Elseta IOMOD T User manual

Elseta
08/10/2017
V1.0
ELSETA
IOMOD T
User manual

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
2
COPYRIGHTS AND TRADEMARKS
Elseta are UAB Aedilis trademark that identifies of UAB Aedilis manufactured. All of the product and
the user manual of the right to ownership of the copyright belongs to "Aedilis. These documents and
the product properties can not be changed without company Aedilis' knowledge and written consent.
User manual may not be modified without company Aedilis' notice.
DECLARATION OF CONFORMITY
(in accordance with ISO / IEC Guide 22 and EN Section 45014)
Manufacturer: UAB Aedilis
Address of the manufacturer L. Zamenhofo st. 5 LT Vilnius, Lithuania
We claim that:
The device IOMOD T
Conforms to the following standards:
EMC:
Radiation EN 55022 (Class A)
1 emitted radiation (30-1000 MHz)
Second radiation conductors (0.15-30 MHz)
EN 50082-1 immunity test
1 IEC 801-3: Radio-frequency electromagnetic field
2 IEC 801-2: Electrostatic discharge.
3 IEC 801-4: Quick periodic electrostatic discharges
Additional information:
The device complies with the Low Voltage Directive 73/23 / EEC and EMC Directive 89/336 / EEC.
Device assembly complies with the RoHS Directive.
Manufacturer contact:
Equipment quality controller
UAB Aedilis
Address: L. Zamenhofo g. 5, LT 06332, Vilnius, Lithuania
Phone: [phone]
E-mail. Email: [e-mail]

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
3
SAFETY REQUIREMENTS
This equipment’s operating notes, which must be met for your personal safety, as well as to avoid
damage to the equipment, are marked with a warning triangle symbol and the various degrees of risk
of falling within signs. All work related to electronic systems design, installation, commissioning,
adjustment and maintenance should be carried out in accordance with the safety requirements.
EQUIPMENT MANUAL - USED SYMBOLS
Danger - important notice which may affect the safety of the user or device.
Attention - notice on possible problems that may arise in individual cases.
Information Notice - the information that is useful advice or special places.
Warning of the danger. The work may be performed only by a qualified
professional. Equipment installation, commissioning and maintenance may
only be performed by a qualified professional. If the safety notes in this
manual, the term refers to persons qualified specialists authorized to perform
commissioning, grounding and labeling devices, systems and circuits. The
person must: Be aware of occupational safety in the workplace. Need to
understand the equipment components. Electrical equipment. Have the
knowledge and skills to identify a component beneath the voltage.
To maintain the equipment necessary to always turn off the power supply
before installing or dismantling works. It must be in mind that even though
alone equipment, but can have a common ground connection. Always before
connecting the power supply, cables and interconnect components must be
inspected.
This product can not be implemented, or resold to install in areas that are
high-security as nuclear power plants, aircraft navigation, military equipment,
transport traffic in management. In areas where equipment failure can result
in of nature and human injury.
Do not operate the equipment in extreme weather conditions, as they may
affect the operation of the equipment.

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
4
TABLE OF CONTENTS
COPYRIGHTS AND TRADEMARKS.................................................................................................2
DECLARATION OF CONFORMITY ..................................................................................................2
SAFETY REQUIREMENTS...............................................................................................................3
EQUIPMENT MANUAL - USED SYMBOLS ......................................................................................3
TABLE OF CONTENTS.....................................................................................................................4
1. Introduction ................................................................................................................................6
2. Features.....................................................................................................................................6
3. Device operational information ...................................................................................................6
Supported MODBUS functions ......................................................................................................7
01 (0x01) Read Coil Status ........................................................................................................7
02 (0x02) Read Input Status.......................................................................................................7
03 (0x03) Read Holding Registers..............................................................................................7
04 (0x04) Read Input Registers..................................................................................................8
05 (0x05) Force Single Coil ........................................................................................................8
06 (0x06) Preset Single Register................................................................................................8
16 (0x10) Preset Multiple Registers............................................................................................8
Modbus register mapping table......................................................................................................8
Fault registers ............................................................................................................................9
Fault register.........................................................................................................................10
Fault mask register ...............................................................................................................10
IEC-60870-103 operation.............................................................................................................11
Fault registers ..........................................................................................................................11
Fault register.........................................................................................................................11
Fault mask register ...............................................................................................................12
4. Technical information................................................................................................................13
5. Device Connection ...................................................................................................................14
Power connection ........................................................................................................................14
RS485 serial interface..................................................................................................................14
RTD sensor connection ...............................................................................................................16
Digital input connection................................................................................................................17
USB interface ..............................................................................................................................17

