Comparison of direct and indirect fieldbus control

The following table shows the range of functions of the two connection options to the fieldbus system using the example of MOVITRAC® advanced.

Range of functions

Direct fieldbus control

Indirect fieldbus control
via fieldbus gateway

MCX91A-…T0./../CFN
MCX91A-…T0./../CFE

FHX/UHX..A and MCX91A-…S0./

Description

MOVITRAC® advanced with integrated fieldbus interface

MOVI-C® CONTROLLER as fieldbus gateway and MOVITRAC® advanced with integrated EtherCAT®/SBusPLUS interface

Number of
stations

Limited by higher-level controller

  • FHX/UHX25A (optionally with PROFIsafe routing): max. 8 axes per controller
  • FHX/UHX45A: max. 16 axes per controller, of which max. 8 axes with PROFIsafe routing
  • UHX65/85A: max. 24 – 48 axes per controller, depending on the number of devices with safety option

Number of
process data words

1 – 16 PO/PI data

1 – 16 PO/PI data per axis

Data management

Via CMM11A memory module in the axis or MOVISUITE® engineering software

Via CMM11A memory module in the axis or MOVISUITE® engineering software

Device Level Ring (DLR) /Media Redundancy Protocol (MRP)

DLR and MRP capable

The gateway is DLR and MRP capable.

The axes need not be integrated because the gateway is integrated in the respective topology as a node.

Error mapping

Error mapping possible

Error mapping implemented via process data input word 3

Fieldbus
addressing

PLC, addressing tool or
MOVISUITE®

PLC, addressing tool or MOVISUITE®

System bus
addressing

–

Automatically in MOVISUITE®

Keypads

Keypads can be used on axes with CDM11A diagnostic module

Keypads can be used on axes with CDM11A diagnostic module

Cabling

Standard network cable for fieldbus connection

  • Standard network cable for fieldbus connection
  • System bus cable for gateway connection with inverter

MOVIKIT®

  • Free parameterization or MOVIKIT® of the "Drive" category possible
  • MOVIKIT® of other categories not possible
  • Free parameterization or MOVIKIT® of the "Drive" category possible
  • MOVIKIT® of other categories not possible

Parameter channel

Available

UHX25A, UHX45A: available
UHX65A, UHX85A: not available

Diagnostics via PROFINET alarm

Yes

Yes, each axis is mapped via an individual process data slot during PROFINET configuration of the controller.