Introduction

The Quantum 140CRP31200 module is the remote I/O head module on the local rack of Quantum EIO installations. This module allows the PLC to connect to an Ethernet network and control remote I/O devices.

Functionality

The main purpose of the 140CRP31200 module is to provide I/O scanning services of remote I/O devices on either a remote I/O network or a device network, which contains remote I/O and distributed I/O devices. The module is directly connected to the remote I/O network main ring, and it manages the remote I/O network through a daisy chain loop topology. This module also provides various Ethernet services, such as configuration for remote I/O devices and diagnostics.

You can use these function blocks with the 140CRP31200 module:

Only one 140CRP31200 module can be configured on the local rack. This module has interfaces for communicating with Ethernet remote I/O devices on the network.

The 140CRP31200 module allows the PLC to connect to an Ethernet network and to have a deterministic I/O exchange with modules in the Ethernet remote I/O drops.

The 140CRP31200 module is dedicated to the management of remote I/O devices only. Other services of the 140CRP31200 module:

  • The module uses RSTP to enable all remote I/O devices on the main ring to recover from a communication disruption within 50 ms.

  • The module can configure IP parameters and the configurations for I/O modules on the drops for up to 31 remote I/O devices.

  • The module provides a communication path (through an interlink) to allow distributed I/O and control network traffic to participate on the remote I/O network.

  • The module supports Hot Standby functionality. The primary 140CRP31200 module and the standby 140CRP31200 module do not swap their IP addresses when a switchover occurs.

External Features

140CRP31200:

1 LED display

2 SERVICE port (ETH 1)

3 INTERLINK port (ETH 2)

4 DEVICE NETWORK port (ETH 3)

5 DEVICE NETWORK port (ETH 4)

NOTE: To help prevent dust from entering the unused Ethernet ports on this module, cover the port with the stopper:

External Ports

The 140CRP31200 module monitors the functionality of network links depending on which links are connected to the network. The module has 4 external ports (but a single IP address):

Port

Quantity

Description

SERVICE

1

The SERVICE port allows the diagnosis of Ethernet ports and provides access to external tools and devices (Control Expert, ConneXium Network Manager, HMI, etc.). The port supports these modes:

  • access port (default): This mode supports Ethernet communications.

  • port mirroring: In this mode, data traffic from one or more of the other 3 ports is copied to this port. This allows a connected tool to monitor and analyze the port traffic.

  • disabled

NOTE:

  • You can configure the SERVICE port either on line or off line.

  • In port mirroring mode, the SERVICE port acts like a read-only port. That is, you cannot access devices (ping, connection to Control Expert, etc.) through the SERVICE port.

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

  • 5 Mbps per dual-ring switch (DRS) port or service port

  • 20 Mbps for distributed I/O traffic on the main ring

Refer to the Service Port Configuration topic.

INTERLINK

1

The INTERLINK port provides connectivity to other Quantum EIO modules.

DEVICE NETWORK

2

These 2 copper ports provide:

  • connections for remote I/O communications

  • cable redundancy via the daisy chain loop architecture
NOTE: Do not connect a device with a speed in excess of 100 Mbps to any 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 port.