19. HARDWARE CHECK
19.7 Communications IF Check
2
Check Flow Chart
Operation screen | DISP |
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2 sec. or more
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| A～Z ） | |||||
[Engineering mode selection] |
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| Cursor |
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| Check |
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| ° | ° | → ENTRY | |||
[Selecting check] |
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| C |
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[Displaying check 1] |
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| Cursor |
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| Ref.1 | ||
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[Displaying check 2] | / | % | Ref.2 | ||||||||
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[Selecting communications] |
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| °C |
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| ENTRY | Ref.3 | ||
[Communications check] | ||||||
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Communications type Send/Receive status display |
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ENTRY
Check ends
Reference 1 |
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| Check 1 and 2 switching |
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Press | / | or | % | to switch | |||
Check 1 and 2. |
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Reference 2 |
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(1): Alarm output check
(2): Remote contacts input check
(3): Communications interface check
Reference 3 Communications check
1.Communications type Communications type installed is displayed.
•RS232C
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•RS422A
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•RS485
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2.Communications status display
•Normal condition:
Displays one digit by one digit as 0 → 1 → 2 …9, and after 9, repeat from 0 again.
•Abnormal condition:
One of 0 to 9 blinks. In this case, communications circuit is abnormal.
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