Design Guidelines
Transport System Design
QuickStick HT User Manual 79
Rockwell Automation Publication MMI-UM007F-EN-P - September 2020
Ethernet Motor Communication Recommendations
• Recommended Ethernet addressing scheme (see Figure 3-15):
Network.Path.Motor
• Network addresses are used for network configuration
• Path 0 addresses are used for Subnet configuration:
x.y.0.m
Where:
m – Node controllers/Network devices
• Path p addresses are used for motors on that path:
x.y.p.m
Where:
p – path
m – motor
• Maximum number of QSHT 5700 inverters per Ethernet chain = 50.
• Factory network design must minimize extra traffic on the physical network that the
transport system is using.
• Only use linear (chain) or star Ethernet connection topologies (see Figure 3-15
through Figure 3-27).
• When using a linear topology, if any device becomes disconnected, all devices
downstream of that device lose communication.
• Closed-loop (ring) Ethernet connections must be avoided (industry standard
Ethernet practice) to help prevent network saturation.
• Only pass transport system communication through the Ethernet chains in the
transport system.
• Large amounts of traffic can degrade the performance of the transport system.
• Standard IP UDP communication, low latency.
• 100BASE-TX Fast Ethernet (IEEE 802.3u) compliant.
• Minimum of Cat 5 cabling is required.
• Ethernet communication topology is independent of transport system configuration
(Ethernet chaining does not have to follow the physical path layout).
• The use of Allen-Bradley
®
Stratix
®
Managed Ethernet Switches is recommended to
deliver the required network performance.
• Ethernet chains can consist of multiple paths (as defined in the transport system layout
drawing).
• Chains do not need to start at the beginning of a path.
• If all motors in a path are not part of the same Ethernet chain, all chains the path is a
member of must connect to the same network as the node controller.
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