SATEL I-LINK 100 MB I/O-converter
User Guide, Version 1.5
1
TABLE OF CONTENTS
TABLE OF CONTENTS .................................................................................................................... 1
IMPORTANT NOTICE ....................................................................................................................... 2
PRODUCT CONFORMITY ................................................................................................................ 3
WARRANTY AND SAFETY INSTRUCTIONS .................................................................................. 4
1 GENERAL ...................................................................................................................................... 5
1.1 SATEL I-LINK 100 MODBUS I/O- CONVERTER .................................................................. 5
2 SPECIFICATIONS ..................................................................................................................... 6
3 FUNCTIONS .............................................................................................................................. 7
3.1 OPERATIONAL VOLTAGE, 9 – 30 VDC ................................................................................... 7
3.2 ALARM OUTPUT, AL OUT .................................................................................................... 7
3.3 +OUT ................................................................................................................................. 7
3.4 DIGITAL INPUTS (I1…I4) AND OUTPUTS (O1…O4 ) .............................................................. 7
3.5 ANALOGUE INPUTS (A1 –, A1+, A2-, A2+) AND OUTPUTS (AO1-, AO1+, AO2-, AO2+) ........ 7
3.6 INDICATORS ......................................................................................................................... 7
3.7 SWITHCES ........................................................................................................................... 7
4 OPERATION .............................................................................................................................. 8
4.1 PRELIMINARY SETTINGS ....................................................................................................... 8
5 MODBUS SERIAL TRANSMISSION MODE ............................................................................ 8
6 MODBUS ADDRESSES ............................................................................................................ 9
7 SUPPORTED MODBUS FUNCTIONS ...................................................................................... 9
8 I-LINK MAIN DEVICE DATA AREAS ....................................................................................... 9
8.1 DIGITAL INPUTS ................................................................................................................... 9
8.2 DIGITAL OUTPUTS .............................................................................................................. 10
8.3 ANALOGUE INPUTS ............................................................................................................ 10
8.4 ANALOGUE OUTPUTS ......................................................................................................... 11
8.5 REPORT SLAVE ID. ............................................................................................................ 11
8.6 SAFE MODE. ...................................................................................................................... 12
9 EXTERNAL DEVICES ............................................................................................................. 13
9.1 DIGITAL INPUTS ................................................................................................................. 13
9.2 DIGITAL OUTPUTS .............................................................................................................. 14
9.3 ANALOGUE INPUTS ............................................................................................................ 15
9.4 ANALOGUE OUTPUTS ......................................................................................................... 15
10 SAFE MODE, DIGITAL OUTPUTS (I-LINK 300) .................................................................... 16
11 SAFE MODE, ANALOGUE DEVICES (I-LINK 200) ............................................................... 16
12 FACTORY SETTINGS ............................................................................................................. 17
13 ACCESSORIES ....................................................................................................................... 17
14 EXTENSION MODULES ......................................................................................................... 18
15 CONNECTION EXAMPLES .................................................................................................... 19
SATEL I-LINK 100 MB I/O-converter
User Guide, Version 1.5
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IMPORTANT NOTICE
All rights to this manual are owned solely by SATEL OY (later called also SATEL). All rights
reserved. The copying of this manual without the written permission from the owner of the rights
by printing, copying, recording or by any other means or the full or partial translation of the
manual to any other language including all programming languages using any electrical,
mechanical, magnetic, optical, manual or other methods or devices is forbidden.
SATEL reserves the right to change the technical specifications or functions of its products or to
discontinue the manufacture of any of its products or to discontinue the support of any of its
products without any written announcement and urges its customers to ensure, that the
information at their disposal is valid.
SATEL software and programs are delivered ”as is”. The manufacturer does not grant any kind
of warranty including guarantees on saleability and guarantees pertaining to applicability to a
certain application. Under no circumstances is the manufacturer or the developer of a program
responsible for any possible damages caused by the use of a program. The names of the
programs as well as all copyrights relating to the programs are the sole property of SATEL. Any
transfer, licensing to a third party, leasing, renting, transportation, copying, editing, translating,
modifying into another programming language or reverse engineering for any intent is forbidden
without the written consent of SATEL.
