KROHNE OPTIBAR DP 7060 C EN - Manual (Page 80)

8
DESCRIPTION OF HART INTERFACE
80
OPTIBAR DP 7060 C
www.krohne.com 04/2014 - 4003292001 - MA OPTIBAR DP 7060 C R01 en
8.3.1 Point-to-Point connection - analogue / digital mode
Point-to-Point connection between the signal converter and the HART ® Master.
The current output of the device is passive.
8.4 Inputs/outputs and HART ® dynamic variables and device variables
PV = Primary Variable; SV = Secondary Variable; TV = Third Variable; QV = Quarternary Variable
Figure 8-1: Point-to-Point connection
1 Primary master with e.g. PACTware TM FDT/DTM
2 FSK modem
3 HART
® signal
4 OPTIBAR DP 7060 C
5 Secondary master with HART
® DD
6 Power supply for devices (slaves) with passive current output
7 Load ≥ 250 Ω (Ohm)
HART ® dynamic variable
PV SV TV QV
Linear percent value Physical unit Meas. cell temp. Electronic temperature
Table 8-1: HART ® output values acc. to HART ® 7 (factory setting)
.book Page 80 Friday, May 2, 2014 10:25 AM