Rockwell Automation 1791-XXXX Discrete I/O AC and DC Block I/O Input and Output Modules User Manual
Page 12
I/O Interface and System Design
Chapter 2
2-2
DC block input modules are compatible with 1771 series output modules if
the off-state leakage current of the module is less than the block module
minimum off-state current and the on-state voltage minimum of the dc
block input is greater than the supply voltage minus the on-state voltage
drop across the 1771 output module. Some 1771 I/O modules that meet
these specifications are:
1771-OB dc output driver module
1771-OBD dc (10–60V) output module
1771-OBN dc (10–30V) output module
Other Allen-Bradley products that are compatible with block inputs are
shown in Table 2.A.
Table 2.A
Compatibility of Other AllenĆBradley Products
Product
AC
DC
Product
AC
DC
Contactors
Bulletin 100
100ĆA75
100ĆA45 (pure coil)
100ĆB180
(economized coil)
Bulletin 500
NEMA 0-2
NEMA 00
Outputs
Relays (Bulletin 700)
Outputs
Type F
Yes
Yes
Type PK
Yes
Yes
Type N
Yes
No
Type R
Yes
No
Type P
Yes
Yes
Type RM
Yes
Yes
Type PH
Yes
Yes
Photoswitches
Series 4000
Yes
Yes
Series 6000
Yes
Yes
Series 5000
Yes
Yes
Series 7000
Yes
Yes
Inputs
Proximity Switches
Inputs
871C
Yes
Yes
871
Yes
Yes
871L
Yes
Yes
871Z
Yes
Yes
871P
Yes
N/A
802PR
see 1
N/A
871T
Yes
Yes
871T
Yes
Yes
1 Refer to individual switch specifications