Configuration Manual Owner manual
Publication 1757-PM002A-EN-E - June 2006
1-4 System Requirements
Connector Blocks
Connector blocks are optional coupling devices. They can be used to connect
wire to a fieldbus device, or to another section of wire (e.g. at a junction block).
Connector blocks are useful for installations where devices may be periodically
disconnected or moved.
Standard fieldbus connectors are specified in Annex B of the ISA Physical
Layer Standard and Annex A of the IEC Physical Layer Standard.
1757-FFLD Linking Device
The 1757-FFLD, also referred to as the linking device, bridges both
F
OUNDATION Fieldbusâ„¢ HSE and Ethernet/IP networks to FOUNDATION
fieldbus H1 device networks. Bridging these networks facilitates information
flow between a Logix system’s control layers.
Terminal Blocks
Terminal blocks typically provide multiple bus connections, so a device can be
wired to any set of bus terminals. They can be the same terminal blocks as
used for 4-20 mA.
Terminators
A terminator is an impedance matching module used at or near each end of a
transmission line. Terminators prevent distortion and signal loss, and are
typically purchased and installed as preassembled, sealed modules. Each
terminator has a value of 50 ohms.
A trunk is the longest cable path between any two devices on the network. All
connections to the trunk are called spurs. Place the terminators at the ends of
ATTENTION
You can use a maximum of two terminators per bus
segment.