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－１１７－
19. HARDWARE CHECK
19.7 Communications IF Check
2 Check Flow Chart
Operation screen
[Engineering mode selection]
（
＋ ）
3 sec. or more
[Selecting check]
→
[Displaying check 1]
[Displaying check 2]
[Selecting communications]
[Communications check]
Check ends
Press or to switch
Check 1 and 2.
(1)
: Alarm output check
(2)
: Remote contacts input check
(3)
: Communications interface check
1. Communications type
Communications type installed is
displayed.
• RS232C
…
• RS422A
…
• RS485
…
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.
2 sec. or more
Cursor
Check
Cursor
DISP
SHIFT
6
A～Z
(1) (3)
(2)
Cursor
Cursor
Communications type
Send/Receive status display
°
C
°F
ENTRY
%
/
°C
°
F
ENTRY
ENTRY
%
/
Cursor
Check 1 and 2 switching
Reference 1
Types of check 2
Reference 2
Communications check
Reference 3
Ref. 1
Ref. 2
Ref. 3