Delta DTM Series User manual

Foreword
DTM temperature controller operating manual
Precautions
Because this product is an open device, it must be installed in a dustproof, moisture-
resistant,
shock/impact-resistant case before use. Protective measures (such as only
special tools or a
key can open the case) should be used to prevent operation by non-
maintenance personnel or
accidental impacts, which may cause risk and damage.
Note: Please comply with the precautions in this user guide. If failure to comply with the
se
precautions and guidelines cause the controller or peripheral products to malfunction, this may
lead to such severe consequences as fire or shocks and even injury or death.
Note: Shock hazard! To avoid electric shocks, after the device has been
powered up, please do
not touch the AC power terminals. When checking the input power, make sure that power is off.
To avoid personal injury and damage to other equipment, because this product is an open
device, please avoid using in hazardous applicati
on situations. Please install this device on
equipment with fail safe protective devices.
This device is not equipped with a power switch or fuses. This products application system
should therefore have a switch or circuit-breaker, and the switch or circuit-
breaker must be in
locations easily accessible to operators and have clearly visible on-off markings.
To avoid the danger caused, in the same expansion cassette or I/O expansion module, when a
channel is connected to high voltage, other channels
cannot be connected to a safe low voltage
circuit.
Précautions
Comme ce produit est un appareil ouvert, il doit être installé dans un boîtier étanche à la
poussière, à lhumidité et aux chocs / chocs avant utilisation. Des mesures de protection
(telles
que seuls des outils spéciaux ou une clé peuvent ouvrir le boîtier) doivent être utilisées pour
empêcher le fonctionnement par du personnel non chargé de la maintenance ou des chocs
accidentels, qui peuvent entraîner des risques et des dommages.
Remarque: veuillez respecter les précautions de ce guide de lutilisateur. Si le non -
respect de
ces précautions et directives entraîne un dysfonctionnement du contrôleur ou des produits
périphériques, cela peut entraîner des conséquences graves comme un i
ncendie ou des chocs
et même des blessures ou la mort.
Remarque: risque délectrocution! Pour éviter les chocs électriques, une fois que lappareil a été
mis sous tension, veuillez ne pas toucher les bornes dalimentation CA. Lors de la vérification
de la puissance dentrée, assurez -vous que lalimentation est coupée.
Pour éviter des blessures corporelles et des dommages à dautres équipements, car ce produit
est un appareil ouvert, veuillez éviter de lutiliser dans des situations dapplication dange
reuses.
Veuillez installer cet appareil sur un équipement doté de dispositifs de protection à sécurité
intégrée.
Cet appareil nest pas équipé dun interrupteur dalimentation ou de fusibles. Le système

Foreword
DTM temperature controller operating manual
dapplication de ce produit doit donc avoir un
interrupteur ou un disjoncteur, et linterrupteur ou
le disjoncteur doit être dans des endroits facilement accessibles aux opérateurs et avoir des
marquages marche-arrêt clairement visibles.
Pour éviter le danger causé, dans la même cassette dextension ou le même module dextension
E / S, lorsquun canal est connecté à une haute tension, les autres canaux ne peuvent pas être
connectés à un circuit basse tension de sécurité.
1. Please use needle-type terminals with front-end crimping areas with a diameter smaller than
2.35mm. Avoid using excessive force when attaching wires to the terminals, and confirm that
wires are attached to the correct terminals.
2. If any dust or metal shavings get into the body of the device, this may cause faulty operation;
please install in a dustproof, moisture-resistant, shock/impact-resistant electrical case before
use.
3. Modifying or disassembling this controller without authorization may cause unforeseeable
errors or hazards. Do not use any extra empty terminals.
4. To avoid interference, avoid places with high voltages, high-frequency noise, or high electrical
currents during installation.
5. Avoid using this device in places where the following situations may occur:
(a) Where there are high levels of dust or corrosive or flammable gases; (b) High humidity
and condensation; (c) Vibration and impacts; (d) High radiation.
6. Make sure to turn off power before installing wiring or changing the temperature controller.
7. When extending or attaching thermocouple lead wires, be sure to use compensating lead
wires compatible with the thermocouple type.
8. When using three-wire type platinum measurement impedance body, make sure that the
diameters and lengths of the three wires are the same, which will reduce measurement error.
When extending or attaching platinum measurement impedance body lead wires, to avoid
affecting temperature values, be sure to use lead wires with the correct length and impedance.
9. To avoid interference from noise and inductance, be sure to use only short-distance wires
from temperature detectors to the body of the temperature controller. Make sure to separate
sensor wires from AC power lines and heavy load wires.
10. Before powering up the device, confirm that the power/ signal equipment are correct;
otherwise, there is risk of severe damage.
11. When powering up the device, take care not to touch or try to maintain terminals on the device,
which may cause electrical shocks.
12. When power is turned off for less than 1 min., because electricity in wires may not be fully
discharged, do not touch internal wiring or external terminals.
13. When maintaining the temperature controller, turn off power and use a dry cloth to clean the
surface of the device. To avoid damaged circuits and causing malfunction, do not open the
case and touch the internal circuits. Do not clean using acidic or alkaline liquids.
14. If using a measurement expansion module and I/O expansion module simultaneously, install
the I/O expansion module only after the measurement expansion module has been fully

