Mect MPNE1001 Series User manual

Inputs/outputs modules: MPNE Mect Srl
ME7087_13
04/21
User Manual
MPNE1001 series
Modbus RTU interface
MANUALE D’USO

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INDEX
1Introduction ...........................................................................................................4
1.1 Staff qualification .............................................................................................4
1.2 Symbols.............................................................................................................4
1.3 Nomenclature....................................................................................................4
1.4 Security.............................................................................................................5
2Hardware features..................................................................................................6
2.1 System description............................................................................................6
2.2 Features.............................................................................................................7
2.2.1 BASE inputs / outputs electric features .................................................7
2.2.2 EXPANSION digital inputs electric features –CODE 01......................8
2.2.3 EXPANSION digital outputs electric features –CODE 02....................8
2.2.4 EXPANSION analog inputs / outputs electric features –CODE 05.....8
2.2.5 EXPANSION digital outputs electric features –CODE 06
(PRELIMINARY).................................................................................................9
2.3 Electromagnetic compatibility..........................................................................9
3Product architecture...............................................................................................9
3.1 Models.............................................................................................................11
3.2 Installation ......................................................................................................12
3.2.1 Distances ...............................................................................................12
3.3 MPNE1001 Wiring.........................................................................................12
3.3.1 Isolation.................................................................................................12
3.3.2 System power supply ............................................................................13
3.3.3 Digital outputs power supply................................................................14
3.3.4 Fuses......................................................................................................14
3.3.5 Grounding..............................................................................................15
3.3.6 Cable screen ..........................................................................................15
3.4 I/O Connection................................................................................................15
3.4.1 Base connection.....................................................................................15
3.4.1.1 Base connection - encoder .................................................................16
3.4.2 Base + expansion digital inputs connection..........................................17

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3.4.3 Digital inputs connection ......................................................................17
3.4.4 Base + expansion digital outputs connection........................................18
3.4.5 Digital outputs connection ....................................................................18
3.4.6 Base + expansion analogue inputs / outputs connection............................19
3.4.7 Analog inputs / output connection ........................................................19
3.4.8 3A current input connection (PRELIMINARY)...................................20
4Modbus................................................................................................................21
4.1 Modbus parameters configurations.................................................................21
4.1.1 Address (ID module).............................................................................21
4.1.2 Baud Rate settings.................................................................................22
4.1.3 Parity and stop bit configuration...........................................................22
4.1.4 Factory configuration............................................................................24
4.2 ModBus connection........................................................................................24
4.2.1 Installation example TPAC1007 / TP1043...........................................25
4.2.2 Installation example TPAC1008 / TP1070...........................................25
4.2.3 Terminating resistence ..........................................................................26
4.3 Watchdog........................................................................................................26
5Memory map ModBus RTU registers.................................................................26
5.1 Special functions.............................................................................................33
5.1.1 Functions definition...............................................................................33
5.1.2 Variables................................................................................................35
5.1.3 Management of IOs...............................................................................38
5.2 Module 06 Functions (PRELIMINARY).......................................................41
5.2.1 Monostable outputs ...............................................................................41
5.2.2 Using lines as monostable.....................................................................42
5.2.3 Using lines as PWM..............................................................................43
6Status led .............................................................................................................44
6.1 Led On ............................................................................................................44
6.2 Led RUN.........................................................................................................44
6.3 Led LINK........................................................................................................44
6.4 Digital I/O Led................................................................................................44

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1 Introduction
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 advices 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 information
1.3 Nomenclature
Modbus RTU interface: MPNE1001
Operator Panel: TP1070
System: MPNE1001 + TP1070

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1.4 Security
Attention
Switch off devices before connecting them .
Attention
MPNE1001 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 not power switch and not 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.

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2 Hardware features
2.1 System description
The MPNE1001 is a RTU Modbus bus coupler device, the RS485 ModBus / RTU
slave interface allows the MPNE1001 to communicate with an operator panel or a
PLC. MPNE1001 is a modular device consisting of a base plus one or two expansions
to obtain different configurations of inputs and outputs. The available expansions are:
8 digital inputs
8 digital outputs
2 analog inputs and 1 analog output
8 digital outputs and 1 current input of SHUNT (PRELIMINARY)
The expansions are modular to each other in any combination.

