The screenshot shows the information you see when the link is in 32Mbit Flex mode. Up to 15 devices can be connected in a ring topology per FO link. In the signal tree on the left, the links 1 - 15 below the FO link correspond to the address set at the connected device by means of the rotary switch.

For explanations of the setting options, see 3Mbit protocol.

Additional items (compared to 3Mbit protocol):

In the Link area

Time between telegrams

Time between two telegrams measured by the ibaFOB-D card It should be equal to the configured frame time.

Mode

The status of the link is shown:

  • Ring: One or more devices (cascade) are bidirectionally connected and the FO ring is closed.

  • Open chain: Only the FO input is connected to a device. The output is not connected or the ring is interrupted at one point in the cascade.

Mirror mode

Indicates whether mirror mode is disabled or enabled. If mirror mode is enabled, the display shows whether the device is configured as master or slave system. For description of mirror mode refer to chapter Mirror mode with 32Mbit Flex.

Roundtrip delay

Telegram cycle in the closed FO ring. The time depends on the number of connected devices in the ring (approx. 2 µs per device).

Due to the roundtrip delay the data of the connected devices might be captured asynchronously (up to one telegram cycle).

Frame time

Cycle in which the data frames are sent

(Smallest configurable timebase of the connected devices or 100 µs if this timebase is an integer multiple of 100 µs. The timebase of all devices must be a multiple of the smallest timebase.)

Table

The table shows the cycle time and the data size of the respective channel:

  • Row 0: Ethernet channel

  • Rows 1-15: connected devices with the respective address 1-15