SATEL PRODUCTS HAVE NOT BEEN DESIGNED, INTENDED NOR INSPECTED
TO BE USED IN ANY LIFE SUPPORT RELATED DEVICE OR SYSTEM RELATED
FUNCTION NOR AS A PART OF ANY OTHER CRITICAL SYSTEM AND ARE
GRANTED NO FUNCTIONAL WARRANTY IF THEY ARE USED IN ANY OF THE
APPLICATIONS MENTIONED.
Salo, Finland 2012
SATEL I-LINK 100 MB I/O-converter
User Guide, Version 1.5
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PRODUCT CONFORMITY
SATEL I-LINK 100 MODBUS
Hereby, SATEL Oy declares that SATEL I-LINK 100 MODBUS I/O converters are in compliance
with the essential requirements and other relevant provisions of Directive 89/336/EEC.
Therefore the equipment is labelled with the following CE-marking.
SATEL I-LINK 100 MB I/O-converter
User Guide, Version 1.5
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WARRANTY AND SAFETY INSTRUCTIONS
Read these safety instructions carefully before using the product:
o Warranty will be void, if the product is used in any way, which is in contradiction with the
instructions given in this manual, or if the housing of the radio modem has been opened
or tampered with.
o The radio modem is to be used only on frequencies allocated by local authorities and
without exceeding the given maximum allowed output power ratings. SATEL is not
responsible, if any products manufactured by it are used in unlawful ways.
o The devices mentioned in this manual are to be used only according to the instructions
described in this manual. Faultless and safe operation of the devices can be guaranteed
only if the transport, storage, operation and handling of the devices are appropriate. This
also applies to the maintenance of the products.
To prevent damage both the radio modem and any terminal devices must always be switched
OFF before connecting or disconnecting the serial connection cable. It should be ascertained
that different devices used have the same ground potential. Before connecting any power cables
the output voltage of the power supply should be checked.
SATEL I-LINK 100 MB I/O-converter
User Guide, Version 1.5
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1 GENERAL
1.1 SATEL I-LINK 100 MODBUS I/O-converter
The SATEL I-LINK 100 MODBUS is an I/O-converter for Modbus systems. The device works
together with SATELLINE modems. A digital or analogue I-LINK 100 MODBUS signal can be
sent / received through the radio modem using the Modbus protocol.
Output Connectors
O1...O4 Digital outputs
- + +/- for analogue
outputs
AO1, AO2 Analogue outputs
Output indicators
ON Power ON/OFF
O1-O4, AO1, AO2 Output indicators
Setting switches
ADDRESS Modbus address.
Max. 247 pcs.
BAUD Baud rate settings
PARITY
- lower row No. 3, 4 Even, None, Odd
Input indicators
ALARM Indicator for failed
transmission
I1...I4, AI1, AI2 Input indicators
Input Connectors
9-30VDC/ - + Supply Voltage
AL OUT Alarm output
+ Common + for digital
inputs and extension units
I1...I4 Digital inputs
AI1, AI2 Analogue inputs
- + - /+ for analogue inputs
RADIO MODEM Connector for radio modem
EXTENSION Connector for extension units
I-LINK 200 and I-LINK 300.
