13.2.3. Converting an image to .plk format .........................165
TABLE OF CONTENTS
80703B_MHW_2850T/3850T_02-2019_ENG3
80703B_MHW_2850T/3850T_02-2019_ENG4
PREFACE
PREFACE
Device data
Write the order code and other plate data found on the label applied to the controller exterior here (see illustration). Should
you need technical assistance, they must be communicated to Gefran Customer Service.
Serial numberSN
Finished product
code
Order codeTYPE
Power voltageSUPPLY
Firmware version VERS.
Warnings and safety
The devices illustrated in the manual must be installed by
qualified technicians, following the laws and regulations in
effect and according to the instructions contained in this
manual.
Installation and/or maintenance technicians must read
this manual and strictly follow the instructions herein and
found in the annexes since Gefran cannot be held liable
for personal, property and/or product damages should the
following conditions not be met.
CODE
This manual must be available to people who interact with
the devices described herein.
Before interacting with 2850T and 3850T multi-purpose
controllers, the operator must be adequately instructed on
the device operating, emergency, diagnostics and maintenance procedures.
If 2850T and 3850T multi-purpose controllers are used in
applications with risk of personal, machine or material damages, they must be combined with auxiliary alarm devices.
We recommend ensuring the ability to check alarm operations even during normal operations.
Do not touch live device terminals.
Before contacting Gefran Customer Service, in the event of
alleged instrument malfunctions, we recommend consulting
the Troubleshooting Guide in the "Maintenance"
80703B_MHW_2850T/3850T_02-2019_ENG5
PREFACE
Typical concepts used in the manual
Pay attention when the following symbols are found in the manual.
They indicate particularly important information
that effect correct product operations or safety, or
provide mandatory instructions.
They indicate a risk condition for the installation
technician or user due to hazardous voltages.
They call the reader's attention to a specific point.
Glossary
They signal a suggestion that could be helpful for
better device use.
4...20 mAElectrical current used as a signal that is
transmitted by certain sensors or that is
specifically used to control a device such
as, for example, a motor-driven valve.
AlarmOutput that is triggered when a certain
condition is met such as, for example, a
certain temperature.
Auto TuneFunction that lets you easily calculate and
set P, I and D parameters thanks to controller self-learning.
Batch Production batch ID.
Batch Report A series of analog and digital variables are
generally associated with the batch. The
report starts with the program RUN command and ends when the program END
status is reached.
BlocksDefault controls for specifications
Functionfunction used in Sequential Logics.
Cool Control used for cooling.
Data log
encryption Technology that guaranteed logged data
integrity (DataLog and Batch).
The saved file is read and write protected
by a CRC control. Encrypted files can be
decrypted by the DataLog Utility for PC.
DataloggerContinuous recording function for a series
of analog and digital variables.
GETLogicGefran Embedded Technology: function
that lets you set Sequential Logics directly
from the terminal.
GETViewGefran Embedded Technology: function
that lets you set custom graphics pages
directly from the terminal.
HBBAlarm Hold Back Band: alarm associated
with the SP profile, that checks that the
reference variable (PV) remains within a
tolerance band set according to the generated SP. If PV goes outside the set band,
the profile generator will be shut down and
HBB WAIT will appear on the monitor. The
profile generator automatically returns to
RUN when PV returns within the tolerance
band. If you want to move forward with
profile steps in HBB condition, SKIP is
permitted, provided you first go to HOLD
STATUS.
HBHeater Break Alarm: requires use of cur-
rent transformer inputs, associated with a
control output, of which it takes into consideration the ON and OFF phases. The
alarm signals changes in load absorption,
discriminating between current values for
current inputs.
Heat/CoolControl that is used both for heating and
cooling (requires two control outputs).
Heat Control used for heating.
Hysteresis When the value of the controlled variable,
at a precise moment, depends not only
from another reference variable, but also
by the values which the controlled variable
had previously, we are in the presence of
hysteresis. The hysteresis can therefore be
seen as an inertia which affects the control
system, causing variable delays between
variation of the reference variable and
variation of the controlled variable.
Sequential Logic
ON-OFF Control procedure based on output on and
Overshoot Situation where PV exceeds SP because
PID Acronym for Proportional-Integration-Dif-
Sequence of function blocks that describe
the sequential management of the machine cycle.
off. In heating control, the output remains
active until PV is a certain amount less
than SV (offset), and then turns off until
PV is higher than SV by the same amount
(or different, depending on the controller
configuration). In the case of cooling, the
output it is on until PV > SV - offset and off
until PV < SV + offset. This type of control
is not intelligent, does not take account of
the disturbances and is not very accurate,
but ensures a limited number of output
switching.
the control action was too late. The ONOFF controls have a greater overshoot
than the PID controls.
ferentiation indicates a negative feedback
80703B_MHW_2850T/3850T_02-2019_ENG6
PREFACE
system, meaning a device whose input
acquires a value from a process, compares
it with a reference value and uses the
difference (error) for determine the value
of the controller output variable, which is
the variable that controls the process itself.
The output is controlled according to the
actual error value (proportional action), a
set of previous error values (integral action)
and the error value rate of change (derivative action).
Setpoint Profile
Program
Pt100 Commonly used temperature probe.
PV Acronym for Process Value, which is the
Solid State
Relay Also known as SSR (Solid-state relay) is
a relay designed specially for frequent
switching. There are no moving parts
or mechanical contacts, but may, however,
fail or short circuit. These types of relays
are often used in temperature control
systems such as PID.
SegmentBasic element for the configuration of a
See SP.
