc;

  • voltage absorbed by each input: 3 mA.

OUTPUT FUNCTIONS

  • 24 Vdc voltage, with 0.5 A the highest voltage per each output;

  • output overload and overvoltage safety (36 V);

  • output re-reading (software diagnostics);

  • automatic reset of outputs in case of short-circuit.

© 2019 by Tpa Srl

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Tpa Srl – Technologies and Products for Automation

20099, Sesto S. Giovanni (MI), Italy – via Carducci, 221

Tel. +390236527550 (r.a.) – P. IVA: 02016240968 – www.tpaspa.com