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2 SPECIFICATIONS
FEATURE min-max typical note
Voltage +9…+30 Vdc 24 Vdc, typical
Power consumption 0.3...1.0 W -
Serial Interface RS-232 ± 15 Vdc ± 6 Vdc active RS232
Extension Interface -0.3…+6 Vdc 0.5…5 Vdc active TTL
Response time < 250 ms < 300 ms @ 9600 bps
Operational temperature -25…+55
o
C
Transfer rates 2400 – 19200 bps
Stability ± 1 % @ whole temp. range
ANALOGUE SIGNALS
Inputs, 2 pcs 0 – 25 mA 4 – 20 mA resistive 165Ω
Outputs, 2 pcs 0 – 25 mA 4 – 20 mA active
Sample interval cont – 120 min - selectable
Resolution 12 bits
Accuracy <0.4 %
DIGITAL SIGNALS
Inputs, 4 pcs 0 – 35 Vdc 0 – 30 Vdc resistive 4-5 kΩ
Outputs, 4 pcs 0 – 250 Vac / 2 A 0 – 250 Vac / 2A relay contacts
INDICATORS
Indicators Power ON/OFF, digital/analogue IN/OUT, Alarm
OTHER OUTPUTS
Alarm Output 0 – 35 Vdc / 30 mA 24 Vdc / 20 mA active + 30 mA
GENERAL
Casing Stainless steel
Connectors D-15 for SATELLINE radio modem, D-15 for the extension module
Size L x W x H 123 x 85 x 30
Weight 120 g
Mounting Wall plate or DIN-rail
IP IP-20
Modem compatibility SATELLINE-2ASxE, -3AS-series, -EASy, -1870, -1870E, 1915
Connection between I-LINK 100 MODBUS and SATELLINE radio modem
Direction by the
I-LINK 100 MB
Signal
I-LINK 100 MB, D-15
Out
+VB, DTR
1, 14, 15
Out
GND, SGND
7, 8
In
RD
9
Out
TD
11
In
CTS
6
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3 FUNCTIONS
3.1 Operational Voltage, 9 – 30 Vdc
o The supply voltage is connected to the connector 9-30 VDC (-) and (+).
o + OUT is connected to +VDC through an internal fuse. The supply voltage for the
extension units must be taken from this output. It can also be used as the supply voltage
to the analogue input sensors.
3.2 Alarm output, AL OUT
o The AL OUT can be activated by the Safe Mode command. When activated the output
state goes to +VDC. The Alarm is typically activated if the I-LINK 100 MODBUS does
not receive a polling signal in a pre-defined time.
3.3 +OUT
o A voltage output for the extension units. Connected to +VDC through an internal fuse.
3.4 Digital Inputs (I1…I4) and Outputs (O1…O4 )
o Inputs: 4 pcs. Activated with + voltage.
o Outputs: 4 pcs. Open relay contacts. Can be connected to any 0 - 250 Vac / 2A load.
3.5 Analogue inputs (A1 –, A1+, A2-, A2+) and outputs (AO1-,
AO1+, AO2-, AO2+)
o Inputs: 2 pcs. Normal range is 4 - 20 mA. Whole range is 0 – 25 mA showing that the
limits have been exceeded. The input load is resistive 165 Ω.
o Outputs: 2 pcs. Normal range is 4 – 20 mA.
3.6 Indicators
o ON. Power ON/ OFF. Illuminated when +VCD connected.
o O1…O4, AO1, AO2. Showing the status of the output. Illuminated when there is
information on the output. Flashing when range has been exceeded. OFF, when low
state or nothing on the input.
o ALARM. Illuminated, if a fail in transmission has occurred.
o I1…I4, AI1, AI2. Showing the status of the input, illuminated steadily when the input is
in the normal 4 – 20 mA range. Flashing when range has been exceeded. OFF, when
low state or nothing on the input.
3.7 Swithces
o Upper Row, ADDRESS. Modbus address. The maximum number of addresses is 247.
Address 1= 10000000, address 2 = 01000000, address 3 = 11000000 etc.
o Lower Row (1and 2), BAUD kb/s. The baud rate can be selected as follows:
00=2.4, 10=4.8, 01=9.6, 11=19.2.
o Lower Row (3 and 4), PARITY.
00= Even, 01=None, 10=Odd, 11=NOT VALID.
