Quantum EIO System Components

Introduction

This topic discusses the various components that comprise a Quantum EIO system. Connecting the Quantum to remote I/O devices in a Quantum EIO system is known as the . This topic discusses the 3 types of devices within a remote I/O main ring: a local rack, , and ConneXium extended managed switches, pre-configured as dual-ring switches (). You can connect to the main ring via DRSs, and they also enable to connect to the remote I/O network. The system also allows connection to a via a 140NOC78100 head module on the local rack.

Local Rack

Within the main ring in a Quantum EIO system, a local rack is a Quantum rack containing the controller, a power supply, one 140CRP31200 remote I/O head module, a maximum of 6 communication modules, and appropriate I/O modules. A 140CRP31200 module is not considered a communication module. You can install a maximum of five 140NOC78000 distributed I/O head modules and one 140NOC78100 control head module.

NOTE:

While the 140 NOC 78• 00 head modules are designed specifically for a Quantum EIO system, you can use 140 NOE 771 ••, 140 NOC 771 ••, and 140 NOM 2•2 00 modules to mange Ethernet distributed I/O and/or Modbus Plus systems. These modules may have performance restrictions that the 140 NOC 78• 00 modules do not have in a Quantum EIO system. For example:

Only one 140 NOE 771 •• module may participate in the remote I/O network.
You cannot connect a 140 NOC 771 •• to a 140CRP31200 head module on the local rack.
140 NOC 771 •• modules are supported only in standalone systems; they are not supported in Hot Standby systems.

NOTE: 140 CRP 93• 00 head modules may be installed on the local rack to manage legacy (S908) remote I/O drops. These drops are isolated from the Ethernet remote I/O network.

A local rack consists of 1 or 2 racks — the main rack and the extended rack. A main rack is required in the Quantum EIO architecture; an extended rack is optional, and when it is present, it is considered part of the local rack.

The graphic below is an example of a Quantum EIO local rack with an extended rack.

main local rack

extended local rack

Remote I/O Drops

A remote I/O drop is a remote Quantum or Modicon X80 rack of I/O modules (also contains a power supply and a •••CRA312•0 adapter module) that is connected to an Ethernet remote I/O network.

The 140CRA31200 adapter module is installed on Quantum drops.
The BMXCRA312•0 adapter module is installed on Modicon X80 drops.

Remote I/O drops are connected to the Ethernet remote I/O network in the following ways:

on the main ring — connected via copper cable to the 140CRP31200 head module on the local rack or to another remote I/O drop (which may be connected to another remote I/O drop or the 140CRP31200 head module on the local rack)
on a sub-ring — connected via copper cable to a DRS located on the main ring

A remote I/O drop consists of 1 or 2 remote racks — the main rack (containing the •••CRA312•0 adapter module) and an optional extended rack. (The BMXCRA31200 adapter module supports only 1 rack.)

A maximum of 31 remote I/O drops can be supported in a Quantum EIO network.

The graphic below shows a remote I/O drop (with an extended remote rack) connected to a local rack (with an extended local rack):

main local rack

extended local rack

main remote rack

extended remote rack

Legacy (S908) Remote I/O Drops:

You can install a legacy (S908) Quantum 140 CRP 93• 00 remote I/O head module on the local rack to support legacy (S908) remote I/O drops — 800 series I/O drops, SY/MAX drops, or Quantum remote I/O drops. Legacy (S908) remote I/O drops are not part of a Quantum EIO network.

trunk cable

trunk terminator

drop cable

Dual-Ring Switches (DRSs)

A ConneXium extended managed switch that has been configured to operate on a Quantum EIO network is called a dual-ring switch (). DRS predefined configurations provided by Schneider Electric can be downloaded to a ConneXium extended managed switch to support the special features of the main ring / sub-ring architecture. A switch with one of these DRS predefined configurations is one of the 4 types of Quantum EIO devices.

A DRS can be used to:

enable the use of fiber cable for distances greater than 100 m between 2 contiguous remote devices (You can also use 140 NRP 312 00/01 or BMX NRP 0200/01 fiber converter modules for this purpose.)
enable distributed I/O devices to participate on the remote I/O network
enable RSTP recovery support for devices and cables on the sub-rings
isolate the sub-rings from one another and from the main ring to improve system performance

This is a simple view of a DRS connecting a remote I/O sub-ring to the main ring.

local rack (including the 140CRP31200 head module)

DRS

remote I/O sub-ring (connecting remote I/O drops, including 140CRA31200 adapter modules)

main ring

Main Ring / Sub-ring Redundant Connections

Use 2 DRSs — one installed with a master predefined configuration and other installed with a corresponding slave predefined configuration — to provide a redundant connection between the main ring and the sub-ring. The master DRS passes data between the main ring and the sub-ring. If the master DRS becomes inoperable, the slave DRSs takes control and passes data between the main ring and the sub-ring. For details, refer to the Predefined Configuration Files chapter.

