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
