Seneca T201DCH50-M User manual

USER MANUAL
T201DCH50-M
T201DCH100-M
T201DCH300-M
AC/DC TRUE RMS or DC BIPOLAR CURRENT TRANSFORMER
WITH RS485 PORT AND MODBUS RTU PROTOCOL
Tel. [phone] Fax [phone]
ORIGINAL INSTRUCTIONS
SENECA S.r.l.
Via Austria 26 –35127 –Z.I. - PADOVA (PD) - ITALY

User Manual
T201DCH50/100/300-M
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Introduction
Contents of the present documentation refer to products and technologies described in it.
All technical data contained in the document may be modified without prior notice.
Content of this documentation is subject to periodical revision.
To use the product safely and effectively, read carefully the following instructions before use.
The product must be used only for the use for which it was designed and built: any other use must be
considered with full responsibility of the user.
The installation, programming and set-up is allowed only to authorized operators, physically and intellectually
suitable.
Set up shall be performed only after a correct installation and the user shall perform every operation described
in the installation manual carefully.
Seneca is not considered liable for failure, breakdown, accident caused because of ignorance or failure to
apply the indicated requirements.
Seneca is not considered liable for any unauthorized changes.
Seneca reserves the right to modify the device, for any commercial or construction requirements, without the
obligation to promptly update the reference manuals.
No liability for the contents of this documents can be accepted.
Use the concepts, examples and other content at your own risk.
There may be errors and inaccuracies in this document that may of course be damaging to your system.
Proceed with caution, and although this is highly unlikely, the author(s) do not take any responsibility for that.
Technical features subject to change without notice.
CONTACT US
Technical support
[email protected]
Product information
[email protected]
Document revisions
DATE
REVISION
NOTES
19/07/2017
1.0.0
First revision.
26/10/2017
1.0.1
Added info for Reset Imin/imax commands.
22/01/2018
1.0.2
Changed Accuracy info.
This document is property of SENECA srl. Duplication and reproduction are forbidden, if not authorized.
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TABLE OF CONTENTS
DEVICE DESCRIPTION AND INTENDED USE...........................................................4
1.1. Description ..............................................................................................................................................................................4
1.2. Features ...................................................................................................................................................................................4
1.3. Technical specifications.........................................................................................................................................................5
CONFIGURING THE DEVICE ......................................................................................6
DIP SWITCH CONFIGURATION..................................................................................7
3.1. Loading configuration from flash..........................................................................................................................................7
3.2. Setting the Modbus RTU Station Address............................................................................................................................7
3.3. Setting the RS485 Baud rate ..................................................................................................................................................8
3.4. Setting the RMS/Bipolar mode and 50% - 100% full scale ..................................................................................................8
MODBUS RTU PROTOCOL.......................................................................................10
4.1. Modbus RTU function code supported...............................................................................................................................10
MODBUS REGISTERS TABLE..................................................................................11
FULL CONFIGURATION WITH EASY SETUP..........................................................14
6.1. Easy Setup Menu ..................................................................................................................................................................14
6.2. Creating a Project Configuration.........................................................................................................................................15
6.3. Testing the Device ................................................................................................................................................................17
6.3.1. The datalogger ..............................................................................................................................................................17
ACCESSORIES..........................................................................................................19
7.1. Seneca S107USB...................................................................................................................................................................19
7.2. Seneca S117P1......................................................................................................................................................................20
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DEVICE DESCRIPTION AND INTENDED USE
WARNING!
This User Manual extend the information from the Installation Manual about the device configuration.
Use the Installation Manual for more info.
WARNING!
Under any circumstances, SENECA s.r.l. or its suppliers shall not be responsible for loss of recording
data/incomes or for consequential or incidental damage due to neglect or reckless mishandling of the
device, even though SENECA is well aware of these possible damages.
SENECA, its subsidiaries, affiliates, companies of the group, its suppliers and retailers shall not
guarantee that the functions will satisfy completely customer’s expectations or that device, the
firmware and the software shall have no errors or work continuously.