The following illustration is an example of main-ring/sub-ring DRS redundant connections in a Quantum EIO network:

C7

DRS using the C7 predefined configuration file for a master copper remote I/O main ring with a remote I/O sub-ring and distributed I/O clouds

C8

DRS using the C8 predefined configuration file for a slave copper remote I/O main ring with a remote I/O sub-ring and distributed I/O clouds

140CRP31200 remote I/O head module on local rack

140NOC78000 distributed I/O head module connected to the 140CRP31200 module to support the distributed I/O clouds (4)

remote I/O sub-ring (with a 140CRA31200 adapter module on each remote I/O drop)

distributed I/O clouds

DRSs are discussed in detail later in this guide.

Fiber Converter Modules

You can install a 140 NRP 312 00/01 fiber converter module on a Quantum local rack and Quantum Ethernet remote I/O drops to convert copper cable to fiber for distances greater than 100 m. You can also install a BMX NRP 0200/01 module on X80 remote I/O drops for the same purpose.

NOTE: You cannot use these modules to connect remote I/O or distributed I/O sub-rings to the main ring.

For details, refer to the Fiber Converter Modules topic.

Distributed I/O Devices

In a Quantum EIO system, can be:

Connected to the Ethernet remote I/O network. A 140CRP31200 remote I/O head module is connected to a 140NOC78000 distributed I/O head module on the local rack — since the distributed I/O devices are controlled by the 140NOC78000 module — to create a device network. The distributed I/O devices are connected via a DRS located on the main ring. Special types of distributed I/O devices that have 2 Ethernet ports and support RSTP may be connected directly to a sub-ring. Many types of distributed I/O devices may be connected to the DRS as distributed I/O clouds.

(Refer to the distributed I/O clouds topic to see the graphic showing the 140 CRP 00 head module connected to a 140 NOC 780 00 head module on the local rack to support distributed I/O devices.)

You can also connect distributed I/O devices that are part of an existing distributed I/O network to the Quantum EIO system.
- extended distributed I/O network: Connect the 140NOC78000 module to the existing distributed I/O network as well as the extend port of a 140NOC78100 module so that the distributed I/O devices can communicate with the Quantum EIO control network. Connect the interlink ports of the 140NOC78000 module and the 140CRP31200 module so that the distributed I/O devices are a physical part of the device network.
Not connected to the Ethernet remote I/O network. The devices are connected directly to a 140NOC78000 head module on the local rack as distributed I/O clouds, consisting of devices such as TeSys T motor drives, islands of STB devices, SCADA and HMI devices, and PCs. If you use a device that has 2 Ethernet ports and supports RSTP, you can connect the device in a star or a daisy chain loop In this instance, these distributed I/O devices are isolated and are not a physical part of the Ethernet remote I/O network.
- independent distributed I/O network: Connect the 140NOC78000 module to the existing distributed I/O network as well as the 140NOC78100 module. Do not connect these 2 modules to the 140CRP31200 module. The distributed I/O devices are not a physical part of the Quantum EIO device network, but they do communicate with the control network.
(Refer to the distributed I/O clouds topic to see the graphic showing the 140 CRP 00 head module not connected to the 140 NOC 780 00 head module on the local rack, where there are no distributed I/O devices physically connected to the Ethernet remote I/O network.)

NOTE: Distributed I/O devices can be connected to the Quantum EIO network via DRSs or via the service ports on the 140CRP31200 head module, the 140CRA31200 adapter module, or the BMXCRA31210 adapter module. They cannot be connected directly to the main remote I/O ring.

NOTE: Do not connect a device with a speed in excess of 100 Mbps to the service port. If the device is configured for a speed that exceeds 100 Mbps, the Ethernet link may not be established between the device and the module through the service port.

The maximum load the network can process from distributed I/O devices is:

5 Mbps per DRS port or service port
20 Mbps for distributed I/O traffic on the main ring

Example of a Distributed I/O Device:

Shown throughout this documentation is an Advantys STB island. When an STB island is used with an STB NIP 2311 network interface module (NIM), the island can be connected directly to a distributed I/O sub-ring. The STB NIP 2311 NIM has 2 Ethernet ports and it supports RSTP, making it able to operate on a sub-ring.