Function set (Sp Profile, Sequential Logic,
Recording) that describe a production cycle.
At 0° C /F, its resistance is 100 ohms, while
at room temperature is about 106 ohms.
You can test the Pt100 for electrical continuity and you can use normal extension
cords.
value that the process variable (temperature, valve opening, etc.) has at that
moment.
SP profile. It describes the operations of
an individual segment in detail. The set of
segments describes the execution of a SP
profile.
SensorA device that translates physical phenom-
ena (i.e. resistance variation as a function
of temperature) in electrical signals that
can be acquired and processed by the
controller.
Setpoint Set value (see SV).
SSP SP/FSSPActive set point, in the case of a
set point gradient, shows its real value.
SPAcronym for Setpoint Profile meaning the
set of segments that describe the trend
over time of a value, typically a setpoint
and the status of a series of digital events
(In/Out).
SVAcronym for Set Value which is the value
that the process variable (temperature,
valve opening, etc.) must achieve and
maintain.
TA Current transformer
Thermocouple Sensor that transmits an electrical signal
of a few millivolts, that cannot be tested
for electrical continuity.
It needs specially designed extension
cords.
UndershootSituation where PV does not reach SV
because the control action was too early.
The ON-OFF controls have an undershoot
greater than the PID controls.
Engineering unit
Control output Output that controls the process and is
Unit of measure suited to directly express
the measured physical variable value.
turned on and off as needed.
Disclaimer
Although all information contained within this document has
been carefully checked, Gefran S.p.A. cannot be held liable
for the possible presence of errors, or damage to persons
or property due to improper use of this manual.
Gefran S.p.A. also reserves the right to make changes
to the content and form of this document as well as the
characteristics of the illustrated devices at any time without
prior notice.
The technical and performance data indicated in this
manual are to be considered as a guide for the user to
determine the suitability for a certain use, and are not
guarantees. They may be the result of Gefran S.p.A. test
conditions and the user must compare them to his/her real
application requirements.
Gefran S.p.A. cannot be held in any way liable for any damage to persons or property resulting from controller tampering, incorrect and improper use or otherwise non compliant
with controller features and instructions in this manual.
Copyright
This document and its annexes may be freely reproduced,
provided that the contents are not modified in any way
and each copy includes this warning and the statement of
Gefran S.p.A. ownership.
80703B_MHW_2850T/3850T_02-2019_ENG7
Gefran and GF_eXpress are trademarks of Gefran S.p.A.
The document may mention or reproduce trademarks and
logos of third parties. Gefran S.p.A. acknowledges the ownership of these trademarks or logos by their respective owners.
80703B_MHW_2850T/3850T_02-2019_ENG8
1.1. Profile
1. GENERAL DESCRIPTION
1. GENERAL DESCRIPTION
2850T3850T
The 2850T and 3850T multi-purpose controllers designed
to control the temperature in production processes (heat
treatment, kiln and autoclave management, etc.) used in
different industrial sectors such as automotive, food, metalworks, etc.
The controllers consist of three elements: the operator interface with touch screen display and keys, the I/O module
group for connection to plants and machinery and the connection cable between the interface and the module group.
The two controllers share the same main features and the
same functions. The differences are listed in paragraph
“1.2. Model differences” on page 10.
The color touch screen display (3.5" for the 2850T model
and 7" for the 3850T model) allows the operator to easily
and quickly interact with the controller, managing actions
and parameters.
Access to the main controller functions and navigation
between pages is made easier thanks to its function keys
(6 for model 2850T and 10 for model 3850T), some of which
are customisable.
Customized pages may be configured directly on the display, even without a PC or external software. This option allows you create optimised graphic interfaces to control the
machinery used. A graphic symbol library is provided for
this purpose (buttons, bargraph, data display, etc.) that can
be set and linked to the controller variables. You may also
import images, such as representations of the machinery or
of the system’s operating diagram, to be used as a background, to make control even more intuitive for operators.
Controllers can control different PID (up to 8 for model
2850T and up to 16 for model 3850T) fully configurable.
Each PID can be used as a control for a single loop, a valve
or a ratio control, it can be connected to the profile pro-
grammer or be used as a cascade controller.
Tuning is performed through advanced algorithms that
ensure stable and accurate temperature control, avoiding
exceeding set limits or having unstable process control
even in critical heat or fast motion processes.
The setpoint profile programmer allows you to set the
programs to manage heat treatment cycles. The profile is
the set of segments that describe the setpoint curve. You
can create up to 200 (model 2850T) or 250 (model 3850T)
programs, stored internally, each of which can contain up to
50 segments.
Each program lets you set up to four setpoint profiles. A descriptive message, 16 input events (IN), 16 outbound events
(OUT), the setpoint value and the HBB alarm threshold can
be set for each program.
You can launch up to four programs simultaneously with
the 2850T model and 8 programs simultaneously with the
3850T model, each of which can handle up to 4 synchronous profiles.
The profile programmer can be set in synchronous mode
(all profiles are run with a common time base) or asynchronous (each profile can be run with an independent time
base). The asynchronous mode is obtained by running
different programs simultaneously.
The available logical operators (AND, OR, Timer, Counter
etc.) allow you to create custom logic operating sequences integrated with , thus obtaining complete and flexible
machine control.
The available settable mathematical functions (addition,
multiplication, division, minimum or maximum value, algorithms, etc.) can be used associated with process values as
analog channels and virtual channels, to manage advanced
controls, such as ratio controls or custom mathematical
formulas.