Foreword
DTM temperature controller operating manual
installed.
15. To avoid possible damage due to different system voltages, confirm that the contacts on each
expansion cartridge or I/O expansion module are the same voltage as the system.
16. All measurement expansion modules, expansion cartridges, and I/O expansion modules must
be compatible with the DTM system.
17. When adding/replacing a measurement expansion module, I/O expansion module, or
expansion cartridge, make sure power has been shut off to the system, and power up the
system after installation. The products in this series do not support hot swapping; please
perform installation only after power has been turned off.
18. To avoid interference from noise and inductance, when using a CT sensor, measurement lead
wires should be kept far from the main DTM unit.
19. When inserting a cord-end terminal, be sure to use a straight screwdriver; maintain safety by
avoiding working with your bare hands.
Version revision history
Version
Content of revisions
Date issued
Ver. 1
Ver. 1 issued
2020/02/22
Ver. 2
Ver. 2 issued
2020/08/08
Ver. 3
Add Multi-loop control and modify CT function
2020/02/05

i
DTM Temperature Controller Operating
Manual V3.0
Contents
Chapter 1: Product Introduction
1.1 Product Overview .............................................................................................................1-1
1.2 Product Features ..............................................................................................................1-1
1.3 External Appearance of Product and Names of Parts ...................................................1-2
1.4 Purchase Information .......................................................................................................1-3
1.5 Product Dimensions .........................................................................................................1-4
Chapter 2: Specifications and System Configuration
2.1 Electrical Specifications ..................................................................................................2-1
2.2 Temperature Sensor Type and Temperature Range .......................................................2-2
2.3 Performance .....................................................................................................................2-3
2.4 Station Number Settings ..................................................................................................2-4
2.5 RS485/USB Communications Protocol Settings ............................................................2-6
2.5.1 USB Function ...........................................................................................................2-6
2.6 Ethernet Communications Protocol Settings .................................................................2-7
2.6.1 Function .....................................................................................................................2-7
2.6.2 Functional Specifications............................................................................................2-7
2.6.3 MODBUS TCP Communication Standards.................................................................2-9
2.6.4 Troubleshooting..........................................................................................................2-9
2.7 Initial Power on State .......................................................................................................2-10
2.7.1 Light Display Status .................................................................................................2-10
2.7.2 RUN/STOP Status at Power ON ..............................................................................2-11
2.8 Definitions of Commonly Used Terms ............................................................................2-12
2.9 Restoring Default Settings ...............................................................................................2-12
Chapter 3: Input Function Configuration
3.1 Input Functions ................................................................................................................3-1
3.1.1 Input Function Settings ............................................................................................3-1
3.1.2 Input Type, Range, and Corresponding Communications Content ...........................3-2
3.1.3 Read the Present Value and Setpoint Value .............................................................3-3
3.1.4 Analog Input (Voltage, Current) Applications ............................................................3-4
3.2 Operating Interface ...........................................................................................................3-4
3.2.1 Temperature Filter and Input Error Settings ..............................................................3-4

