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