Schneider Electric 890USE17700 manual Ethernet Communications and Connectivity

Introduction

Ethernet Communications and Connectivity

Introduction	The STB NIP 2212 allows the Advantys STB island to function as a node on an
	Ethernet local area network (LAN).
	Ethernet is an open local (communications) network that enables the interconnec-
	tivity of all levels of manufacturing operations from the plant’s office to the sensors
	and actuators on its floor.
Conformance	The STB NIP 2212 is located on a 10Base-T LAN. The 10Base-T standard is
	defined by the IEEE 802.3 Ethernet specification. Contention for 10Base-T networks
	is resolved by using Carrier Sense Multiple Access with Collision Detect (CSMA/
	CD).
Transmission	An STB NIP 2212 island node resides on a baseband network with a transmission
Rate	rate of 10 Mbit/s.
Frame Format	The STB NIP 2212 supports both Ethernet II and IEEE 802.3 frame formats;
	Ethernet II is the default frame type.
Modbus over	The STB NIP 2212 limits the number of Modbus client connections to 32. If a request
TCP/IP	for a new connection is received and the number of existing connections is at the
Connection	limit, the oldest unused connection is closed.
Management

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