80703B_MHW_2850T/3850T_02-2019_ENG
9
1. GENERAL DESCRIPTION
The Data Logger function, combined with the Real Time
Clock (RTC clock with rechargeable buffer battery) stores
process data, IN/OUT signals and the status of the alarms
in an open file (.CSV format) or encrypted file. The minimum data sampling frequency is 1 second. Saved files can
then be exported from the controller via USB or Ethernet
network.
The batch report option lets you to associate this data
with a specific batch produced, to be able to use them in
production and quality reports.
A specific application for PC (Report Utility) is available for
easy management of all data logger data and the production batch reports which allows you to manually copy and
delete files via an Ethernet network between the controller
and a PC or automatically at dates that can be set manually
by the operator. The data stored on the PC can then be
displayed in graphical format or a spreadsheet (Excel type)
or exported as CSV or PDF files.
For the quick and safe installation of the machinery or plant,
use the recipes stored in the controller. The recipes, easily
retrievable by the operator, can be of two types: OEM manufacturer recipes, which contain the machine setup
parameters and production recipes, which contain single
production settings (profile program, logical steps, math
functions).
The recipes can be easily transferred between different
controllers via USB key or Ethernet network.
Controllers offer complete diagnostics (probe break down
or incorrect connection, total or partial load break down,
control loop faults), which helps the operator in case of
controlled machine or process faults.
All controller alarms are stored internally and can be
viewed as Active alarms and Historical alarms. The relevant
message is displayed for each historical alarm with the
date and time of the various states (active alarm, ACK, and
alarm cleared). The ACK parameter, settable for each alarm,
ensures that the active alarm was acknowledged by the
operator.
An internal energy counter, with configurable offset alarm,
provides energy consumption and cost totals.
For accurate time stamps, the controller supports the
Simple Network Time Protocol (SNTP) service, which continuously updates the controller's date and time from the
SNTP server connected via Ethernet network.
The weekly clock function lets you automatically start or
stop a programmer or a process, without the need of operator intervention.
The clock is based on a settable weekly calendar (day of
week and time).
The display language selection lets the operator interact
with the device in the preferred language, facilitating work.
Secure access to all controller parameters is guaranteed by
3 preconfigured password levels (Operator, Maintenance
technician and OEM manufacturer). In this way, each user
can only access the assigned functions and parameters.
You can connect the controller to the factory HMI/SCADA
network by using standard Modbus TCP (Ethernet) con-nectivity.
Complete controller configuration is facilitated by use of the
PC programming tool GF_express, which proposes intuitive
Wizard pages, permitting easy construction of customized
graphic pages and advanced logic.
1.2. Model differences
2850T3850T
Touch Screen display dimensions3,5”7”
Number of keys610
Number of customisable keys03
Max number of LOOP816
Max number of programs200250
Logical and mathematical operations200200
Data Logger analog values2550
Data Logger digital events5050
Interface dimensions100 × 100 mm198 × 134.4 mm
10
80703B_MHW_2850T/3850T_02-2019_ENG
1.3. Hardware architecture
Ethernet
1. GENERAL DESCRIPTION
STNPSNTP
USB
CAN
4
1
2
3
4
5
1
PWRERR
6
6
9
C
D
B
A
9
8
7
6
5
4
C
D
B
A
9
8
7
6
5
4
F-GCANs
7
8
9
5
10
11
12
E
13
F
0
14
11
2
3
15
E
16
F
0
11
17
2
3
18
GATEWAY CAN bus
19
20
RUN
21
3
F-MIX
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
F-MIXF-MIXF-EU16F-EU16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
80703B_MHW_2850T/3850T_02-2019_ENG
11
1. GENERAL DESCRIPTION
1.4. 2850T controller
Main features
• Operator interface with color touch screen display, 3.5 "
• Up to 8 PID control loops
• Cascade, ratio and valve PID controls
• Profile programmer with ramps and retention; synchronous and asynchronous
• Up to 200 50-segment programmes
• 3 password protected user levels
• Energy meter (kWh)
• Configurable logic operations
• Configurable math functions
• Data Log with Real Time Clock
• Batch Report management
• Transcript of unencrypted files (CSV) or encrypted for
DataLog and production batches
• Setting up custom pages
• Management of active and historic alarms
• Current and cleared alarm management
• USB for data export and parameter cloning
• Control parameter advanced tuning
• Configurable analogue and digital I/O signals
• HMI/SCADA/PLC data exchange via Ethernet Modbus
TCP
• Message language selection
1.4.1. Display and keys
1
2
310
456789
Figure 1 - 2850T display and key description
11
1. Shortcut icon (the landing page depends on the option
chosen):
• Controller with PROGRAMMER option: go to the
Program Monitor page that displays main program
information and lets you manage its execution.
• Controller with RECORDER option: go to the
Trend page that displays the set variable trends in
graphic format.
2. Lighted pressed key conformation.
3. Date and time indication.
4. Home page key: return to the main menu.
5. Left Page key: changes the page in the submenus with
multiple pages.
6. Right Page key: changes page in the submenus with
multiple pages.
7. Group Page key: go to the higher menu level.
8. Back key: return to the previous page.
9. Custom Page 1 button: go to first custom page
10. Authenticated user indication. The login page opens by
touching the indication.
11. Alarm Icon: blinks to indicate an alarm; tapping the
icon opens the page that lists current alarms.