1.1. Description
The T201DCH50/100/300-M are isolated, contact less loop powered AC/DC current transducers. The look and
device’s function are very similar to those of an active standard Current Transformer, but with the remarkable
feature of measuring the DC and AC component. For its electrical endurance, ease of use and compact
dimensions, the T201DCH50-M, T201DCH100-M and T201DCH300-M fit every kind of current measurement:
up to 50 Adc/Aac, 100 Adc/Aac and 300 Adc/Aac (respectively).
A RS485 port with a standard Modus RTU protocol is also available.
The device can measure a current in 2 different modes (using dip switches or the Easy Setup Software):
TRUE RMS AC/DC CURRENT MEASURE
DC BIPOLAR CURRENT MEASURE (used also for obtain the sign +/- of a DC current)
1.2. Features
Similar usage to a standard alternating current active C.T.
No shunt, no wasted power from the measure circuit
High accuracy rating (>2% FS): 0.3% for 50A and 100A models / 0.5% for 300A model.
Suitable for use with all Seneca modules that allow to power the device with at least 12 Vdc and having a
0 –10Vdc input
Simple configurable with dip switches or with the free Easy Setup software
Two ranges, dip-switch selectable
Damping filter availability to improve stable reading
Modbus RTU protocol by RS485 port
Modbus Address/Baud Rate/Range/Mode configurable also from dip switch
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Suitable for batteries, battery chargers, solar panels, power units and generic dc and ac loads.
Compact size: overall dimensions less than 96,5 x 68 x 26 mm
Baud rate for Modbus RTU: from 1200 baud up to 115200 baud
Start/Stop Input/Output Values configurable with Easy Setup software
I Max/Min Resettable Modbus RTU registers available
Quick installation on DIN 46277 rail
Refer to the installation manual for more information.
1.3. Technical specifications
GENERAL SPECIFICATIONS
Power supply
11.5 –28Vdc (between Vcc and GND)
Absorption max
21mA (with no load)
BOX
Dimensions
96,5 x 68 x 26 mm
Hole Diameter
20.8 mm
Box, protection degree
Black, PA6, IP20
RS485 COMMUNICATION PORTS
Number
1
Port
Modbus RTU Slave
Baudrate
1200..115200 configurable
ENVIRONMENTAL CONDITIONS
Temperature
-20°C ÷ +70°C
Humidity
10 ÷ 90% no condensing
Storage temperature
-40°C ÷ +85°C
REFERENCE STANDARDS
EN 61000-6-4
Emission, industrial environmental
EN 61000-6-2
Immunity, industrial environmental
EN 61010-1
Safety
Refer to the installation manual for more information.
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CONFIGURING THE DEVICE
The Device can be configured in two ways:
A configuration from dip switches
A full configuration from flash (using Easy Setup Software)
WARNING!
Dip switches configuration are active only after a reboot!
WARNING!
The Dip Switch setting will overwrite the Flash setting so, if you need to use the flash configuration
you MUST set ALL dip switches to “OFF”.
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DIP SWITCH CONFIGURATION
3.1. Loading configuration from flash
If ALL Dip Switch 1…8 are OFF, the device use the Flash configuration (you must use the Easy Setup
Software for configure)
Load
Configuration
DIP1
DIP2
DIP3
DIP4
DIP5
DIP6
DIP7
DIP8
FROM FLASH
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
3.2. Setting the Modbus RTU Station Address
Dip Switch 1..4 are using for configure the Modbus RTU Station Address:
Modbus RTU
Address
DIP1
DIP2
DIP3
DIP4
1
ON
OFF
OFF
OFF
2
OFF
ON
OFF
OFF
3
ON
ON
OFF
OFF
4
OFF
OFF
ON
OFF
5
ON
OFF
ON
OFF
6
OFF
ON
ON
OFF
7
ON
ON
ON
OFF
8
OFF
OFF
OFF
ON
9
ON
OFF
OFF
ON
10
OFF
ON
OFF
ON
11
ON
ON
OFF
ON
12
OFF
OFF
ON
ON
13
ON
OFF
ON
ON
14
OFF
ON
ON
ON
15
ON
ON
ON
ON
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3.3. Setting the RS485 Baud rate
Dip Switch 5..6 are used for setting the Baud Rate
Baud Rate
DIP5
DIP6
9600
OFF
OFF
19200
ON
OFF
38400
OFF
ON
57600
ON
ON
WARNING!
