Setting An Isochronous Communication - Datalogic AMT58 Series Manual

Only industrial IRT switches can be used.
Typical cycle time 1 ms or less. When the encoder is installed as a TO Technology Object
(see "
2 ms. All network components must support PROFINET IRT frame priority processing.
Position values are captured with an accuracy of +/- 1 µs or better, with respect to the
highly accurate bus clock.

Setting an isochronous communication

To activate the real-time class 3 both the IO controller and the IO device must be config-
ured. To do this proceed as follows.
1. Enter the Network view: the bus connection between the encoder and the PLC is
Figure 1. Encoder inserted in the Network view
2. Now enter the Topology view and connect the PROFINET interface of the encoder
Figure 2. Setting the topology
TO Technology Objects" on page 34
established.
to the PROFINET interface of the CPU, i.e. interconnect the corresponding ports of
the PROFINET interfaces of the devices.
REAL-TIME CLASS 3 (IRT_TOP) (RT3)
), the cycle time must be greater than or equal to
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INSTRUCTION MANUAL