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
5
6. Configuration over USB............................................................................................................19
a. Driver installation ..................................................................................................................19
b. IOMOD T configuration with PuTTY terminal ............................................................................20
c. Main Menu............................................................................................................................21
Modbus ....................................................................................................................................21
IEC-60870-103.........................................................................................................................21
d. Firmware upgrade over USB.................................................................................................22
e. Testing With “THE VINCI” software.......................................................................................23
7. Information of the equipment manufacturer ..............................................................................26

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
6
1. Introduction
IOMOD T is used for temperature data monitoring over Modbus or IEC-60870-103 using resistance
temperature detector (RTD) platinum sensor and negative temperature coefficient (NTC) thermistors.
Device is also capable of reading up to count pulses of three bidirectional digital inputs up to ±24 volts.
2. Features
●Temperature sense with ±0.5 °C accuracy over all operating conditions;
●Three bidirectional digital inputs - 12-24 VDC, 2 kV isolation voltage;
●Selectable PT100 ar PT1000 temperature sensor (2, 3 or 4 wire);
●Possibility to connect NTC resistor to system;
●Configurable temperature and sensors’ fault detection;
●Temperature sensing range from -200 up to 800 °C when using platinum RTD sensors, from -
40 up to 200 °C when using NTC thermistors;
●Configurable Modbus or IEC-60870-103 settings: Slave ID, baud rate, parity and stop bits,
RS485 terminating resistor, etc.
●Firmware upgrade over USB;
●Two connectors for RS485, for easier device connection on one line.
3. Device operational information
IOMOD uses Modbus (RTU) or IEC-60870-103 protocols over RS485 connection. Default Modbus
and IEC-60870-103 settings are: 9600 bauds/s baudrate, 8N1, Slave (Link) address - 1.
To read temperature using Modbus (RTU) protocol user can use device with default settings without
configuring it. To read temperature from RTD sensor, send 04 Modbus command (Read Input
Registers) with resolution of first (0) and second (1) registers. To read temperature from NTC sensor,
send 04 Modbus command (Read Input Registers) with resolution of third (2) and fourth (3) registers.
Two words read by Modbus represent a float type variable.
To read temperature from any of aforementioned sensors using IEC-60870-103 protocol user should
first configure it over USB. To send RTD or NTC sensor temperature it should first be enabled in RTD
parameters menu. Only RTD sensor temperature sending is enabled by default. After enabling
transmission from any of the two sensors data will be available as cyclically read values. These values
are represented as 12 bit integers in a range from -200°C to 200°C - temperature value is therefore
multiplied by 10 to have resolution of 0.1 °C unless full range of RTD (from -200°C to 800°C) is
selected - then 1 °C resolution is achieved and temperature is not multiplied by any number.
Thermistor temperature with 0.1 °C fits into 12-bit measurand, so there is no range selection for NTC
sensors and temperature can be measured from from -40°C to 200°C.
For further information regarding setting temperature parameters, reading digital inputs, their counter
values and configurable options please refer to table shown below, also supported MODBUS and IEC-
60870-103 functions described in paragraphs described below.

