Mect MPNC006 Series Manual de usuario
ME7084_05
07/21
User Manual
MPNC006 series
Modbus RTU interface
MANUALE D’USO
RTU Modbus interface : MPNC006 Mect srl
ME7084_05 07/21
RTU Modbus interface : MPNC006 Mect srl
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INDEX
INDEX...........................................................................................................................1
1Introduction ...........................................................................................................3
1.1 Staff qualification .............................................................................................3
1.2 Symbols.............................................................................................................3
1.3 Nomenclature....................................................................................................3
1.4 Security.............................................................................................................4
2Hardware Installation............................................................................................4
2.1 System description............................................................................................4
2.2 Features.............................................................................................................5
2.3 Installation ........................................................................................................7
2.3.1 Distances .................................................................................................7
2.3.2 Insertion and removal of components.....................................................7
2.3.3 Assembly sequence .................................................................................7
2.3.4 Proprieties of DIN rail and TBUS..........................................................8
3MPNC006 Wiring .................................................................................................9
3.1 Power supply.....................................................................................................9
3.1.1 Isolation...................................................................................................9
3.1.2 System power supply ..............................................................................9
3.1.3 Digital outputs power supply................................................................10
3.1.4 Fuses......................................................................................................10
3.1.5 Grounding..............................................................................................10
3.1.6 Cable screen ..........................................................................................10
3.2 The daisy chain...............................................................................................11
3.3 I/O Connection................................................................................................11
3.3.1 Analog input connection .......................................................................12
3.3.2 Digital inputs Connection.....................................................................12
3.3.3 Digital outputs connection ....................................................................13
3.4 Max Configuration..........................................................................................13
3.5 Modbus parameters configuration..................................................................14
3.5.1 Address (ID module).............................................................................14
3.5.2 Baud Rate settings.................................................................................15
3.5.3 Parity and stop bit configuration..........................................................16
3.5.4 Reset Configuration...............................................................................18
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3.6 ModBus Connection.......................................................................................18
3.7 Installation example TPAC1007 / TP1043.....................................................19
3.8 Installation example TPAC1008 / TP1070.....................................................20
3.9 Terminating resistence....................................................................................20
3.10 Watchdog.....................................................................................................21
4RTU ModBus registers map...............................................................................21
5Status led .............................................................................................................26
5.1 On Led ............................................................................................................26
5.2 Run Led...........................................................................................................26
5.3 Overflow/configuration Led...........................................................................26
5.4 Digital I/O Led................................................................................................27
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1Introduction
To ensure a quick installation of the device please follow carefully the information
given in this manual.
1.1 Staff qualification
Products described here are to be used exclusively by personnel with experience in
programming PLCs, or technician specialized in the use of electrical device for
automation. MECT S.r.l. declines any responsibility for malfunctions or damages
caused by improper use of MECT devices, due to the non-compliance with
information in this manual. In MECT S.r.l there is an help desk service.
1.2 Symbols
Danger
Follow these advices to avoid people injury.
Warning
Follow these advices to protect the device.
Caution
Follow this advice to have a more effective performance.
ESD (Electrostatic discharge)
Danger: possibility of components damage due to electrostatic
discharge
Note
Steps to follow for a correct installation
Additional informations
1.3 Nomenclature
Modbus RTU interface: MPNC006
Terminals: MPNC020; MPNC030; MPNC035
Operator Panel: TP1070
System: MPNC006 with terminals
TBUS: Internal bus for communication between MPNC006
and terminals
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1.4 Security
Attention
Switch off devices before connecting them .
Attention
MPNC006 must be mounted inside cabinet or electrical
switchboards whose access must be performed by qualified
personnel.
ESD (Electrostatic discharge)
Modules have electronic components that can be damaged by
electrostatic discharge. Be sure to be connected to ground when
handle the devices.
