Schneider Electric Processor Adapter manual Networks, Supervisory, Combined, Handling, Concurrent

Using the Ethernet Port

Network Design Considerations, Continued

I/O Networks	In an Ethernet I/O network architecture, an M1 Processor Adapter is used to control
	Momentum I/O points equipped with an Ethernet Communication Adapter or other
	Modbus over TCP/IP Ethernet-aware devices. Communication between these
	devices should be isolated not only from MIS data traffic, but also from unrelated
	communication between other control devices.
	You may isolate communication by creating a separate network or by using
	switches.
Supervisory
	In a supervisory architecture, several intelligent processing devices share system
Networks	data with each other. Many kinds of devices may be part of the network. You should
	be aware of each device’s requirement for access to the network and of the impact
	each device will have on the timing of your network communication.
Combined
	If your system requires both supervisory and I/O handling architectures, one
Supervisory and	solution is to use the I/OBus capabilities of the 171 CCC 960 20 Processor Adapter
I/O Handling	for the I/O network and the Ethernet capabilities for the supervisory network.
	If you intend to use Ethernet to handle both functions, use switches to isolate the
	network traffic and supply additional buffering of network packets.
Concurrent
	A maximum of 96 devices may be communicating with the Processor Adapter via
Communication	the Ethernet at any one time. This 96-device limit consists of:
	λ up to 2 programming panels (one must be in monitor mode)
	λ up to 14 general purpose Modbus server paths
	λ up to 16 MSTR elements which support Modbus read, write or read/write
	commands
	λ up to 64 cyclic configured data slave paths
	Continued on next page

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