Wirebus WUC-712 User manual
User Manual
Remote Universal Ethernet
MAN-EN-DE-WUC712-01.00_18
Remote Universal Ethernet
WUC-712
Introduction
Thank you for choosing our WUC-712. To ensure its proper and efficient usage, it is
important to read this user manual thoroughly to understand how to operate the WUC-712, before
operating it.
About this Manual
1 - This manual should be delivered to the end user of the WUC-712;
2 - The contents of this manual are subject to change without notice;
3 - All rights reserved. No part of this manual may be reproduced in any form without the
written consent from Wirebus;
4 - The specifications contained herein are limited to standard models and do not cover
customized versions;
5 - All precautions were taken on preparing this manual, in order to guarantee the quality of its
information.
CAUTION!
The instrument described in this technical user manual is a device suitable for application in a
specialized technical area. Wirebus supplied products are submitted to a strict quality control
process. However, electronic industrial control equipment may cause damage to machinery or
processes in the event of any failure or improper operations and may even endanger human lives.
The user is responsible for settling and selecting values of the parameters of the instrument. The
manufacturer warns of the risk of incidents with injuries to both people and goods, resulting from
the incorrect use of the equipment.
Contents
INTRODUCTION.................................................................................................... 3
CONTENTS ........................................................................................................... 4
APRESENTAÇÃO................................................................................................. 5
TYPICAL APPLICATIONS .................................................................................... 6
TECHNICAL SPECIFICATIONS............................................................................ 7
Input characteristics.............................................................................................................. 7
General characteristics.........................................................................................................8
LEDs.....................................................................................................................................8
DIMENSIONS ........................................................................................................ 9
MECHANICAL INSTALLATION............................................................................ 10
INSTALAÇÃO ELÉTRICA..................................................................................... 11
Power supply........................................................................................................................13
Digital inputs.........................................................................................................................13
Relay outputs and alarms.....................................................................................................13
Pt100 input ...........................................................................................................................15
Thermocouple input..............................................................................................................15
Current input.........................................................................................................................15
Voltage input......................................................................................................................... 16
Logic level input.................................................................................................................... 16
Frequency input....................................................................................................................16
Modbus RTU communications..............................................................................................17
OPERATION.......................................................................................................... 18
Starting the WUC-712 ..........................................................................................................18
HTTP server (webserver) .....................................................................................................19
Communication settings .......................................................................................................20
Ethernet switch.....................................................................................................................22
Reset....................................................................................................................................23
SNMP...................................................................................................................................24
Modbus table........................................................................................................................25
Modbus register details ........................................................................................................31
RECOMMENDATIONS.......................................................................................... 33
ETHERNET CABLE AND CONNECTORS SPECIFICATION................................ 33
WARRANTY.......................................................................................................... 34
COPYRIGHT NOTE............................................................................................... 35
REFERENCES....................................................................................................... 35
NOTES................................................................................................................... 36
WUC-712
REMOTE UNIVERSAL ETHERNET
User Manual WUC-712
MAN-EN-DE-WUC712-01.00_1
Page 5 of 39
All rights reserved to Wirebus © 2011 –2018
Apresentação
The Universal Remote Ethernet WUC-712 is
designed to promote versatility and robustness in
industrial plants.
With is processing core based in the ARM®
technology, the WUC-712 offers speed and
accessibility to field variables through the Modbus
TCP protocol over Ethernet and also through the
Modbus RTU protocol over the RS-485 physical
interface, thus enabling the acquisition of 16 inputs
from several kind of signals such as
thermocouples, RTD resistive sensors, current,
tension, frequency and logical levels.
The available inputs and product features are
described below:
Thermocouples type J, K, T, R, S, E, N, B (ITS-90) with cold junction compensation
RTD type Pt100 (two or three wires)
Current 0-20 mA and 4-20 mA
Voltage 0 –75 mV, 0 –5 V or 0 –10 V
Logic level maximum amplitude 12 Vdc
Frequency up to 10 kHz with 4 simultaneous channels with 0.3 V to 50 V sensibility
Two digital inputs isolated up to 30 Vdc for alarm acknowledgment
Two alarm levels per channel, configurable (high, low, or differential) with hysteresis and delay of 1 to
10 seconds
Two relay outputs for alarm status
Fully detachable (plug-in type) connection to the terminal block
Integrated Ethernet switch
The WUC-712 is configured by the universal Wirebus configuration tool WireConfig.
