Black Box IC108A Guía de usuario descargar pdf (Pagina 33)

Advant

Smart Device (HART

) Interface User’s Guide

Section 2.3.1 Connecting to a SHIM

3BUR 001 085R0001 REV A 2-21

You can purchase SHIMs with their ModbusB slave addresses preset by ABB. The preset

address is indicated on a sticker on the side of the SHIM’s housing, thereby, allowing you to

easily locate a particular SHIM in the field. If you purchased SHIMs without preset ModbusB

slave addresses or you want to change a SHIM’s address, set switch positions S1-1 through S1-

5 to the ON or OFF setting that produces the desired address and write the address on the sticker

on the side of the SHIM housing. For example, to set a SHIM’s ModbusB slave address to 2,

switch positions S1-1 through S1-5 are set to OFF, ON, OFF, OFF, and OFF, respectively. The

SHIM in Figure 2-16 has a ModbusB slave address of 2.

2.3.1.4 Setting SHIM Parity and Baud Rate

HART protocol communicates smart device field data to the SHIM at 1200 baud, and ModbusB

protocol communicates at 9600 baud. Therefore, to support ModbusB protocol for the

communication of smart device field data to the Advant Controller, SHIM serial ports are

configured at 9600 baud with no parity by default. The SHIM serial port baud rate and parity are

Figure 2-16. DIP Switches Accessible from Back Panel of SHIM

1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 117 118

Sin comentarios

Black Box IC108A Guía de usuario Pagina 33