Rockwell Automation 1746-NR8 SLC 500 RTD/Resistance Input Module User Manual - Manual (Page 70)

Publication 1746-UM003A-EN-P
4-22 Channel Configuration, Data, and Status
Explanations of the status conditions follow.
Input Type Status (Bits 0 through 3)
The input type bit field indicates what type of input device you have
configured for the channel. This field reflects the input type selected in bits 0
through 3 of the channel configuration word when the channel is enabled. If
the channel is disabled, these bits are cleared (0).
Data Format Status (Bits 4 and 5)
The data format bit field indicates the data format you have defined for the
channel. This field reflects the data type selected in bits 4 and 5 of the channel
configuration word when the channel is enabled. If the channel is disabled,
these bits are cleared (0).
Broken Input Status (Bits 6 and 7)
The broken input bit field indicates how you have defined the channel data to
respond to an open-circuit or short-circuit condition. This field reflects the
broken input type selected in bits 6 and 7 of the channel configuration word
when the channel is enabled. If the channel is disabled, these bits are cleared
(0).
Temperature Units Status (Bit 8)
The temperature units field indicates the state of the temperature units bit in
the configuration word (bit 8). This feature is only active for RTD input types
with the channel enabled. This bit is cleared (0) if the channel is disabled or if
the input type is a resistance device such as potentiometer.
IMPORTANT
The status bits reflect the settings that were made in the
configuration word. However, two conditions must be true
if the status reflected is to be accurate:
•
The channel must be enabled.
•
The channel must have processed any new configuration
data.