Mitsubishi Electric SWL31-ETMC User manual

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2.4 GHz Band Radio Unit
SWL31-ETMC
SWL31-R4ML
User's Manual
(Detailed Version)
Thank you for purchasing our 2.4 GHz Radio Unit (hereinafter called "Radio Unit").
For using the Radio Unit correctly and safely, at first please read this manual carefully before
using it to understand sufficiently its functions and performance.
Cautions
1. Do not copy this user's manual without permission.
2. Please note that descriptions in this manual may be changed without prior notification.

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Table of Contents
1. SAFETY PRECAUTIONS......................................................................................................................... 3
2. CHECKING PACKAGE............................................................................................................................. 6
3. NAME/FUNCTION OF EACH SECTION.................................................................................................. 7
4. RADIO UNIT INSTALLATION ENVIRONMENT....................................................................................... 9
5. SYSTEM CONFIGURATION.................................................................................................................. 10
6. INSTALLATION PROCEDURE............................................................................................................... 12
6-1. Installation........................................................................................................................................ 13
6-2. Wiring............................................................................................................................................... 14
7. CHECKING RADIO COMMUNICATIONS.............................................................................................. 15
8. ABOUT SETTING UTILITY..................................................................................................................... 16
9. BUTTON SETTING PARAMETER LIST................................................................................................. 17
10. BUTTON OPERATION METHOD........................................................................................................... 23
11. ERROR CODE LIST............................................................................................................................... 27
12. SPECIFICATIONS .................................................................................................................................. 29
12-1. General Specifications..................................................................................................................... 29
12-2. Communication Specifications ........................................................................................................ 30
12-3. Mesh Communication...................................................................................................................... 31
12-4. The Maximum Number of Relay Units ............................................................................................ 32
12-5. Slave Station Interface Specifications............................................................................................. 32
12-6. Input Specifications.......................................................................................................................... 33
12-7. Output Specifications....................................................................................................................... 34
12-8. Pulse Count Specifications.............................................................................................................. 35
12-9. Terminal Block Specifications.......................................................................................................... 36
12-10.Appearance Specifications.............................................................................................................. 37
13. AUTHENTICATION STANDARDS.......................................................................................................... 38
14. FUNCTIONS REALIZED WITH SYSTEMAREA................................................................................... 39
15. ADDRESS ASSIGNMENT CHANGE WHEN EXTENSION UNITADDED TO RADIO SLAVE STATION .............. 41

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1. SAFETY PRECAUTIONS
(Please be sure to read them before using the product.)
Please carefully read this manual before using the product and pay full attention to safety in order to
handle the product correctly.
Precautions given in this manual relate only to this product.
In this "1. SAFETY PRECAUTIONS," the safety precautions are ranked as "WARNING" and
"CAUTION."
Note that the CAUTION level may lead to serious consequences according to the circumstances.
Be sure to follow the instructions of both levels since they are important to personal safety.
Please be sure to pass this manual on to the end users.
In addition, please keep it in a safe place so that you can read it when needed.
[WIRING PRECAUTIONS]
●Be sure to block the power supply externally for all phases before wiring, otherwise an electric
shock or product damage may occur.
●Check the rated voltage and terminal layout of the product and correctly execute wiring for the
terminal block. Awrong rated power supply or wrong wiring may cause fires or breakdowns.
●Be careful not to let foreign matter such as sawdust or wire chips get inside the product. Fires,
breakdowns and malfunctions may occur.
WARNING
Indicates that incorrect handling may cause hazardous
conditions, resulting in death or severe injury.
CAUTION
Indicates that incorrect handling may cause hazardous
conditions, resulting in moderate or minor injury or only
material damage.
CAUTION
WARNING

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[DESIGN PRECAUTIONS]
●An external safety circuit shall be installed to this product so that the whole system operates at
the safety side, even if an abnormality of an external power supply has an abnormality, or a
breakdown of this product. Erroneous output and malfunctions may cause an accident.
(1) Interlock circuits for conflicting operations such as forward/backward rotation or for
machine damage prevention such as upper/lower limits shall be configured outside of the
product.
(2) If this product detects a communication abnormality, it will stop operation and set all
outputs to OFF/HOLD. In addition, if an input/output control section has an abnormality
which cannot be detected by the microcomputer within this product, all outputs may be
turned on. In such case, an external fail-safe circuit or mechanism shall be installed for
this product so that the machine operates at the safe side.
(3) Outputs may be set to on or off at all times depending on a breakdown of an output circuit
transistor etc. For output signals which may cause serious accidents, an external
monitoring circuit shall be installed.
●A fuse or other safety circuits shall be installed externally since smoke/fires may occur if a load
current which is higher than the rated current or an over current by a load short circuit flows
continuously for a long time.
●A circuit of the external power supply for input/output circuits shall be configured so that the
power supply is turned on after the power supply for this product is turned on. If the external
power supply is turned on first, erroneous output or malfunctions may cause an accident.
●Control wires and power supply cables shall not be bundled with the main circuit and power
wires or be laid close to them. Separate them by 100 mm (3.9 in) or more. Noise may cause
malfunction.
●An output circuit with a margin in the rated current shall be selected, because large currents
(ten times greater than normal ones) may flow when the output is set to ON from OFF on
control of lamp load or others at the output circuit.
[INSTALLATION PRECAUTIONS]
●This product shall be used with the environmental specifications described in this user's
manual. If it used in an environment outside of the environmental specification range, electric
shocks, fires, malfunctions, product damage, or degradation may occur.
●Do not directly touch the conductive section of this product. Malfunctions and breakdowns may
occur.
CAUTION
WARNING
CAUTION

