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