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4 OPERATION
4.1 Preliminary settings
o Connect SATELLINE radio modem to the PLC or to PC's COM-Port.
o Connect the SATELLINE radio modem to the I-LINK 100 MODBUS directly to the RADIO
MODEM -connector or using the interface cable.
o Before connecting the device to a power supply, connect all inputs / outputs that are to
be used.
o Select the SATEL I-LINK 100 MODBUS BAUD-rate 00=2.4, 10=4.8, 01=9.6,
11=19.2 (9600 bps is a default setting, but can be changed to be any of the BAUD-
rates given above) and PARITY 00=Even, 01=None and 10=Odd.
o Check that the radio modem settings are the same as the I-LINK100 MODBUS settings.
o When the settings are made and the antennas are connected to the radio modems, the
supply voltage can be connected.
Updates
The updates are controlled by the Modbus Master that sends messages to the substations or asks
status information from them.
5 MODBUS SERIAL TRANSMISSION MODE
This system supports only the RTU (Remote Terminal Unit) serial transmission mode. Each 8-bit
message byte contains two 4-bit hexadecimal characters. The message is always transmitted in a
continuous stream.
The message is considered finished after the following approximate delays in this system:
5ms @ 19200, 7-9 ms @ = 9600, 12-15ms @ 4800, 15-20ms @ 2400.
In the specification of the Modbus standard the message is considered finished if the delay is
more than 3.5 characters.
Supported baud rates and modes:
Mode
Connection settings
DIP switch description
PARITY switch description
RTU
2400, 8, E, 1
0 0
00
RTU
4800, 8, E, 1
1 0
00
RTU
9600, 8, E, 1
0 1
00
RTU
19200, 8, E, 1
1 1
00
RTU
2400, 8, N, 1
00
01
RTU
4800, 8, N, 1
10
01
RTU
9600, 8, N, 1
01
01
RTU
19200, 8, N, 1
11
01
RTU
2400, 8, O, 1
00
10
RTU
4800, 8, O, 1
10
10
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Mode
Connection settings
DIP switch description
PARITY switch description
RTU
9600, 8, O, 1
01
10
RTU
19200, 8, O, 1
11
10
6 MODBUS ADDRESSES
Valid addresses are from 1-247 (selected by the address dip-switches). Address 0 is reserved for
broadcast address. This device does not response to a broadcast message. All functions are not
supported when using broadcast message.
7 SUPPORTED MODBUS FUNCTIONS
This device supports the following Modbus functions. H= bytes are described as hexadecimal
characters.
CODE
FUNCTION
MEMORY AREA
01H
Read Coil status
0xxxx
02H
Read district inputs
1xxxx
03H
Read Holding Registers
4xxxx
04H
Read Input Registers
3xxxx
05H
Force Single Coil
0xxxx
06H
Force Single Register
4xxxx
0FH
Force Multiple Coils
0xxxx
10H
Set Multiple Registers
4xxxx
11H
Report Slave ID
Hidden
8 I-LINK MAIN DEVICE DATA AREAS
Note! All addresses described in this documentation are written as "PC-mode".
Internally the addresses are 1 less, so in the device the BASE is 0. In this
document the BASE is 1.
8.1 Digital Inputs
These values are read only. Only the function 02H can be used. Read individual Input.
Register
Access
Description
10001
Read only
Digital Input 1
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Register
Access
Description
10002
Read only
Digital Input 2
10003
Read only
Digital input 3
10004
Read only
Digital Input 4
These values are read only. Only the function 04H can be used. Read all Inputs same time.
8.2 Digital Outputs
The usable functions are: 01H, 05H and 0FH.
Register
Access
Description
101
Read/Write
Digital output 1
102
Read/Write
Digital output 2
103
Read/Write
Digital output 3
104
Read/Write
Digital output 4
8.3 Analogue Inputs
294 (Hex) =4mA, CE4 (Hex) =20mA (increment is 0.006059082 mA / step).
The usable function is 04H.
