Configuring Peer-to-Peer Communications

The
AADvance-Trusted SIS Workstation software®
provides the option of setting up a Peer-to-Peer network to enable communicating application data between AADvance and
Trusted®
systems. Each peer network supports communication with up to 40 AADvance or
Trusted
systems. Data can be transferred between individual systems or from one system to multiple systems by using multicast network communication.
TIP: The current version of the AADvance controller only supports two multicast IP addresses. A fixed address can be configured for each Ethernet port.
A Peer-to-Peer network consists of one or more Ethernet networks connecting together a series controllers to enable passing safety application data between them. Peer controllers only communicate with other peer controllers sharing the same network. Connect these types of controllers:
Trusted
controller
The controller has four communication interfaces with eight Ethernet ports. The Peer-to-Peer network can use all eight physical Ethernet networks, referred to as subnets, to provide redundant data paths via up to eight separate physical routes. The eight ports can be assigned to one or multiple peer networks.
To participate in peer communication, fit each
Trusted
system with a T812x processor interface adapter.
AADvance controller
The two network interfaces of the AADvance processor module can be used simultaneously for Peer-to-Peer communication. A triple modular redundant (TMR) controller with three processor modules provides a maximum of six physical connections that can be divided between the different peer networks or assigned to the same network.
A peer network consists of one or more subnets. Network subnets are assigned to the Ethernet ports of the processor. Each subnet is considered a physical network representing a redundant data path on the network. Subnets of the same redundant network should use different processor modules to achieve the highest level of hardware fault tolerance.
IMPORTANT: To use Peer-to-Peer communications on both ports of a processor, configure IP addresses with different subnets.
When configuring the AADvance controller to communicate with a
Trusted
Peer-to-Peer network, use the same parameters as a
Trusted
configuration.
TIP: The
AADvance-Trusted SIS Workstation software
also supports external communications using
Modbus®
over serial and Ethernet links. Performance may be affected when using both
Modbus
and Peer-to-Peer communications.
The information to transfer over the peer network is defined within the application data blocks. Configure data blocks of 16 or 128 digital points, 16 or 128 analog points, and the network status information.
To configure Peer-to-Peer communications, perform these tasks:
  • Create a Peer-to-Peer network
  • Configure the Subnet
  • Enter the peer IP address information
  • Define a Peer List
  • Configure the data blocks
  • Wire the status variables
  • Wire the data variables
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