
Advant
®
Smart Device (HART
®
) Interface User’s Guide
Chapter 2 Installation
2-14 3BUR 001 085R0001 REV A
MVI to RS-232/485 Converter to SHIM (RS-485) for an Advant Controller 460
This configuration is used to connect an MVI serial port to as many as 31 SHIM-8s in a multi-
drop fashion using an RS-232/485 converter. Each SHIM-8 can be connected to up to 8 HART
transmitters for a total of 248 possible HART transmitters (Figure 2-12).
Up to 8 RS-232/485 converters can be connected to each CPU of the AC 460.
The MVI settings, cabling, RS-232/485 converter settings and SHIM settings are the same as for
the AC 410
Figure 2-12. RS-232/485 Communications to a Smart Device in an AC460
PM
510
CPU 1/A
CPU 1/B
510
PM
Port 4/7
(RS-232)
MVI
CI532V02
SHIM
RS-485
SHIM
No.1
No.2
SHIM
No. 31
RS-232/485
converter
XMTR
XMTR
1-8
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