Register
Access
Description
30001
Read only
Analogue Input 1, value between 0-4095 (0 mA ... 24.818 mA)
30002
Read only
Analogue Input 2, value between 0-4095 (0 mA ... 24.818 mA)
Register
Function
Description
30009
Read only
Digital Inputs 1, 2, 3 and 4
30010
Read only
External Unit 1, Digital Inputs 1-6
30011
Read only
External Unit 2, Digital Inputs 1-6
30012
Read only
External Unit 3, Digital Inputs 1-6
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8.4 Analogue outputs
294 (Hex) =4mA, CE4 (Hex) =20mA (increment is 0.006059082mA/step).
The usable functions are 03H and 10H.
Register
Access
Description
42101
Read/Write
Analogue output 1, value between 0-4095 (0 mA ... 24.818 mA)
42102
Read/Write
Analogue output 2, value between 0-4095 (0 mA ... 24.818 mA)
8.5 Report Slave ID.
The report slave id function will response with slave information, SW-version etc.
The information data is following:
Data value
Description
X
Slave ID. Selected slave ID. (1-247)
11H
Function code, always 11H
0DH
Response length, always 0DH
XXXX
Response data. 6 characters, device model, 1 space, 5 characters device
version. For example: I-LINK v1.0B
XX
Device status FFH device ON, 00H device Off.
CRC
CRC for message.
Example (with the SATERM program)
TD (question) to the I-LINK as HEX: \01\11\C0\2C
01 = address of the sub station
11 = function code
C0 and 2C = 2 bytes for CRC (16 bits)
RD (answer) from I-LINK asHEX:
\01\11\0D\49\2D\4C\69\6E\6B\20\76\31\2E\32\20\FF\91\0A
01 = address of the sub station
11 = function code
OD = length of the data, 13 bytes
49\2D\4C\ 69\ 6E\ 6B\ 20\ 76\31\2E\32\20\ FF = data. In this example as
ASCII= I-LINK v1.2[!]
91 and 0A = 2 bytes for CRC (16 bits)
Note: Character [!] at he end of the data describes that there is still one
character for additional version identifier, for example a letter a, b, c....
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8.6 Safe Mode
The Safe Mode supports functions 01H, 0FH, 05H, 03H and 10H.
Register
Access
Description
45001
Read/Write
Safe mode set
0 = No safe mode
1 = Alarm light only. Alarm goes automatically off when valid
message is received.
2 = Alarm light ON. Outputs to safe mode settings. Alarm goes
automatically off when valid message is received.
3 = Like 1, except alarm will not go OFF automatically. Master must
turn it off.
4 = Like 2, except alarm will not go OFF automatically, Master must
turn it OFF.
5101
Read/Write
Safe mode setting for digital output 1
5102
Read/Write
Safe mode setting for digital output 2
5103
Read/Write
Safe mode setting for digital output 3
5104
Read/Write
Safe mode setting for digital output 4
5501
Read/Write
0 = Alarm OFF, 1 = Alarm ON
45201
Read/Write
Safe mode setting for Analogue Output 1
45202
Read/Write
Safe mode setting for Analogue Output 2
45011
Read/Write
High 16 bit off safe mode selected time. (32 bit values hundredth part
of second, 1000 = 10 seconds)
45012
Read/Write
Low 16 bit off safe mode selected time. (32 bit values hundredth part
of second, 1000 = 10 seconds)
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9 EXTERNAL DEVICES
9.1 Digital inputs
The usable function is 02H.
Register
Access
Description
10011
Read only
External device 1 Digital input 1
10012
Read only
External device 1 Digital input 2
10013
Read only
External device 1 Digital input 3
10014
Read only
External device 1 Digital input 4
10015
Read only
External device 1 Digital input 5, Only if device has 6 inputs!
10016
Read only
External device 1 Digital input 6, Only if device has 6 inputs!
