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IM 34M06H62-02E-003
Oct.2019
1/1
Yokogawa Electric Corporation
Addendum
Manual No.
:
IM 34M06H62-02E
Manual Name
:
Temperature Control and PID Module
Edition
:
3rd Edition
・
Page C4-2 Set Point(SP)
Add the CAUTION to section C4.1.
CAUTION
When update the set point (1.SP to 4.SP) of F3CU04, in rare cases, the value may not be
rewritten (returns to the original value).
As a countermeasure, when rewriting the set point from the application program, please
take following processing.
・
Sequence CPU module (when using F3SP□□)
Write the set point (WRITE instruction) repeatedly by every ladder scan or at intervals
within the F3CU04 control cycle (100 ms or 200 ms).
・
e-
RT3 CPU module (when using F3RP□□)
Write the set point twice or more at intervals of 20 to 100 ms.
Example: Writing is performed by a fixed-cycle task with a cycle of 20 to 100 ms.
User’s
Manual
Manual
Temperature Control and
PID
Module
Summary of Contents for F3CU04-0S
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