ii
3.2.2 Input Error Settings ................................................................................................. 3-4
3.3 Other Input Function Settings ........................................................................................ 3-5
3.3.1 Channel Disabled .................................................................................................... 3-5
3.3.2 Temperature Units ................................................................................................... 3-5
3.3.3 Cold Junction Compensation Selection ................................................................... 3-6
3.3.4 Input channel status ................................................................................................ 3-7
Chapter 4: Output and Alarm Function Configuration
4.1 Output Functions ............................................................................................................. 4-1
4.1.1 Explanation of Output Functions .............................................................................. 4-1
4.1.2 Physical Output Type .............................................................................................. 4-1
4.1.3 Output Function Settings ......................................................................................... 4-1
4.1.4 Output peak shift function setting ............................................................................ 4-2
4.2 Assign the Addresses for I/O Expansion Module .......................................................... 4-2
4.3 Alarm Functions .............................................................................................................. 4-3
4.3.1 Explanation of Alarm Functions ............................................................................... 4-3
4.3.2 Alarm Function Settings .......................................................................................... 4-5
4.4 Other Output Function Settings ..................................................................................... 4-7
4.4.1 Output Level When Input Sensor Error .................................................................... 4-7
4.4.2 Analog Output Compensation Adjustment ............................................................... 4-7
Chapter 5: Control Functions and Operating Instructions
5.1 Control Functions ............................................................................................................ 5-1
5.1.1 Explanation of Control Functions ............................................................................. 5-1
5.1.2 Control Function Settings ........................................................................................ 5-5
5.2 Multiple-group PID Option Settings ................................................................................ 5-9
5.2.1 Selection of a PID Group ......................................................................................... 5-9
5.2.2 Group Parameter Settings ....................................................................................... 5-9
Chapter 6: Operating Instructions for Other Auxiliary Functions
6.1 Self-definition of Functions (Default) ............................................................................. 6-1
6.1.1 Explanation of Self-definition of Functions (Default) ................................................ 6-1
6.1.2 Settings for Self-definition of Functions (Default) ..................................................... 6-1
6.2 Self-definition of Functions (Self-defined) ..................................................................... 6-4
6.2.1 Explanation of Self-definition of Functions (Self-defined) ......................................... 6-4
6.2.2 Settings for Self-definition of Functions (Self-defined) ............................................. 6-4
6.3 CT alarm functions .......................................................................................................... 6-7
6.3.1 Explanation of CT alarm functions ........................................................................... 6-7
6.3.2 CT alarm function settings ....................................................................................... 6-7

