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

4
TEMPERATURE INPUT MODULE REPLACEMENT

4.3.2 Functional comparison

Item
Temperature conversion function
Conversion enable/disable
function
Disconnection detection function
Temperature conversion value
storage
Input type selection function
Warning output function
Temperature conversion system
Scaling function
Pt100 cold junction compensation
enable/disable setting function
Offset/gain setting function
Error correction function
Online module replacement
Description
Imports temperature data.
Sets whether to enable/disable a
conversion per channel.
Detects a disconnection of the connected
thermocouple of each channel.
Stores imported temperature data in the
buffer memory.
Sets an input type for each channel.
Outputs a warning when the temperature
exceeds the set temperature range.
Processes the detected temperature by
specified method.
Converts a measured temperature value
into a percent value (%) in set width.
Sets whether the cold junction
compensation using the Pt100 attached to
the terminal is performed or not.
Performs linear correction by individually
compensating any given 2 points (offset
value/gain value) within the effective range.
For all input ranges, the function allows
compensating the temperature
measurement value by part of the
compensation value the errors
compensation value.
Replaces a module without stopping the
system.
: Available, : Partial change required, - : Not available
Q68TD-G-
A616TD Precautions for replacement
H02/H01
The Q68TD-G-H01 does not
have the disconnection detection
function. Use the disconnection
monitor function instead.
For the Q68TD-G-H02/H01, this
function is set with the intelligent
function module switch setting.
-
-
-
-
-
Perform the error correction by
- the offset/gain setting of the
Q68TD-G-H02/H01.
Replaceable modules during
- online are the Process CPU and
the Redundant CPU.
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