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REMOTE UNIVERSAL ETHERNET
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User Manual WUC-712
MAN-EN-DE-WUC712-01.00_18
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Typical Applications
The Universal Remote Ethernet WUC-712 is designed to several types of industrial
applications, enabling the concentration of distributed field data. The WUC-712 applications
demonstrate high optimization in remote field data acquisition, which were previously delegated to
controllers, increasing the process scalability and decreasing costs.
The 16 inputs of the WUC-712 acquire reliable data for SCADA systems.
Network topology with WUC-712
WUC-712
REMOTE UNIVERSAL ETHERNET
User Manual WUC-712
MAN-EN-DE-WUC712-01.00_1
Page 7 of 39
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Technical Specifications
Input characteristics
Type
Parameter
Min
Max
Comments
Unit
Input signal
Current
0
20
Burnout in 3.5
mA
Voltage
0
10
Vdc
Logic level
0
12
Thermocouple
600
1820
B
ºC
-180
1000
E
-210
1200
J
-260
1370
K
-260
1300
N
-50
1760
R
-50
1800
S
-260
400
T
Cold junction
comp.
-10
+60
Operating range
Pt100
-200
850
Two or three wires
Burnout in V, G or I
Frequency
0.0004
10
0.3 to 50 Vdc sensibility
kHz
Input impedance
Current
49
Voltage
5
M
Thermocouple
5
Pt100
5
Frequency
150 @10Vp 10KHz
K
A/D precision
Current
0-20
± 1
uA
4-20
± 1
Voltage
0-75
± 0.003
mV
0-5
± 0.25
0-10
± 0.5
Thermocouple
± 0.1
%
Pt100
Pt
± 0.1
Cold junction
comp.
± 0.5
ºC
Linearization
Thermocouple
0.1
ºC
Pt100
0.2
Frequency precision
0.02 @10000Hz
%
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REMOTE UNIVERSAL ETHERNET
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User Manual WUC-712
MAN-EN-DE-WUC712-01.00_18
All rights reserved to Wirebus © 2011 –2018
General characteristics
Type
Comments
CPU
ARM7TDMI, 32 bits
Alarms
Two relay outputs: RL1 and RL2 SPDT max. 3 A / 220 Vac
Communications
Ethernet 10/100 Mbps full duplex, two isolated RJ45 connectors, integrated
Ethernet switch, up to 10 simultaneous Modbus TCP connections
RS-485, isolated and with transient protection filter, Modbus RTU with even or odd
parity, 1200, 2400, 4800, 9600, 19200, 38400, 57600 and 115200 bps
Operating temperature
–10 ºC to 60 ºC
Thermal stability
±0.005% / °C span @ 25°C
Relative humidity
Up to 90%
IP protection
IP-50 (DIN EN 60529 VDE 0470)
Input voltage
AC Version: Full-range 90 ~ 265 Vac @ 60 Hz
DC Version: 18 ~ 30 Vdc
Current consumption
200 mA
Construction
Aluminum and side panels in PA 6.6-FR (flame resistant polyamide)
Placement
DIN35 rail (DIN EN 60715 TH35)
Electrical connection
Cable up to 2.5mm² with “plug-in” type removable connectors
Approx. Weight
0.5 kg
Dimensions
59 x 208 x 75 mm. (height x width x depth)
LEDs
LED
Behavior
RJ45 (green)
Ethernet link established
RJ45 (green)
Ethernet data transmission / reception
POWER (green)
Equipment energized
RUN (green)
Lit under normal operation, blinking when TCP/IP settings are being changed
RL1 (green)
Relay 1 activated
RL2 (green)
Relay 2 activated
TX (orange)
RS-485 data transmission
RX (green)
RS-485 data reception
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REMOTE UNIVERSAL ETHERNET
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User Manual WUC-712
MAN-EN-DE-WUC712-01.00_18
All rights reserved to Wirebus © 2011 –2018
Mechanical installation
The installation of the Universal Remote Ethernet WUC-712 requires the use of an
appropriate screwdriver so the mechanical parts are not damaged. A “terminal” type 1/8”
screwdriver is recommended. The following steps details the installation.