STB NIP 2311 NIM

STB PDT 3100 (24 VDC power distribution module)

STB DDI 3230 24 VDC (2-channel digital input module)

STB DDO 3200 24 VDC (2-channel digital output module)

STB DDI 3420 24 VDC (4-channel digital input module)

STB DDO 3410 24 VDC (4-channel digital output module)

STB DDI 3610 24 VDC (6-channel digital input module)

STB DDO 3600 24 VDC (6-channel digital output module)

STB AVI 1270 +/-10 VDC (2-channel analog input module)

STB AVO 1250 +/-10 VDC (2-channel analog output module)

STB XMP 1100 (island bus termination plate)

Distributed I/O Clouds

A distributed I/O cloud is a group of distributed I/O devices that are not required to support . Distributed I/O clouds require only a single (non-ring) copper wire connection. They can be connected to some of the copper ports on DRSs, or they can be connected directly to 140 NOC 78• 00 modules in the local rack. Distributed I/O clouds cannot be connected to sub-rings.

When a distributed I/O cloud is connected to a DIO cloud port on a DRS (or the service ports on the 140CRP31200 remote I/O head module or the •••CRA312•0 remote I/O adapter module) in the main ring, the distributed I/O devices within the cloud are a physical part of the Quantum EIO network.

In this instance, connect the 140CRP31200 head module to a 140NOC78000 head module in the local rack, since the 140NOC78000 module manages the distributed I/O devices.

140CRP31200 remote I/O head module

140NOC78000 distributed I/O head module

DRS

distributed I/O cloud

remote I/O drop

main ring

When a distributed I/O cloud is connected directly to a 140 NOC 78• 00 module, the distributed I/O devices are isolated from the remote I/O network if the 140 NOC 78• 00 module is not connected to another head module on the local rack.

140CRP31200 remote I/O head module

140NOC78000 distributed I/O head modules

distributed I/O clouds

Distributed I/O clouds contain either a single device or several devices designed in star, mesh, or daisy chain topologies. The example below shows a distributed I/O cloud with daisy-chained devices.

Sub-rings

Sub-rings are connected to the main ring via DRSs. There are 2 types of sub-rings — remote I/O sub-rings and distributed I/O sub-rings.

Remote I/O sub-rings contain only remote I/O devices, including one •••CRA312•0 adapter module on each remote I/O drop. A maximum of 31 remote I/O drops can be supported in a Quantum EIO network.
Distributed I/O sub-rings contain only distributed I/O devices that have 2 Ethernet ports and support RSTP. A maximum of 128 distributed I/O devices can be supported by all distributed I/O sub-rings.

NOTE: You cannot combine remote I/O devices and distributed I/O devices in the same sub-ring.

The graphic below shows a remote I/O sub-ring (5) and a distributed I/O sub-ring (8).

140CRP31200 remote I/O head module

140NOC78000 distributed I/O head module

remote I/O drop

DRS connected to remote I/O sub-ring

remote I/O sub-ring

DRS connected to distributed I/O sub-ring

distributed I/O devices (STB NIP 2311 NIM on an STB island)

distributed I/O sub-ring

Copper and Fiber Cables

Copper and fiber cable types and maximum distances for remote I/O devices are discussed in the cable installation topic in the respective Quantum Ethernet I/O head module user guide.

Calculating Maximum Devices for a Remote I/O Network

The main ring in a Quantum EIO system supports up to 32 devices. The 4 types of valid devices are:

a local rack (containing communication modules, remote I/O modules and distributed devices)
a maximum of 31 remote I/O drops (each drop containing a •••CRA312•0 adapter module)
DRSs, each of which should be counted as 2 devices when you are doing your main ring capacity calculations

NOTE:

Do not count 140 NRP 312 00/01 or BMX NRP 0200/01 fiber converter modules as devices in your calculation.
The maximum number of •••CRA312•0 adapter modules in a remote I/O network is 31.
For the maximum number of modules supported in a Quantum EIO system, refer to the communication capability and throughput considerations topics.

