26
Wiring Terminals
Section 2-2
Communications
RS-485
• When communications are to be used with the following models, connect
communications cable across terminals 11 and 12. Option unit with RS-
485 communications is required to be mounted.
Specify both ends of the transmission path including the host computer as
end nodes (that is, connect terminators to both ends).
The minimum terminal resistance is 54
Ω
.
Communications Unit Connection Diagram
• The RS-485 connection can be either one-to-one or one-to-N. A maxi-
mum of 32 Units (including the host computer) can be connected in one-
to-N systems. The maximum total cable length is 500 m. Use AWG24
(cross-sectional area: 0.205 mm
2
) to AWG14 (cross-sectional area:
2.081 mm
2
) shielded twisted-pair cable.
EV1
EV2
+
−
+
EV1
EV2
E5CZ-
@
2M
@@
with
E53-CZB or
E5AZ-
@
3
@
M
@@
E5EZ-
@
3
@
M
@@
+
−
+
with E53-AZB
E53-CZHB
E5AZ-
@
3
@
M
@@
11
12
RS-485
A (
−
)
B (+)
E5EZ-
@
3
@
M
@@
with E53-AZ03
E5CZ-
@
2M
@@
with E53-CZ03 or
E53-CZH03
No.
12
11
A (
−
)
B (+)
A (
−
)
B (+)
RS-485
−
+
FG
No.
12
11
RS-485
E5
@
Z (No. 1)
E5
@
Z (No. 31)
RS-485
Host computer
Shield
Terminator (120
Ω
, 1/2 W)
Abbreviation
Abbreviation
A < B: [1] Mark
A > B: [0] Space
Cross-sectional area of
conductor
AWG24: 0.205 mm
2
AWG14: 2.081 mm
2
Содержание E5AZ
Страница 2: ...E5CZ E5CZ U E5AZ E5EZ Digital Temperature Controller User s Manual Produced September 2008 ...
Страница 3: ...iv ...
Страница 23: ...xxiv ...
Страница 53: ...30 Using the Support Software Port Section 2 3 ...
Страница 79: ...56 Using HB and HS Alarms Section 3 10 ...
Страница 115: ...92 Output Adjustment Functions Section 4 14 ...
Страница 173: ...150 Communications Setting Level Section 5 8 ...
Страница 205: ...182 Index precautions 22 terminal arrangement 21 terminals 21 ...