iii
6.4 Multi-loop control function ................................................................................................6-11
6.4.1 Enable Multi-loop control function ............................................................................6-11
6.4.2 Input channel assignment description ........................................................................6-12
6.4.3 Auto multi-loop control function description ................................................................6-13
6.4.4 Manual multi-loop control function .............................................................................6-14
6.4.5 Auxiliary SV and auxiliary output percentage .............................................................6-15
6.4.6 Read the auxiliary output percentage of the output channel.......................................6-16
6.5 DTM-DOX ............................................................................................................................6-17
6.5.1 Control output ............................................................................................................6-17
6.5.2 Control input ..............................................................................................................6-17
6.5.3 Indicator LED.............................................................................................................6-17
6.5.4 Manual multi-loop control function .............................................................................6-17
Chapter 7: Appendix
7.1 RS485 Communications ...................................................................................................7-1
7.1.1 Comm. commands for DTM Host and Measurement Expansion Module .................7-1
7.1.2 Operating Commands for Expansion Cassette Series ..............................................7-7
7.1.3 DTM-DOx Series Accessory Operating Commands .................................................7-7
7.1.4 DTM-CT Series Accessory Operating Commands ...................................................7-8
7.1.5 Programmable Control Planning Table Parameter Settings ......................................7-9
7.1.6 PID Group Parameter Settings .................................................................................7-10
7.1.7 Modbus Communications Function Code .................................................................7-11
7.2 Installation method ...........................................................................................................7-14
7.2.1 Host .........................................................................................................................7-14
7.2.2 Expansion Cassette .................................................................................................7-15
7.2.3 Measurement Expansion Module, I/O Expansion Module ........................................7-17
7.2.4 Installation Guidelines ..............................................................................................7-18
7.2.5 Terminal Configuration Diagram ...............................................................................7-19
7.3 Ethernet/ IP Software Setting ...........................................................................................7-21
7.3.1 Setting up Communication and Searching for Modules in DCISoft ...........................7-21
7.3.2 Basic Settings............................................................................................................7-26
7.3.3 Network Settings........................................................................................................7-28
7.3.4 IP Filter ......................................................................................................................7-30
7.3.5 Security .....................................................................................................................7-31
7.3.6 Returning to Default Settings .....................................................................................7-32
7.3.7 Application Examples ................................................................................................7-33
7.4 Product service ..................................................................................................................7-38

Chapter 1: Product Introduction
DTM temperature controller operating manual
1-1
Chapter 1
Product Introduction
1.1 Product Overview
The DTM host provides 8 inputs to connect sensors, can simultaneously measure the temperature at 8
points and control 8 different outputs, and can rely on peripheral expansion modules with various I/O
functions to add output control channels or alarm control channels.
The DTM series includes: The host, measurement expansion module, I/O expansion module, and
expansion cartridge. A DTM group can include a maximum of one host linked with 7 measurement
expansion modules and 8 I/O expansion modules, and can control the 64 points temperature; RS485 or
Ethernet can be used to link multiple DTM
groups, which can realize temperature
control over hundreds points.
1.2 Product Features
The DTM series is a multi-loop modular temperature controller, and its modular design can facilitate
installation and application by users. The host collects data and input channels are isolated from each other
for high communication efficiency and measurement stability. Users can also define functions, and assign
communications function addresses.
A modular design simplifies wiring installation.
Expansion models with various functions can meet the needs of different applications.
Data collection by the host enhances information exchange performance.
Supports RS485 and Ethernet communications, and multi-point temperature control.
A communication function address self-definition function.
Channels are completely isolated from each other.
Each input channel can support multiple type sensors.

Chapter 1: Product Introduction
DTM temperature controller operating manual
1-2
1.3 External Appearance of Product and Names of Parts
Measurement Host
Serial
No.
Name
1
LED status light
2
RJ45 connector(left)/ Mini USB
connector(right)
3
Node number selection dial
4
Sensor input terminal
5
Protective cover of expansion output port
6
DIN rail fastener
7
RS485 communications terminal
8
Power input terminal
9
Side protective cover
10
Output cartridge fastener
11
Expansion channel guide
Measurement expansion module
Serial
No.
Name
1
LED status light
2
Mini USB connector
3
Node number selection dial
4
Sensor input terminal
5
Protective cover of expansion output port
6
DIN rail fastener
7
Adapter protective cover
8
Output cartridge fastener
9
Expansion channel guide
10
Expansion channel guide
I/O expansion module /DTMN02-x Expansion cassette
Serial
No.
Name
Serial
No.
Name
1
LED status light
1
Output terminal
2
Node number
selection dial
3
Output / input
terminal
4
DIN rail
fastener
5
Adapter
protective cover
6
Expansion
channel guide
7
Expansion
channel guide