12
80703B_MHW_2850T/3850T_02-2019_ENG
1.4.2. Dimensions and drilling templates
52.96.6
1. GENERAL DESCRIPTION
Dimensions in mm
4.5
88
91.6
100
2850T
100
4.2
Figure 2 - 2850T interface dimensions and drilling templates
93
Hole
93
80703B_MHW_2850T/3850T_02-2019_ENG
13
1. GENERAL DESCRIPTION
1.5. 3850T controller
Main features
• Operator interface with color touch screen display, 7"
• Up to 16 PID control loops
• Cascade, ratio and valve PID controls
• Profile programmer with ramps and retention; synchronous and asynchronous
• Up to 250 50-segment programmes
• 3 password protected user levels
• Energy meter (kWh)
• Configurable logic operations
• Configurable math functions
• Data Log with Real Time Clock
• Batch Report management
• Transcript of unencrypted files (CSV) or encrypted for
DataLog and production batches
• Setting up custom pages
• Active and historical alarm management
• USB for data export and parameter cloning
• Control parameter advanced tuning
• Configurable analogue and digital I/O signals
• HMI/SCADA/PLC data exchange via Ethernet Modbus
TCP
• Message language selection
1.5.1. Display and keys
1
2
314
45678910111213
Figure 3 - 3850T display and key description
1. Shortcut icon (the landing page depends on the option
chosen):
• Controller with PROGRAMMER option: go to the
Program Monitor page that displays main program
information and lets you manage its execution.
• Controller with RECORDER option: go to the
Trend page that displays the set variable trends in
graphic format.
2. Lighted pressed key conformation.
3. Date and time indication.
4. Home page key: return to the main menu.
5. Left Page key: changes the page in the submenus with
multiple pages.
6. Right Page key: changes page in the submenus with
multiple pages.
7. Group Page key: go to the higher menu level.
15
8. Back key: return to the previous page.
9. Custom Page 1 button: go to first custom page.
10. Custom Page 2 button: go to second custom page.
11. Customizable Key Function 1: raise the digital variable
FUNCT_1.
12. Customizable Key Function 2: raise the digital variable
FUNCT_2.
13. Customizable Key Function 3: raise the digital variable
FUNCT_3.
14. Authenticated user indication. The login page opens by
touching the indication.
15. Alarm Icon: blinks to indicate an alarm; tapping the
icon opens the page that lists current alarms.
14
80703B_MHW_2850T/3850T_02-2019_ENG
1.5.2. Dimensions and drilling templates
59.26.6
1. GENERAL DESCRIPTION
Dimensions in mm
22.4
88
93.3
198
134.4
52.4
3850T
Figure 4 - 3850T interface dimensions and drilling templates
187.5
Hole
124
80703B_MHW_2850T/3850T_02-2019_ENG
15
1. GENERAL DESCRIPTION
1.6. I/O modules
1.6.1. Compositions
Main features
• Available in the F-MIX versions (analog and digital
inputs and outputs) and F-EU16 (digital inputs and
outputs)
• F-MIX version: 4 analog inputs, 2 analog outputs, 8
digital inputs, 8 digital outputs
• F-EU16 version: 8 digital inputs, 8 digital outputs
• Standard composition from 1 to 4 F-MIX modules
(according to the controller model) and 1 F-GCANs
communication module
• Possibility to expand the standard composition with 1
or 2 F-EU16 modules
• Containers for 2, 4, 6 or 8 modules, according to the
chosen composition
1) Container dimensions in modules
n/a = composition not available
16
80703B_MHW_2850T/3850T_02-2019_ENG
1.6.2. Dimensions
1. GENERAL DESCRIPTION
I/O 2 SLOT
I/O 4 SLOT
119,8
119,8
109,5109,5109,5
52
1
2
3
4
5
1
PWRERR RUN
6
6
7
8
9
9
5
10
11
12
C
D
B
E
13
A
F
9
0
8
14
1
1
7
2
6
3
5
4
15
C
D
B
E
A
16
F
9
0
8
131
17
7
2
6
5
4
18
GATEWAY CAN bus
19
1 2
4
20
3
F-GCANs
F-MIX
104
1
1
2
3
4
5
1
PWRERR
6
6
7
RUN
8
9
9
5
10
11
12
C
D
B
E
13
A
F
9
0
8
14
11
7
2
6
3
5
4
15
C
D
B
E
A
16
F
9
0
8
1
1
17
7
2
6
3
5
4
18
GATEWAY CAN bus
19
20
2
314
F-GCANs
F-MIX
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
F-EU16F-MIX
119,8
I/O 8 SLOT
Dimensions in mm
80703B_MHW_2850T/3850T_02-2019_ENG
1
1
2
2
3
3
4
4
5
1
PWRERR
6
RUN
9
5
C
D
B
E
A
F
9
0
8
1
1
7
2
6
3
5
4
C
D
B
E
A
F
9
0
8
1
1
7
2
6
3
5
4
GATEWAY CAN bus
21
4
3
F-GCANs
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
F-MIX
Figure 5 - I/O module container dimensions
208
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
F-MIXF-MIXF-EU16F-EU16F-MIX
20
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
17
80703B_MHW_2850T/3850T_02-2019_ENG18
Warning! The installation of the devices described in the manual must be carried out by qualified personnel, following the laws and regulations and in accordance with the instructions contained in this manual.
Before proceeding with the installation, check that the controller is intact and has not been damaged during transport. Also make sure that the package contains all the accessories listed in the supplied documentation, especially
the sealing gasket and fixing brackets.
Verify that the order code corresponds to the configuration required for the application in which the controller is
intended (the supply voltage, number and type of inputs and outputs). See chapter 10 - Order codes - to verify the
configuration corresponding to each order code.
Warning! If even one of the above-mentioned requirements (qualified technician, device intact, configuration not
matching that required) is not met, suspend installation and contact your Gefran dealer or Gefran Customer Service.
