Setting The Plc Cycle Time; Connecting To The Plc - Danfoss VLT ISD 511 Operating Manual

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VLT® Servo Drive System ISD 511

Operating Guide

Map the inputs and outputs of the instance of the AXIS_REF_DDS function block and the physical data points of the ISD 511

servo drive (here myAxis is an instance of AXIS_REF_DDS):



Illustration 45: I/O Mapping of an ISD 511 Servo Drive

Map the inputs and outputs of the instance of the PSM_REF, DAM_REF, and ACM_REF function blocks and the physical data

points of the PSM 510/DAM 510/ACM 510 accordingly.

6.5.12 Setting the PLC Cycle Time

The minimum cycle time is 400 µs. The servo system devices can run Ethernet POWERLINK

multiples of 500 µs. The devices are automatically parameterized by the PLC on start-up, depending on the Ethernet POWERLINK

configuration of the physical interface.

The Ethernet POWERLINK

configuration can be accessed by right-clicking [PLK → Configuration] in the Physical View.

Ensure that the task cycle times of the PLC program and Ethernet POWERLINK

and performance reduced.

Illustration 46: Ethernet POWERLINK<

Procedure for setting the PLC time in Automation Studio

Right-click [CPU → Open Software Configuration] for V3.0.90 and [CPU → Configuration → Timing] for V4.x in the Physical

View.

Ensure that the PLC cycle time is the same as the Ethernet POWERLINK

Information on how to connect to the PLC can be found in detail in the Automation Studio

Version V4.x:

Open the B&R Help Explorer and go to [Automation Software → Getting Started → Creating programs in Automation Studio → Ex-

ample project for a target system with CompactFlash].

N O T I C E

Configuration Window to Parameterize Ethernet POWERLINK

™

cycle times in multiples of 400 µs and

are the same. Otherwise, data could be lost

Cycle Time

cycle time.

Help.

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AQ377148425069en-000101 / 130R1213

Commissioning

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