Hardware reference guide

I/O Modules
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The following figure shows Register 9.
* A range warning is issued when a channel input is outside the rated input value,
as shown in the following table. Warning bits stay on after out of range bits are set.
An out-of-range bit is set when a channel input exceeds the rated input value by
2.4%. Out of range bits are also set if inputs drop below 0.5 V (1 ... 5 V mode) or
2.08 mA (4 ... 20 mA mode).
When configured for current inputs (jumper installed between INPUT(+) and
ISENSE terminals), a broken field wire results in a zero current reading. If 4 ... 20
mA is selected, fault LEDs and warning/out of range and I/O Map Status Byte bits
are displayed