INOR IPAQ R520X - Manual (Page 26)

5 OPERATION C520/C520X / R520/R520X
09/2010 • 86B5200001 www.inor.com 26
Figure 16: C520 in a multipoint connection (multi-drop mode) with up to 64 devices in parallel
1 Primary master
2 HART modem
3 Secondary master
4 Load ≥ 250 Ω
5 DC power supply
6 Terminal 6
7 Terminal 7
8 C520 or R520 loop current mode disabled up to 64 slaves can be connected
9 4 mA
10 HART
Figure 16 shows a multipoint connection (multi-drop) with up to 64 devices (C520/R520 or other
HART equipment) in parallel. The device's current outputs must be passive.
Burst mode is not supported.
5.2 Configuration of the C520/C520N/C520X / R520/R520N/R520X
ATTENTION!
Only an Ex approved HART modem located in safe area may be connected to a transmitter
placed in potentially explosive area.
In the table below are the factory settings of the C520/C520X / R520/R520X transmitters.
+
2
1
3
8
4
5
6
7
9 9
10
8