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
7
CONFIGURABLE OPTIONS
OVER USB
OVER MODBUS
OVER IEC-60870-103
Slave Address
Yes
No
No
Baudrate
Yes
No
No
Data, Stop and Parity bits
Yes
No
No
RS485 Terminating Resistor
Yes
No
No
Input pull-up
Yes
No
No
Input filter-time
Yes
No
No
RTD parameters
Yes
No
No
Default settings
Yes
No
No
Setting temperature limits
Yes
Yes
No
Fault configuration and
clearing
Yes
Yes
No
Defining pulse counter values
Yes
Yes
No*
* Counters/Timers are not implemented in IEC-60870-103 firmware version
Supported MODBUS functions
01 (0x01) Read Coil Status
Used to read fault flag. Fault is logical high if any configured fault has occurred, zero otherwise.
Fault flag should be cleared manually.
02 (0x02) Read Input Status
Reads status of digital inputs (OFF or ON states). IOMOD T has 3 digital inputs which values are kept
on addresses 0 to 2. For further register explanation please check Modbus register mapping table.
03 (0x03) Read Holding Registers
May be used to read holding registers containing temperature limits defined by user in degrees
Celsius, fault mask register, pulse count, on time registers for any of three digital inputs.
Temperature limits are defined as a 16-bit integer values. Values that are below or above the
predefined limits are ignored. These limits are described in Modbus register mapping table below. If
upper limit value is lower than lower limit value, these values are switched between them.
Fault mask register contains information about fault bits that would be lifted in fault register if any
particular fault has occurred. Its value is kept at holding register at address 11.
Fifteen registers from 20 to 34 are used to hold values of calculated pulse counts and on times for
digital inputs. Pulse count is held as 16-bit wide value, on time in milliseconds and seconds is held as
32-bit wide values. To get actual on time, user should sum on time in milliseconds and seconds. Values
are held most significant word first.

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
8
04 (0x04) Read Input Registers
May be used to read current temperature values and faults.
As temperature is kept as a 4-byte wide float value, two neighboring register are used to keep it. RTD
values are kept at addresses 0 and 1, NTC values are kept at addresses 2 and 3. Value read can be
easily converted using any converter capable of converting floats based of IEEE-754 standard.
Fault register value is read as a one 16-bit input register at address 10. Meanings of individual bits
are explained below, in subsection Fault registers.
05 (0x05) Force Single Coil
Used to clear flag condition. Writing zero clears the flag, writing one does nothing. Flag should be
cleared manually if fault condition has occurred.
06 (0x06) Preset Single Register
Used to set holding registers one by one described when explaining 03 Modbus function. That means
that arbitrary value may be written to pulse count, on time registers, etc. It is advised to set most
significant word first.
16 (0x10) Preset Multiple Registers
Used to set multiple registers by one instruction. Registers that can be changed are: pulse count, on
time in both seconds and milliseconds. This may be useful when in need to clear all input values
instantly without any transmission delays.
Modbus register mapping table
Register
Description
Value range
Read coil status (01)
00010
Reading fault flag
0-1
Read discrete inputs (02)
00000-0002
Reading digital inputs DI1-DI3
0-7
Read holding register (03)
00000
Get lower RTD temperature limit
-200-800
00001
Get upper RTD temperature limit
-200-800
00002
Get lower NTC temperature limit
-40-200
00003
Get upper NTC temperature limit
-40-200
00011
Fault Mask register
0-57836
00020-00022
Pulse count for DI1-DI3
0-65535
00023-00028
On time, in seconds, for DI1-DI3, MSB first
0-65535
00029-00034
On time, in milliseconds, for DI1-DI3, MSB first
0-65535
Read input registers (04)