2.1. Controller assembly
2. INSTALLATION
2. INSTALLATION
2.1.1. General installation rules
The controller is designed for permanent indoor installations. It must be mounted in electrical cabinets, or in
machine or production process plant control panels, which
are able to protect the connectors on the back of the controllers.
Warning! The controller must NOT be installed in
dangerous environments (flammable or explosive).
It can be connected to elements that operate in
such environments only by means of suitable
types of interfaces in conformity with the applicable safety standards.
Warning! If the controller is used in applications
with risk of damage to persons or property, it is
essential to combine it with specific alarm devices. We recommend including the ability to check
alarm operation even during the normal operation
of the controller and the system or equipment
being monitored.
Sudden changes in temperature, freezing or condensation
or corrosive gases should not occur where the controller is
installed.
The controller can operate in environments with pollution
degree 2 (presence of non-conductive dust, only temporarily conductive due to potential condensation). Prevent the
device from being reached by metallic processing particles
or scraps as well as any condensation products.
The controller is sensitive to strong electromagnetic fields.
Avoid placing it near radio devices or other equipment that
can generate electromagnetic fields, such as high-power remote controllers, contactors, relays, thyristor power
groups (in particular, phase shift), motors, solenoids, transformers, high-frequency welders, etc.
2.1.2. Drilling Dimensions
For proper interface installation, respect the size of the single hole and the spacing between the adjacent holes shown
in the illustrations of the different models (“Figure 2 - 2850T
interface dimensions and drilling templates” on page 13
and “Figure 4 - 3850T interface dimensions and drilling
templates” on page 15).
Warning! The support on which the interface must
be mounted must have the following characteristics:
• be rigid and sturdy enough to support the
device and not bend during use;
• have a thickness between 1 and 4 mm, in
order to allow the device to be secured with
the supplied brackets.
2.1.3. Protection against dust and water
infiltration
The front of the interface provides IP65 protection. Therefore, the device can be installed in dusty environments or
subject to water sprays provided that:
• the compartment containing the interface is also dust
and water-tight;
• the support on which the interface is installed is perfectly smooth and without undulations in the front;
• the hole on the support scrupulously complies with the
indicated drilling dimensions;
• the interface well-secured to the support, to enable
the gasket inserted between the device and panel to
ensure water-tightness.
Warning! If not adequately protected, the interface protection degree is IP20 (rear housing and
connectors).
80703B_MHW_2850T/3850T_02-2019_ENG
19
2. INSTALLATION
2.1.4. Vibration
The interface can withstand vibrations from 10 to 150 Hz,
20 m/s2 (2 g), in all directions (X, Y and Z).
If the device is mounted on a support that exceeds these
limits, a vibration suspension and damping system should
be provided.
2.1.5. Minimum clearances for ventilation
The temperature of the compartment that contains the
interface should not exceed, in any case, the 55° C (131 °F).
Never block the air vents.
The illustrations “Figure 2 - 2850T interface dimensions
and drilling templates” on page 13 and “Figure 4 - 3850T
interface dimensions and drilling templates” on page 15
indicate the minimum distances to be observed to ensure
device ventilation.
Tip. The lower the temperature in which the device
operates, the higher the life expectancy of its electronic components.
2.1.6. Positioning
The interface must be positioned so that the display is not
directly illuminated by the sun or by particularly intense light
sources. If necessary, shield direct beams, for example,
with an anti-reflective screen.
The interface angle should be between 30° and 120°, as
indicated in the figure.
4. Tighten the screws to lock the device to the panel. The
tightening torque must be between 0.3 and 0.4 N m.
The following illustrations show how to secure the two
interface models.
Figure 7 - 2850T installation
Controllers not in scale
Figure 6 - Controller positioning
120 °
30 °
2.1.7. Panel Mount
1. Insert the tapered rubber gasket between the interface
and the panel. The gasket, supplied, it is essential to
ensure the degree of said frontal protection.
2. Insert the device into the hole previously drilled on the
panel.
3. Insert the supplied brackets on the back of the device.
For the 3850T model, first insert the square metal
brackets and secure with screws.
Figure 8 - 3850T installation
20
80703B_MHW_2850T/3850T_02-2019_ENG
2.2. Installing I/O modules and Gefran communication
2.2.1. General installation rules
2. INSTALLATION
The I/O module groups are designed for permanent indoor
installations. They must be installed in control panels that
are able to protect the connectors on the modules.
Warning! The modules must NOT be installed in
dangerous environments (flammable or explosive).
They can be connected to elements that operate
in such environments only by means of suitable
types of interfaces in conformity with the applicable safety standards.
Sudden changes in temperature, freezing or condensation
or corrosive gases should not occur where modules are
installed.
Modules can operate in environments with pollution degree
2 (presence of non-conductive dust, only temporarily
conductive due to potential condensation). Prevent modules from being reached by metallic processing particles or
scraps as well as any condensation products.
2.2.2. Vibration
The modules can withstand vibrations from 10 to 150 Hz,
20m/s2 (2 g), in all directions (X, Y and Z).
If the modules are mounted on a support that exceeds
these limits, a vibration suspension and damping system
should be provided.
Raceway
Shield bar
Min 10 cm (3.94")
Min 3 cm
1
2
Mat. 3 4 7 5 7 6 5 0 5 9
V01
R-D/A4
F027062
3
4
5
PWRERR
6
7
RUN
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18
GATEWAY CAN bus
19
20
21
4
3
R-GCANs
F-MIX
2
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F-MIX F-MIXF-EU16F-EU16
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10
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18
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1
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(1.18")
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Min 3 cm
(1.18")
Shield bar
Min 10 cm (3.94")
Raceway
Figure 9 - Horizontal positioning
2.2.5. Module installation
The modules must be mounted on metallic and grounded
DIN 35 mm (1,38”) rail inside switchboards.
