Examples Of Communications Using A Virtual C1 Module - GE VersaPoint IC220PBI002 User Manual

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Examples of Communications using a Virtual C1 Module

The same examples are used here as for DP/V1 services..
Example 1, Reading the Connected Local PCP Devices and Their Status
(Slot 0, Index 5 on the NIU)
Read request (master -> slave)
Data (4 Words VC1)
03 00 00 05 00 I 00 00 00
Read response (slave -> master)
Data (4 Words VC1)
83 00 03 03 01 00 I 00 00
Clear request (master -> slave)
Data (4 Words VC1)
00 xx xx xx xx xx xx xx
Clear response (slave -> master)
Data (4 Words VC1)
00 00 00 00 00 00 00 00
8-22 VersaPoint™ I/O System Profibus-DP NIU User's Manual – August 2005
Data Structure
Read/Slot/Index high/Index low/Subindex I 3 bytes
unused
Data Structure
Read response/Status/Actual length/3 bytes of object
data I 2 bytes unused
Data Structure
Clear
Data Structure
Clear response
GFK-1911B