10021
Read only
External device 2 Digital input 1
10022
Read only
External device 2 Digital input 2
10023
Read only
External device 2 Digital input 3
10024
Read only
External device 2 Digital input 4
10025
Read only
External device 2 Digital input 5, Only if device has 6 inputs!
10026
Read only
External device 2 Digital input 6, Only if device has 6 inputs!
10031
Read only
External device 3 Digital input 1
10032
Read only
External device 3 Digital input 2
10033
Read only
External device 3 Digital input 3
10034
Read only
External device 3 Digital input 4
10035
Read only
External device 3 Digital input 5, Only if device has 6 inputs!
10036
Read only
External device 3 Digital input 6, Only if device has 6 inputs!
NOTE! If the device has no input (for example trying to read digital input 5, even though external
device has only 4 inputs or external device is not connected), the response will be unknown data
which value is not defined.
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9.2 Digital Outputs
The usable functions are: 01H, 05H and 0FH.
Register
Access
Description
111
Read/Write
Ext. device 1 Digital output 1
112
Read/Write
Ext. device 1 Digital output 2
113
Read/Write
Ext. device 1 Digital output 3
114
Read/Write
Ext. device 1 Digital output 4
115
Read/Write
Ext. device 1 Digital output 5, only if external device has 6 digital
outputs
116
Read/Write
Ext. device 1 Digital output 6, only if external device has 6 digital
outputs
121
Read/Write
Ext. device 2 Digital output 1
122
Read/Write
Ext. device 2 Digital output 2
123
Read/Write
Ext. device 2 Digital output 3
124
Read/Write
Ext. device 2 Digital output 4
125
Read/Write
Ext. device 2 Digital output 5, only if external device has 6 digital
outputs
126
Read/Write
Ext. device 2 Digital output 6, only if external device has 6 digital
outputs
131
Read/Write
Ext. device 3 Digital output 1
132
Read/Write
Ext. device 3 Digital output 2
133
Read/Write
Ext. device 3 Digital output 3
134
Read/Write
Ext. device 3 Digital output 4
135
Read/Write
Ext. device 3 Digital output 5, only if external device has 6 digital
outputs
136
Read/Write
Ext. device 3 Digital output 6, only if external device has 6 digital
outputs
NOTE! If the device has no output (for example trying to write digital output 5, even though
external device has only 4 outputs, or external device is not connected), the response will be
"illegal data address"!
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9.3 Analogue Inputs
The usable function is 04H.
Register
Access
Description
30003
Read only
External device 1, Analogue Input 1, value between 0-4095
30004
Read only
External device 1, Analogue Input 2, value between 0-4095
30005
Read only
External device 2, Analogue Input 1, value between 0-4095
30006
Read only
External device 2, Analogue Input 2, value between 0-4095
30007
Read only
External device 3, Analogue Input 1, value between 0-4095
30008
Read only
External device 3, Analogue Input 2, value between 0-4095
Note! If the external device is not connected or has no analogue ports, the response will be
"illegal data address"!
9.4 Analogue outputs
The usable functions are 03H and 10H.
Register
Access
Description
42103
Read/Write
External device 1, Analogue output 1, value between 0-4095.
42104
Read/Write
External device 1, Analogue output 2, value between 0-4095.
42105
Read/Write
External device 2, Analogue output 1, value between 0-4095.
42106
Read/Write
External device 2, Analogue output 2, value between 0-4095.
42107
Read/Write
External device 3, Analogue output 1, value between 0-4095.
42108
Read/Write
External device 3, Analogue output 2, value between 0-4095.
Note! If the external device is not connected or has no analogue ports, the response will be
"illegal data address"!