Chapter 1: Product Introduction
DTM temperature controller operating manual
1-3
1.4 Purchase Information
Series name
Deltas DTM series temperature controller (includes side protective cover)
1 Communications
interface
R = USB + RS485
E = Ethernet + RS485
2 Number of input
channels
04 = 4 channel
08 = 8 channel
3 Derivative device
types Blank = standard product
Series name
Delta DTM series temperature control measurement expansion module
1 Communications
interface
N = None (N is the measurement expansion module without external
communications)
2 Number of input
channels
Code 1 = N
02 = 2 channel
04 = 4 channel
08 = 8 channel
3 Optional functions
Only Code 2 = 02 has the following selection,
-C = 4CH linear current output (source type)
-L = 4CH linear voltage output
-R = 4CH relay output
-V = 4CH DC voltage pulse output (source type)
Series name
Delta DTM series temperature control accessories
1 Module type
BD = expansion cassette
DO = output expansion module
CT = CT sensor input
2 Specifications
Code 1 = BD device type:
C = 4CH linear current output (source type)
L = 4CH linear voltage output
R = 4CH relay output
V = 4CH pulse volt output (source type)
Code 1 = DO device type:
C = 8CH linear current output (source type)
L = 8CH linear voltage output
R = 8CH relay output
V = 8CH pulse volt output (source type)
X = 16CH open drain output
Code 1 = CT device type:
030 = 30A (default input range), 8CH CT input
(CT sensor is an optional accessory)
Notes:
1. The standard configuration of the DTM host and measurement expansion module at time of shipping has no
expansion cassette, which may be selected by the customer.
2. DTM series comes with all needed cord-end terminals.

Chapter 1: Product Introduction
DTM temperature controller operating manual
1-4
1.5 Product Dimensions
Measurement Host (units: mm)
Measurement expansion module (units: mm)
I/O expansion module (units: mm)

Chapter 2: Specifications and System Configuration
DTM temperature controller operating manual
2-1
Chapter 2
Specifications and System Configuration
2.1 Electrical Specifications
Input power 24V DC
Operating voltage
90% ~ 110% of rated voltage
Power
consumption
Host Max. (maximum number of channels ) 6W + 5W × number of measurement
expansion modules in parallel + 3W × number of I/O expansion module in parallel
Expansion cassette power consumption is already included in the host or
measurement expansion module
Installation
requirement
Please install according to the sequence【Host → measurement expansion
modules (Max. 7 modules)→ I/O expansion modules (Max. 8 modules)】If the
measurement expansion modules include DTMN02-x series, be sure to install
DTMN08 / N04 before installing DTMN02-x,
Each DTM group can only expand one DTMN02-x measurement expansion
module
Input sensor
support
Thermocouple : K, J, T, E, N, R, S, B, L, U, TXK, C
RTD: Pt100, JPt100, Ni120, Cu50
Analog input: 0 - 10V, 0 - 5V, 0 - 50mV, 0 - 20mA, 4 - 20mA
Sampling
frequency
0.1 sec./all 8 inputs
Control mode
PID, programmable PID design, ON/OFF, manual
Output types
Relay output, SPST, rated maximum load of AC 250V, 2A resistive load.
Voltage pulse output, DC 12V±10%, rated maximum output current of 20mA.
Analog current output 4~20mA (load impedance must be ≦500Ω)
Analog voltage output 0~10V (load impedance must be ≧1,000Ω)
Open drain output, maximum load 30mA/5~24VDC, only for driving SSR.
Input accessory
types
When there is an optional CT device, the customer should select a current
transformer (CT), with selection information as follows:
1. 30A CT model: DT3-CT30A; 2. 100A CT model: DT3-CT100A, resolution of 0.1A
Output functions
(optional)
Optional control output, alarm output, or proportional output (must have an optional
output device type)
Alarm function
(optional) 17 alarm modes may be selected (must have an optional output device type)
Communications
functions
RS-485 communications: support baud rates of 4800/9600/19200/38400/57600/
115200bps
Ethernet communications: supports 10/100Mbps, MDI/MDI-X automatic detection,
1 Port, RJ45
USB communications: supports USB 2.0 Full Speed only for the host

