GARANTIZAR LA PROTECCIÓN DE LOS DERECHOS FUNDA- FUNDA-MENTALES

The menu command can only be activated if the module can be monitored or modified (modules of the type DI, DO, AI, or AO, for example).

A dialog box will open displaying the inputs and outputs of the module in a table (Address column).

The inputs and outputs will be displayed in binary format for digital modules and in word format for analog modules.

Configuring Central Racks

Monitor

1. Activate the Monitor check box.

2. Click on the Trigger button to modify or change the trigger point and trigger frequencies. You will find information about the settings in the Help of the Trigger dialog box that appears when you click on the button.

3. If you want to monitor peripheral inputs directly, activate the I/O Display check box; if the check box is not activated, the process image of the inputs is monitored.

4. If you choose the trigger frequency Once, you must update the display in the Status Value column by means of the Status Values button. The value remains

"frozen" until you click again on the Status Value button.

Modify

With a defined trigger:

1. Enter the modify values in the table.

2. Click on the "Trigger" button to check or change the trigger point or trigger condition.

You will find information about the settings in the Help of the "Trigger" dialog box that is displayed when you click the button.

3. Select the "Modify" check box. All visible addresses with a modify value will be modified.

Modifying variables once:

Regardless of the trigger point or trigger condition set, you can also assign values to variables once in a separate operation. When the function is activated, an action like "Trigger immediately" is carried out, without reference to a specific point in the user program.

1. Enter the modify values in the table.

2. Click the "Modify values" button.

• If you want to modify peripheral outputs directly, activate the I/O Display check box; if the check box is not activated, the process image of the outputs is controlled.

• If you also want to modify outputs directly in STOP mode of the CPU, you must activate the Enable PQ check box. Otherwise, the outputs remain set in STOP mode, and they have a configured substitute value.

Configuring Central Racks

Monitoring and Modifying I/O Modules

When monitoring an I/O module (for example, 8DI/8DO), note that the trigger applies to the entire module.

If, for example, you set the trigger point for monitoring to "Cycle Start", the inputs as well as the outputs are modified at that time. In this case, the control values for the inputs are activated, because they overwrite the process image of the inputs after the process image of the inputs has been updated; this means, directly before the cyclic program processing of the input process images was started. In this case, the values for the outputs are overwritten by the user program.

Monitoring and Modifying Distributed I/Os

Distributed I/Os can be read consistently with the SFC 14 "DPRD_DAT" and can be written consistently with the SFC 15 "DPWR_DAT". In order to access the actual status or values when monitoring, you must note the following:

The "RECORD" input parameter of the SFCs has to be provided with "I" (input) or

"O" (output). This must be exactly the configured address area which is displayed in the configuration table of the DP slave in the "I address" or "O address" column.

If different areas are selected for saving the consistent data, non-relevant areas of the process image are displayed in the table for monitoring.

Configuring Central Racks

2.3.12 Configuring Point-to-Point CPs

Introduction to Configuring Point-to-Point CPs (PtP CPs)

As with other modules, you drag communication processors from the Hardware Catalog window and arrange them and assign parameters to them in the configuration table (General Settings, Addresses and Basic Parameters).

You can start the optional software for setting the procedure parameters by means of the Parameters interface in the Basic Parameters tab.

For PtP CPs in a SIMATIC 400 station, you have to configure PtP connections. The following section describes the procedure briefly. You can find a more detailed description in the manuals for the PtP CPs.

Configuring Connections for S7-400 PtP CPs

For the connection between an S7 CPU and a partner that is connected by means of a point-to-point interface, the PtP CP represents the link.

You must configure connections between the S7-400 CPU and the PtP CP.

Proceed as follows:

1. In HW Config, configure the PtP CP and, if the connection partner is also a PtP CP in an S7-400 station, configure the partner station also.

2. Start NetPro (from HW Config: menu command Options > Configure Network).

3. If you have already created a PtP subnet while you were configuring the PtP CP and you have networked the CP, continue with step 4;

otherwise, insert a PtP subnet and use it to network the CP.

4. Select the connection partner:

- The connection partner is a CP 34x (PtP CP in an S7-300 station), an S5 CP PtP, a printer, or a device from another manufacturer:

Configure an "Other Station" as connection partner. For the "Other Station," configure a PtP interface and network this interface with the PtP subnet that you created.

- The connection partner is a PtP CP for a SIMATIC 400 station:

You have already configured the connection partner in step 1 and so you can continue with step 5.

Configuring Central Racks

2.3.13 Configuring S5 Modules

You can insert S5 modules in a SIMATIC 400 station. These modules are connected via:

• An S5 adapter module (IM 470) or

• An IM 463-2 for connecting S5 expansion devices with IM 314

You can find these modules in the "Hardware Catalog" window under "IM 400."

Note

You must configure the input or output address areas of the S5 modules for each connection. (Double-click the adapter module or IM 463-2 and then select the

"Input Addresses" or "Output Addresses" tab.)

If the address areas are not configured, the modules mentioned above will not be saved in the system data blocks (SDB). Result: The configuration which was downloaded to the CPU will not contain information about these modules. If this configuration is uploaded to the programming device, these modules will not appear in the configuration table.

Configuring Central Racks

2.4 Expanding the Central Rack with Expansion Racks

Configuring Expansion Racks in SIMATIC 300

For SIMATIC 300 stations, only "Rails" are available as central racks and as expansion racks; this means you can position as many rails (max. 4) as there are in the actual configuration.

Expansion racks are linked in STEP 7 by inserting the appropriate interface module in slot 3 of every rack.

• To expand the configuration by one rack:

racks 0 and 1: IM 365

• To expand the configuration by up to three racks:

rack 0: IM 360; racks 1 to 3: IM 361

Configuring Expansion Racks in SIMATIC 400

In SIMATIC 400, the possibilities for expansion are more complex owing to the different racks and interface modules.

All expansion racks that are connected to an interface of the send IM on the central rack form a cascade.

In the following figure, three expansion racks are connected to each interface of the send IM.

Configuring Central Racks

2.4.1 Rules for Connecting Expansion Racks (SIMATIC 400)

If you connect expansion racks (SIMATIC 400) to an interface module (send IM) of the central rack, then the following characteristics for the send IM and the receive IM must match:

• Power transfer (with/without)

• Type of link (centralized/distributed)

• Communication bus transmission (with/without interrupt transmission).

2.4.2 Arranging the Expansion Rack (SIMATIC 400)

Procedure

1. Select the appropriate (expansion) racks from the "Hardware Catalog" window.

2. Drag the racks to the station window one by one.

3. If you wish to change the number of the rack:

Double-click the second row of the rack in the upper half of the station window.

You can change the number in the "General" tab for the rack.

4. Assign modules to the racks.

Important: To permit the racks to be connected to each other, the interface modules must be inserted in all racks.

5. For S7-400 only: make the connections between the interface modules in the