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
9
00000
Temperature from RTD Sensor, MSB
0-65535
00001
Temperature from RTD Sensor, LSB
0-65535
00002
Temperature from NTC Sensor, MSB
0-65535
00003
Temperature from NTC Sensor, LSB
0-65535
00010
Fault register
0-57836
Force single coil (05)
00010
Clearing fault flag (0 to clear)
0-1
Preset Single Register (06)
00000
Set lower RTD temperature limit*
-200-800
00001
Set upper RTD temperature limit*
-200-800
00002
Set lower NTC temperature limit*
-40-200
00003
Set upper NTC temperature limit*
-40-200
00011
Set Fault Mask register
0-65535
00020-00022
Set pulse count register for DI1-DI3
0-65535
00023-00028
Set On Time register of seconds for DI1-DI3, MSB first**
0-65535
00029-00034
Set On Time register of milliseconds for DI1-DI3, MSB first**
0-65535
Preset Multiple Registers (16)
00020-00022
Set pulse count register for DI1-DI3
0-65535
00023-00028
Set On Time register of seconds for DI1-DI3**
0-65535
00029-00034
Set On Time register of milliseconds for DI1-DI3**
0-65535
*if lower limit is set higher that upper limit, limits will be switched in order. Temperature is encoded as signed
integer.
**It is advised to set most significant word of counter/timer first or preset multiple registers (Modbus operation
16)
Fault registers
Fault register (Modbus address - 40010) is read-only. It represent faults that occurred during operation
of device. To enable showing desired fault user should set appropriate bits in Fault mask register
(Modbus address - 30011). Default values are shown in brackets below.
Fault register[15:12] show flags that are lifted in temperature limits are exceeded. Fault register[10]
informs if NTC is not connected. Bits[7:5,3:2] inform about faults that were detected by RTD reading
chip. These faults are usually lifted if unsuitable software or jumper settings are set or RTD is faulty
or not connected.

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
10
Fault register
15
(R-0)
14
(R-0)
13
(R-0)
12
(R-0)
11
(R-0)
10
(R-0)
9
(R-0)
8
(R-0)
RTD
Temperatur
e Hi
Threshold
RTD
Temperature
Lo
Threshold
NTC
Temperatur
e Hi
Threshold
NTC
Temperature
Lo Threshold
-
NTC Not
connected
-
-
7
(R-0)
6
(R-0)
5
(R-0)
4
(R-0)
3
(R-0)
2
(R-0)
1
(R-0)
0
(R-0)
RTD Code
Hi
Threshold
RTD Code
Lo
Threshold
RTD
REFIN- >
0.85 x
VBIAS
-
RTD
FORCE
- Open
RTD
Overvoltage/
Undervoltag
e
-
-
Fault mask register
15
(R/W-0)
14
(R/W-0)
13
(R/W-0)
12
(R/W-0)
11
(R/W-0)
10
(R/W-0)
9
(R/W-0)
8
(R/W-0)
RTD
Temperatur
e Hi
Threshold
Fault
Enable
RTD
Temperature
Lo
Threshold
Fault Enable
NTC
Temperatur
e Hi
Threshold
Fault
Enable
NTC
Temperature
Lo
Threshold
Fault Enable
-
NTC Not
connected
Fault Enable
-
-
7
(R/W-1)
6
(R/W-1)
5
(R/W-1)
4
(R/W-0)
3 (R/W-
1)
2
(R/W-1)
1 (R/W-
0)
0 (R/W-
0)
RTD Code
Hi
Threshold
Fault
Enable
RTD Code
Lo
Threshold
Fault Enable
RTD
REFIN- >
0.85 x
VBIAS Fault
Enable
-
RTD
FORCE-
Open
Fault
Enable
RTD
Overvoltage/
Undervoltag
e Fault
Enable
-
-

