Prosoft-technology 5204SE-MNET-PDPMV1 Manuel d'utilisateur télécharger pdf (Page 118)

5204SE-MNET-PDPMV1 ♦ ProLinx Gateway Reference

Modbus TCP/IP to PROFIBUS DP-V1 Pass-Through Master User Manual

Page 118 of 235 ProSoft Technology, Inc.

December 22, 2009

DFB Acyclic Mailbox Message: Get Live List - M340

This acyclic message returns 127 bytes of information about the nodes on the

network. Each byte holds the node type for one bus subscriber (node or device).

The position of the byte in the response data corresponds to the address (0 to

125) of the node on the network. The content of each byte tells whether the node

is a Master or Slave (multiple PROFIBUS Masters may co-exist on the same

physical network).

This acyclic message can be sent in all operation modes (STOP, CLEAR, and

OPERATE), however the gateway must be initialized properly.

MNETDPV1_MAILVAR_GetLiveList Variables - M340

This variable structure is the one to use with your control and sequencing logic

when you want to request a list of PROFIBUS network nodes (bus subscribers).

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Prosoft-technology 5204SE-MNET-PDPMV1 Manuel d'utilisateur Page 118