Siemens SIMATIC Box PC 620 Specifications download pdf (Page 52)

Distributed Component Object Model (DCOM)

A-2

Windows Automation Center WinAC Slot 412/WinAC Slot 416 Version 3.1

A5E00065531-03

A.1 Using DCOM to Expand the Capabilities of WinAC

You can run the components of WinAC on a standalone computer, as shown in

Figure A-1. In this model, this computer provides the complete control system.

PC 1

MPI =

MPI card

CPU 416-2 PCI

Siemens label control

Siemens edit control

Siemens slider control

Siemens S7 data control

DCOM

components

MPI server

WinLC

I/OI/O

Siemens button control

Third-party control

: cannot be operated simultaneously

Figure A-1 Using WinAC Components with DCOM on a Standalone Computer

You can also utilize Microsoft’s DCOM technology to create a network of

computers that cooperate to provide the control system for a machine or process.

Figure A-2 shows how one computer running an application that uses ActiveX

controls (from SIMATIC Computing) can use DCOM to communicate with a

different computer that uses WinLC (or other PLCs) to control a process.

The Windows NT operating system features a configuration tool (dcomcnfg) for

setting up your DCOM security. Use this tool to configure the server and client

computers.

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Siemens SIMATIC Box PC 620 Specifications Page 52