E5DC-800
47
Communications Specifications
*1 The baud rate, data bit length, stop bit length, and vertical parity
can be individually set using the Communications Setting Level.
*2 Modbus is a registered trademark of Schneider Electric.
Communications Functions
MELSEC is a registered trademark of Mitsubishi Electric Corporation.
KEYENCE is a registered trademark of Keyence Corporation.
*1 A Temperature Controller with version 2.1 or higher is required for
the FX Series or the KV Series.
*2 Both the programless communications and the component
communications support the copying.
Current Transformer (Order Separately)
Ratings
Heater Burnout Alarms and SSR Failure
Alarms
*1 For heater burnout alarms, the heater current will be measured when the
control output is ON, and the output 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 will turn ON if the heater current is
higher than the set value (i.e., SSR failure detection current value).
*3 The value is 30 ms for a control period of 0.1 s or 0.2 s.
*4 The value is 35 ms for a control period of 0.1 s or 0.2 s.
Electrical Life Expectancy Curve for
Control Output Relay (Reference Values)
Transmission line connection
method
RS-485: Multidrop
Communications RS-485 (two-wire, half-duplex)
Synchronization method Start-stop synchronization
Protocol CompoWay/F or Modbus
Baud rate *1 9,600, 19,200, 38,400, or 57,600 bps
Transmission code ASCII
Data bit length *1 7 or 8 bits
Stop bit length *1 1 or 2 bits
Error detection
Vertical parity (none, even, or odd)
Block check character (BCC)
with CompoWay/F or
CRC-16 with Modbus *2
Flow control None
Interface
RS-485
Retry function None
Communications buffer 217 bytes
Communications response
wait time
0 to 99 ms
Default: 20 ms
Program-
less
communi-
cations
*1
You can use the memory in the PLC to read and write E5@C
parameters, start and stop operation, etc.
The E5@C automatically performs communications with the
PLC. No communications programming is required.
Number of connected Digital Temperature Controllers: 32
max. (Up to 16 for the FX Series)
Applicable PLCs: OMRON PLCs
CS Series, CJ Series, CP Series, NJ Series, or NX1P
MELSEC Q Series, L Series, FX3 Series, or iQ-R Series
KEYENCE PLCs
KEYENCE KV Series
Component
Communi-
cations
*1
When Digital Temperature Controllers are connected, set
points and RUN/STOP commands can be sent from the Digital
Temperature Controller that is set as the master to the Digital
Temperature Controllers that are set as slaves.
Slope and offsets can be set for the set point.
Number of connected Digital Temperature Controllers: 32
max. (including master)
Copying
*2
When Digital Temperature Controllers are connected, the pa-
rameters can be copied from the Digital Temperature Control-
ler that is set as the master to the Digital Temperature
Controllers that are set as slaves.
E54-CT1
E54-CT3
E54-CT1L
E54-CT3L
Dielectric strength 1,000 VAC for 1 min 1,500 VAC for 1 min
Vibration resistance 50 Hz, 98 m/s
2
Weight
E54-CT1: Approx. 11.5 g,
E54-CT3: Approx. 50 g
E54-CT1: Approx. 14 g,
E54-CT3: Approx. 57 g
Accessories
E54-CT3 Only
Armatures (2)
Plugs (2)
None
CT input (for heater current
detection)
Models with detection for single-phase heat-
ers: 1 input
Maximum heater current 50 A AC
Input current
indication accuracy
±5% FS ±1 digit max.
Heater burnout alarm
setting range *1
0.1 to 49.9 A (in units of 0.1 A)
Minimum detection ON time: 100 ms *3
SSR failure alarm setting
range *2
0.1 to 49.9 A (in units of 0.1 A)
Minimum detection OFF time: 100 ms *4
500
300
100
50
30
10
5
3
1
0 1 2 3 4 5 6
Switching current (A)
E5DC-800
250 VAC, 30 VDC
(resistive load)
cosφ = 1
Life (× 10
4
operations)
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