Rice Lake 520 HMI Digital Weight Indicator Installation Manual - Manual (Page 16)

LIMITR
6 7 8 9 10
15 14 13 12 11
RICE LAKE WEIGHING SYSTEMS
100 76
75
51
50 26 25
1
U22
A/D Converter
U19
U19 U19
U1 9
U1
9
SETUP
T1
U19
JP1
JP2
ISP
J7
F2
J4 J5 J6
U19
GND2
F1
J2
J1
TX
GND
RX
J8
GND1
ANALOG
TEST
+5V
TEST
–5V
TEST
+3.3V
SHIELD
7
-EX
6
+EX
5
-SEN
4
+SEN
3
-SIG
2
+SIG
1 10
GND
EDPTX
1
GND
2
EDPRX
3
PRNTX
4
PRNRX
5
20MA-
6
20MA+
7 8
RS485
B
9
RS485
A
DGND
1
DIGIN
1
2
DIGIN
2
3
DIGIN
3
4
DIG OUT
1
5
DIG OUT
2
6
DIG OUT
3
7
DIG OUT
4
8 9
DGND
10
+5
V
Installation 10
Figure 2-6. 520 CPU and Power Supply Board