4 TEMPERATURE INPUT MODULE REPLACEMENT
4 - 65
4.8.2 Functional comparison
: Available, - : Not available
Item Description A68RD4N Q64RD-G Precautions for replacement
Conversion enable/disable
specification of each channel
Enables/disables a detection of
temperature.
Sampling/averaging processing
selection
Processes the detected temperature by
specified method.
The setting ranges of time and
count averages differ.
Refer to the RTD Input Module/
Channel Isolated RTD Input
Module User's Manual to check
the specifications.
Detected temperature value
storage
Stores temperature data in the buffer
memory.
Disconnection detection
Detects a disconnection of the connected
RTD or cable.
For the Q64RD-G, a
disconnection is detected per
channel.
Type specification of RTD Specifies a RTD type used.
Range switching function Switches the measured temperature range. -
Warning output function
Outputs a warning when the temperature
exceeds the set temperature range.
-
Scaling function
Converts a measured temperature value
into a percent value (%) in set width.
-
Error correction function
Corrects an error in temperature conversion
value.
Perform the error correction by
the offset/gain setting of the
Q64RD-G.
Online module replacement
Replaces a module without stopping the
system.
-
Replaceable modules during
online are the Process CPU and
the Redundant CPU.
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