To secure the modules:
1. insert the top of the module hook on the DIN rail;
2. rotate the module to the vertical position, pressing until
you hear the "clack" which indicates that the lower
slide hook is attached to the DIN rail.
2.2.3. Minimum clearances for ventilation
The temperature of the compartment that contains the
modules should not exceed, in any case, the 55° C (131 °F).
Never block the air vents.
Tip. The lower the temperature in which the modules operate, the higher the life expectancy of their
electronic components.
Warning! Forced module cooling (i.e. with a fan)
can cause measurement errors.
2.2.4. Positioning
The modules can only be mounted horizontally.
When positioning the modules, make sure that there is
sufficient air circulation around them. Figure 9 shows the
minimum distances from adjacent walls that must be respected for ventilation.
Warning! There is a spring contact at the back
of each module to ground it through the DIN rail.
There will be no electric continuity with the ground
if the rail is not conductive or is not connected.
1
2
80703B_MHW_2850T/3850T_02-2019_ENG
Figure 10 - DIN rail mounting
21
2. INSTALLATION
2.2.6. Removing Modules
To remove the modules:
1. pull down lower slide lock to release the module;
2. rotate the module outwards;
3. remove the top part of the module hook from the DIN
rail.
1
3
2
2.3. Connections
Warning! Please remember that failing to follow
the instructions below could lead to electrical safety and electromagnetic compatibility problems, as
well as void the warranty.
2.3.1. General rules for connections
1. The externally connected circuits must have double
insulation.
2. In the case of shielded cables, the shield must be
grounded at one point only, possibly close to the I/O
module group.
3. Input cables must be physically separated from output
ones and the power connections.
4. Do not connect the unused I/O contacts.
2.3.2. Electromagnetic Compatibility (EMC)
The most stringent generic standards were used for electromagnetic compliance, using the following experimental
configuration:
ConnectionCable sectionLength
Voltage1 mm
Serial port0,35 mm
Thermocouple0,8 mm
Potentiometer, linear,
"PT100" thermistor
Digital inputs/outputs1 mm
2
(17 AWG)
(18 AWG)
1 mm2
(17 AWG)
2
(17 AWG)
2
2
1 m
(39.37”)
3.5 m
(137.79”)
5 m (196.85”)
compensated
3 m
(9.84”)
3.5 m
(137.79”)
Figure 11 - Removal from DIN rail
2.3.3. Cables
Always make connections using cables suited to the voltage and current limits specified in the Technical Specifications.
For connections, use copper wires with insulation for
60/75° C (140/167 °F). For non power connections, do not
use twisted and shielded cables.
Warning! Anchor cables, at least in pairs, so that
the mechanical stresses do not discharge on the
terminal block connections.
2.3.4. Voltage
Warning! Before powering the interface and I/O
module group, make sure that the supply voltage
corresponds to that on the device plates.
The 24 VDC supply must come from a Class II source or
limited energy low voltage. The power supply must use
a separate line from that used for the electromechanical
power devices and low-voltage power cables must follow a
separate path from the plant or machine power cables.
Warning! Make sure that the grounding connection is efficient. A missing or ineffective ground
connection can cause unstable device operations
due to excessive environmental disturbances. In
particular, check that:
• the voltage between ground and earth is < 1 V;
• the ohmic resistance is < 6 Ω.
22
80703B_MHW_2850T/3850T_02-2019_ENG
Ensure that the 24 VDC power supply is fitted with a switch,
or that there is a bipolar switch on the line that connects it
to the mains voltage, in order to easily cut-off power to the
controller in case of need.
2.3.5. Input and output connections
The I/O module input and output lines should be separated
from the power line.
To avoid disturbances, the I/O module input and output
cables must be kept away from the power cables (high
voltage or large current).
Input, output and power cables must not be laid in parallel.
Shielded cable or separate cable ducts are recommended.
Warning! If the controller is connected to NON
isolated electrical devices (i.e. thermocouples), the
ground connection must be made with a specific
conductor to prevent it from being directly through
the machine structure.
The connectors are polarised and accept wires of between
0.2 and 1,5 mm2 (from 24 to 15 AWG).
Insert the wire in the connector hole corresponding to the
terminal that is to be connected. After inserting the conductors, push the connector into the module.
To disconnect a wire, place a screwdriver into the slot next
to the conductor, to release the retaining spring.
The following figure shows how to insert or remove a wire
to/from the connector.
2. INSTALLATION
Figure 12 - I/O Connectors
2.4. Interface connection diagram
123 4 56
7
2.5. Ethernet Connections
Personal computers, servers and multi-purpose controllers
can communicate through the Ethernet connection. This
means that you can:
• control one or more multi-purpose controllers through
one or more personal computers;
• store data produced or used by one or more multi-purpose controllers on one or more servers and have them
readily available;
• keep one or more multi-purpose controllers time
synced via an NTP (Network Time Protocol).
1. Power supply 24 VDC ±25% Also connect the connector to the ground wire.
2. CAN Port DB9 M.
3. Green LED indicates active Ethernet connection.
4. RJ45 Ethernet port 10/100 Mbit/s.
5. Yellow LED indicates data transfer in progress.
6. USB port type A.
NTP servers allow computer systems to be synchronised,
meaning all connected devices will have the same time, referring to a precise external clock and not only the internal
clock, less precise.
