Black Box IC108A Guide de l'utilisateur Page 30

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Advant
®
Smart Device (HART
®
) Interface User’s Guide
Chapter 2 Installation
2-18 3BUR 001 085R0001 REV A
2.3.1 Connecting to a SHIM
The MVI serial ports support ModbusB protocol. The smart devices use HART protocol.
Therefore, to communicate information to the Advant Controller, the HART protocol of smart
devices must be converted to ModbusB protocol. This conversion is provided by a Small HART
Interface Module (SHIM).
The Smart Device Interface supports 2 SHIM models: SHIM-4 and SHIM-8. You can connect
up to 4 smart devices to a SHIM-4 and up to 8 smart devices to a SHIM-8. In the remainder of
this document, the term SHIM refers to either the SHIM-4 or SHIM-8. The terms SHIM-4 and
SHIM-8 only are used to identify information specific to that model
Both the SHIM-4 and SHIM-8 have a 10-position terminal block (XTB1) and two 12-position
terminal blocks (XTB2 and XTB3) as shown in Figure 2-15. However, there are no internal
connections for the second 12-position terminal block (XTB3) on the SHIM-4.
Figure 2-15. Front and Right Side View of SHIM
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12
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12
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Diagnostic
LEDs
9
10
RUN
LED
Fuse
XTB1
XTB3
XTB2
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