Omron E5EC Communications Manual

1 Communications Methods
1 - 4
E5@C Digital Temperature Controllers Communications Manual (H175)
When the host transmits a command frame, the E5@C transmits a response frame that corresponds to
the command frame. A single response frame is returned for each command frame. The following dia-
gram shows the operation of the command and response frames.
Communications with the host are carried out through a standard RS-485 interface. Use a K3SC Inter-
face Converter for RS-485 interface conversion.
1-1-3 Transmission Procedure
1-1-4 Interface
E5@C
Command frame
Command frame
Response frame
Host
Allow a wait time of at least 2 ms before the next command is sent after the host
receives a response from the E5@C.

Omron E5EC Specifications

General

Mounting Type	Panel Mount
Display Resolution	0.1°C or 1°C
Control Method	ON/OFF
Input Type	Thermocouple, RTD, Analog voltage
Supply Voltage	100 to 240 VAC
Output Type	Relay, Voltage, Current
Size	48 x 96 mm
Control Output	Relay, Voltage, Current
Alarm Output	Relay
Communication	RS-485
Ambient Operating Temperature	-10 to 55°C
Ambient Operating Humidity	25 to 85% RH
Protection Rating	IP20