Synchronisation enables a value offset of less than one
millisecond for systems belonging to the same network and
in any case less than a few hundred milliseconds for remote
networks.
80703B_MHW_2850T/3850T_02-2019_ENG
23
2. INSTALLATION
2.5.1. Private networks and public networks
The connection networks may be private or public.
A private network is a closed network with no connections
to the outside world and is intrinsically more secure.
The public network (Internet), in contrast, allows you to access the devices connected to the network from anywhere
in the world but, because of this, it is less secure.
Finally, there is the option of connecting a private network
to a public network through a device called a firewall, which
keeps them isolated except for duly authorised traffic.
In this type of configuration, a private network is often identified with the acronym LAN (Local Area Network) and the
public with the acronym WAN (Wide Area Network). Other
ways to identify them are intranet and extranet.
Note that the private network can also be constituted by a
single device.
Figure 13 3 shows the different types of networks.
PRIVATE NETWORK
Ethernet
Technician
(PC Windows)
CANCAN
1
1
1
1
1
1
1
1
1
2
2
2
2
2
3
3
3
3
3
4
4
4
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4
5
5
5
5
5
1
PWRERR
6
6
6
6
6
7
7
7
7
RUN
8
8
8
8
9
9
9
9
9
5
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GATEWAY CAN bus
19
19
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21
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3
F-MIX
F-MIX F-MIXF-EU16F-EU16
R-GCANs
PWRERR
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2
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GATEWAY CAN bus
19
19
19
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19
20
20
20
20
20
F-MIX
F-MIX F-MIXF-EU16F-EU16
R-GCANs
ControllerController
PUBLIC NETWORK
INTERNET
Ethernet
Remote service
CAN
1
1
1
1
1
2
2
2
2
2
3
3
3
3
3
4
4
4
4
4
5
5
5
5
5
1
PWRERR
6
6
6
6
6
6
7
7
7
7
7
8
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9
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2
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3
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GATEWAY CAN bus
19
19
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20
20
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20
20
F-MIX
F-MIX F-MIXF-EU16F-EU16
R-GCANs
Remote technician
RUN
21
4
3
Controller
Figure 13 - Types of networks
2.5.2. Firewall
The firewall is a physical device or a software application
that isolates a device or a network section from the rest of
the connection network.
Several firewalls may need to be crossed to reach a device.
For example, there might be a firewall between the corporate LAN and the Internet and another firewall that isolates
the device from the corporate network.
To access a multi-purpose controller behind a firewall you
need to configure the access channels or firewall traffic
rules and implement connections via VPN (Virtual Private
Network) or directly through a modem.
Consult the corporate IT system administrator to properly
configure firewalls or know the parameters to implement a
VPN or connect via modem.
In order to connect to an external multi-purpose controller
and ensure the proper operations of all the services, the
following ports need to be open (communicate the list to
the IT administrator):
PortService
20, 21FTP
502Modbus TCP
5500, 5800, 5900VNC
2.5.3. Router
In cases of particularly complex or extended Ethernet networks or that are subject to intense broadcast type traffic,
the connection to the 2850T and 3850T controllers must
be isolated. This is achieved by structuring the network
into subnets (corporate/machine), or by limiting the TCP/IP
traffic actually necessary for hubs or services.
This rule, in general, should be also be observed when
connecting 2850T and 3850T controllers in small sized
networks or with remote access systems.
The recommended solution is to connect the 2850T and
3850T controllers via a router.
The router is a layer 3 device that allows you to route the
communication packets between different networks, meaning to determine specific port outputs package that arrived
based on the target IP address.
The use of router ensures that the Ethernet traffic to or from
the 2850T and 3850T controllers is filtered and remains
isolated from the rest of the corporate network or from the
external network.
2.5.4. VNC (Virtual Network Computing)
You can check the multi-purpose controller remotely using
a VNC connection with a personal computer. The RFB protocol used is public domain.
With the VNC connection, the multi-purpose controller
assumes the host function and the personal computer the
client, where the connected multi-purpose controller interface is exactly reproduced.
Every action (clicking with the mouse, settings, etc.) performed on the reproduction of the interface display that
appears on the personal computer is faithfully replicated on
the controller and vice versa. The pages on the display and
computer monitor are synchronised in real time.
2.5.5. VNC Server
The VNC server is part of multi-purpose controller operations. The VNC server is disabled by default. To enable it:
1. Log in as administrator. For more information on the
login procedure, refer to the section “4.1. Login password” on page 35.
2. Open the Home Page by pressing the
selectService.
3. Select Setup
4. Select Configuration on the page that opens. Note the
device IP address that is used to configure access
through clients. If the network addresses have not yet
been set, see paragraph “4.14.2.2. Network Configuration” on page 72.
5. Select Network.
6. Select NTP VCN Configuration.
button and
24
80703B_MHW_2850T/3850T_02-2019_ENG
2. INSTALLATION
8
0
7
F
5
D
3
B
1
9
4
C
6
E
2
A
8
0
7
F
5
D
3
B
1
9
4
C
6
E
2
A
PWRRUNERR
+
-
GATEWAY CAN bus
F-GCANs
1 2
4 3
+
-
7. On the page that opens, enable VNC by ticking the
appropriate box and enter the password that will be
used to login. The password can be up to 34 charac-
The viewer can handle multiple concurrent connections,
but an excessive number of connections can cause image
refresh to slow.
ters long.
2.5.6. VNC Viewer
There are several programs that turn a personal computer
into a VNC client.
