10
FLEX I/O 5V DC TTL Digital Input and Output Modules
Publication 1794-IN119C-EN-P - August 2018
Ground Your Module
Use shielded communication cable (Belden #8761). The Belden cable has two signal wires
(black and clear), one drain wire, and a foil shield. The drain wire and foil shield must be
grounded at one end of the cable.
Configure Your Input Module
You configure your input module by setting bits in the configuration word (word 3).
IMPORTANT
Do not ground the drain wire and foil shield at both ends of the cable.
Image Table Memory Map for the 1794-IG16 Module
Dec
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Oct
17
16
15
14
13
12
11
10
7
6
5
4
3
2
1
0
Read
I15
I14
I13
I12
I11
I10
I9
I8
I7
I6
I5
I4
I3
I2
I1
I0
Write
Not used - set to 0
Input Filter FT1
12...15
Input Filter FT0
0...11
Where
I = Input status
FT0 = Input filter time for inputs 0...1
FT1 = Input filter time for inputs 12...15
Foil shield
Black wire
Drain wire
Clear wire
Insulation