The PROFIBUS-DP bus coupler is designed to connect a PROFIBUS bus to TB20 peripheral modules. It supports the DP-V0 and DP-V1 protocols.
It will recognize all connected peripheral modules and assign each module the corresponding inputs/outputs from the process image table.
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 bus coupler supports hot-swap for replacing modules during operation.
Starting with firmware version 1.20, the states of 2-bit and 4-bit I/O modules can be packed together in bytes, making it possible to take full advantage of all the space in the process image table.
- Diagnostic alarm: On | Off
- Process alarm: On | Off
- Pull/plug alarm: On | Off
- Startup when expected/actual configuration differ: On | Off (hot-swaping allowed: Yes | No)
- Identifier-related diagnostics: On | Off
- Submodule status: On | Off
- Channel-related diagnostics: On | Off
Scope of delivery: Bus coupler PROFIBUS-DP, 24 V power supply connector, bus cover element, base module
Dimensions (DxWxH): 73 x 35 x 110 mm
|Modules can be replaced during operation (hot-swapping)|
|24 VDC power supply|
|Integrated power supply unit for powering peripheral modules (2.5 A)|
|Supplies the system’s I/O voltage (24 VDC)|
|USB device port for online diagnostics, configuring parameters, setup, and firmware updates with TB20 ToolBox|
|TB20 ToolBox simulation for setting up the I/O system without a higher-level controller in order to test the system`s operation (I/O check)|
|PROFIBUS DP slave as defined in EN 50170/IEC 61158|
|Supports all PROFIBUS baud rates|
|DP-V0 and DP-V1 support|
|Up to 64 peripheral modules|
|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)|
|3 LEDs, one of them bi-color|
|Concealed "factory reset" switch for restoring the module to its factory settings