User manual
1 Publication CIG-WD001B-EN-P - May 2005
Chapter
13
1790 CompactBlock LDX I/O Modules
IMPORTANT
The catalog numbers included in this chapter are organized
alphabetically according to connector type. The modules
that use D-shell connectors are listed first, followed by the
modules that use terminal blocks.
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
COM0
I0
I1
I2
I3
I4
I5
I6
I7
COM2
O0
O1
O2
O3
O4
O5
O6
O7
COM1
COM1
COM1
COM1
COM1
COM3
COM3
COM3
COM3
COM1
COM1
COM1
COM1
COM3
COM3
COM3 COM3 COM3
Sinking inputs - wire Com 1 to Field Power (+) 24V dc, wire Com 0 to Field Power (-) GND
Sourcing inputs - wire Com1 to Field Power (-) GND, wire Com 0 to Field Power (+) 24V dc
Note: all Com 1 are internally connected.
Sinking outputs -wire Com 2 to Field Power (+) 24Vdc, wire Com 3 to Field Power (-) GND
Note: all Com 3 are internally connected.
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
COM0
I0
I1
I2
I3
I4
I5
I6
I7
COM2
I8
I9
I10
I11
I12
I13
I14
I15
COM1
COM1
COM1
COM1
COM1
COM3
COM3
COM3
COM3
COM1
COM1
COM1
COM1
COM3
COM3
COM3 COM3 COM3
For inputs 0-7: Sinking inputs - wire Com 1 to Field Power (+) 24V dc, wire Com 0 to Field Power (-) GND
Sourcing inputs - wire Com 1 to Field Power (-) GND, wire Com 0 to Field Power (+) 24V dc
For inputs 8-15: Sinking inputs - wire Com 3 to Field Power (+) 24V dc, wire Com 2 to Field Power (-) GND
Sourcing inputs - wire Com 3 to Field Power (-) GND, wire Com 2 to Field Power (+) 24V dc
Note: All Com 1 and Com 3 are internally connected - Com 1 is used for inputs 0-7, Com 3 is used for
inputs 8-15.
1790-16BVOX 1790-8BV8BX
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
COM0
I0
I1
I2
I3
I4
I5
I6
I7
COM2
O0
O1
O2
O3
O4
O5
O6
O7
COM1
COM1
COM1
COM1
COM1
COM2
COM2
COM2
COM2
COM1
COM1
COM1
COM1
COM3
COM2
COM2 COM2 COM2
Sinking inputs - wire Com 1 to Field Power (+) 24V dc, wire Com 0 to Field Power (-) GND
Sourcing inputs - wire Com1 to Field Power (-) GND, wire Com 0 to Field Power (+) 24V dc
Note: all Com 1 are internally connected.
Sinking outputs -wire Com 2 to Field Power (+) 24Vdc, wire Com 3 to Field Power (-) GND
Note: all Com 2 are internally connected.
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
COM0
O0
O1
O2
O3
O4
O5
O6
O7
COM2
O8
O9
O10
O11
O12
O13
O14
O15
COM1
COM1
COM1
COM1
COM1
COM3
COM3
COM3
COM3
COM1
COM1
COM1
COM1
COM3
COM3
COM3 COM3 COM3
Sourcing outputs - wire Com 0 and Com 2 to Field Power (+) 24V dc, wire Com 1 and Com 3
to Field Power (-) GND
Note: all Com 1 and Com 3 are internally connected.
1790-8BV8VX 1790-OB16X