CANopen Fieldbus Coupler HE 5811
HIMOD is an intelligent I/O system for all common fieldbus standards. The fieldbus coupler HE 5811 with a CAN bus interface enables the transmission of process, parameter and configuration data. The fieldbus connection is made on the top of the Bus Coupler via a Sub-D connector. The serial communication interface allows simple connections to higher-level controllers, visualization tools, etc.
Each function module provides process values to the fieldbus coupler. The built-in module processor relieves the fieldbus coupler of measured value calculations. The inputs and outputs are multifunctional and require a specification. This is stored in the coupler and is transferred when a similar module is replaced, even during operation.
In the bus coupler, the areas of supply voltage, fieldbus and logic are galvanically isolated from each other. The system configuration consisting of bus coupler and I/O modules can be quickly determined via the button integrated in the front of the housing. Configuration and parameterization of the individual modules can be done via the fieldbus as well as via the SmartPort interface.
Up to 16 function modules can be connected and supplied to one bus coupler. The system structure can be extended by using power supply modules:
- Up to 62 function modules can be addressed logically by one bus coupler.
- Up to 4 installation levels can be set up.
- The maximum extension may be up to 10 m long.
CAN 'Controller Area Network' CAN is a serial bus system which originally comes from the automotive sector. The signals are transmitted via a twisted pair. The interference immunity of CAN networks is particularly high due to various measures, such as CRC checks, use of differential signals, etc. CAN describes the physical bus concept including the data link layer. The application layer, i.e. the protocol to be used, is not described by CAN. Therefore, a distinction must be made between CAN (physical bus) and CANopen (protocol, application layer).