Nidec Unidrive M700 User Manual
Also see for Unidrive M600: Design guideInstallation sheetMounting Installation SheetInstallation sheet
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Contents
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162 SI-Ethernet User GuideIssue: 37.5.7 Configuring the PLCDue to the many different makes of PLCs available, the information in this section may not berelevant to all types of PLCs. The information supplied in this section relates to the “ControlLogix”family of controllers supplied by “Allen Bradley”.When configuring the PLC for cyclic communication with Unidrive M, the length of each parameterdata word and the number of parameters must be specified correctly, Figure 7-5, shows the PLCconfiguration for 20 input parameters and 20 output parameters, as each parameter consists of 32bits (4 bytes), the length of each data word should be set to 32 bits (DINT - double integer word).The length of each data word must normally be configured when the Ethernet module is createdwithin the PLC and can not be changed. If a different length is required then a new Ethernet modulemust be created.In order to communicate with the Unidrive M, the PLC must have the Ethernet IP address setcorrectly as illustrated in Figure 7-5.Figure 7-5 PLC configuration7.5.8 Assembly objectsAn assembly object is an object which contains a group of attributes to control or monitor the driveoperation. These attributes can be members of EtherNet/IP objects or drive parameters. TheEthernet interface supports a series of standard assembly objects and two Control Techniquesobjects (100 and 101) to access the drive parameters (see Table 7-8 Supported drive assemblyobjects on page 163).Although the Allen Bradley PLCs are mentioned in this document, this does not repre-sent an endorsement of any particular PLC type or PLC manufacturer.Conformance with the pre-defined assembly objects specification can only be guaran-teed if the speed reference configuration of the drive has not been changed from the de-fault settings. For information on setting default values, refer to the appropriate drive userguide.NOTENOTE |
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