Niagara FC, Installation & Operation Manual

Page: 122 / 125

FC Flow Computer
118
Terminal Layout for Wall Mount Option:
NEMA 12. 13 Terminal Diagram: NEMA 12. 13 Terminal Layout
RATE
TOTAL 267395.749
GPM
GAL
147.43
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 23 24
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4
RS-232 RS-485
X
R
M
O
C
X
T
S
AI
B
)
C
D
V
8
+(
P
M
D
C
D
2 3 4 5 6 1
RS-232
RING Not Used Not Used Not Used Not Used TIP
2 3 4 5 6 1
Phone
31
)
+(
T
U
P
T
U
O
E
SL
U
P
)-(
T
U
P
T
U
O
E
SL
U
P
)-(
N
O
M
M
O
C
T
U
P
T
U
O
G
OL
A
N
A
)
+(
2
T
U
P
T
U
O
G
OL
A
N
A
E
NI
L
C
A
E
NI
L
C
A
42
1
YL
R
M
O
C
81 91 02 12 22
32
1
YL
R
C
N
2
YL
R
C
N
41 51 61
1
YL
R
O
N
71
NI
R
E
W
O
P
)-(
C
D
)+
(
C
D
NI
E
SL
U
P
T
U
P
T
U
O
C
D
N
O
M
M
O
C
)
+(
TI
C
X
E
D
T
R
)
+(
S
N
E
S
D
T
R
)-(
S
N
E
S
D
T
R
8 9
01 11 21
2 3 4 5 6 7 1
E
R
U
T
A
R
E
P
M
E
T
)
+(
niI
)
+(
ni
V
*
)
+(
ni
I
NI NI
W
OL
F
)
+(
TI
C
X
E
D
T
R
)
+(
S
N
E
S
D
T
R
)-(
S
N
E
S
D
T
R
T
U
P
T
U
O
C
D
E
R
U
S
S
E
R
P
)2
P
M
E
T(
)
+(
niI
NI
)
+(
1
T
U
P
T
U
O
G
OL
A
N
A
- -
-
- -
-
- -
-
-
2
YL
R
M
O
C
2
YL
R
O
N
1
YL
R
M
O
C
81 91 02 12 22
2
YL
R
O
N
2
YL
R
M
O
C
1
YL
R
O
N
71
3
YL
R
O
N
3
YL
R
M
O
C
3 Relay Option
PRINT
5
0
–
TIME
CLEAR
•
MENU
ENTER
HELP
TEMP
4
PRE 1
3
RATE
2
TOTAL
1
GRAND
6
SCROLL
7
PRE 2
8
DENS
9
17 18 19 20 21 22
Phone
DC Power
Option
Specify Power Input When Ordering.
Terminating Resistor
(180 ohms)
TX/RX(–) TX/RX(+) Common
2 3 4 1
RS-485
NEMA 12, 13 Terminal Layout NEMA 12, 13 Terminal Designations
Appendix C- RS-485 Modbus Protocol (continued)