Ethernet Port Connections - GE IC695PNC001 User Manual

2

Ethernet Port Connections

Each port on an RX3i PNC operates independently, so devices that operate at different speeds
and/or duplex modes may be attached to the ports. Each port automatically detects the attached
cable and functions properly with either straight-through or crossover cables.
Note: The PROFINET Controller operates only in autonegotiate mode. All PROFINET bus
devices and switches that are connected to the PROFINET Controller should be
configured to use autonegotiation.
PROFINET Network Connections
Connections to the PROFINET Controller can be made using standard cables. The PNC can be
connected to only one PROFINET network. However, different devices on the same LAN can be
connected via more than one port.
Note: Shielded cable is required for 1 Gbps operation.
Do not connect two or more ports on the PROFINET Controller to the same device, either directly or
indirectly, unless Media Redundancy is enabled in the PROFINET Controller's configuration. If
Media Redundancy will be used, do not close the network ring until after a Media Redundancy
configuration that contains one node as a Media Redundancy Manager (MRM) has been
downloaded to the PNC. If a Media Redundancy Manager is not present, packets can continuously
cycle on the network, preventing normal operation. See chapter 6 for more information about Media
Redundancy.
RJ-45 Port Connections
The PNC's RJ-45 ports can be used for PROFINET network connections or for general Ethernet
communications on a 10BaseT, 100BaseTX, or 1000Base-T IEEE 802.3 network. Typical switches,
hubs, or repeaters support 6 to 12 nodes connected in a star wiring topology.
10BaseT
: uses a twisted pair cable of up to 100 meters in length between a node and another
node, switch, hub, or repeater
Ethernet traffic, but not for PROFINET communications.
100BaseTX
: uses a cable of up to 100 meters in length between a node and another node, switch,
hub, or repeater The cable should be data grade Category 5 or better unshielded twisted pair (UTP)
.
or shielded twisted pair (STP)
1000BaseT
: uses a cable of up to 100 meters in length between a node and another node, switch,
hub, or repeater The cable should be data grade Category 5 or better shielded or unshielded.
.
PACSystems* RX3i PROFINET Controller Manual – December 2011
2-6
CAUTION
10Mbs may be used for the Command Line Interface and general
.
.
GFK-2571A