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SIMATIC, S7-200, S7-300,
S7-400, WinCC, STEP, and S5 are registered trademarks of Siemens
TB20-C CanOpen Slave
TB20-C Canopen Slave head for TB20 I/O system
Includes internal Power module
Up to 64 modules per rack (Siemens ET200S only allows 12)
Hotswap module capable
Free Software Toolbox for simulation and diagnosis in addition to information available from Siemens STEP7 / TIA Portal, or WinPLC7 software.
Detailed status indication of all modules in use in the system
Fault Tracking and fault repair
Galvanic isolation between fieldbus and backplane bus
TB20-C, Bus Coupler CanOpen IO
The CANopen® bus coupler is designed to connect a CAN bus to
TB20 peripheral modules.
It supports the CANopen® protocol
as defined in DS 301 and uses the DSP-401 profile for digital and
analog I/O modules.
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-plug for replacing modules
In addition, this coupler makes it possible to use SDOs to freely
access all I/O values, parameters, and diagnostics, and can manage
up to 192 bytes of I/O data with the PDO protocol.
The 24 V power supply connector, the final bus cover, and the base module are included as standard.
TB20 ToolBox makes it easy to methodically design TB20 systems. Integrated terminal mapping, system width calculations, and Current-carrying capacity monitoring all make it possible to quickly design systems without making any mistakes.
••CANopen® protocol as defined in DSP301 and DS401
••Baud rates of 50 kbps to 1 Mbps
••24 TPDOs / 24 RPDOs
••One SDO server
••Two heartbeat consumers
••Storable parameter configuration
••Up to 64 peripheral modules
••Modules can be replaced during operation (hot-plug)
••24 VDC power supply
••Integrated power supply unit for powering peripheral
modules (2.5 A)
••Supplies the system’s I/O voltage (24 VDC)
••DIP switch for setting the node ID and baud rate; can be
••5 LEDs, two of them bi-color
••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)