i
-87K
87K Digital I/O Modules Selection Guide
Module
I-87040
Digital Input
Channels
Isolation
Digital Output
Channels
Channels
Counter
Input
Frequency
Safe Value
Power-on
Preset Value
Dual Watchdog
Timer
Availability
Module
Digital Input
Channels
Digital Output
Channels
Channels
Counter
Input
Frequency
Safe Value
Power-on
Preset Value
Dual Watchdog
Timer
Availability
Serial Modules
SERIES
I-87041
32
–
32 (open
–
collector
Isolation)
–
32
100Hz
–
–
Yes
–
Yes
Yes
Yes
Y
Y
I-87054
I-87055
8
Isolation
8
(3750V)
8 (open
8 (open
collector)
collector
Isolation
Isolation)
(3750V)
(3750V)
8
8
100Hz
100Hz
Yes
Yes
Yes
Yes
Yes
Yes
Y
Y
3-36
I-87051
I-87052
8
differential
16
Isolation
(5000V)
–
8
16
100Hz
100Hz
–
–
–
–
Yes
Yes
Y
Y
I-87057
–
16 (open
collector)
Isolation
(3750V)
–
–
Yes
Yes
Yes
Y
I-87053
16
Isolation
(3750V)
–
16
100Hz
–
–
Yes
Y
I-87058
8
differential
Isolation
(5000V)
–
8
100Hz
–
–
Yes
Y