1. Place the bottom of the WUC-712 in the DIN
35mm rail.
1. Press the top part of the WUC-712 until hearing a
click. To remove the WUC-712, just apply the opposite
force, i.e., force the WUC-712 up and pull it out.
3. The WUC-712 is designed to be installed in
regular DIN 35 mm rails and after the installation the
equipment must remain securely fastened and must
not present any slack within the trail. If there is any
slack, the trail is possibly not standard.
Figure 4
Figure 5
Figure 6
WUC-712
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User Manual WUC-712
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Page 13 of 39
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Attention: all cables must be “crimped” with eyelet type terminals for cables up to 1.5 mm²
unless otherwise stated. The WUC-712 input type selection is done entirely through the
WireConfig software and there are no configuration jumpers. It is recommended to use woven
shielded cables and the woven grounding should be mostly done around the field instruments at
just one point.
Power supply
The WUC-712 AC must be powered through terminals
1 and 2 with voltage ranging from 90 to 260 Vac. The WUC-
712 DC must be powered through terminals 1 and 2 with
voltage from 18 to 30 Vdc. Terminals 3 and 36 are used to
ground the “mass” to the panel and it is recommended to use
1,5 mm² cables for the phases and 2,5 mm² for grounding.
The electric scheme is described in the picture.
Note: There is no polarity on power terminals 1 and 2 for the
WUC-712 DC, i.e., the positive can be connected to terminal 1 and negative to
terminal 2 or positive to terminal 2 and negative to terminal 1.
Digital inputs
The digital inputs are used for alarm status and recognition. Input I1
and I2 are photo-coupled, with sensibility from 10 to 30 Vdc, common for
both inputs, NPN driven. Digital input I1 is used to reset or recognize RL1
an RL2 alarm conditions and digital input I2 is used as a status flag for
general use. The electric scheme is described in the picture where
terminals 7 and 8 are the NPN inputs and terminal 9 is the positive source
common.
Digital inputs can be read through Modbus register 40020.
Relay outputs and alarms
The relay outputs are used to physically indicate alarmed
conditions preset for each input. The outputs can only be reseted
through the digital inputs or Modbus registers.
The electric scheme is described in the picture, where the common
contact is connected to terminals 5 and 38, the normally open contacts
are connected to terminals 6 and 39 and the normally closed contacts
are connected to terminals 4 and 37.
The relay outputs can be read and written through Modbus register
40022
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REMOTE UNIVERSAL ETHERNET
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User Manual WUC-712
MAN-EN-DE-WUC712-01.00_18
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The WUC-712 has two independent alarms for each channel.
Each alarm can operate under four conditions: inoperative, low value, high value and
differential.
Inoperative: no alarm condition.
Low value: the alarm is active when the input value is
lower than the setpoint.
High value: the alarm is active when the input value is
greater than the setpoint.
Differential: differential mode is defined by the setpoint and
hysteresis. The setpoint defines the center reference point and
the hysteresis increases the reference range. If the input signal
lies outside the reference range, the alarm becomes active. For
instance, to define a reference range from 400 to 600, define
the setpoint as 500 and the hysteresis as 100. When the input
signal is lower than 400 or greater than 600 the alarm triggers.
The hysteresis is relative to the delay between the activation or deactivation of a condition.
In the WUC-712 the operation mode can change based on the selected alarm condition.
With the low value alarm condition selected, the alarm activates when the input value is
lower that the setpoint and deactivates when the input value is greater than the setpoint plus the
hysteresis.
With the high value alarm condition selected, the alarm activates when the input value is
greater than the setpoint and deactivates when the input value is lower than the setpoint minus
the hysteresis.
The waiting time defines how many seconds the output waits to be activated.
Note:
For improved security when using output relays in burn-out conditions, when there is
disruption of the Pt100 cable (see Pt100 input), it is recommended to configure the relay output
wait time to more than five seconds. This condition is important to avoid operational failures, for
instance, turbine “trips” or any other system that relies on error free states, taking into
consideration that the burn-out is an error condition in the process.
