4 TEMPERATURE INPUT MODULE REPLACEMENT
4 - 55
4.7.2 Functional comparison
: Available, - : Not available
Item Description A68RD4N Q64RD 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
This function detects connected platinum
RTD or cable breakage.
For the Q64RD, a disconnection
is detected per channel.
Specification of platinum RTD
type
Specifies a platinum 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.
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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