Hotw to Setting the PG/PC Interface

    How to configure the communication between the PG/PC and the PLC? During
installation, you are displayed a dialog for assigning parameters to the PG/PC
interface. You can also open this dialog box after installation, by calling the
program ”Setting PG/PC Interface" in the STEP 7 program group. This enables you
to modify the interface parameters at a later time, independently of the installation.
Basic Procedure



To operate an interface, you will require the following:
• Configurations in the operating system
• A suitable interface configuration
If you are using a PC with an MPI card or communications processors (CP), you
should check the interrupt and address assignments in the Windows "Control
Panel" to ensure that there are no interrupt conflicts and no address areas overlap.
In Windows 2000 and Windows XP, the ISA component MPI-ISA card is no longer
supported and therefore no longer offered for installation.
In order to make it easier to assign parameters to the programming device/PC
interface, a dialog box will display a selection list of default basic parameter sets
(interface configurations).
Assigning Parameters to the PG/PC Interface
Procedure (Detail are found in the Online Help):
1. Double-click on ”Setting PG/PC Interface" in the ”Control Panel" of Windows.
2. Set the ”Access Point of Application" to ”S7ONLINE."
3. In the list "Interface parameter set used", select the required interface
parameter set. If the required interface parameter set is not displayed, you
must first install a module or protocol via the ”Select" button. The interface
parameter set is then generated automatically. On plug-and-play systems, you
can not install plug and play CPs manually (CP 5611 and CP 5511). They are
integrated automatically in "Setting PG/PC Interface“ after you have installed
the hardware in your PG/PC.
- If you select an interface which is capable of automatic recognition of
bus parameters (for example, CP 5611 (Auto)), you can connect the
programming device or the PC to the MPI or PROFIBUS without having to
set bus parameters. If the transmission rate is < 187.5 Kbps, there may be
a delay of up to one minute while the bus parameters are read.
Requirement for automatic recognition: Masters who broadcast bus
parameters cyclically are connected to the bus. All new MPI components
do this; for PROFIBUS subnets the cyclic broadcast of bus parameters
must be enabled (default PROFIBUS network setting).
4. If you select an interface which does not automatically recognize the bus
parameters, you can display the properties and adapt them to match the
subnet.

Changes will also be necessary if conflicts with other settings arise (for example,
interrupt or address assignments). In this case, make the appropriate changes with
the hardware recognition and Control Panel in Windows (see below).

No comments :

Post a Comment

Note: Only a member of this blog may post a comment.

Enter your email address:

Delivered by FeedBurner