Omron E5C-T Series User Manual

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E5@C-T Digital Temperature Controllers User’s Manual (H185)
z Communications
RS-485
Models with an option number of 002 to 004, 008, 020, or 022 support RS-485 communications.
Connect the communications cable across terminals 13 and 14.
Communications Unit Connection Diagram
• The RS-485 connection can be either one-to-one or one-to-N. A maximum of 32 Units (including
the host computer) can be connected in one-to-N systems. The maximum total cable length is
500 m. Use a shielded, AWG24 to AWG18 (cross-sectional area of 0.205 to 0.823 mm
2
)
twisted-pair cable.
No.
14
13
No.
14
13
RS-485
E5C-T (No. 1)
RS-485
E5C-T (No. 31)
100 Ω
A (−)
B (+)
A (−)
B (+)
−
+
FG
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
AWG18: 0.823 mm
2

Omron E5C-T Series Specifications

General

Brand	Omron
Model	E5C-T Series
Category	Temperature Controller
Language	English