ProSoft Technology MVI46-PDPMV1 - Manual (Page 76)

Mailbox Messaging MVI46-PDPMV1 ♦ SLC Platform
User Manual PROFIBUS DPV1 Master
Page 76 of 160 ProSoft Technology, Inc.
March 25, 2011
4.2.5 Mailbox Message: Get Live List
This command returns 127 bytes of information about the nodes on the network.
Every byte stands for one bus subscriber, and the position of the byte in the
response data assigns the address (0 to 126), the content assigns the Station
Type.
This command can be sent in all operation modes (STOP, CLEAR, and
OPERATE), however the module must be initialized properly.
Parameter Description
Command Initiator Application
Command Name GET LIVE LIST
Command Number 1800h
Fragmented No
Extended Header Data Fault information may be returned in the header of the response.
Command and Response Layout: Get Live List
Command Response
Message ID (ID) (ID)
Message information 4002h 0002h
Command 0018h 0018h Get Live List
Data size 0000h 0007h 127 Bytes of Data
Frame count 0001h 0001h
Frame number 0001h 0001h
Offset high 0000h 0000h
Offset low 0000h 0000h
Extended word 1 - -
Extended word 2 - -
Extended word 3 - -
Extended word 4 - -
Extended word 5 - -
Extended word 6 - -
Extended word 7 - Return Code
Extended word 8 - Fault Information
Message Data byte 1 Station Type 0 Response Data Byte 1
Message Data byte 2 Station Type 1 Response Data Byte 1
Message Data byte 3 Station Type 2 Response Data Byte 1
... ... Response Data Byte 1
Message Data byte "n" Station Type 126 Response Data Byte 1