In addition to personal computers there are VNC viewers for
other devices such as tablets and smartphones.
2.6. F-GCANs communication module connection diagram
CAN bus connection
Yellow LED: +24 VDC power supply on
Green LED: module operating status *
*) on = module on
flashing = module not on
**) on = generic error
flashing = communication error
Red LED: module alarm **
CAN bus connector
Unused
Unused
Power supply 24 VDC ±25% 2 A max
80703B_MHW_2850T/3850T_02-2019_ENG
25
2. INSTALLATION
2.7. F-MIX module connection diagrams
2.7.1. General layout
Yellow LED: +24 VDC external power supply on
Green LED: digital input DI1 status ON
Green LED: digital input DI2 status ON
Green LED: digital input DI3 status ON
Green LED: digital input DI4 status ON
Green LED: digital input DI5 status ON
Green LED: digital input DI6 status ON
Green LED: digital input DI7 status ON
Green LED: digital input DI8 status ON
Green LED: digital output DO1 status ON
Green LED: digital output DO2 status ON
Green LED: digital output DO3 status ON
Green LED: digital output DO4 status ON
Green LED: digital output DO5 status ON
Green LED: digital output DO6 status ON
Green LED: digital output DO7 status ON
Green LED: digital output DO8 status ON
Green LED: module operating status *
Red LED: module alarm
A
1
2
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
35
19
20
2
1
7
Digital inputs
36
Digital outputs - Analog inputs - Analog outputs
2
8
F-MIX
+VI24
DO1
DO3
DO5
DO7
GNDI
AO1
TA1
VP1
-AI1
+AI1
AI1mA
VS1
GNDI
VP3
-AI3
+AI3
AI3mA
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
DI = Digital input
DO = Digital output
AI = Analog input
AO = Analog output
+VI24 = 24 V voltage
GNDI = 0 V voltage
TA = input from a current transformer
VP = Potentiometer power
VS = Extensometer input
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
GNDI
DO2
DO4
DO6
DO8
GNDI
AO2
TA2
VP2
-AI2
+AI2
AI2mA
VS2
GNDI
VP4
-AI4
+AI4
AI4mA
B
DI2
DI1
DI3
DI5
DI7
*) Fast flashing = module on
slow flashing = module awaiting configuration (not operating)
1
3
5
7
2
DI4
4
DI6
6
DI8
8
26
80703B_MHW_2850T/3850T_02-2019_ENG
2. INSTALLATION
A
2.7.2. Voltage
Voltage
A
+24 VDC2
2.7.3. Digital inputs
Digital inputs DI1 ... DI8
+
24 VDC
±25%
-
2.7.4. Analog inputs
Potentiometer inputs
1
3
5
7
9
4
6
8
10
A
1
3
5
7
9
2
GND
4
6
8
10
A
17
AI1
19
21
23
25
27
29
AI3
31
33
35
Type J, K, R, S, T thermocouple inputs
A
AI1AI2
-
19
+
21
23
25
AI3AI4
27
29
-
31
+
33
35
18
20
22
24
26
28
30
32
34
36
20
22
24
26
28
30
32
34
36
DI1
DI3
DI5
DI7
GND
1
3
5
7
Inputs RTD PT100/PT1000 - 4-wire connection
A
11
13
AI1
15
17
19
21
23
25
AI3
27
29
31
33
35
B
DI2
2
DI4
4
DI6
6
DI8
8
Inputs RTD PT100/PT1000 - 3-wire connection
11
13
AI1
15
17
19
21
23
25
AI3
27
29
31
33
35
AI2
Inputs RTD PT100/PT1000 - 2-wire connection
12
14
16
18
20
22
24
26
28
30
32
34
36
12
14
16
18
20
22
24
26
28
30
32
34
36
AI2
AI4
AI2
AI4
A
AI4
11
13
AI1
15
17
19
21
23
25
AI3
-
+
27
29
31
33
35
-
+
12
14
16
18
20
22
24
26
28
30
32
34
36
AI2
AI4
80703B_MHW_2850T/3850T_02-2019_ENG
27
2. INSTALLATION
Single-ended voltage inputs
A
11
-
AI1
+
13
15
17
19
21
23
25
27
-
AI3
+
29
31
33
35
Differential voltage inputs
12
14
16
18
20
22
24
26
28
30
32
34
36
-
+
-
+
A
11
13
15
17
-
AI1AI2
+
19
21
23
25
27
29
-
AI3AI4
+
31
33
35
Current inputs
12
14
16
18
20
22
24
26
28
30
32
34
36
-
+
-
+
A
12
14
16
18
20
22
24
26
28
30
32
34
36
-
+
-
+
AI1
AI3
11
13
15
-
17
19
+
21
23
25
27
-
29
31
+
33
35
AI2
AI4
AI2
AI4
Amplified current transducer inputs - 4-wire connection
A
1
3
5
7
9
11
AI1
+ -
Power supply
AI3
+ -
Power supply
+
-
+
-
13
15
17
-
19
21
+
23
25
27
29
-
31
33
+
35
Amplified current transducer inputs - 2-wire connection
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
Power supply
-
+
-
+
Power supply
-
+
-
+
AI2
AI4
A
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
Power supply
+
Power supply
+
+
+
-
+
+
-
AI1
Power supply
AI3
Power supply
1
3
5
7
9
11
13
+
+
-
15
17
+
19
21
23
25
+
27
29
+
+
-
31
33
35
+ -
+ -
AI2
AI4
28
80703B_MHW_2850T/3850T_02-2019_ENG
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