Product specifications

Section 3 Configuration I/O Systems
3BSE036351-510 A 165
FOUNDATION Fieldbus High Speed Ethernet (FF HSE)
FOUNDATION Fieldbus (FF) is a fieldbus protocol based on international
standards and designed for applications in the manufacturing industry, process
automation and buildings automation. The guidelines for this fieldbus standard are
published by the Fieldbus Foundation.
FF defines two communication profiles, H1 and HSE. The H1 profile allows a
transmission rate of 31.25 kbit/s. It is preferably used for direct communication
between field devices in one link (H1 link). The HSE profile is based on standard
ethernet serves first and foremost as a powerful backbone for the link between H1
segments. Typically transmission rates are: 10 Mbit/s or 100 Mbit/s. The first
devices that are already available on the market and support the HSE profile are FF
linking devices (for example LD 800HSE). They serve as a gateway between the
field devices on the H1 segments and the HSE backbone.
The FOUNDATION Fieldbus is linked to the AC 800M via the high-performance
HSE bus using FF linking devices.
More detailed information on the HSE profile can be found in the FF specifications.
The fundamental concepts behind HSE are explained in the FF specifications
System Architecture (FF-581) and HSE Profiles (FF-941).
The FF subsystem consists of FF linking devices (for example LD 800HSE, see
Appendix C, Recommended Components) which communicate with one another
using the HSE protocol. An FF linking device usually provides more than one
FOUNDATION Fieldbus H1 segments (H1 link). FF linking devices with a device
class of 42c allow process data that have been published cyclically on the subsidiary
H1 segments to be “republished” on the HSE segment. By using HSE republishing,
it is possible to configure cyclical communication between field devices on different
H1 segments and devices on the HSE segment.The FOUNDATION Fieldbus HSE
and H1network and the devices are configured with the Fieldbus Builder
FOUNDATION Fieldbus.
The FF subsystem is interfaced to the IEC 61131 controller (AC 800M) using a
FF HSE unit CI860 in the AC 800M, see Figure 7 on page 39. From the perspective
of FF the FF HSE unit is an HSE device which participates in the HSE
communication.