Beckhoff FC3101, Documentation

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FC310x as master
FC3101 and FC3102 48 Version: 3.0
3.8.2 TwinCAT 2.9
3.8.2.1 FC310x tab
Fig. 26: TwinCAT 2.9 - FC310x tab
PCI Slot/Irq : Indicates in which logical PCI slot the card was found.
Search... : Searches for all connected FC310x channels. Select those required. In the case of an FC3102
both channels A and B appear. These behave in logical terms like two FC3101 cards.
Identify Device ...: Here an LED code can be output on the corresponding FC310x channel.
Stations No. : Each Profibus device requires a unique station number - including the master.
Baud rate : Set the Profibus baud rate.
Bus parameters (DP) ...: The Bus parameters dialog [ } 49] is selected here.
Operation Mode : In all three operation modes, the highest-priority task linked to the appropriate device will
take control of the PROFIBUS cycle and is therefore synchronized with the DP cycle (see the
Synchronization [ } 12] chapter). If this task is stopped or reaches a breakpoint, the FC310x switches to
CLEAR mode (slave outputs will assume 0 or safe values) (see the Error Reactions [ } 16] chapter). All other
tasks are served asynchronously via corresponding buffers. If one of these tasks is stopped or reaches a
breakpoint, the System Manager will generally display a message saying that the watchdog of the
appropriate asynchronous mapping has been activated, and the appropriate outputs are set to 0. For all
operation modes, one poll rate per slave can be set (in the
Features [
}
59] tab for the Box). The sequence
of the slaves in the PROFIBUS cycle corresponds to the sequence in which they are located in the FC310x
device tree. "DP" mode is used for standard DP operation; the operation modes "DP/MC (equidistant)" and
"Equidistant (no GC)" are described in the
PROFIBUS-MC [
}
25] chapter.
Cycle Time : Displays the cycle time of the corresponding highest priority task.
Estimated Cycle : Displays the expected PROFIBUS cycle time.
DP-Cycles/Task-Cycle : This can be used to set several DP cycles in a task cycle, in order to obtain as
many new inputs as possible (see Slave prioritization/several DP cycles [ } 14] chapter).