140NOC78000 Module Description
Original instructions
Introduction
140NOC78000 distributed I/O head modules are installed on the local rack of a Quantum EIO system. They provide the interfaces to communicate with distributed I/O devices and client applications on an Ethernet remote I/O network.
Functionality
The main purpose of the 140NOC78000 module is to provide I/O scanning services to distributed I/O devices on the device network and distributed I/O network. In addition, the 140NOC78000 module (when interlinked with the 140NOC78100 control head module) provides services to communicate with PLC applications running on the control network.
You can configure a maximum of six 140NOC78000 modules on the local rack. If you configure a 140NOC78100 module on the local rack to manage a control network, you can only configure five 140NOC78000 modules on the local rack.
To communicate with...
Interlink the 140NOC78000 module with...
distributed I/O devices on a device network
the 140CRP31200 module
NOTE: You may interlink the 140NOC78000 module with up to 2 additional 140NOC78000 modules on the local rack.
distributed I/O devices on an isolated distributed I/O network
other 140NOC78000 modules only on the local rack
distributed I/O devices on an independent distributed I/O network
the 140NOC78100 module
NOTE: Neither the 140NOC78000 nor the 140NOC78100 modules can be interlinked with the 140CRP31200 module on the local rack.
NOTE: You may interlink the 140NOC78000 module with up to 2 additional 140NOC78000 modules on the local rack.
distributed I/O devices on an extended distributed I/O network
  • the 140CRP31200 module
    – and –
  • the 140NOC78100 module (when the IP forwarding service is configured)
NOTE: You may interlink the 140NOC78000 module with up to 2 additional 140NOC78000 modules on the local rack.
the control network
the 140NOC78100 module
External Features
140NOC78000:
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 140NOC78000 module monitors the functionality of network links depending on which links are connected to the network. The module has 4 external ports (but only 1 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:
  • If the device, which is connected to the service port, 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.
  • You can configure the SERVICE port either online or offline.
  • In port mirroring mode, the SERVICE port acts like a read-only port. That is, you cannot access devices (ping, connect to Control Expert, etc.) through the SERVICE port.
INTERLINK
1
The INTERLINK port provides connectivity to other Quantum EIO head modules on the local rack.
DEVICE NETWORK
2
These 2 copper ports provide:
  • connections for distributed I/O communications
  • cable redundancy via the daisy chain loop architecture