ABB TH 02 Gebrauchsanweisung Seite 13

HART communication, HART programmming (with PC
or HART communicator
Fig. 16 HART communication including specifications for HART communication for Ex units
Precondition for communication min. 250 Ω (max. 950 Ω) in mains unit or in the 4...20 mA current loop
1
Z-20087
Take account of power current drop in the 4...20 mA current loop (e.g. load 250 Ω × 22 mA = 5.5 V): in the case of I
2
at least 8.5 V must be available at the transmitter terminals.
Bus operation
TH 02, TH 02-Ex, TH 102 and TH 102-Ex are suitable for multi-
trop and FSK bus operation.
Multitrop operation
Maximum of 15 units, addressing with address 1...15, no analog
signal I = 4 mA constant per unit, only HART signal available.
FSK Bus Operation
More than 1000 units, addressing with communication names
(address 0), analog and HART signal available.
Programming with PC
Software
SMART VISISON (to be ordered from manufacturer)
Hardware
Modem FSK modem II with electrical isolation and [EEx
ib] IIC (supplied by manufacturer)
Notice
As a matter of principle, use only the electrically
isolated FSK modem II from manufacturer for field
programming exercises.
PC Minimum // Recommendation
− Processor 80486 DX2/66 // Pentium 100
− RAM 8 MB // 32 MB
− 2-fold CD-ROM // 4-fold CD-ROM
− free hard disk capacity 20 MByte
− Monitor and graphic card VGA // SVGA
− Windows 3.1x
Programming with HART commu-
nicator
In principle, all HART units can be programmed without having
to load the unit-related „device description" stored in the HART
communicator into the standard parameters (lower-range value,
upper-range value, unit, damping, tag name) defined by the
HART User Group.
Precondition for programming all functionalities of a unit is the
loading of the unit-related „device description" into the HART
communicator.
= 22 mA
max