The Parity bit can not be configured with the dip switches configuration but only from the Easy Setup
software. By setting the dip switches the parity is always set to “None” (8,N,1).
3.4. Setting the RMS/Bipolar mode and 50% - 100% full scale
Dip Switch 7: Select from True RMS Measure / Bipolar DC Measure
Dip Switch 8: Select 50% of full scale
The following figure is related to RMS measure (“Bipol”dip switch 7 = OFF):
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MODEL
BIPOL DIP7
SWITCH
50% FS DIP8
SWITCH
A
B
T201DCH50-M
OFF
OFF
25 A
50 A
T201DCH50-M
OFF
ON
12,5 A
25 A
T201DCH100-M
OFF
OFF
50 A
100 A
T201DCH100-M
OFF
ON
25 A
50 A
T201DCH300-M
OFF
OFF
150 A
300 A
T201DCH300-M
OFF
ON
75 A
150 A
The following figure is related to Bipolar measure (“Bipol”dip switch 7 = ON):
MODEL
BIPOL DIP7
SWITCH
50%FS DIP8
SWITCH
C
D
T201DCH50-M
ON
OFF
-50 A
+50 A
T201DCH50-M
ON
ON
-25 A
+25 A
T201DCH100-M
ON
OFF
-100 A
+100 A
T201DCH100-M
ON
ON
-50 A
+50 A
T201DCH300-M
ON
OFF
-300 A
+300 A
T201DCH300-M
ON
ON
-150 A
+150 A
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WARNING!
Dip switches configuration is active only after a reboot!
So, for example using the RMS measure with 0 A input the Output voltage is 0V but using the Bipolar measure
with 0 A input the Output voltage is 5V.
MODBUS RTU PROTOCOL
The Modbus protocol supported by the T201DCH50-100-300 is:
Modbus RTU Slave
For more information about these protocols, please refer to the Modbus specification website:
http://www.modbus.org/specs.php.
4.1. Modbus RTU function code supported
The following Modbus RTU functions are supported:
Read Holding Register (function 3) Max 5 Registers
Write Single Register (function 6)
Write Multiple registers (function 16) Max 2 Registers
WARNING!
All 32 bits values are stored into 2 consecutive registers
WARNING!
You can Read a Maximum of 5 Modbus Registers with the Read Holding Register function (function 3)
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WARNING!
You can Write a Maximum of 2 Modbus Registers with the Write Multiple Register function (function
16)
MODBUS REGISTERS TABLE
In the following table this abbreviations are used:
MS = Most significant
LS = Less significant
MSW = Most significant Word (16 bits)
LSW = Less significant Word (16 bits)
R = Read only register
RW = Read and writeable register
RW* = Read and writeable register, the value can be stored in flash by using the store flash command
Unsigned 16 bits = Unsigned 16 bits register (from 0 to 65535)
Signed 16 bits = 16 bits register with sign (from -32768 to +32767)
Float 32 bits = Floating point single precision 32 bits (IEEE 754) register
0x = Hexadecimal Value
Register Name
Comment
Register
Type
R/W
Default value
or Start Value
Modbus
Address
Register
Offset
Machine ID
Module ID code
Unsigned
16 bits
R
-
40001
0
Firmware
Revision
Firmware Revision Code
Unsigned
16 bits
R
-
40002
1
Command
This register is used for
sending commands to the
device.