WUC-712
REMOTE UNIVERSAL ETHERNET
User Manual WUC-712
MAN-EN-DE-WUC712-01.00_1
Page 15 of 39
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Pt100 input
The Pt100 inputs are linearized according to ITS-90. With a current
source circuit and cable compensation the WUC-712 eliminates the line
charging effect, and with resistive sensors measurement it stands as a
precise temperature measurement system. The sensor measurement
terminals are signal (G) and common (V and I) for channels CH1 up to
CH16 and the cable compensation measurement is done in the I
terminals referenced to G.
If the Pt100 cables are not connected or are open, a burn-out
signal will be represented by an indication of -200°C in the respective
channel.
The WUC-712 detects the missing sensor and disables the alarm conditions associated
with the open channel.
Note: User should pay attention to the correct connection of the sensor (signal
G and
common
V and I), otherwise indication of the temperature will fail. Incorrect connection may
interfere on the other channels.
Thermocouple input
The thermocouple inputs are linearized according to ITS-90. With
a cold junction compensation circuit, the WUC-712 takes into account
the Seebeck effect in cable connections, standing as a precise system
for high temperature or high differentials measurements. The sensor
measurement terminals are positive (V) and negative (G) for channels
CH1 up to CH16. Terminal (I) is not used in this configuration.
Note: The universal remote doesn’t have burnout detection for voltage
input, which means that, to avoid floating signal (when sensor is
disconnected), the user should configure that channel as “Sem
Entrada” (disabled) or to make a short-circuit between terminals V and G, to keep the input on 0
(zero).
Current input
The WUC-712 has two current input configurations: 0 –20 mA and
4 –20 mA. The scheme for both configurations is described in the
Picture, where the positive of the current loop is connected to the line
terminal (I) and the negative to the (G) terminal for channels CH1 up to
CH16. The positive terminal (V) is not used in this configuration.
Note: the burn-out is represented when the 4-20 mA signal is lower
than 3.5 mA.
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REMOTE UNIVERSAL ETHERNET
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User Manual WUC-712
MAN-EN-DE-WUC712-01.00_18
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Voltage input
The WUC-712 has three voltage input configurations: 0 –75 mV, 0
–5 V and 0 –10 V. The scheme for the configurations is described in the
Picture, where the positive is connected to the (V) terminal and the
negative to the (G) terminal for channels CH1 up to CH16. The line
terminal (I) is not used in this configuration.
Logic level input
The WUC-712 has logic level inputs with 0 to 12 Vdc sensibility.
The 0 to 3 Vdc range corresponds to logic level 0 while the 5 to 12 Vdc
range corresponds to logic level 1. The scheme is described in the
Picture, where the positive is connected to the (V) terminal and the
negative to the (G) terminal for channels CH1 up to CH16. The line
terminal (I) is not used in this configuration.
Frequency input
The WUC-712 has frequency inputs with 0.3 to 50 Vdc sensibility
and 0.3 Hz to 10 kHz reading. The scheme is described in the Picture,
where the positive is connected to the (V) terminal and the negative to
the (G) terminal for channels CH1 up to CH4. The line terminal (I) is not
used in this configuration.
WUC-712
REMOTE UNIVERSAL ETHERNET
User Manual WUC-712
MAN-EN-DE-WUC712-01.00_1
Page 17 of 39
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Modbus RTU communications
The picture describes the connection scheme for the RS-485 channel,
where the positive (+) is connected to terminal 69 and the negative (-) to
terminal 68. Terminal 67 must be connected to the cable shield.
WUC-712
REMOTE UNIVERSAL ETHERNET
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User Manual WUC-712
MAN-EN-DE-WUC712-01.00_18
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Operation
Starting the WUC-712
The Universal Remote Ethernet WUC-712 is designed to apply the advantages in the
distribution and collection of field variables with Modbus protocol compatibility. The WUC-712
parameterization comprises the following steps:
Communications:
IP, network mask and default gateway settings for the Ethernet interface.
Address, baud rate and parity settings for the RS-485 interface.
Configuration:
Sensor type selection.
Offset setting for each sensor.
Maximum and minimum engineering unit scales and decimal point.
Alarm condition: low, high or differential.
Alarm hysteresis setting.
Alarm setpoint setting.
Alarm activation wait time.
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