Chapter 2: Specifications and System Configuration
DTM temperature controller operating manual
2-2
Communication
protocol
RS485: support the Modbus protocol with RTU/ASCII communications format
Ethernet: support Modbus TCP and Ethernet/IP, IEEE802.3, IEEE802.3u
transmission method
USB: support USB2.0 communications standard
Transmission cable
(Ethernet)
Category 5e shielding 100M
Internal connection
functions
Provides internal connection terminals with 24V power and communications signal
provided
Vibration
resistance 10 - 55Hz; 10m/s2; 3-axial directions; 10 min.
Shock resistance
Maximum of 300m/s2; 3-axis, 6-directions; 3 times each
Operating
temperature 0°C - +50°C
Storage
temperature -20°C - +65°C
Operating altitude
Below 2,000 meters above sea level
Operating humidity 35% to 85% RH (no dew)
Pollution level 2
2.2 Temperature Sensor Type and Temperature Range
Input sensor type
Communication
register value
Temperature
range
Input sensor type
Communication
register value
Temperature
range
Thermocouple K
type
0
-200 -1300°C
Thermocouple TXK
type
10 -150 - 800°C
Thermocouple J
type
1
-100 -1200°C
Platinum resistance
(JPt100)
11 -20 - 400°C
Thermocouple T
type
2
-200 - 400°C
Platinum resistance
(Pt100)
12 -200 - 850°C
Thermocouple E
type
3
0 - 600°C
RTD
sensor (Ni120) 13 -80 - 300°C
Thermocouple N
type
4
-200 -1300°C
R
TD sensor (Cu50) 14 -50 - 150°C
Thermocouple R
type
5
0 - 1700°C
Analog voltage input
(0-5V)
15 -1999 ~ 19999
Thermocouple S
type
6
0
- 1700°C
Analog voltage input
(0-10V)
16 -1999 ~ 19999
Thermocouple B
type
7
100
- 1800°C
Analog current input
(0-20m A)
17 -1999 ~ 19999
Thermocouple L
type
8
-
200 - 850°C
Analog current input
(4-20m A)
18 -1999 ~ 19999
Thermocouple U
type
9
-
200 - 500°C
Analog voltage input
(0-50m V)
19 -1999 ~ 19999
Thermocouple C
type
20
0 -2300°C*
*Note: When the C-type sensor input is switched to Fahrenheit temperature unit, the upper limit of the display
range is 3270°F.

Chapter 2: Specifications and System Configuration
DTM temperature controller operating manual
2-3
2.3 Performance
Temperature
display precision
Thermocouple : ±(0.3% FS, +1℃)
Platinum measurement resistance: ±(0.2% FS, +1℃)
Analog input
precision
0 to 5 VDC: ±(0.3% of reading, +0.03V)
0 to 10 VDC: ±(0.3% of reading, +0.03V)
0 to 20 mA: ±(0.3% of reading, +0.05mA)
4 to 20 mA: (0.3% of reading, +0.04mA)
0 to 50 mV: ±(0.3% of reading, +0.1mV)
CT input precision
CT input: ±(5% of span)
Limitation and
effect of wires
resistance
Thermocouple：affected by wires resistance
K, J, T, E, N, L, U, TXK: .1℃(0.2°F) /Ω
B, R, S: 0.2°C/Ω max.
RTD：under 10Ω for each wire
Notes: FS = Full Scale

Chapter 2: Specifications and System Configuration
DTM temperature controller operating manual
2-4
2.4 Station Number Setting
In a DTM group, communications between the host and expansion modules is conducted via an internal
communications bus; and communications with a host computer is conducted via the DTM hosts RS485,
Ethernet, or USB. The hosts station number selection dial is therefore the RS485 station number setting,
and the station number when the DTM host is employing internal communications is 0, which indicates that
the communications protocol setting is also the setting for communications between the DTM hosts RS485
and the host computer. The station number selection dial for each expansion module is the internal station
number four the groups internal communications; the communications protocol is defined as the internal
protocol between the DTM host and its expansion modules, and users need only set the internal station
number; however, users must remember that the station number of expansion modules with the same
attributes cannot be repeated. The station numbers of expansion modules with different attributes may be
the same, and this will not affect their function. The new settings will take effect when the DTM host is
powered on again after the external switch has been reset.
Module function
Station number
selection dial
functions
Corresponding
station number
Measurement
host
RS485 station
number
1-F, 0=1 0Hex
Measurement
expansion module
Internal station
number
1~F, 0= invalid
I/O expansion
module (DO)
Internal station
number
1~F, 0= invalid
I/O expansion
module (CT)
Internal station
number
1~F, 0= invalid
Setting range: 0-F
Default settings: 1

Chapter 2: Specifications and System Configuration
DTM temperature controller operating manual
2-5
Example: The following figure illustrates a set of normal operating DTM group station number settings,
DTME08 node no. dial 2 RS485 station number 2 Internal station number 0;
DTMN08 node no. dial 2&A No external communication Internal station number 2 & A; different
from DO & CT expansion module type →station number can be the same
DTM-DOV node no. dial 2 No external communication Internal station number 2; different
from the measurement expansion module & CT expansion module →the station number can be the same
DTM-DOR node no. dial CNo external communication Internal station number C;
DTM-CT030 node no. dial 2 No external communication Internal station number 2; different
from the measurement expansion module & DO expansion module →the station number can be the same
And the measurement expansion module 2 sets ≦7 sets, the IO expansion module (DO + CT) 3 sets ≦
8 sets, in line with the maximum number of expansion sets of the DTM group

Chapter 2: Specifications and System Configuration
DTM temperature controller operating manual
2-6
2.5 RS485/ USB Communications Protocol Settings
Bit 5 Bit 6 Bit 7
Communication
s protocol
format
OFF OFF OFF
7, E, 1 (default
value)
Bit 1
Communications encoding
ON
OFF
OFF
7,O,1
OFF
ASCII ( default value)
OFF
ON
OFF
7,N,1
ON
RTU
ON
ON
OFF
8,E,1
OFF
OFF
ON
8,O,1
Bit 2 Bit 3 Bit 4
Communicatio
ns rate (bps)
ON OFF ON 8,N,1
OFF OFF OFF
38400 (default
value)
OFF ON ON 7,N,2
ON
OFF
OFF
57600
ON
ON
ON
8,N,2
OFF
ON
OFF
115200
ON ON OFF 19200 Bit 8
Communications address
special code
OFF OFF ON 9600 ON
The communications address is
the switch setting address plus
64
ON OFF ON 4800 OFF
Maintains original set
communications address
(default value)
2.5.1 USB Function
DTMR series host models have a USB communication, which can be connected via DTM soft (software
and operation manual can be downloaded from Delta website). USB connection is only used for parameter
or function setting, because USB has no signal isolation, it cannot be used for long-term monitoring.
Communications protocol
setting switch
Communications protocol setting table
Default settings: All OFF
ASCII 38400,7,E,1

Chapter 2: Specifications and System Configuration
DTM temperature controller operating manual
2-7
2.6 Ethernet Communications Protocol Setting
DTME series models are Ethernet communication modules. IP addresses can be set through DCISoft (see
Chapter 7: Appendix for installation paths and usage methods for details). DTME series models
have the function of IP filtering. In addition, under the MDI / MDI-X automatic detection function, there is no
need to jumper when using the network line. The following will introduce the DTME series models in more
detail.
IP settings 192.168.1.5
Port setting: 502
2.6.1 Function
Automatically detect 10/100 Mbps transmission rate
MDI / MDI-X automatic detection
Support Modbus TCP communication protocol
Support EtherNet / IP Explicit message
Support EtherNet / IP I/O connection implicit message
Support software version: EIP Builder V1.07 or above
2.6.2 Functional Specifications
Interface
Items Specifications
Interface RJ-45 with Auto MDI/MDIX
Port number 1 Port
Transmission method IEEE802.3, IEEE802.3u
Cables Category 5e shielding 100M
Speed 10/100 Mbps Auto-Defect
Protocol ICMP, IP, TCP, UDP, DHCP, BOOTP, Modbus
TCP, EtherNet/IP, Delta Configuration
Modbus TCP
Items Specifications
Normal Device type Server
Maximum number of
connections 4
Maximum data length for a
single connection 100 Words