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[STARTING/MAINTENANCE PRECAUTIONS]
●Do not touch terminals while the product is energized. An electric shock may occur.
●Be sure to block power supply externally for all phases before cleaning.
If all phases are not blocked, an electric shock may occur.
Tightening screws too much may damage the product causing it to fall.
●Do not disassemble or modify the product. Breakdowns, malfunctions, injuries, or fires may
occur. Also, that is prohibited by the Radio Law.
[DISPOSAL PRECAUTIONS]
●When this product is disposed of, it shall be handled as industrial waste.
經型式認證合格之低功率射頻電機，非經許可，公司、商號或使用者均不得擅自變更頻率、
加大功率或變更原設計之特性及功能。
低功率射頻電機之使用不得影響飛航安全及干擾合法通信；經發現有干擾現象時，應立即停
用，並改善至無干擾時方得繼續使用。
前項合法通信，指依電信法規定作業之無線電通信。低功率射頻電機須忍受合法通信或工業、
科學及醫療用電波輻射性電機設備之干擾。
WARNING
CAUTION
CAUTION
警語

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2. CHECKING PACKAGE
Open the package and check the package to see if the set you have ordered is included.
Set model name
(1) SWL31-ETMC
(2) SWL31-R4ML
No.
Item name
Set Contents
(1)
(2)
1
2.4 GHz Band Radio Unit SWL31-ETMC (Master Station)
1
―
2
2.4 GHz Band Radio Unit SWL31-R4ML (Slave Station)
―
1
3
DIN Rail Mounting Attachment DRT-1
1
1
4
Attachment Fixing Screws (Pan Tapping Screws M3 x 8)
1
1
5
User's Manual (Hardware Version)
1
1
※Antennas must be purchased separately, refer to 3.Antenna (sold separately)
3. Antenna (sold separately)
(1) SWL31-ANP
(2) SWL31-ANT
No.
Item name
1
Pencil Type Antenna
SWL31-ANP
2
Flange Head TypeAntenna (Cord 2 m (78.7 in)) ※
SWL31-ANT
※If you buy Flange Head TypeAntenna, you will get Flange Head TypeAntenna Fixture Set

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4. NAME/FUNCTION OF EACH SECTION
●SWL31-ETMC (Master Station)
Category
Name
Explanation
Antenna
A pencil type or flange head type (antenna)
Radio Monitor
PW
Lighting-on: Power on, normal communications
Blinking: Power on, error occurred, parameter setting
mode activated
Lighting-off: Power off
TX
Lighting-on while radio data are transmitted
RX
Lighting-on while radio data are received
Status Monitor
(Seven Segment)
Various displays with operation modes
•In Normal Mode
Normal communication:The channel number is displayed.
Error occurred: The error number is displayed.
•In Parameter Setting Mode: The parameter number is
displayed.
•In Radio Wave Intensity Mode: The radio wave intensity
level is displayed.
Ethernet
Monitor
100M
Lighting-on during 100BASE-TX communications
SD
Lighting-on during data transmission
RD
Lighting-on during data reception
Operation
Buttons
MODE/BACK
Operation mode switching and hierarchy transfer in
Parameter Setting Mode
▼ (Down key)
Parameter no./value increase/decrease in Parameter
Setting Mode
▲ (Up key)
SET
Hierarchy transfer in Parameter Setting Mode
Terminal Block
Refer to Section 13-9 Terminal Block Specification.
Stopper
Press the stopper to insert an electric wire and leave it to
fix the wire.
Ethernet Connector
A PLC is connected with an Ethernet cable for
communications.
USB Connector
A PC is connected to the USB connector for using the
Setting Utility (SWL31-UT1).
SWL31-ETMC
Antenna
Operation Buttons
Status Monitor
Radio Monitor
Ethernet Monitor
Terminal Block
USB Connector
Ethernet Connector
Stopper

