Black Box IC108A Betriebsanweisung PDF herunterladen (Seite 20)

Advant

Smart Device (HART

) Interface User’s Guide

Chapter 2 Installation

2-8 3BUR 001 085R0001 REV A

The Westermo Teleindustri AB MA-42 is configured in the following manner:

Always refer to the documentation that comes with the equipment for more information.

The twisted-pair RS-485 cable between the RS-232/485 converter and the first SHIM

connection has the following pin assignments:

Each subsequent SHIM on the RS-485 bus is daisy-chained to each other using a twisted-pair

wire connecting XTB1-8 to XTB1-8 and XTB1-9 to XTB1-9 of each SHIM.

Table 2-9. Westermo Teleindustri AB MA-42 Set-up Requirements

Function Switch Settings

Selection of power source

115V/230V AC

is set according to

local AC requirement

Transmitter activated by RTS

CTS controlled by RTS

DCD controlled by RTS

CTS Delay = 20ms

1,4,6 = ON

2,3,5 = OFF

2-wire Line Connection and Termination S3

2,5,6 = ON

1,3,4 = OFF

Table 2-10. RS-232/485 Converter to First SHIM Cable (RS-485)

Westermo Teleindustri AB

MA-42 Line Connection

(5-position screw terminal)

Black Box IC108A

TB1 (unterminated)

SHIM

XTB1 (unterminated)

Description

1,3 RxB, TxB 8 Data +

2,4 RxA, TxA 9 Data -

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 117 118

Keine Kommentare

Black Box IC108A Betriebsanweisung Seite 20