STAI
Screw
STAI
Name
Channel
SUAA
screw
SUAA
Name
Use
40
Ret
10
30
IO-
Same as SUAA screw 5
41
PCOM
49
COM
Ground for special-use 4-wire internally powered devices
42
PCOM
50
COM
Ground for special-use 4-wire internally powered devices
43
PCOM
51
COM
Ground for special-use 4-wire internally powered devices
44
PCOM
52
COM
Ground for special-use 4-wire internally powered devices
45
OP1
11
33
IO+
current output 1
46
OR1
11
35
IO-
return for current output 1
47
OP2
12
34
IO+
current output 2
48
OR2
12
36
IO-
return for current output 2
7.3.3.3
Wiring and Configuration for STAO Retrofits
The following table provides a field wiring and channel comparison for retrofitting an existing STAO with a SUAA terminal
board to provide current outputs.
STAO
Screw
STAO
Name
Channel
SUAA
Screw
SUAA
Name
Use
1
AO
1
3
IO+
AO Signal
2
Ret
1
5
IO-
Return
3
AO
2
4
IO+
AO Signal
4
Ret
2
6
IO-
Return
5
AO
3
9
IO+
AO Signal
6
Ret
3
11
IO-
Return
7
AO
4
10
IO+
AO Signal
8
Ret
4
12
IO-
Return
9
AO
5
15
IO+
AO Signal
10
Ret
5
17
IO-
Return
11
AO
6
16
IO+
AO Signal
12
Ret
6
18
IO-
Return
13
AO
7
21
IO+
AO Signal
14
Ret
7
23
IO-
Return
15
AO
8
22
IO+
AO Signal
16
Ret
8
24
IO-
Return
17
Chassis Ground
Chassis
18
Chassis Ground
Chassis
19-36
No connects
n/c
YUAA Universal I/O Modules
GEH-6855_Vol_II System Guide 181
Public Information