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Data communications, Keep the b position – Liquid Controls LCR 600 Install User Manual

Page 28

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daTa CoMMunICaTIons

rs-232 and rs-485 Communications

The LCR 600 is capable of interfacing with RS-232 and R-S485 communication protocols. Data connections for these

protocols is made at the J2 and J3 terminal blocks. A jumper, located on the left side of the CPU board, can also affect

communication protocol; however, it must remain in the B position for all LCR 600 applications. See note and diagram

below.

52

5354

55

56

PRINTER

SERIAL 485

TERMINAL

POWER

COUNTER

MH1

CTS RXD TXD RTS

GND

GND

485+A

485-B

CTS RXD TXD RTS +VP

EARTH

AUX OUTPUTS

PULSE INPUTS

AUX I/O

GND

GND

GND

IN 1

OUT1

OUT2

OUT3

TEMPERATURE PROBE

ASSY

84040 REV.

RTD+S

RTD-D1

RTE-S

RTD+D

OUT4

OUT5

IN 2

IN 3

IN 4

+5V OUT

+VP

+VP

PGND

OUT6 +VP

SOL

+VP

PGNDOUT7

+VF

+VF

IN5

OUT8

GND

GND

+12-24V

MH4

C1

J20

J6

J3

J2

J1

J7

J12

J15

P1

TP1

J5

J14

J18

J19

J10

J17

J11

J7

C2

MH5

MH3

MH2

A

B

A

B

24

25

11

12

13

A

B

J2 Terminal Block

J3 Terminal Block

A Position

B Position

The LCR 600 is shipped with the jumper in the B position. Keep it there.

There are no cases in which it must be moved to the A position.

Keep the B Position