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Advant

Smart Device (HART

) Interface User’s Guide

Section 2.2.2 Connecting to an Advant Controller 460

3BUR 001 085R0001 REV A 2-11

2.2.2 Connecting to an Advant Controller 460

The paragraphs that follow describe the serial ports of an Advant Controller 460 (AC460) and

how to connect a smart device to them. The smart device interface can take advantage of CPU

redundancy.

AC460 CPU Redundancy

The AC460 CPU (PM510) can be either non-redundant as shown in Figure 2-8, or it can use

CPU redundancy as shown in Figure 2-9. If CPU redundancy is used, the backup CPU takes

over processing if the primary CPU fails. All functions of the primary CPU including smart

device support are handled by the backup CPU. Information about AC460 redundancy is

provided in the Advant Controller 460 User’s Guide.

NOTE

Redundancy of CPUs and smart device communications are independent

functions. In the event of a takeover by the back-up CPU, there is no

corresponding fail-over of the serial ports.

Figure 2-8. AC460 without PM510 CPU Redundancy

510

AC460 Subrack

510

CPU 1/A

CPU 2/A

CPU 2/B

CPU 3/A

CPU 3/B

Empty Slot

PM510K01

Non-Redundant CPU

510

540

Port 3/4

SHIM

(RS-232)

MVI

CI532V02

XMTR

1-8

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