Introduction

Quantum PLCs offer a decentralized input/output architecture solution:

  • RIO field bus networks are based on the S908 input/output decentralization network technology. Up to 31 decentralized stations may be configured, with each station capable of supporting up to 128 input/output words.

  • DIO field bus networks are based on Modbus Plus technology. 32 subscribers may be configured over 500 meters/1640 feet (receiving 64 subscribers over 2000 meters/6560 feet).

Creating a RIO Bus

The following table describes the procedure for creating a RIO bus from a communication module:

Step

Action

1

In the bus editor, select the slot where you wish to insert the communication module.

2

Select New Device in the contextual menu.

Result: The New Device window appears.

3

Expand the Communication directory.

Result: The following window appears:

4

To create a RIO bus, select a 140 CRP 93x 00 module.

Result: The bus appears in the project browser:

Creating a DIO Bus

The following table describes the procedure for creating a DIO bus from a communication module:

Step

Action

1

In the bus editor, select the slot where you wish to insert the communication module.

2

Select New Device in the contextual menu.

Result: The New Device window appears.

3

Expand the Communication directory.

Result: The following window appears:

4

To create a bus, select a 140 NOM 2XX 00 module.

Result: The module appears in the rack.

5

Double-click the 140 NOM 2XX 00 module’s Modbus Plus port.

Result: The bus configuration window appears.

6

Check the box marked DIO Bus.

7

Confirm the configuration.

Result: The DIO bus appears in the project browser.

Creating a DIO Bus from the Processor

The following table describes the procedure for creating a DIO bus from the processor:

Step

Action

1

In the bus editor, double-click the processor’s Modbus Plus port.

2

Check the box marked DIO Bus.

3

Confirm the configuration.

Result: The DIO bus appears in the project browser:

Accessing a RIO or DIO Bus

To access a bus, carry out the following actions:

Step

Action

1

In the project browser, open the Configuration directory.

Example:

2

Select the RIO bus or DIO bus subdirectory depending on the type of bus you want to open. Next, select the Open command in the popup menu.

Result: The following window is displayed for the RIO bus:

Result: The following window is displayed for the DIO bus: