d7000 series modbus tcp/ip ethernet interface modules

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D7000 SERIES MODBUS TCP/IP ETHERNET INTERFACE MODULES
D7000 FEATURES
• Complete data acquisition systems.
• Analog and Digital I/O models available.
• RJ-45 Ethernet 10/100MB interface.
• Modbus TCP/IP Ethernet Protocol.
• Up to 25 conversions per second.
• 500Vrms analog input or analog output isolation.
• 16-bit analog input measurement resolution.
• Continuous self-calibration; no adjustments required.
• Programmable analog input digital filters.
• Requires +10V to +30Vdc unregulated supply.
• Removable screw terminal plug connectors supplied.
• Peer-To-Peer communication
APPLICATIONS
• Process monitoring and control
• Remote data logging to any host computer
• Peer-To-Peer Communication
• Product testing
Copyright Dutile, Glines and Higgins Corporation, 2017. All Rights Reserved.
GENERAL DESCRIPTION
The D7000 series modules are a family of complete data
acquisition modules for use in process control systems. The
analog input models can measure process signals such as:
voltage, thermocouples, 4-20mA loops, and discrete contact
closures. The analog output models can generate voltage or
current signals for controlling annunciators or valves. The
digital input and output models can sense the state of
remote digital signals or control solid state relays Complete
data acquisition systems can be created with ease with the
D7000 modules and a host supervisory computer or
programmable logic controller.
The modules provide direct connection to a wide variety of
sensors and annunciators. They perform all signal
conditioning and linearization and contain no pots or DIP
switches. All user-selectable settings, such as ranges,
communications settings are stored in nonvolatile EEPROM,
which maintains these values even after power is removed.
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D7000 SPECIFICATIONS (typical at +25C and nominal power supply unless otherwise noted)
General
• Programmable digital filters in analog input modules.
• Max CMV, input to output at 115Vrms, 60hz: 500V rms.
• All setups stored in EEPROM.
• Software disable unused analog input channels.
Interface
• Communications via Modbus TCP/IP protocol.
• RJ-45 Ethernet 10/100MB Interface.
Power Requirements
• Unregulated +10V to +30Vdc.
• Protected against power supply reversals.
Environmental
• Temperature Range: Operating -25C to +70C.
• Storage: -25C to +85C.
• Relative Humidity: 0 to 95% non-condensing.
Warranty
• 12 months on workmanship and material.
Package, Dimensions and Connectors
• Case: ABS thermoplastic, UL-94-5VA rated.
• Dimensions: 6”x4”x1.5”, mounting holes 6.5” on center.
• Connectors: Screw terminal barrier plug (supplied).
• Replace plug with LMI Components 04238 Series.
MODULE SPECIFICATIONS
D7100 Voltage Inputs
• Seven differential voltage inputs.
• Ranges: 25mV, 50mV, 100mV, 1V, 5V, 10V.
• 16-bit ADC, 25/20 conversions per second.
• Accuracy: 0.05% of FS max.
• Span Tempco: 50ppm/C max.
• Input burnout protection to 250 Vac.
• Input impedance: 20Mmin.
• Power requirements: 1.4W.
D7200 Current Inputs
• Seven differential current inputs.
• Range: 20mA.
• 16-bit ADC, 25/20 conversions per second.
• Accuracy: 0.05% of FS max.
• Span Tempco: 50ppm/C max.
• Voltage drop: 2.0V max.
• Input Impedance: <100 Ohms (70 typical).
• Power requirements: 1.4W.
D7300 Thermocouple Inputs
• Seven differential thermocouple inputs.
• Thermocouple types: J, K, T, E, R, S, B, and C.
• Ranges:
J = -200760C
R = 01750C
K = -1501250C
S = 01750C
T = -200400C
B = 01820C
E = -1001000C
C = 02315C
All D7000 specifications are subject to change without notice.
Copyright Dutile, Glines and Higgins Corporation, 2017. All Rights Reserved.
D7300 Thermocouple Inputs (cont'd)
• Thermocouple Accuracy (error from all sources)
from 0-40C ambient: 
J, K, T, E = 1.5C max.
R, S, B, C = 3.5C max (300C to +F.S.).
• 16-bit ADC, 25/20 conversions per second.
• Input impedance: 20Mmin.
• Automatic cold junction compensation.
• Lead resistance effect: <40V per 350.
• Open thermocouple and over range indication.
• Input burnout protection to 250Vac.
• Power requirements: 1.4W.
D7400 Voltage, Thermocouple, Current Inputs
• Seven Differential voltage, thermocouple, current inputs.
• Specifications equal to D7100, D7200 and D7300 series.
D7500 Analog Outputs
• Two analog outputs.
• Programmable voltage or current ranges.
• Voltage Ranges: 0-10Vdc, 10Vdc.
• Current Ranges: 0-20mA, 4-20mA.
• 250 conversions per second.
• Accuracy: 0.1%
• 12-bit DAC resolution.
• Span Tempco: 25ppm/C max.
• Settling Time to 0.1% FS: 1mS.
• Communications Watchdog Timer.
• Current Output Compliance: +/-12Vdc.
• Voltage Output Drive: 5mA max.
• 8-bit ADC Analog output signal readback.
• Isolation 500Vac, output common to system ground.
• Current output burnout protected to 250Vac.
• Power requirements: 2.1W.
D7710 Digital Inputs
• 15 Digital Inputs.
• Internal 10K pull-up resistors on each bit.
• Accept direct switch closure.
• Logic “0” = <1Vdc, Logic “1” = >3.5Vdc.
• Input burnout to 30Vdc without damage.
• Isolation 500Vac, input common to system ground.
• Power requirements: Serial = 0.75W.
D7720 Digital Outputs
• 15 Open-collector outputs to 30Vdc, 100mA max.
• Vsat: +0.3Vdc max. at 100mA.
• Short circuit protection to 500mA.
• Communications Watchdog Timer.
• Digital Output update rate, 4.5Hz.
• Isolation 500Vac, output common to system ground.
• Power requirements: 1.0W.
D7730 Digital Inputs/Outputs
• 7 Inputs, 8 outputs to 30Vdc, 100mA max.
• Outputs, Vsat: +0.3Vdc max. at 100mA.
• Short circuit protection to 500mA.
• Communications Watchdog Timer.
• Digital Output update rate, 4.5Hz.
• Isolation 500Vac, output common to system ground
• Power requirements: 1.0W.
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GENERAL DESCRIPTION (Continued)
The D7000 series modules communicate with a host
computer using the Modbus TCP/IP ethernet protocol.
The Modbus TCP/IP ethernet protocol is widely
recognized throughout the data acquisition industry and
supported by almost all commercially available process
control programs and supervisory host computers and
PLC’s.
DIGITAL INPUT MODULES
The D7710 digital input modules contain fifteen individual
signal inputs for monitoring logic levels, contact closures, or
other ON/OFF signals in a data acquisition system. Each
discrete input terminal contains a pull-up biasing resistor
allowing for direct connection to a set of contacts. The input
terminals can accept signals between 30Vdc without
damage.
The key to the DGH product concept is that the modules
are easy to connect and use. You do not need
engineering experience in complicated data acquisition
hardware. With the DGH modules, anyone familiar with a
personal computer can construct a data acquisition
system. This modular approach to data acquisition is
very flexible, easy to use and cost effective. The modules
can be mixed and matched to fit your application. They
can be placed remote from the host and from each other.
DIGITAL OUTPUT MODULES
The D7720 digital output modules contain fifteen individual
open-collector transistor outputs for controlling annunciators,
lamps, or other devices that require an ON/OFF signal.
ANALOG INPUT MODULES
The D7100 through D7400 series analog input modules
contain seven input channels and makeup a complete
data acquisition system. Each unit contains analog signal
conditioning circuits optimized for a specific input type.
The amplified sensor signals are converted to digital data
with a microprocessor-controlled integrating A/D
converter. Offset and gain errors in the analog circuitry
are continuously monitored and corrected using
microprocessor techniques.
The analog input modules output the resultant digital
data as unsigned integer percentage of full-scale values
that are compatible with the Modbus RTU protocol. The
modules continuously convert data at the rate of up to 25
conversions per second and store the latest result in a
buffer. Host processors may request data by sending a
Modbus query to the module. The D7000 series modules
will instantly respond by communicating the memory
buffer data back to the host processor.
ANALOG OUTPUT MODULES
The D7500 analog output modules contain two 12-bit
digital to analog converters (DAC) for generating either
voltage or current output signals. The output signal type
for each DAC is user selectable and each DAC is
independently controlled via a host computer using the
Modbus RTU protocol. Two voltage and two current
ranges are available.
The D7500 analog output modules also contain
programmable features such as output slew rate, a
communications watchdog timer, programmable startup
signal value, and an 8-bit analog to digital converter for
analog read back the output signal.
The communications watchdog timer can be used to
move the analog output signal to a known “safe”
condition in the event of a communications failure.
Copyright Dutile, Glines and Higgins Corporation, 2017. All Rights Reserved.
The digital output modules also contain programmable
features such as a communications watchdog timer and
programmable startup signal values for each bit.
The communications watchdog timer can be used to move
the digital output signals to a known “safe” condition in the
event of a communications failure.
DIGITAL INPUT/OUTPUT MODULES
The D7730 combination digital input/output module contains
eight digital inputs and seven open-collector digital outputs.
The digital outputs can be used to control annunciators,
lamps, or other devices that require an ON/OFF signal. The
digital inputs can be used for sensing contact closures
The module also contains a programmable communications
watchdog timer and user-programmable startup signal
values for each digital output.
The communications watchdog timer can be used to move
the digital output signals to a known “safe” condition in the
event of a communications failure.
COMMUNICATIONS
The D7000 series modules are designed to easily interface
with Ethernet networks. The network interface supports both
10Mbs and 100Mbs connections. All communications to and
from the module are performed using the Modbus TCP/IP
protocol via an RJ-45 Ethernet interface.
PROCESS CONTROL SOFTWARE
Modbus TCP/IP protocol is one of the most widely supported
serial protocols in the data acquisition market. Modbus
TCP/IP software drivers are available for almost every data
acquisition software program available today. Thus providing
instant connectivity between the D7000 modules and most
data acquisition software programs.
SETUP
The D7000 series are initiated at the factory using the
Modbus TCP/IP protocol. Features such as the Modbus
device address, baud rate, and analog signal ranges can be
easily configured using the DGH setup software. Each
D7000 module must be properly configured before
installation into a Modbus system.
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UTILITY SOFTWARE
Complimentary Utility Software is included with each
purchase order. The software is compatible with
Windows operating systems and distributed on CDROM.
STANDALONE FEATURES
The D7000 series modules offer several standalone features
for communicating data values to different locations and
online cloud services.
The Utility Software simplifies configuration of all user
selectable options such as device address, baud rate
and filtering constants. The latest version of our software
is always available on our web site at www.dghcorp.com.
PEER-TO-PEER (P2P) MODE
The D7000 series modules support analog input to analog
output or digital input to digital output over an IP network
without the need to send data to a host computer. P2P
transmissions are actively triggered by time interval. Using
existing Ethernet lines signals can be transmitted to a
remote site without the need for controllers or software
programming. One module can pair with another module or
multiple modules to one module or one module to multiple
modules.
MODBUS COMMAND SET
The D7000 series modules use the Modbus TCP/IP
protocol for communications. The Modbus TCP/IP binary
protocol uses a master-slave technique, in which only the
master device can initiate transactions. The slave
devices respond by supplying the requested data to the
master or by performing the requested action in the
query. The master can address any slave device. The
returned messages are considered response messages.
The supported master function codes are:
Modbus TCP/IP Functions and Descriptions
01 – Read Coil Status
02 – Read Register Status
03 – Read Holding Registers
04 – Read Input Register (Analog Inputs)
05 – Force Single Coil
06 – Preset Single Register
0F – Force Multiple Coils
10 – Preset Multiple Registers
Copyright Dutile, Glines and Higgins Corporation, 2017. All Rights Reserved.
CLOUD COMPUTING
The D7000 series cloud computing feature uploads
information to the cloud using ThingSpeak which is an opensource IOT platform and application programming interface
(API) to store and retrieve data using the HTTP protocol.
EMAIL NOTIFICATION
The D7000 series analog input modules provide email
notification of limits via the free email service GMAIL. Limits
may be set by the user on each of seven input channels.
The user can specify greater, less than, or equal to the
desired limit value.
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ORDERING GUIDE
MECHANICAL DIMENSIONS
Voltage Inputs
D7100 7Ch Voltage, Thermocouple/Ethernet Interface
Current Inputs
D7200 7Ch +/-20mA Input/ Ethernet Interface
Thermocouple Inputs
D7300 7Ch Thermocouple/ Ethernet Interface
Voltage, Thermocouple, Current Inputs
D7400 7Ch Voltage, Thermocouple, Current/Ethernet
Interface
Voltage and Current Analog Outputs
D7500 2Ch Voltage, Current Analog Output/Ethernet
Interface
Digital Inputs/Outputs
D7710 15-Bit Digital Input/Ethernet Interface
D7720 15-Bit Digital Output/Ethernet Interface
D7730 7-Digital Inputs, 8-Digital Outputs/Ethernet
Interface
CONTACT INFORMATION
The D7000 series modules can be easily adapted to a DIN
rail using the DGH MK-1 mounting kit shown in view above.
STANDARDS AND MARKINGS
DGH Corporation
P.O. Box 5638
Manchester, NH 03108
Ph: (603) 622-0452
Fax: (603) 622-0487
Eml: information@dghcorp.com
Web: http://www.dghcorp.com/
Copyright Dutile, Glines and Higgins Corporation, 2017. All Rights Reserved.
www.dghcorp.com
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