FOUNDATION Fieldbus Linking Device LD 800HSE

The LD 800HSE linking device serves as a gateway between the field devices on the H1 links and the HSE subnet.

LD 800HSE enables the access to field devices connected to the FOUNDATION Fieldbus (FF) from supervisory and control systems as well as management consoles. The device is qualified for redundant use, where the corresponding H1-ports of two Linking Devices are connected to one H1 link. A separate redundancy link between primary and secondary Linking Devices ensures reliable failover and monitoring of redundancy.

Two different versions are available, one for safe areas and one for hazardous areas.

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Technical Data
  • Provides link between the FF’s High Speed Ethernet (HSE) protocol and up to four H1 links
  • Transparent configuration of connected H1 devices from host system
  • Allows access to blocks in H1 devices (Client/Server)
  • Four Independent H1 Link Masters (LAS)
  • Publish/Subscribe (H1) (with up to 4 sub-cycles)
  • Republishing of data from one H1 link into another or from H1 to HSE
  • Firmware update via download

 LD 800HSE Technical Data
 Mechanical design
(length x height x width)
47 x 131 x 111 mm,
mounted on DIN rail 35 mm 
Weight approx. 0.4 kg
Degree of protection
IP 20
Environmental conditions Operating temperature
0° C ... +55° C,
non-vertical mounting and hampered air
convection may reduce upper temperature limit
Storage temperature  −20° C ... +70° C
Relative humidity  0% ... 95%, non-condensing
Ethernet interface
Number of channels 1
Port  Ethernet 10BASE-T/100BASE-TX, TJ45 
Transfer rates  10 Mbit/s or 100 Mbit/s (autosensing) 
H1 Fieldbus Interface Number of channels  4
Ports FF H1 3-pole screw terminals (pluggable)
transformer coupling
galvanically isolated 
Physical layer profile type 114, standard power signalling, separately powered, not intrinsically safe 
Transfer rate 31.25 kbit/s 
Serial Interface Port  9-pole SubD male RS-232, 115.2 kbit/s 
Certifications  CE compliance acc. to EMC Directive 2004/108/EG (EMC), 2006/95/EG (Low Voltage) and 94/9/EG (ATEX)
Electro Magnetic Compatibilty (EMC) acc. to. FCC Part 15 Subpart B Class A,
VCCI Class 2 Information Technology Equipment 2002
Shock and Vibration acc. to DIN IEC68 Part 2
G3 coated acc. to ANSI/ISA 71.04, EN60068-2-60
Certifications (LD 800HSE EX only)
Hazardous Location Certification:
UL Class I, Division 2, Groups A, B, C, D

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