－１００－
15. COMMUNICATIONS INTERFACE 15.2
Programming communications
This explanation is only for the communications interface (option). Press and simultaneously for 3
seconds or more to display the “communications” programming screen.
Operation screen
[Checking communications type]
( + )
3 sec. or more
→
RS232C?
[Programming address]
to
Temporarily stored
[Selecting transmission speed]
Temporarily stored
[Selecting characters]
Temporarily stored
[Selecting checksum]
Temporarily stored
Stored
Communications type is displayed. The
communications type cannot be changed.
01 to 99:
(private) protocol
01 to 31:
(MODBUS) protocol
(Note) “01” is displayed only when “private”
is changed to “MODBUS”.
1200, 2400, 4800, 9600,19200 bps
Only 9600 and 19200 bps are available
with the MODOBUS protocol.
(Note) “9600” is displayed only when
“private” is changed to “MODBUS”.
Characters are displayed with codes.
Code Character
length Parity Stop bit
7E1 7 bits Even 1
7E2 7 bits Even 2
701 7 bits Odd 1
702 7 bits Odd 2
8N1 8 bits Non 1
8N2 8 bits Non 2
8E1 8 bits Even 1
8E2 8 bits Even 2
801 8 bits Odd 1
802 8 bits Odd 2
(Note) “8N1” is displayed only when
“private” is changed to “MODBUS”.
: Checksum ON
: Checksum OFF
(Note) No display appears for the
MODBUS protocol.
Pressing for each programming
executes temporary storing. Pressing
for 2 seconds or more executes storing
and returns to the operation screen.
If the screen returns to the operation
screen before pressing , the
parameter is returned to the parameter
before programming.
NO
Address
Transmission speed
Characters
2 sec. or more
2 sec. or
more
A
2 sec. or more Communications type check
Address programming range
Transmission speed selection
ran
g
e
Character selection
Checksum selection range
From “ temporarily stored” to
“stored”
Returning to operation screen
SHIFT
－
(
-
)
DISP
SHIFT
－
(
-
)
YES
ENTRY
SET
END
0
CLEAR
9
LIST
ENTRY
DISP
%
/
ENTRY
DISP
%
/
ENTRY
DISP
%
/
Checksum
ENTRY
DISP
ENTRY
DISP
ENTRY
Reference 1
Reference 2
Reference 3
Reference 4
Reference 5
Reference 6
Reference 7
A
A
A
A
A
2 sec. or
more
2 sec. or more
Ref. 5
Ref. 6
Ref. 4
Ref. 3
Ref. 2
Ref. 1
Ref. 7