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2.2 Features
Mechanics
Power supply
24Vdc +/-15% 3W
Base dimensions W x H x L
80 x 60 x120mm (4 DIN modules)
Base + expansions dimensions
W x H x L
80 x 80 x 120mm (4 DIN modules)
Installation
DIN 35
Climatic conditions
Operative temperature
0 °C ÷ 55 °C
Storage temperature
-20 °C ÷ +85 °C
Relative humidity
From 5 % to 95 % no condensation
Electric isolation
Air clearance
According to IEC 60664-1
Pollution according to IEC
61131-2
2
Digital inputs
0V - 24Vdc +/- 15%
Max current for each digital
output –CODE 02
200mAdc@24 Vdc
Max current for each digital
output –CODE 06
500mAdc@24 Vdc
Max number of analog inputs
4 (MPNE1001-05-05 model)
Type of selectable analog inputs
PT100, TCJ, TCK,TCT, TCB, TCR, TCS, V, mA
Dissipated power without loads
0.5 W
2.2.1 BASE inputs / outputs electric features
Configurable
digital I/O
8
Line type
Update
Note
PNP
Modbus cycle
time
Max 200mA for each
output. max 2A
totally.
Output 8 is a high
frequency output
(max 65kHz) and
configurable as PTO
Digital
inputs
8
PNP
Modbus cycle
time

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Encoder
input
1
PNP
max frequency
40kHz
2 of the 8 inputs (In9
and In10) are used as
inputs for encoder
2.2.2 EXPANSION digital inputs electric features –CODE 01
Digital
inputs
8
Line type
Resolution
Note
PNP
Modbus cycle
time
2.2.3 EXPANSION digital outputs electric features –CODE 02
Digital
outputs
8
Line type
Resolution
Note
PNP
Modbus cycle
time
Max 200mA for each
output. max 2A
totally.
2.2.4 EXPANSION analog inputs / outputs electric features –CODE 05
Analog
inputs
2
Input type
Resolution
Note
020 mA
(0)
0.005mA
Input impedance 9Ω
0V
(0)
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:
-40.0°C +200.0°C
0.1°C
Tenth of degree
resolution
Analog
outputs
1
0 (4)20 mA
(0)
12bit
Max impedance 400 Ω
0V
(0)
12bit
Min impedance 1kΩ

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2.2.5 EXPANSION digital outputs electric features –CODE 06
(PRELIMINARY)
Digital
outputs
8
Line type
Resolution
Note
PNP
Modbus cycle
time
Max 500mA for each
output. max 4A
totally.
Current
input of
SHUNT
1
High side
0 –3 A
Current read
2.3 Electromagnetic compatibility
The electromagnetic compatibility tests have been carried out at accredited
laboratories, according to EN 61326-1, EN 61131-2 and EN 61000-6-2 standards .
Attention
Install the devices in electrical switchboards where temperature
doesn’t exceed 55 °C.
3 Product architecture
MPNE1001 is a device consisting of a base with some digital inputs and outputs and
RTU modbus interface towards a master.

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To the basic board, which includes 8 digital PNP inputs plus 8 digital PNP lines
configurable as inputs or outputs, two expansion modules can be added at choice
between:
1) 8 digital PNP inputs module –CODICE 01
2) 8 digital PNP outputs module –CODICE 02
3) 2 universal analog inputs and 1 analog output module –CODICE 05
4) 8 digital PNP outputs and 1 current input 3A module –CODICE 06

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3.1 Models
Given the available modules, the models that can be realised are the following:
Base
Expansion 1 (optional)
Expansion 2 (optional)
Format
Power supply
MPNE10
BASE
Version
01
00
00
SG
24
8 fixed digital inputs
+
8 configurable digital I/O
01
02
05
06
01: 8 digital inputs
02: 8 digital outputs
05: 2 analog inputs +
1 analog output
06: 8 digital outputs +
1 current shunt input
(PRELIMINARY)
01
02
05
06
01: 8 digital inputs
02: 8 digital outputs
05: 2 analog inputs +
1 analog output
06: 8 digital outputs +
1 current shunt input
(PRELIMINARY)
SG
Open frame
24
24Vdc power supply