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DTM temperature controller operating manual
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EtherNet/IP
Items Specifications
Normal Device type Adapter
Topology support Star
CIP Service
type_ IO
Connection
Maximum number of CIP
connections
(Number of communication
lines that can be connected)
8 (Servers)
Maximum number of TCP
connections
(Number of devices that can
be connected)
8 (Servers)
Packet transmission interval
(Can be set interval time) 5 ms ~ 1000 ms
Maximum communication
capacity 400 pps
Maximum data length for a
single connection 500 bytes
CIP Service
type_ Explicit
Message
Class 3
(Connected type)
Identity Object (16#01)
Message Router Object
(16#02)
Assembly Object (16#04)
Connection Manager Object
(16#06)
TCP/IP Interface Object
(16#F5)
Ethernet Link Object (16#F6)
DTM Data Object (16#301)
Does not support custom
objects
Object For component
contents, please refer to
appendix
UCMM (Unconnected Type,
Only occupy TCP
connection)
Support CIP objects

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DTM temperature controller operating manual
2-9
2.6.3 MODBUS TCP Communication Standards
1. The supported function codes and communication addresses are the same as RS485. Please refer to
the RS485 communication section in Appendix A.
2. Since DTME08 / E04 is an IP address resolution machine, when editing communication instructions,
the address of its RS485 station number can be written to any value.
Example: If you want to use the Ethernet Modbus of DTME08 for communication function to read the
PV value of 8 channels, you can issue the command [FF 03 0268 0008]. The “FF” part can be modified
to any value. Only when using RS485 for communication, you need to confirm the station. The value
of the number selector (see section 2.4).
2.6.4 Troubleshooting
Fault conditions cause of issue Troubleshooting method
No modules
found
DTME Not connected to the network
Please check if DTME is properly connected
to the network
Computer and DTME are in different
networks, blocked by network firewall
Please use the specified IP to find the
relevant settings
Cannot open
DTME settings
page
DTME Not connected to the network Please check if DTME is properly connected
to the network
DCISoft communication setting error Please check if the communication setting of
DCISoft is Ethernet
Computer and DTME are in different
networks, blocked by network firewall
Please use the specified IP to find the
relevant settings

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DTM temperature controller operating manual
2-10
2.7 Initial Power on State
When the DTM has a main station collection function, it enters the initialization state after power on, and
the host will collect the setting parameters of each expansion module via the internal communications bus,
which will take approximately 30 sec. External communications interfaces (including RS485, USB, Ethernet)
will be unable to communicate at this time.
2.7.1 Light Display Status
PWR (Power): Power light (green light)→ power light [on steadily], indicates that the device is
powered up.
RUN (output Run): Control light (green light)→ control light [on steadily], indicates that control is
effective through any one channel.
COM (Communication): Communications light (green light)→ communications light [flashing],
indicates that the host is communicating.
ERR (Error): Error indicator light (red light)→
Error indicator light [flashing], indicates internal communications error; possible situations:
1. There are more than 7 measurement expansion modules
2. Measurement expansion modules of the same type have the same internal station number
3. Error in reading of measurement expansion module by the host via the internal
communications bus
Error indicator light [ON steadily], indicates that there is some other error, and the output must be
turned off; possible situations:
1. Input temperature value is unstable (any input point)
2. Sensor input line is severed or not connected (any input point)
3. Input sensor error (any input point)
4. Input hardware malfunction (any input point)
5. Memory EEPROM error
6. Input exceeds setting range (any input point)
When the error indicator light comes on, a communication method can be used to inspect the
communications content from the corresponding address to determine the error status. The
communications address and content are as shown in the following table; the bit number corresponds to
the error content, Bit0~7 = 0 = normal; Bit0~7 = 1 = abnormal (see error content in the following table):