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
11
IEC-60870-103 operation
IEC 60870-5-103 is a standard for power system control and associated communications. It defines a
companion standard that enables interoperability between protection equipment and devices of a
control system in a substation. The device complying with this standard can send the information using
two methods for data transfer - either using the explicitly specified application service data units
(ASDU) or using generic services for transmission of all the possible information. The standard
supports some specific protection functions and provides the vendor a facility to incorporate its own
protective functions on private data ranges.
IOmod T device might act as a IEC-60870-103 slave if appropriate firmware is uploaded. For more
information about firmware upload check chapter Firmware upgrade over USB.
IEC-60870-103 operation differs from Modbus operation in a way that Modbus messages are not time-
tagged. IEC-60870-103 contains timestamp information therefore counter/timer information for digital
inputs is considered redundant and therefore is not configurable to be sent. Master may read (if
configured) temperature from RTD sensor, temperature from NTC thermistor, three digital inputs and
data from user-configured fault register. Fault is not cleared and fault register is not reset automatically,
therefore user should first eliminate the source of fault and then reset the device. Fault mask reset
register is also not set via IEC-60870-103, user should predefine it first via USB communication.
Fault register value is read as a standard-defined 12-bit measurand. Meanings of individual bits are
explained below, in subsection Fault registers.
User can define RTD and thermistor (NTC) temperature upper and lower limit values so that when
any limit is exceeded, overflow flag will be lifted according to IEC-60870-103 standard rules for
measurands. Note that limit values are set globally so if narrower range is selected limit values won’t
be able to be higher than defined by standard even if limits are explicitly defined as higher values.
That is, if narrow range is selected for RTD but higher temperature limit is above 200°C, reading
temperatures above 200°C will be considered as an overflow condition. Temperature limit flag bits are
defined as Fault Register[11:8].
Fault registers
Fault register is read-only. It represent faults that occurred during operation of device. To enable
showing desired fault user should set appropriate bits in Fault mask register via USB. Default values
are shown in brackets below.
Fault register[11:18] show flags that are lifted if temperature limits are exceeded. Fault register[1]
informs if NTC thermistor is not connected. Bits[7:5,3:2] inform about faults that were detected by RTD
reading chip. These faults flag are usually set if unsuitable software or jumper settings are set or RTD
is faulty or not connected. Note that fault bits are set if they are configured to be set in Fault Mask
register.
Fault register
15
(R-0)
14
(R-0)
13
(R-0)
12
(R-0)
11
(R-0)
10
(R-0)
9
(R-0)
8
(R-0)
-
-
-
-
RTD
Temperature
Hi
Threshold
RTD
Temperature
Lo Threshold
NTC
Temperature
Hi Threshold
NTC
Temperature
Lo
Threshold
7
6
5
4
3
2
1
0

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
12
(R-0)
(R-0)
(R-0)
(R-0)
(R-0)
(R-0)
(R-0)
(R-0)
RTD
Code Hi
Threshold
RTD
Code Lo
Threshold
RTD
REFIN- >
0.85 x
VBIAS
-
RTD
FORCE-
Open
RTD
Overvoltage/
Undervoltage
-
NTC Not
connected
Fault mask register
15
(R/W-0)
14
(R/W-0)
13
(R/W-0)
12
(R/W-0)
11
(R/W-0)
10
(R/W-0)
9
(R/W-0)
8
(R/W-0)
-
-
-
-
RTD
Temperature
Hi Threshold
Fault Enable
RTD
Temperature
Lo Threshold
Fault Enable
NTC
Temperature
Hi
Threshold
Fault Enable
NTC
Temperature
Lo Threshold
Fault Enable
7
(R/W-1)
6
(R/W-1)
5
(R/W-1)
4
(R/W-0)
3
(R/W-1)
2
(R/W-1)
1
(R/W-0)
0
(R/W-0)
RTD
Code Hi
Threshold
Fault
Enable
RTD
Code Lo
Threshold
Fault
Enable
RTD
REFIN-
> 0.85 x
VBIAS
Fault
Enable
-
RTD
FORCE-
Open Fault
Enable
RTD
Overvoltage/
Undervoltag
e Fault
Enable
-
NTC Not
connected
Fault Enable

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
13
4. Technical information
System
1.
Dimensions
54 (H) x 78 (W) x 118 (L), mm
2.
Case
ABS, gray, transparent top, IP65
3.
Working environment
Indoors
4.
Working temperature
-35 ÷ +80°C
5.
Recommended operating
conditions
5 – 60°C and 20 – 80% RH;
6.
Configuration
USB
7.
Firmware upgrade
USB – mass storage device
Electrical Characteristics
8.
Termination Resistor
Selectable, 120Ω
9.
Power supply
12-24VDC, 0.3W (nominal);
5-33VDC (full range)
10.
Inputs
12-24 VDC, 2 kV isolation, bidirectional