The following commands
are supported:
49600
Store configuration in
Flash
49568
Reset the Module
Unsigned
16 bits
R/W
0
40006
5
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49920
Reset I max Value
49921
Reset I min Value
After the command is
executed the register will
return to 0 value
Modbus
Station
Address
Modbus RTU station
address
Unsigned
16 bits
RW*
1
40033
32
Baud Rate
RS485 Port Baud rate
0 = 4800 baud
1 = 9600 baud
2 = 19200 baud
3 = 38400 baud
4 = 57600 baud
5 = 115200 baud
6 = 1200 baud
7 = 2400 baud
Unsigned
16 bits
RW*
3
40034
33
Parity
Communication Parity Bit
0 = None (8,N,1)
1 = Even (8,E,1)
2 = Odd (8,O,1)
Unsigned
16 bits
RW*
0
40035
34
True
RMS/Bipolar
Mode
Select from True RMS or
Bipolar DC measurement
mode
0 = True RMS
1 = Bipolar DC
Unsigned
16 bits
RW*
0
40036
35
Filter
Select Filter level
0 = LOW
RMS =1400 ms response
Time
BIPOLAR = 78 ms
response Time
1 = HIGH
RMS = 2900 ms
response Time
BIPOLAR = 650 ms
response Time
Unsigned
16 bits
RW*
0
40038
37
Model
Select the model
Unsigned
16 bits
RW*
0 or 1 or 2
According to
40039
38
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0 = T201DCH50-M
1 = T201DCH100-M
2 = T201DCH300-M
the model
Start Input
Scale
Select the Start Input
Scale
Float32
RW*
0 A
40041
(LSW)
40042
(MSW)
40-41
Stop Input
Scale
Select the Stop Input
Scale
Float32
RW*
100.0 A
40043
(LSW)
40044
(MSW)
42-43
Start output
Scale
Select the Start output
Scale
Float32
RW*
0 V
40045
(LSW)
40046
(MSW)
44-45
Stop output
Scale
Select the Stop output
Scale
Float32
RW*
10.0 V
40047
(LSW)
40048
(MSW)
46-47
Float Current
Value
[A]
Current Measure Value in
floating point LSW-MSW
[A]
Float32
R
-
40049
(LSW)
40050
(MSW)
48-49
Integer Current
Value
[A x100]
Current Measure Value in
signed integer
[A x100]
For example:
18534 = 185.34 A
-2500 = -25.00 A
Signed 16
Bits
R
-
40051
50
Current MIN
[A]
Minimum Current Value
(use register Command
for reset the value)
The value is set to 0 at
startup
Float32
R
-
40059
(LSW)
40060
(MSW)
58-59
Current MAX
[A]
Maximum Current Value
(use register Command
for reset the value)
The value is set to 0 at
startup
Float32
R
-
40061
(LSW)
40062
(MSW)
60-61
Output Voltage
[V]
Output Voltage
Float32
R
-
40063
(LSW)
40064
(MSW)
62-63
Inverse Float
Current Value
[A]
Current Measure Value in
floating point MSW-LSW
[A]
Copy of Float Current
Float32
R
-
40065
(MSW)
40066
(LSW)
64-65
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FULL CONFIGURATION WITH EASY SETUP
For configure all the device parameters you must use the RS485 Port and the Easy T201DCH-M software
included in the Easy Setup Suite.
You can download the Easy Setup software for free from:
www.seneca.it
6.1. Easy Setup Menu
Connect: Use the connect icon for connect the PC to the Device. Note that you need a RS485 to USB
converter like Seneca S117P1 or S107USB for connect the device to a PC.
New: Load the default parameters in the actual project
Open: Open a stored project
Save: Save the actual project
Read: Read the actual configuration from the device (if the dip switches are not ALL OFF the configuration is
read from dip switches)
WARNING!
If you read a configuration from the device with at least one dip switch to “ON” the software will read
the dip switch configuration because overwrite the flash configuration.
Send: Send the project configuration (if the dip switches are not ALL OFF the device use the dip switch
configuration and NOT the sent configuration)
Test: Start a Registers read, you can also reset the MIN/MAX values and start/stop a Datalogger
Value
Registers with Inverse
(MSW-LSW) Floating
Point
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6.2. Creating a Project Configuration
WARNING!
You must set all dip switches to OFF before sending the configuration to the device or the actual
configuration will be overwritten from the dip switches configuration!
The parameters that can be configured are:
Model: Select between T201DCH50-M, T201DCH100-M or T201DCH300-M model.
Station Address: Select The Modbus RTU station address
Baud Rate: Select the Baud rate from 1200 to 115200 baud
Parity: Select NONE, ODD or EVEN
Mode: Select the current measure mode: True RMS or DC Bipolar
Filter: Select between LOW or HIGH:
FILTER
RMS RESPONSE
TIME
(10%-90% F.S.)
BIPOLAR DC
RESPONSE TIME
(10%-90% F.S.)