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3.2 Installation
3.2.1 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.
3.3 MPNE1001 Wiring
3.3.1 Isolation
On MPNE1001 there is not galvanic isolation between the main power supply and
the internal communication bus.
Fig.: logic chain

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3.3.2 System power supply
Il MPNE1001 requires a 24VDC (+/-15% ) power supply as shown in the figure. The
system is protected from the power supply polarity inversion.
Before turning on the device configure the Modbus setting, see chapter: Modbus
parameters configurations.
Attention
Wrong value for the power supply can cause a irreversible damage
to the device.

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3.3.3 Digital outputs power supply
The digital outputs of the MPNE1001 are powered separately (24Vpot)from the
circuit electronics so that they can be cut off from the emergency chain without
disconnecting the low power part. The digital outputs can provide up to 2A maximum
current at 24V (for CODE 02) and up to 4A maximum current at 24V (for CODE 06).
The maximum allowable current per single output is 200mA (for CODE 02) and
500mA (for CODE 06). The current supplied by the outputs is supplied by the
power supply of the terminal itself: it is the responsibility of the installer to correctly
size the power supply to guarantee the necessary current.
In the figure below the power supply of digital outputs , of the base and of the
expansions are shown:
Fig.: Digital output connection
3.3.4 Fuses
The system has no fuses internally; however, for the protection of the input of the
MPNE1001 power supply, it is recommended to insert a 1A fuse, while for the
power it is necessary to put a 4A.

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3.3.5 Grounding
The DIN rail on which are mounted the MPNE1001 and the terminals must be
carefully grounded in order to increase the rejection of electromagnetic
disturbances.
3.3.6 Cable screen
To make the system less sensible to disturbances , the connection cable between the
operator panel and the MPNE1001 should be screened and connected to both devices
GND.
3.4 I/O Connection
3.4.1 Base connection
The MPNE1001 can be used either alone or connected at the most to two
expansions.
On MPNE1001 are available:
8 PNP digital Inputs –Outputs configurable via software;
8 PNP digital Inputs.
The figure below shows the terminal blocks for the connections of the digital
inputs/outputs on the MPNE1001 base.
Fig.: Base connection

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3.4.1.1 Base connection - encoder
Bidirectional encoder
Mono directional encoder
Fig.:Mono directional encoder connection
Connect to the input “In10” count (Clock) while in the input “In9” the direction:
• In9 = 0 counter UP
• In9 = 1 (24V) counter down

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3.4.2 Base + expansion digital inputs connection
On each base there can be at most two expansions in combination between digital
inputs, digital and analog outputs. As far as the digital inputs are concerned, the
pinout is as follows:
Fig.: Connection of the base + digital inputs (Expansion boards)
3.4.3 Digital inputs connection
If configured as inputs, the digital lines are PNP type.
Fig.: Digital inputs

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3.4.4 Base + expansion digital outputs connection
On each base there can be at most two expansions in combination between digital
inputs, digital and analog outputs. If the expansions are of digital type , you obtain
the following pinout:
Fig.: Connection of the base + digital outputs (Expansion boards)
The lines on expansion board 1 are from 17 to 24, the lines on expansion board 2,
from 25 to 32.
3.4.5 Digital outputs connection
If configured as outputs, the digital lines are PNP type.
Fig.: Digital outputs
ATTENTION: each expansion should be supplied with 24VDC.

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3.4.6 Base + expansion analogue inputs / outputs connection
On each base there can be at most two expansions in combination between digital
inputs, digital and analog outputs. If the expansions are of analog type , you obtain
the following pinout:
Fig.: Connection of the base + analog inputs / output (Expansion boards)
3.4.7 Analog inputs / output connection
3 wire PT100 input. Wiring with too high
resistance can cause measure errors. To use 2 wire
PT100 short terminals 2 and 3.
T/C input. Thermocouples must be isolated type.
Use only proper thermocouples wire.