Allen-Bradley SLC 500 1746-NI4 Installation Instruction page 23

Backplane Current Specification for NI4, NIO4I, NIO4V,
NO4I, NO4V, FIO4I, and FIO4V
Catalog Input Channels
1746- per Module
NI4 4 differential,
voltage or
current
selectable per
channel, not
individually
isolated
NIO4I 2 differential,
voltage or
current
selectable per
channel, not
individually
isolated
NIO4V 2 differential,
voltage or
current
selectable per
channel, not
individually
isolated
NO4I NA
NO4V NA
FIO4I 2 differential,
select V or I per
channel
FIO4V 2 differential,
select V or I per
channel
(1) Required for some applications if sufficient power is not available from SLC power supply.
SLC 500™ Analog I/O Modules
Output Backplane Current
Channels Draw
per Module
5V (max.) 24V
NA 35 mA
2 current 55 mA
outputs, not
individually
isolated
2 voltage 55 mA
outputs, not
individually
isolated
4 current 55 mA
outputs, not
individually
isolated
4 voltage 55 mA
outputs, not
individually
isolated
2 current 55 mA
outputs
2 voltage 55 mA
outputs
External 24V dc
Power Supply
Tolerance
(max.)
85 mA NA
145 mA NA
115 mA NA
195 mA
24V dc
195 mA max.
(21.6 to 26.4V
(1)
dc)
145 mA
24V dc
145 mA max.
(21.6 to 26.4V
(1)
dc)
150 mA NA
120 mA NA
Publication 1746-IN008A-US-P
23
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10% at
±
10% at