Remote I/O Network Topologies

In a Quantum EIO system, remote I/O devices are connected in a daisy chain loop topology. The remote I/O network utilizes the following 2 types of loop topologies:

Topology Type	Definition	Example
simple daisy chain loop	A simple daisy chain loop consists of a local rack (containing a 140CRP31200 head module), and one or more Quantum or Modicon X80 remote I/O drops (each drop containing a •••CRA312•0 adapter module). No sub-rings are allowed.	1 140CRP31200 remote I/O head module on the local rack 2 BMXCRA312•0 adapter module on a Modicon X80 Ethernet remote I/O drop 3 140CRA31200 adapter module on a Quantum Ethernet remote I/O drop
high-capacity daisy chain loop	A high-capacity daisy chain loop uses DRSs to connect sub-rings (remote I/O or distributed I/O) and/or distributed I/O clouds to the remote I/O network.	1 140CRP31200 remote I/O head module on the local rack 2 140NOC78000 distributed I/O head module (connected to the 140CRP31200 module to manage the STB distributed I/O sub-ring) 3 STB distributed I/O sub-ring 4 DRS (connected to an STB distributed I/O sub-ring) 5 DRS (connected to a distributed I/O cloud) 6 distributed I/O cloud (managed by the 140NOC78000 module in the local rack) 7 remote I/O drop (including a 140CRA31200 adapter module) on the main ring 8 DRS (connected to a remote I/O sub-ring)

NOTE: Diagrams and details of each topology are shown in the Selecting a Topology topic.

Remote I/O Main and Sub-Ring Design Examples

Given the considerations set forth above, with respect to remote I/O main and sub-rings, you could construct a Quantum EIO network in the following designs, to deploy the maximum number of remote I/O devices.

Design 1:

a main ring with:
- 1 – 140CRP31200 head module
- 31 – •••CRA312•0 adapter modules in remote I/O drops
no remote I/O sub-rings

Design 2:

a main ring with:
- 1 – 140CRP31200 head module
- 11 – •••CRA312•0 adapter modules in remote I/O drops
- 5 – DRSs, each supporting a remote I/O sub-ring (each sub-ring supporting two •••CRA312•0 adapter modules in remote I/O drops

Distributed I/O Network Topologies

Topology Type	Definition	Example
star	In a star topology, all single-port Ethernet devices are connected through an intermediate device, such as a DRS.
ring (loop)	In a ring topology (also known as a daisy chain loop), dual-port Ethernet devices that support RSTP are connected in a ring. With a ring topology, network redundancy is achieved. A DRS is required in this topology. NOTE: Single-port Ethernet devices can connect to the Quantum EIO network via a DRS, but they are not part of the ring.
mesh	In a mesh topology, single-port Ethernet devices are connected to each other through intermediate devices, such as a ConneXium extended managed switch (not required to be configured as a DRS). With a mesh topology, network redundancy is possible.

Device Network

A device network is an Ethernet remote I/O network where distributed I/O devices can participate with remote I/O devices.

In this type of network, remote I/O traffic has the highest priority on the network, so it is delivered ahead of distributed I/O traffic, providing remote I/O exchanges.

The device network contains a local rack, remote I/O drops, distributed I/O devices, DRSs, adapter class devices, etc. Devices connected to this network follow certain rules to provide remote I/O . Details about determinism are discussed in the Application Response Time chapter.

Control Network

A control network is an Ethernet-based network containing PLCs, SCADA systems, an NTP server, PCs, AMS system, switches, etc. Two kinds of topologies are supported:

flat — All the devices in this network belong to same subnet.
2 levels — The network is split into an operation network and an inter-controller network. These 2 networks can be physically independent, but are generally linked by a routing device.

The 140NOC78100 control head module is installed on the local rack of a Quantum EIO system. The module provides the interfaces to communicate with a control network and client applications on an Ethernet remote I/O network.

The main purpose of the 140NOC78100 module is to provide transparency between the control network, the device network, and an extended distributed I/O network, while preserving device network determinism. In addition, the 140NOC78100 module also provides services to communicate with PLC applications running on the control network.

Only one 140NOC78100 module can be configured on the local rack. To communicate with remote I/O devices on a remote I/O network, connect the 140NOC78100 module to the interlink port of the 140CRP31200 remote I/O head module (or a 140NOC78000 distributed I/O head module that is connected to the interlink port of the 140CRP31200 module) on the local rack.

To communicate with remote I/O or distributed I/O devices on the device network, connect the 140NOC78100 module to the interlink port of 140NOC78000 module or the 140CRP31200 module.
To communicate with devices on an extended distributed I/O network, connect the interlink port of the 140NOC78000 module to the extended port of the 140NOC78100 module.