Functional Comparison - Mitsubishi Electric MELSEC-A/QnA Series Handbook

4
TEMPERATURE INPUT MODULE REPLACEMENT

4.8.2 Functional comparison

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