Planning a Device Network

Introduction

These are the advantages of a device network:

You can integrate remote I/O and distributed I/O devices within the same system.
You can integrate current and legacy (S908) devices from Schneider Electric, as well as third-party devices (which are connected through standard open interfaces).
You can provide transparency to your entire system.
Networks are simplified.
Costs are reduced.

A uses a ( and on the same physical network). Within a device network, you can add and .

connect distributed I/O devices on the device network. (You can also connect distributed I/O devices to the service port of a 140CRA31200 or BMXCRA31210 moudule.) This connection provides on the Ethernet remote I/O network. Download specific predefined configuration files to these dual-ring switches, which control the data flow from distributed I/O devices so that the high priority of the remote I/O network is maintained.

Installing a Device Network

To install a device network, which allows both remote I/O and distributed I/O on the same Ethernet remote I/O network, as well as Ethernet transparency between the control network (by configuring the IP forwarding service in the 140NOC78100 control head module) and the device network, perform the following steps:

Step	Action
1	Install one 140CRP31200 remote I/O head module, one 140NOC78100 control head module, and up to six 140NOC78000 distributed I/O head modules on the local rack, only three of which can be interlinked with the 140CRP31200 module and one which can be interlinked with the 140NOC78100 module to support a device network.
2	Connect the interlink port (ETH 2) of the 140NOC78000 module to the interlink port (ETH 2) of the 140CRP31200 module.
3	Connect the interlink port (ETH 2) of the 140NOC78100 module to the device network/interlink port (ETH 3) of the 140NOC78000 module.
4	Connect the start of the main ring to the device network port (ETH 3 or ETH 4) of the 140CRP31200 module.
5	Connect the end of the main ring to the device network port (ETH 3 or ETH 4) of the 140CRP31200 module.
6	Connect DRSs to the main ring for distributed I/O sub-rings and/or distributed I/O clouds. Refer to the Predefined Configurations File topic in the Quantum EIO System Planning Guide for details on installing DRSs and distributed I/O devices.
7	Connect the control network port (ETH 3 or ETH 4) of the 140NOC78100 module to the control network.

Example

The following graphic shows a 140CRP31200 remote I/O head module and a 140NOC78000 distributed I/O head module interlinked on the local rack to support a device network.

140CRP31200 remote I/O head module

140NOC78000 distributed I/O head module interlinked with the 140CRP31200 module to manage the device network

140NOC78100 control head module interlinked with the 140NOC78000 module to provide transparency between the device network and the control network

distributed I/O sub-ring

DRS with a predefined configuration file to support copper-to-fiber and fiber-to-copper transitions on the main ring

distributed I/O cloud

Ethernet remote I/O drop on the main ring

Ethernet remote I/O sub-ring

DRS connecting the remote I/O sub-ring to the main ring

control network

main ring