Table of Contents
VPC 3+ Software Description
Revision 2.0 iii
Copyright © profichip GmbH 2001.
1 Table of Contents
1 Table of Contents ....................................................... iii
2 Introduction.................................................................. 1
2.1 PROFIBUS DP ...........................................................................3
2.2 PROFIBUS DPV1 .......................................................................3
2.3 PROFIBUS DPV2 .......................................................................4
2.4 How a PROFIBUS DP Slave Works............................................4
3 Initialization.................................................................. 9
3.1 Compilersettings .........................................................................9
3.2 Define Profibus Components ......................................................9
3.2.1 Profibus Services.............................................................9
3.2.2 General Slave Parameter ..............................................10
3.2.3 Buffer Initialization .........................................................11
3.2.4 Settings for MSAC_C1...................................................11
3.2.5 Settings for MSAC_C1 Alarm ........................................11
3.2.6 Settings for MSAC_C2 Service......................................12
3.2.7 Settings for Isochron Mode............................................12
3.2.8 Settings for DXB Publisher Mode ..................................12
3.2.9 Settings for DXB Subscriber Mode ................................13
3.2.10 Set Hardware Mode.......................................................13
3.3 Initializing the firmware..............................................................19
3.4 Starting VPC3 ...........................................................................20
3.5 Startup Telegram Sequence .....................................................21
4 General VPC3-DP Functions .................................... 23
4.1 Interrupt Indication Function......................................................23
4.1.1 Reading the Indication...................................................23
4.1.2 Acknowledging the Indication ........................................25
4.1.3 Ending the Indication .....................................................25
4.1.4 Polling the Indication .....................................................26
4.2 Parameter Data.........................................................................27
4.2.1 Checking the Parameter Data........................................27
4.2.2 Parameter Data Structure..............................................29
4.3 Configuration Data....................................................................32
4.3.1 Checking Configuration Data.........................................32
4.3.2 Configuration Data Formats...........................................34
4.4 Transfer of Output Data ............................................................36
4.5 Transfer of Input Data ...............................................................37
4.6 Diagnostic.................................................................................38
4.6.1 Transferring Diagnostic Data .........................................38
4.6.2 Structure of diagnostic block..........................................41
4.6.3 User specific diagnostic.................................................43
4.7 Changing the Slave Address.....................................................46
4.8 Global Control Commands........................................................47
4.9 Watchdog Timeout in DP-Control..............................................48
4.9.1 Leaving the Data Exchange State .................................49
4.10 VPC3_Reset (Go_Offline).........................................................49
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