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●SWL31-R4ML (Slave Station and Relay Station)
Category
Name
Explanation
Antenna
A pencil type or flange head type (antenna)
Radio Monitor
PW
Lighting-on: Power on, normal communications
Blinking: Power on, error occurred, parameter setting
mode activated
Lighting-off: Power off
TX
Lighting-on while radio data are transmitted
RX
Blinking while radio link is connected
Status Monitor
(Seven Segment)
Various displays with operation modes
•In Normal Mode
Normal communication: The channel number is
displayed.
Error occurred: The error number is displayed.
•In Parameter Setting Mode: The parameter number is
displayed.
•In Radio Wave Intensity Mode: The radio wave intensity
level is displayed.
I/O Monitor
X0, X1
Lighting-on when X0 or X1 signal is input to the terminal
block
Y0, Y1
Lighting-on when Y0 or Y1 signal is output from the
terminal block
Operation
Buttons
MODE/BACK
Operation mode switching and hierarchy transfer in
Parameter Setting Mode
▼ (Down key)
Parameter no./value increase/decrease in Parameter
Setting Mode
▲ (Up key)
SET
Hierarchy transfer in Parameter Setting Mode
Terminal Block
Refer to Section 13-9 Terminal Block Specification.
Stopper
Press the stopper to insert an electric wire and leave it to
fix the wire.
USB Connector
A PC is connected to the USB connector for using the
Setting Utility (SWL31-UT1).
SWL31-R4ML
Antenna
Operation Buttons
Status Monitor
Radio Monitor
I/O Monitor
Terminal Block
USB Connector
Stopper

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5. RADIO UNIT INSTALLATION ENVIRONMENT
●Installation Environment
Install the Radio Unit avoiding the following environments.
•A place with direct sun light
•A place with extremely high humidity
•A place with corrosive or inflammable gases
•A place with intense electric field or ferromagnetic field occurrence
●Request on Installing Radio Unit
The Radio Unit transmits/receives data using radio waves. For using it with stable
communication status, install it paying attention on the following.
•Install the antennas of the units which communicate parallel to each other as much as
possible.
•Place metallic plates and concrete walls away from the antenna as far as possible (0.3 m
(11.8 in) at least).
•Install the antenna at a place 1.5 m (59.1 in) or higher from the floor to prevent impact from
moving objects (including human bodies).
•When communications are checked with a temporal installation, the unit shall be installed
on a control board or others which the unit is actually to be installed because
communications are affected by the environment near the fixing part such as metal and
concrete. (If the Radio Unit is installed in a metallic control board, install the flange head
antenna outside of the board.)
•The Radio Unit and antenna are indoor types.
If they are used outdoors, place them avoiding water (rain, fog, snow, etc.) and direct sun light
in a nonmetallic container such as a plastic case for outdoors.
Impact of water on the communication distance is assumed for electric wave characteristics.
In addition, if the plastic case has a metallic plate embedded, it shall not be used because it will
be an obstruction and significantly affect the communication distance.

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6. SYSTEM CONFIGURATION
The system configuration example for the SWL31 Radio Series is described below.
The I/O addresses of the slave stations and extension units are closely allocated in the order of
smaller registered station numbers.
The bit I/O leading addresses' RXm and RYm depend on the parameters of the master station.
The word I/O leading addresses' RWr and RWw depend on the parameters of the master station.
* Refer to the I/O Correspondence Table in the next page.
* For the details of the parameter setting, refer to "2.4 GHz Band Radio Unit Setting Utility
(SWL31-UT1) User's Manual."
Refer to the figure below for the maximum bit points, word points, number of slave stations registered,
and number of extension units registered.
SWLEX-X16
Ethernet
(100BaseTX)
MC Protocol
(3E Frame,
1E Frame)
[Master Station]
<Maximum bit number>
Input: 2048 points Output: 2048 points
<Maximum word number>
Input: 256 points Output: 256 points
<Maximum slave stations (relay stations
included)>
Registration number: 40 units
2-point input
2-point output
16-point input
16-point output
[SWLEX-XY16 Station No. 1]
16-point input
Extension Unit Link (RS485)
[Slave Station 1]
[Slave Station 2]
(Pulse count effective)
[Slave Station 3]
2-point input
2-point output
2.4 GHz Band
Radio
Communication
16-bit occupation
16-bit/2-word occupation
16-bit occupation
16-bit occupation
16-bit occupation
16-bit occupation
Extension Unit Link (RS485)
PLC
Address
RXm0 to F
RYm0 to F
Address
RX(m+1)0 to F
RY(m+1)0 to F
Address
RX(m+2)0 to F
RY(m+2)0 to F
Address
RX(m+4)0 to F
RY(m+4)0 to F
[SWLEX-XY16 Station No. 2]
[SWLEX-X16 Station No. 1]
Address
RX(m+5)0 to F
Address
RX(m+3)0 to F
RY(m+3)0 to F
SWL31-ETMC
SWL31-R4ML
SWL31-R4ML
SWL31-R4ML
[SWLEX-AD4 Station No. 3]
AD 4-point
input
Address
RWr+0 to 3
RWw+0 to 3
Pulse Count
1ch input RWr+4 to 5
RWw+4 to 5
[SWLEX-AD4 Station No. 2]
AD 4-point
input
Address
RWr+6 to 9
RWw+6 to 9
Four word occupation
Four word occupation
Slave Station 1
Slave Station 2
Slave Station 3
16-point input
16-point output
2-point
output
<Maximum bit number>
Input: 144 points Output: 144 points
<Maximum word number>
Input: 36 points Output: 36 points
<Maximum extension units>
Registration number: 8 units