YOKOGAWA F3LP32-0N, Руководство пользователя

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6-4
IM 34M06H43-02E 2nd Edition : Sep.30, 2019-00
6.3 When Communication Cannot Proceed
Communications
disabled/data invalid
NO
Is application program correct?
(note)
Note: Link refresh is not performed on link relays and link registers
that are not written in the program. For details, see Section 4.1.2,
Link Refresh Range . In addition, confirm that the number of link
device points set in the WideField3 configuration is correct. Set it to
1024 for high-speed mode and 2048 for normal mode.
Correct application program
YES
Connect station number 1, and
turn FA-M3 power off and then on
(See Section 3.3)
Connect cables correctly
(See Section 3.6)
Enable terminators on the
transmission path
(See Section 3.6)
Does station
number 01 exist?
Are cables
connected properly?
Are terminators
enabled on the transmission
path?
Are cables close to
power cables?
Is FA-M3 grounded properly?
Replace the module if the problem
persists after turning the power off and
on again
Run cables away from power lines
Ground FA-M3 properly
(See Section 3.6)
Is the transmission
speed valid?
Set a valid transmission rate
(See Section 3.4)
Momentary power failure?
Remove causes of momentary
power failure
(Check System log of WideField3)
NO
YES
YES
YES
YES
YES
NO
YES
NO
NO
NO
NO
NO
YES
Have you checked Chapter 5,
Cautions of Using
?
Check Chapter 5
Cautions of Using
NO
YES
Figure 6.1.4 Flowchart To Be Used When Communications Cannot Proceed