DeviceNet slave interface
There are two types of configuration. In the default configuration (delivery state) the DeviceNet data of the DeviceNet Slave interface map from the address 1000 of the BX5200/BC5250 and the first 8 bytes are activated. The length of the DeviceNet data and the characteristics of the local controller can be edited via the function blocks.
In the TwinCAT configuration, any required configuration can be created via the System Manager and variables can be connected in any required combination via the DeviceNet slave interface.
Default Configuration
In this configuration, the DeviceNet data are mapped as follows:
DeviceNet data
|
Number |
Read/Write |
BX5200/BC5250 process image |
|---|---|---|
|
8 bytes (Polling Mode) |
Rx/Tx |
%IB1000...%IB1007/QB1000...%QB1007 |
If it is required to send or receive more/less than 8 bytes of data, the default setting must be changed by means of the function block (see DeviceNet-specific function blocks).
Characteristics of DeviceNet communication
The following characteristics can be set. Mixed operation of the DeviceNet communication types is not possible.
Polling
The master module ("scanner") sends the output data cyclically to the assigned devices and receives the input data in a response telegram.
Change-of-State
Telegrams are sent as soon as their contents have changed.
Cyclic
The modules send the data automatically after a cycle time has elapsed.
Strobed
The scanner requests the input data using a broadcast telegram to all the devices.