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9.5 SAFE MODE, DIGITAL OUPUTS (I-LINK 300)
Register
Access
Description
5111
Read/Write
Safe mode setting for External device 1, digital output 1
5112
Read/Write
Safe mode setting for External device 1, digital output 2
5113
Read/Write
Safe mode setting for External device 1, digital output 3
5114
Read/Write
Safe mode setting for External device 1, digital output 4
5115
Read/Write
Safe mode setting for External device 1, digital output 5
5116
Read/Write
Safe mode setting for External device 1, digital output 6
5121
Read/Write
Safe mode setting for External device 2, digital output 1
5122
Read/Write
Safe mode setting for External device 2, digital output 2
5123
Read/Write
Safe mode setting for External device 2, digital output 3
5124
Read/Write
Safe mode setting for External device 2, digital output 4
5125
Read/Write
Safe mode setting for External device 2, digital output 5
5126
Read/Write
Safe mode setting for External device 2, digital output 6
5131
Read/Write
Safe mode setting for External device 3, digital output 1
5132
Read/Write
Safe mode setting for External device 3, digital output 2
5133
Read/Write
Safe mode setting for External device 3, digital output 3
5134
Read/Write
Safe mode setting for External device 3, digital output 4
5135
Read/Write
Safe mode setting for External device 3, digital output 5
5136
Read/Write
Safe mode setting for External device 3, digital output 6
9.6 SAFE MODE, ANALOGUE DEVICES (I-LINK 200)
Register
Access
Description
45203
Read/Write
Safe mode value for external device 1 analogue 1
45204
Read/Write
Safe mode value for external device 1 analogue 2
45205
Read/Write
Safe mode value for external device 2 analogue 1
45206
Read/Write
Safe mode value for external device 2 analogue 2
45207
Read/Write
Safe mode value for external device 3 analogue 1
45208
Read/Write
Safe mode value for external device 3 analogue 2
Note! When writing the safe mode setting changes, the response is delayed up to 2 seconds,
because all the changes (except ALARM) are stored / written to EEPROM.
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10 FACTORY SETTINGS
The I-LINK 100 MODBUS I/O-converter is shipped with the following default settings (unless
specifically ordered with settings other than those listed below):
FIXED SETTINGS DEFINED AT THE TIME OF ORDER
ADDRESS
0000 0000
BAUD
11 = 19200 bps
11 ACCESSORIES
Interface cables for connecting of I-LINK 100 MODBUS and SATELLINE radio modems.
CRS-2F
PC
SATELLINE-2ASxE , 3AS-series
CRS-18F
PC
SATELLINE-1870, -1870E
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12 EXTENSION MODULES
General
1… 3 extension modules can be connected to SATEL I-LINK 100 MODBUS. The extension
modules must always be connected to I-LINK 100 MODBUS control unit, they do not operate
alone.
I-LINK 200: 4 digital and 2 analogue inputs and outputs
I-LINK 300: 6 digital inputs and outputs
Assembly
The modules are joined together by connecting the EXTENSION and To EXTENSION connectors
as in the picture. The extension modules can be joined in any order. The number of extension
modules is 1…3 pcs (I-LINK 100 MODBUS + 1…3 extension modules).
I-LINK 100 MODBUS
Main module I-LINK 200 Extension I-LINK 300 Extension
4 digital 4 digital
2 analogue I/O-ports 2 analogue I/O-ports 6 digital I/O-ports
Connections
The I/O-ports of the extension modules are connected same way as the main unit’s I/O-ports.
The supply voltage is not linked through the modules, so it must be connected using the green
screw contacts. The supply voltage must be connected directly to the I-LINK 100 MODBUS. The
I-LINK 100 MODBUS is equipped with and internal fuse (self recovery type), therefore the
extension must get the supply voltage from the pin +OUT. If there are many Extension modules
the linking can be done what is the most practical for the wire work (see the picture).
Settings
Extension modules must have different addresses. The address is set by the “Module Address”-
switches. The alternatives are: 00=Module not in operation, 01, 10 and 11. The location is
shown in the picture as “Address”.
SATEL I-LINK 100 MB I/O-converter
User Guide, Version 1.5
19
13 CONNECTION EXAMPLES
Example of one control unit and two sub-stations