LOW
1400 ms
78 ms
HIGH
2900 ms
650 ms
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Input Start/Stop Scale and Output Start/Stop Scale: Select the Start/Stop input and Output Start/Stop scale
see figure:
For example:
INPUT START = 20 A
INPUT STOP = 80 A
OUTPUT START = 2 V
OUTPUT STOP = 6 V
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Note that with an input of 0 A the output is 0 V and over 80 A the output is over 6V (6V and 2V are not a limit).
WARNING!
The Output Voltage is limited to about 10.8V
6.3. Testing the Device
When the configuration is sent to the device you can test the actual configuration by using the icon:
The test configuration will acquire the measure from the Modbus registers, you can also reset the MIN/MAX
values.
6.3.1. The datalogger
The datalogger can be used for acquire data that can be used with an external software (for example Microsoft
Excel ™). It is possible to set how much time to acquire the samples (minimum 1 second):
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The datalogger will create a file in a standard .csv format that can be open with external tools:
The file can also be open with a text editor:
INDEX;TYPE;TIMESTAMP;I;IMAX;IMIN;VOUT
1;LOG;18/07/2017 17:37:16;9,94182968139648;10,0166397094727;0;5,50153207778931
2;LOG;18/07/2017 17:37:17;9,98420906066895;10,0598001480103;0;5,50216913223267
3;LOG;18/07/2017 17:37:18;10,0491199493408;10,0602102279663;0;5,4690899848938
4;LOG;18/07/2017 17:37:19;9,99160003662109;10,0602102279663;0;5,50054502487183
5;LOG;18/07/2017 17:37:20;10,0064001083374;10,0602102279663;0;5,49996995925903
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6;LOG;18/07/2017 17:37:21;10,0018796920776;10,0602102279663;0;5,50327777862549
7;LOG;18/07/2017 17:37:22;9,94471645355225;10,0778799057007;0;5,50132608413696
8;LOG;18/07/2017 17:37:23;9,97722816467285;10,0778799057007;0;5,50247716903687
9;LOG;18/07/2017 17:37:24;10,0623197555542;10,0778799057007;0;5,50186014175415
10;LOG;18/07/2017 17:37:25;9,99120616912842;10,0778799057007;0;5,50126504898071
11;LOG;18/07/2017 17:37:26;10,0330896377563;10,0778799057007;0;5,50066900253296
12;LOG;18/07/2017 17:37:27;10,0363702774048;10,0778799057007;0;5,50058698654175
13;LOG;18/07/2017 17:37:29;10,0059795379639;10,0778799057007;0;5,50120306015015
14;LOG;18/07/2017 17:37:30;9,97681522369385;10,0778799057007;0;5,50337982177734
15;LOG;18/07/2017 17:37:31;10,0129499435425;10,0778799057007;0;5,50225019454956
16;LOG;18/07/2017 17:37:32;10,0162401199341;10,0778799057007;0;5,50075101852417
17;LOG;18/07/2017 17:37:33;10,0614995956421;10,0778799057007;0;5,50206613540649
ACCESSORIES
For connect T201DCH50-100-300-M to a PC you need a RS485 to USB converter. The RS485 to USB
converters are:
7.1. Seneca S107USB
You can buy the Seneca S107USB also from our online store:
https://www.seneca.it/en/linee-di-prodotto/acquisizione-dati-e-automazione/moduli-di-
comunicazione/convertitori-seriali-usb/s107usb
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7.2. Seneca S117P1
S117P1 is a converter that realizes a serial connection via RS232, RS485 or TTL, using a USB port on the
PC.
Through the drivers the operating system treats the serial interface like a standard serial port, allowing the use
of the converter through any software that can communicate with the standard serial ports present in the
operating system (COM1, COM2, ecc.). RS232, RS485 and TTL ports are electrically isolated from the USB
avoiding most of the problems of electrical noises. The package of the product includes USB-miniUSB cable,
serial cable Jack-DB9F and programming cable RJ10-AMP
You can buy the Seneca S117P1 also from our online store:
https://www.seneca.it/en/linee-di-prodotto/acquisizione-dati-e-automazione/moduli-di-
comunicazione/convertitori-seriali-usb/s117p1
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