The instrument has no power switch and no internal fuse, but it powers on
immediately after the correct supply voltage has been supplied (check the value of
the supply voltage indicated on the instrument label under “Supply”). Provide a
power supply line as direct as possible and separate from the line that supplies the
power elements.
For safety regulations, it is necessary to provide a two-phase switch-disconnector
with fuse located near the instrument and easily replaceable.
Avoid the presence of power elements (contactors, motors, drives, etc.), excessive
humidity, heat sources and corrosive gases in the same panel.
Instruments must be powered by safety transformers or by SELV-type power
supplies.
2Hardware Installation
2.1 System description
The MPNC006 is a RTU Modbus bus coupler device. The device interfaces on an
internal bus with terminals for different types of signals, both digital and analog.
The RS485 ModBus/RTU slave interface allows the MPNC006 to communicate with
an operator panel for displaying PLC variables.
Analog and digital terminals (MPNC020; MPNC030; MPNC035) can be connected
to the MPNC006; communication between the terminals and the MPNC006 via an
internal bus called TBUS.
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2.2 Features
Table 1
Mechanics
Materials
Polycarbonate, Polyamide 6.6
Power supply
24Vdc +/-15% 3W
Dimensions W x H x L
22.5 mm x 108 mm x 115 mm
Installation
DIN 35
Environmental conditions
Operative temperature
0 °C ... 55 °C
Storage temperature
-20 °C ... +85 °C
Relative humidity
From 5 % a 95 % no condensation
Electric isolation
Air clearance
According to IEC 60664-1
Pollution according to IEC 61131-2
2
Degree of protecion
IP 20
Digital inputs
Input range 0V - 24Vdc +/- 15%
Max current for every digital output
500mAdc@24 Vdc
Analogue input number
2
Analogue input type
mA, V, PT100, TC: J, K, T, B, R, S
Power
2.0 W
Analog
inputs
N° 2
Input type
Resolution
Note
020 mA
0.005mA
Input impedance 9Ω
0V
0.003V
Input impedance 1M
Thermocouple:
J (0°C –600°C)
T (0°C –400°C)
K (0°C –800°C)
B (100°C –1800°C)
R (0°C –1500°C)
S (0°C –1700°C)
1°C
Cold junction
compensation
PT100 E:
-40°C +800°C
1°C
Degree resolution
PT100 r:
-40°C +200°C
0.1°C
Tenth of degree resolution
Configurable
Digital I/O
N°8
PNP
PLC cycle
time
Max 200mA for each
output. 2 A max all output.
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Electromagnetic Compatibility
The electromagnetic compatibility tests have been carried out at accredited
laboratories, according to EN 61326-1, EN 61131-2 and EN 61000-6-2standards.
Attention
Install the devices in electrical switchboards where temperature
doesn’t exceed 55 °C.
Dimensions
Figure 1: Dimensions
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2.3 Installation
2.3.1 Distances
The system must be installed in a way that there is enough space for heat dissipation
and cabling. Avoid cables superimposition to prevent EMC problems.
Figure 2
2.3.2 Insertion and removal of components
Attention
Before performing these operations make sure that devices are
not supplied.
2.3.3 Assembly sequence
The insertion or removal of a single terminal is carried out by acting on the
fastening hook to the DIN rail located at the base of the terminal itself as shown in
the figure. The sequence starts with the insertion of the MPNC006, then the
necessary terminals are inserted in sequence. The fixing to the DIN rail is
guaranteed by the hooking spring of each terminal.
Adding terminals Removing terminals
Figure 3: Insertion or removal of a terminal
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The instruments must be assembled on the TBUS with the sequence shown in the
figure.
Figure 4: Assembly
2.3.4 Proprieties of DIN rail and TBUS
All the modules must be hooked directly onto DIN rail of type EN 50022 (DIN 35)
on which the TBUS connection modules have been inserted, which creates the
internal communication bus between the Modbus RTU interface (MPNC006) and
terminals.
Figure 5: TBUS
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