DeviceNet Communications Unit for Modular Temperature Controller EJ1-DRT 105
System Configuration
Specifications
DeviceNet Communications
Specifications
*1. Two blocks can be used (i.e., connections can be set) only when a CS/CJ-
series DeviceNet Unit is used as a Master.
When a C200HX/HG/HE DeviceNet Master Unit is used, the input area will be
one block with up to 100 words (200 bytes)
(poll connections only).
*2. When a C200HX/HG/HE DeviceNet Master Unit is used, a maximum of 32
words can be allocated per node.
*3. Batch settings can be made for target values, alarm set values, PID constants,
and other parameters for Temperature Controllers.
Power
supply
voltage
DeviceNet
power
supply
24 VDC (for internal circuits)
EDU power
supply
24 VDC (for RS-485 communications circuits and
Temperature Controllers)
Allowable
voltage
range
DeviceNet
power
supply
11 to 25 VDC
EDU power
supply 20.4 to 26.4 VDC
Power consumption
(under maximum load) 1 W max.
Insulation resistance 20 M min. (at 500 VDC)
Dielectric strength 600 VAC, 50/60 Hz for 1 min
Vibration resistance 10 to 55 Hz, 10 m/s2 for 2 hours each in X, Y, and Z
directions
Shock resistance 150m/s2 max., 6 directions, 3 times each
Weight 70 g max.
Degree of protection IP20
Main functions
Remote I/O communications, explicit message
communications, CompoWay/F command feed-
through function, parameter backup function, and
configuration registration
Ambient operating
temperature
Operating: -10°C to 55°C
Storage:
-25°C to 65°C (with no icing or condensation)
3 year warranty:
-10°C to 50°C (with no icing or condensation)
Ambient operating
humidity
Operating:
25% to 85% (with no condensation)
Memory protection EEPROM, 100,000 write operations (backup data)
Dimensions 20 x 90 x 65 mm (W x H x D)
G3ZA connection port
PC
EJ1N-HFUB-DRT
PLC
EJ1N-TC2 or TC4
Up to 16
(bridge connections supported) EJ1C-EDU
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
COM1
COM2
COM3
PWR
RUN
ERR
ALM
SW1
ON
SW2
21345678
EJ1-TC4
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
DeviceNet
Configurator
DeviceNet
Communications Unit
DeviceNet
SW2
SW1
ERROR
OCC
SD/RD
READY
SW2
SW1
ERROR
OCC
SD/RD
READY
SW2
SW1
ERROR
OCC
SD/RD
READY
G3ZA
(Up to 8 can be connected
per EJ1N-TC2 or EJ1N-TC4)
PC
NX-Server
EJ1N
DRT
MS
NS
TS
MAX
No.
NODE
ADR
COPY
123456
EDS
UP/DN
MODE
TC2/4
NO
×10
×1
0
5
4
3
2
9
8
7
1
1
6
0
5
4
3
2
9
8
7
6
4
3
2
1
F
0
E
D
C
B
A
9
8
7
6
5
Item Specifications
Communications protocol Conforms to DeviceNet
Communi-
cations
functions
Remote I/O
communica-
tions
• Master-Slave connection (polling, bit-strobe,
COS, cyclic)
• Conforms to DeviceNet communications
standards.
Simple I/O
allocations
• Allocation of input and output data using only
switch settings and not the Configurator.
• Allocation of only basic data, such as
Temperature Controller status, present values,
target values, and alarm output status.
• Input area: 1 block, 86 words max. (up to the
highest Communications Unit number)
• Output area: 1 block, 74 words max. (up to the
highest Communications Unit number)
I/O
allocations
using the
Configurator
• Allocate any I/O data using the Configurator.
• Allocation of user-set data, parameters specific to
DeviceNet Communications Units, and
Temperature Controller variable area data.
• Input area: 2 blocks, 100 words max. *1
• Output area: 1 block, 100 words max.
(The first word is always the Output Execution
Enabled Flags.) *2
Message
Communica-
tions
function
• Explicit message communications
• CompoWay/F communications commands can be
sent (commands are sent in explicit message
format).
Setting,
monitoring,
and
manipulating
from the
Configurator
Functions Supported by the DeviceNet Configurator:
(Using parameter editing or device monitoring for
DeviceNet Communications Units and Temperature
Controllers)
• Setting and monitoring DeviceNet
Communications Units.
• Registering connection configurations, making
initial settings *3, changing settings, and
monitoring for Temperature Controllers.
• Making allocations to the Master.
• Allocating data in input areas and output areas.
• Executing operation commands for Temperature
Controllers.
Connection form Combination of multi-drop method and T-branch
connections (for trunk and drop lines)
Baud rate DeviceNet: 500, 250, or 125 kbps
(automatic follow-up)
Communications media Special 5-wire cable
(2 signal lines, 2 power supply lines, 1 shield line)
Communications distance
The values in parentheses are for Thin Cable.
Communications power
supply 11 to 25 VDC
Maximum number of
nodes
64 (DeviceNet Configurator is counted as one node
when connected)
Maximum number of slaves
63
Error control checks CRC errors
DeviceNet power supply
Supplied from DeviceNet communications connector
(DeviceNet communications power and internal
circuit power for DeviceNet Communications Unit)
Applicable Temperature
Controllers
EJ1 Series (excluding the EJ1G)
TC4: EJ1N-TC4A-QQ and EJ1N-TC4B-QQ
TC2: EJ1N-TC2A-QNHB, EJ1N-TC2B-QNHB,
EJ1N-TC2A-CNB, and EJ1N-TC2B-CNB
Maximum number of
Temperature Controllers
that can be connected
16 (The maximum is 15, however, for side-by-side
connections. The 16th Unit is an End Unit for
distributed placement.)
Baud
rate
Network
length (max.)
Branch line
length
Total branch
line length
500
kbps
100 m max.
(100 m max.) 6 m max. 39 m max.
250
kbps
250 m max.
(100 m max.) 6 m max. 78 m max.
125
kbps
500 m max.
(100 m max.) 6 m max. 156 m max.