Introduction

In the Control Expert Project Browser , double-click PLC Bus to display the main rack. Then click on the CPU (but not on the Ethernet connectors) to open the CPU configuration window.

Setting Global Addresses and Operating Mode Parameters

Click on the Configuration tab to edit the size and starting positions of inputs and outputs:

Step

Action

1

Double-click the image of the M580 CPU in the PLC Bus to view its properties.

2

Select the Configuration tab.

3

In the Operating mode area, select the boxes to enable the following parameters in your application:

4

Run/Stop input

Use these two parameters to place the PAC into Run or Stop mode. For more information regarding the effect of these parameters, refer to the topic Managing Run/Stop Input. (default = de-selected)

Run/Stop by input only

Memory protect

This function is activated by an input bit. It prohibits the transfer of a project into the PAC and modifications in online mode, regardless of the communication channel. The Run and Stop commands are authorized. (default = de-selected)

Automatic start in Run

The enabling of this option automatically places the PAC into RUN mode in the event of a cold start. (default = de-selected)

Initialize %MWi on cold start

On a cold start or on download if you select the box (default state):

  • The %MWi are handled like other global variables (initialized to 0 or initial value, according to current application) in all cold start cases.

On cold start or on download if you de-select the box:

  • If %MW were previously saved in internal flash memory (using the %SW96 word) they are restored from internal flash memory,

  • If not:

    • If cold start is linked to a power-off or of a push on the reset button, the %MW are initialized.

    • If not, the current values of %MW are maintained.

NOTE: if the new (or restored) application has more %MW than the previous one, the added %MW are set to 0 (non-zero initial values are not applied)

Cold Start Only

If selected, this option forces the cold start of the application, instead of the normal warm start. By default, the Cold Start Only option is unchecked. An application using this function is not:

  • Downloadable to a PAC with a previous version.

  • Executable on a PAC with a previous version.

5

The option Support Quantum remote drops is only available for BMEP584040, BMEP585040, BMEP586040, BMEH584040, and BMEH586040.

By default, this option is checked (allowing usage of Quantum remote drops) and the percentage of memory usage is displayed (bar graph).

NOTE: The limitation of state ram depends on the Quantum memory structure.

When unchecked, adding Quantum drops in the configuration is not allowed. Also, unchecking this option is not possible, if there is at least one Quantum drop in your configuration.

6

Configure the size of the memory locations in the Size of global address fields.

NOTE: High end standalone and Hot Standby CPUs (BMEP584040, BMEP585040, BMEP586040, BMEH584040 and BMEH586040) include State RAM memory management for Quantum Ethernet RIO drops. The State RAM feature supports LL984 logic sections for converted LL984 applications.

The following memory management options are presented in the Configuration tab:

Mem usage

The percentage of CPU memory usage (bar graph), based on the cumulative values input into the %M, %MW, %I, and %IW fields, below. (Supported only by high end standalone and Hot Standby CPUs that support State RAM. For these CPUs, the option Support Quantum remote drops has to be checked previously).

NOTE: Input values so that the percentage of CPU memory usage does not exceed 100%.

%M-0x

Enter the appropriate value for each address field type. (%I and %IW are supported only by high end standalone and Hot Standby CPUs that support State RAM.)

NOTE: The values for %IW and %MW, have to be divisible by 8 for version before 2.30 and divisible by 128 for other versions. The value for %KW have to be divisible by 8 for all versions.

%MW-4x

%I-1x

%IW-3x

%KW

Viewer

Opens the State RAM Viewer, which displays the allocation of used memory.
NOTE: To input:

  • Maximum values: Click the Maximum values button, select the appropriate boxes in the Max column, then click OK.

  • Default values: Click the Default values button, select the appropriate boxes in the Default column, then click OK.

NOTE: M580 / S908 applications:

In M580 CPUs that are compatible with Quantum S908 network adapter and an OS version ≥ 02.30: (number of %I + number of %M) ≤ 65535. The maximum number of %I is 65280. The maximum number of %M is 65280.

7

Select the Online modification in RUN or STOP check box (in the Configuration Online Modification field) to use the change configuration on the fly (CCOTF) feature.

8

Select Edit > Validate (or click the toolbar button) to save the configuration.
NOTE:

  • After you validate module settings for the first time, you cannot edit the module name. If you subsequently decide to change the module name, delete the existing module from the configuration, then add and rename a replacement module.

  • In addition to the Configuration tab, described above, the CPU configuration window presents an I/O Objects tab, and an Animation tab with three sub-tabs: Task, Real-time Clock, and Information.

M580 State RAM without Quantum Remote Drop Configured

These tables gives the default and maximum values of memory objects for M580 CPU that do not support Quantum drops or if the option Support Quantum remote drops is not checked.

Reference

%M

%I

Limit for %M + %I

Default

Maximum

Default

Maximum

BMEP581020(H)

512

32634

512

32634

≤32634

BMEP582020(H)

512

32634

512

32634

≤32634

BMEP582040(H)

512

32634

512

32634

≤32634

BMEH582040(C)

512

32634

512

32634

≤32634

BMEP583020

512

32634

512

32634

≤32634

BMEP583040

512

32634

512

32634

≤32634

BMEP584020

512

32634

512

32634

≤32634

BMEP584040

512

65280

512

65280

≤65280

BMEH584040(C)

512

65280

512

65280

≤65280

BMEP585040(C)

512

65280

512

65280

≤65280

BMEP586040(C)

512

65280

512

65280

≤65280

BMEH586040(C)

512

65280

512

65280

≤65280

Reference

%MW

%IW

Limit for %MW + %IW

Default

Maximum

Default

Maximum

BMEP581020(H)

1024

32464

1024

32464

≤32464

BMEP582020(H)

1024

32464

1024

32464

≤32464

BMEP582040(H)

1024

32464

1024

32464

≤32464

BMEH582040(C)

1024

32464

1024

32464

≤32464

BMEP583020

2048

65232

2048

65232

≤65232

BMEP583040

2048

65232

2048

65232

≤65232

BMEP584020

2048

65232

2048

65232

≤65232

BMEP584040

2048

65232

2048

65232

≤65232

BMEH584040(C)

2048

65232

2048

65232

≤65232

BMEP585040(C)

2048

65232

2048

65232

≤65232

BMEP586040(C)

2048

65232

2048

65232

≤65232

BMEH586040(C)

2048

65232

2048

65232

≤65232

M580 State RAM with Quantum Remote Drops Configured

On M580 CPU SV 2.70 (or earlier), each %I and %M objects takes around 1 byte.

On M580 CPU SV 2.80 (or later) the space taken by each %I or %M is optimized and the state RAM can now be filled with a larger number of objects.

When Quantum Ethernet Remote drops are configured on M580 CPU SV 2.80 (or later), the total size of the state RAM is unchanged (128 Kbytes), but you can assign a larger number of %M and %I.

Example: with numbers of %IW = 12 000, %MW = 40 000, and %I = 25216, the maximum number of %M is 128 on CPU SV 2.70 while it is 40 064 on CPU SV 2.80.

Completing the Ethernet Network Configuration

After you configure these settings, configure the CPU settings beginning with its Channel Properties. Then configure the Ethernet network devices.