Helmholz TB20-C, Bus Coupler PROFIBUS-DP Slave

The PROFIBUS-DP bus coupler is designed to connect a PROFIBUS fieldbus to TB20 peripheral modules. It supports protocols DP-V0 and DP-V1.

A functioning TB20 configuration will always require a bus coupler and at least one peripheral module, but can accommodate up to 64 modules of any kind connected in series with the bus coupler. The PROFIBUS-DP bus coupler supports hot-swapping for replacing modules during operation.

The bus coupler will recognize all connected peripheral modules and assign each module the corresponding inputs/outputs from the process image table.

General characteristics

- PROFIBUS DP slave as per EN 50170/IEC 61158

- Supports all PROFIBUS baud rates

- DP-V0 and DP-V1 support

- A maximum of 64 modules

- Supports hot-plug

- Up to 244 bytes of input data and 244 bytes of output data

- One class 1 master connection with 240 bytes of payload data

- Up to three class 2 master connections with 240 bytes of payload data (as a DP-V1 slave)

- 24 VDC power supply

- I&M data

- Integrated power supply unit for powering peripheral modules (2.5 A)

- Supplies the I/O voltage (24 VDC)

- DIP switch for configuring the PROFIBUS address; can be covered

- 3 LEDs, one of them bi-color

- USB device port for online diagnosis with TB20 ToolBox Parameters

- Diagnostic alarm: ON | OFF

- Process alarm: ON | OFF

- Pull/plug alarm: ON | OFF

- Startup when expected/actual configuration differ: ON | OFF (hot plugging allowed: Yes | No)

- Identifier-related diagnostics: ON | OFF

- Submodule status: ON | OFF

- Channel-related diagnostics: ON | OFF

Technical data/Ordering data

TB20-C, Bus Coupler PROFIBUS-DP Slave

S/N: 600-151-1AA11

PROFIBUS interface

- Protocol: PROFIBUS DP/V0 & DP/V1 as per EN 50170

- Baud rate: 9.6 kbaud to 12 Mbaud, automatic detection

- I/O image table size: 244 input bytes/244 output bytes

- Parameter configuration length: 244 bytes

- Interface: RS-485

- Connector: 9-pin D-sub female connector

USB port

- Protocol: Full-speed USB 2.0 Device

- Connector: Mini-USB

- Electrical isolation: Yes

- Isolation voltage: 1.5 kV

Power supply: 24 VDC, 18–28 VDC

Current draw without modules (internal): 75 mA

Power dissipation: Max. 8 W

Power supply for modules: 5 VDC; max 2.5 A

Dimensions (H x W x D): 110 mm x 35 mm x 73 mm

Weight: 115 g

Certifications: CE, UL pending

Noise immunity: DIN EN 61000-6-2 "EMC Immunity"

Interference emission: DIN EN 61000-6-4 "EMC Emission"

Vibration and shock resistance:         DIN EN 60068-2-8:2008 "Vibration"

                                                                  DIN EN 60068-27:2010 "Shock"

Protection rating: IP 20

Relative humidity: 95 % without condensation

Installation position: Any

Permissible ambient temperature: 0 °C to 60 °C

Transport and storage temperature: -20 °C to 80 °C