Suaa Universal Analog Terminal Board; Suaa Terminal Board Screw Definitions - GE Mark VIeS System Manual

7.16 SUAA Universal Analog Terminal Board

The SUAA terminal board is a simplex universal analog I/O board that
provides 48 terminals, grouped in threes to provide 16 channels or IO
points. There are four additional screws (49, 50, 51, and 52) that provide a
grounding option for special-case I/O pack-powered 4–wire field device
applications. A single YUAA I/O pack mounts to the terminal board,
using two screws. SUAA provides local cold junction sensing at the
terminal block (two local cold junctions). The pack-supplied power from
the terminals to the field devices is a current-limited 24 V supply.
The terminal blocks are removable on a per channel basis because of how
the points are grouped together as PWR_RTN, IO+, and IO- respectively.
For example, screws 1, 3, 5 provide channel 1, with screw 1 = PWR_RTN,
screw 2 = IO+, and screw 3 = IO-.
Although this screw and channel assignment continues for the remaining
screws and channels, there are certain modes where power is supplied
from the IO+ screw, or where power is supplied at the device itself (in
either case the first screw in the series is not used).
Screw
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
YUAA Universal I/O Modules

SUAA Terminal Board Screw Definitions

Name Channel Screw
PWR_RTN 2 1
IO+ 2 3
IO- 2 5
PWR_RTN 4 7
IO+ 4 9
IO- 4 11
PWR_RTN 6 13
IO+ 6 15
IO- 6 17
PWR_RTN 8 19
IO+ 8 21
IO- 8 23
PWR_RTN 10 25
IO+ 10 27
IO- 10 29
PWR_RTN 12 31
IO+ 12 33
IO- 12 35
PWR_RTN 14 37
IO+ 14 39
IO- 14 41
PWR_RTN 16 43
IO+ 16 45
IO- 16 47
COM 49
COM 51
Public Information
Name Channel
PWR_RTN 1
IO+ 1
IO- 1
PWR_RTN 3
IO+ 3
IO- 3
PWR_RTN 5
IO+ 5
5
IO-
PWR_RTN 7
IO+ 7
IO- 7
PWR_RTN 9
IO+ 9
IO- 9
PWR_RTN 11
IO+ 11
IO- 11
PWR_RTN 13
IO+ 13
IO- 13
PWR_RTN 15
IO+ 15
IO- 15
COM
COM
GEH-6855_Vol_II System Guide 225