Hardware manual

VPM Tools Impact Reference Guide
Datalogic Automation Inc. 3-38
• Modbus TCP/IP Event: The task is queued when the Modbus Server receives any Modbus Request
from a client.
• Modbus TCP/IP New Input Data Event: The task is queued when a Modbus Client writes data in a
Modbus Register using the Modbus Write Request function.
• AbPc3 Event: The task is queued when an AB PCCC client writes data in a PCCC server property
using the PCCC Typed Write command.
• OPC New Input Data Event: The task is queued when the OPC Server writes data in an OPC Data
Access system object input.
VPM Tools
VPM tools are divided by function within toolbox drawers. The tool icon helps you identify the tool within
the task tree and the drawer. Sometimes, in order to enhance a tool’s function or properties, the old version
of a tool is "deprecated" or made unavailable and replaced with a new version or a different tool.
Deprecated tools are displayed in yellow in the task tree. They will continue to function, but they do not
appear in the Toolbox and cannot be added to new Vision Program files. You can replace the older tool with
Input Name What it is
Function
Code
The function code of the Modbus client's request. These are stan-
dard Modus function codes. For example, Function Code 16 is a
Write Multiple Registers request and Function code 3 is a Read
Multiple Registers request.
Start
Address
The starting register in the Modbus Request sent by the Modbus
Client.
Count The number of registers the client accessed.
Input Name What it is
Function
Code
The function code sent by the Modbus Client.These are standard
Modus function codes. For example, Function Code 16 is a Write
Multiple Registers request and Function code 3 is a Read Multiple
Registers request.
Start
Address
The starting register in the Modbus Request sent by the Modbus
Client.
Count The number of registers the client accessed.
Input Name What it is
File Num-
ber
The file type number sent by the PCCC client. See “How VPM
Works With AB PCCC” on page 2-41 for file type numbers.
Start
Address
The starting server property index in the Typed Write command
sent by the PCCC client.
Count The number of indexes the client accessed.
Input Name What it is
InputName When data is written to this input, the task is queued. The value
contains the name of the OPC Data Access property that changed.
See “OPC Data Access” on page 2-42.