USER MANUAL

Appendix G
Application Notes
G–19
Figure G.6
DL20 to DC Output Module (Catalog No. 1771-OB, -OG)
00-07 10-17
A
0
1
2
3
4
5
6
7
8
A
0
1
2
3
4
5
6
7
8
+ 12-24 VDC (OB) -
or
+ 5 VDC (OG) -
DL20 Terminals
1771-OB DC Output Modules (12-24 VDC)
or
1771-OG DC Output Modules (5VDC)
D9 D8 D7 D6 D5 D4 D3 D2 D1 MS1MS0 GNDDO
Set both internal switches in the OG module ON for
high true logic.
+5
VDC
OUT
Important Note: The 1771-OG TTL output modules 5VDC signals are
more noise susceptible than 12-24 DC signals. In applications where noise
may be a problem, it is strongly recommended that a 1771-OB DC output
module be used.
!
ATTENTION: Do not connect to terminal 22 (+5 VDC OUT).
Applying any voltage to this terminal will damage the DL20.