Communications Specifications - Omron E5CN Datasheet

USB-Serial Conversion Cable
Applicable OS Windows 2000, XP, or Vista
Thermo Mini, CX-Thermo version 4.0 or
Applicable software
higher
E5AN/E5EN/E5CN/E5CN-U/E5AN-H/
Applicable models
E5EN-H/E5CN-H
USB interface standard Conforms to USB Specification 1.1.
DTE speed 38400 bps
Computer: USB (type A plug)
Connector
Temperature Controller: Setup Tool port
specifications
(on bottom of Controller)
Bus power (Supplied from USB host
Power supply
controller.)
Power supply voltage 5 VDC
Current consumption 70 mA
Ambient operating
0 to 55°C (with no condensation or icing)
temperature
Ambient operating
10% to 80%
humidity
20 to 60°C (with no condensation or
Storage temperature
icing)
Storage humidity 10% to 80%
Altitude 2,000 m max.
Weight Approx. 100 g
Note: A driver must be installed in the personal computer. Refer to
installation information in the operation manual for the
Conversion Cable.

Communications Specifications

Transmission line
RS-485: Multipoint
connection method
Communications RS-485 (two-wire, half duplex)
Synchronization
Start-stop synchronization
method
Protocol CompoWay/F, SYSWAY, or Modbus
1200, 2400, 4800, 9600, 19200, 38400, or
Baud rate
57600 bps
Transmission code ASCII
Data bit length ✽
7 or 8 bits
Stop bit length ✽
1 or 2 bits
Vertical parity (none, even, odd)
Frame check sequence (FCS) with SYSWAY
Error detection
Block check character (BCC) with
CompoWay/F or CRC-16 Modbus
Flow control None
Interface RS-485
Retry function None
Communications
217 bytes
buffer
Communications 0 to 99 ms
response wait time Default: 20 ms
✽ The baud rate, data bit length, stop bit length, and vertical parity can
be individually set using the Communications Setting Level.
10
Basic-type Digital Temperature Controller
Current Transformer (Order Separately)
Ratings
Dielectric strength
Vibration resistance 50 Hz, 98 m/s
Weight
Accessories
(E54-CT3 only)
Heater Burnout Alarms, SSR Failure
Alarms, and Heater Overcurrent Alarms
CT input
(for heater current de-
tection)
Maximum heater current 50 A AC
Input current indication
accuracy
Heater burnout alarm
setting range ✽1
SSR failure alarm set-
ting range ✽2
Heater overcurrent
alarm setting range ✽3
✽1. For heater burnout alarms, the heater current will be measured
when the control output is ON, and the output assigned to the
alarm 1 function will turn ON if the heater current is lower than the
set value (i.e., heater burnout detection current value).
✽2. For SSR failure alarms, the heater current will be measured when
the control output is OFF, and the output assigned to the alarm 1
function will turn ON if the heater current is higher than the set
value (i.e., SSR failure detection current value).
✽3. For heater overcurrent alarms, the heater current will be
measured when the control output is ON, and the output assigned
to the alarm 1 function will turn ON if the heater current is higher
than the set value (i.e., heater overcurrent detection current
value).
Electrical Life Expectancy Curve for
Relays (Reference Values)
500
300
100
50
30
10
5
E5CN
250 VAC, 30 VDC
3
(resistive load)
cos = 1
1
0 1 2
Note: Do not connect a DC load to a Controller with a Long-life Relay
Output.
E5CN/E5CN-U
1,000 VAC for 1 min
2
E54-CT1: Approx. 11.5 g, E54-CT3: Approx.
50 g
Armatures (2)
Plugs (2)
Models with detection for single-phase
heaters: One input
Models with detection for single-phase
or three-phase heaters: Two inputs
5% FS 1 digit max.
0.1 to 49.9 A (in units of 0.1 A)
Minimum detection ON time: 100 ms
0.1 to 49.9 A (in units of 0.1 A)
Minimum detection OFF time: 100 ms
0.1 to 49.9 A (in units of 0.1 A)
Minimum detection ON time: 100 ms
3 4 5 6
Switching current (A)