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
14
5. Device Connection
Power connection
IOmod T can be powered through main power connector (see Fig. 5.1) or through USB. Apply
+12/24VDC to VIN+ and 0 V to VIN-. The device has a built-in reverse voltage polarity, overcurrent and
overvoltage protection.
Fig. 5.1. Power connector
RS485 serial interface
IOmod T has dual RS485 spring type connector (see Fig. 5.2). Connect RS485 cable to the one pair
of RS485 A and RS485 B marked contacts. A second pair of RS485 A and RS485 B contacts can be
used for easy RS485 bus extension with a minimum possible cable stub.
Fig. 5.2. RS485 interface connector

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
15
IOMOD T has integrated 120Ω termination resistor which can be enabled or disabled over USB
configuration. It is recommended to use termination at each end of the RS485 cable. See typical
connection diagram on Fig. 5.3.
Fig. 5.3. Bus configuration example diagram
IOMOD T has 1/8 Unit load receiver which allows to have up to 256 units on line (compared to standard
32 units). To reduce reflections, keep the stubs (cable distance from main RS485 bus line) as short
as possible when connecting device.

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
16
RTD sensor connection
Fig. 5.4. RTD sensor colour codes
IOmod T accepts 2-wire, 3-wire or 4-wire connection types of RTD sensors (PT100, PT1000). Firstly,
select a sensor type (PT100 or PT1000) using a jumper (Fig. 5.6). Secondly, use the following
instructions depending on the number of wires of a selected RTD sensor.
2-wire RTD sensor: connect red wire to RTDIN+ and white wire (or black) to RTDIN- contacts. The
jumpers between RTDIN+ and FORCE+, RTDIN- and FORCE- must be set.
3-wire RTD sensor: connect one red wire to RTDIN+, second red wire (compensating lead wire) to
FORCE+ and white (or black) wire to RTDIN-. The jumper between RTDIN- and FORCE- must be set.
4-wire RTD sensor: connect red wires to RTDIN+ and FORCE+ contacts, white (or black) wires to
RTDIN- and FORCE- contacts. NO jumpers must be set.
Fig. 5.5. RTD sensor connector

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
17
Fig. 5.6. IOmod T Jumpers
Digital input connection
IOmod T has 3 bidirectional digital inputs. Nominal voltage range for inputs is 12-24 VDC. Inputs are
galvanically isolated (2 kVRMS) through optocouplers. Since inputs are bidirectional, any input voltage
polarity is accepted.
Fig. 5.7. IOmod DI Connectors
USB interface
IOmod T USB interface is used for configuration, diagnostics and firmware updates. IOmod T is
powered through USB when connected, no extra power connection needed for operation. Use a USB
mini B cable for connection.

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
18
Fig. 5.7. IOmod USB Connector

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
19
6. Configuration over USB
a. Driver installation
Device requires USB drivers to work as a Virtual COM port. First-time connection between device and
computer could result in “Device driver software was not successfully installed” error such as one
shown in Fig.6.1.
Fig. 6.1. Possible installation error
User then should manually install drivers by selecting downloaded driver folder:
Go to Control Panel -> Device Manager;
Select failed device;
Press “Update driver software”; following screen should appear:
Fig. 6.2. Driver update screen
Select “x86” driver for 32bit machine, or x64 for 64bit machine. If not sure, select root folder (folder
in which x64 and x86 lays inside).

IOMOD T
08/10/2017
V1.0 | ELSETA | User manual
20
Fig. 6.3. Contents of folder used to install drivers
b. IOMOD T configuration with PuTTY terminal
Configuration of IOMOD device is done through CLI (Command Line Interface) on virtual COM port.
Drivers needed for MS Windows to install VCOM will be provided. To open up CLI simply connect to
specific VCOM port with terminal software (it is advised to use PuTTY terminal software. If other
software is being used, user might need to send <return> symbol after each command). When
connected user should immediately see main screen similar to one in Fig.6.4.
Fig. 6.4. Main configuration menu example
Navigation is performed by pressing number connected to its function. User then should proceed by
following further on-screen instructions. For example, to set desired slave address, press [1] to enter
Slave Address screen; enter new configuration; press [RETURN] to save, or [ESC] to cancel changes.
When done, press [0] (exit) before disconnecting device. Default values are set by pressing [7] on
main screen, and later confirming these changes by pressing [1].