SMC Networks EX121-SDN1, EX120-SDN1, EX124D-U-SDN1, EX122-SDN1 User Manual

OPERATION MANUAL

Doc.No. EX## -OME0015

SI unit

EX120-SDN1

EX121-SDN1

EX122-SDN1

EX124D/U-SDN1

SMC Corporation

SMC CORPORATION

Contents

Doc.No.EX

1.Safety instructions ------------------------------------------------------ P3

2.Specifications

2-1.General specifications ------------------------------------------------------ P4

2-2.Electrical and network specifications ------------------------------------------------------ P4

2-3.Applicable solenoid valve series ------------------------------------------------------ P5

3.Wiring and setting

3-1.Connection type ------------------------------------------------------ P5

3-2.Address setting ------------------------------------------------------ P8

4.LED indicator and Physical dimensions

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4-1.LED indication ------------------------------------------------------ P9

4-2.Physical dimensions ------------------------------------------------------ P9

5.EDS(Electronic Data Sheet) File ------------------------------------------------------ P12

6.Trouble Shooting ------------------------------------------------------ P13

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SMC CORPORATION

1.Safety instructions

These safety instructions are intended to prevent a hazardous situation and/or equipment damage. These instructions indicate
the level of potential hazard by label of "CAUTION" , "WARNING".
To ensure safety, be sure to observe ISO, JIS and other safety practices.

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CAUTION: Operator error could result in injury or equipment damage.

WARNING: Operator error could result in serious injury or loss of life.

CAUTION

Thoroughly read this manual and operate the product within the specified range. Follow the instructions.
Do not drop or impart any impact to the product.
Use within specified voltage range. Use outside of specified voltage will cause malfunction, damage of unit, electric shock, and
fire.
Do not touch the terminal or internal circuit board while they are energized. It may cause malfunction, damage to unit, and
electric shock.
Use within operating ambient temperature. Do not use where temperature can rapidly change even thought it is within the
specifications.
Foreign objects should be prevented from entering the product. Contamination by foreign objects, such as wire chips will cause
fire, breakage, and malfunction.
Use within the operating environment of the protection structure. In case of IP20, avoid use in the place where water and oil
scatter. To realize IP65, install manifold properly and give some prevention against splash of liguid to electrical entry.
Carry out periodical checks to confirm correct operation. Safety may not be maintained by unintentional malfunction or incorrect
operation. Design must consider the space necessary for maintenance.
As the contents of this manual is sometimes changed without the previous announcement, understand them beforehand,
please.
SI unit is not explosion proof. Operation in explosive enviromment may cause explosion accident.

WARNING

The product specified here is designed to be used in standard factory automation equipment. Do not use in machinery and/or
equipment where operators may be injured, and malfunction or failure may cause loss of life.
Do not disassemble to repair or modify the product.

Connection

CAUTION

Power of the product and all other equipments should be turned off while wiring.
Tighten the wiring with connector and tarminal screw completely. Short circuit, fire, and malfunction will be caused if connector
and tarminal screw are not tightened enough.
Avoid incorrect wiring. It may damage the product and/or other equipments.
Ensure that the FG terminal is correctly grounded.
Power with correct capacity should be prepared by considering the in-rush current when starting.
Influence of noise should be avoided for the wiring. Wiring should be separated from power cables and high voltage cables.
Ensure that the power is within the specified voltage range.
Ensure that the cable is capable of supporting the solenoid valve and SI unit in terms of rating.

Applicable solenoid valves

CAUTION

SMC offers no guarantee against malfunction and damage of unit when valves not described to “2-3.Applicable solenoid
valve series” and loads which is not valve are connected.

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2. Specifications

2-1. General specifications

Item Specifications
Model EX120

-SDN1

Operating ambient temp. 0 to +55(with 8 points of valve ON)

0 to +50℃(with 16 points of valve ON)

Operating ambient humidity 35 to 85%RH(No dew condensation)
Storage ambient temp.

-20 to +60℃

Vibration proof 50m/s2 (comply with JIS C 0911)
Impact proof 100m/s2 (comply with JIS C 0912)
Noise immunity

Normal mode ±1500 V Pulse 1µs
Common mode ±1500 V Pulse 1µs
Radiation 1000 V ±Pulse 1µs

Withstand voltage AC1000V for 1 min. between FG and external

terminal package.

Insulation resistance DC500V, 2MΩ between FG and external terminal

package.
Operating environment No corrosive gas and no dust
Weight 110g

or less

Protection class IP20 IP65

EX121

-SDN1

140g

or less

EX122

-SDN1

130g
or less

EX124D

-SDN1

EX124U

-SDN1

240g

or less

SMC CORPORATION

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2-2. Electrical and network specifications

Item Specifications
Applicable system DeviceNet Release 2.0
Power supply voltage for communication DC11V to DC25V

Power supply voltage for solenoid valve DC24V +10% -5%

Communication and

current

Internal power supply
Power supply for

Solenoid valve
Solenoid valve
Connection

Output style NPN output (Open collector)

Connected load DC24V, Solenoid valve with lamp-surge voltage
spec.

Insulation type Opt-coupler insulation type
Residual voltage 0.4V DC or less

Applicable DeviceNet

MAC ID setting range 0 to 63 (Set by Dip switch)
Baud Rate (Transmission speed) 500kbps, 250kbps, 125kbps (Set by Dip switch)
Slave (branch station) type Group 2 only server
Connection type T branch type, Multi drop type
Device type 16
Product code 288
Revision Referred to EDS file.
Vendor ID 7

Network connection spec.

Corresponding message Polled command (I/O message ), Explicit message

(supplied by communication connector)

90mA or less (DC24V)Consumption

1.5A or less (DC24V)

protection circuit of 2.1W or less.
(made by SMC)

VolumeⅠ- Release 1.2
VolumeⅡ- Release 1.1

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SI unit I/O data (Receiving and sending data of polled command)

Item Output(Poll request) Input(Poll response)

Occupied byte 2 byte

(Solenoid valve output)

Address +0 Output No. 0 to 7Sending/

receiving data

Address +1

Output No. 8 to 15

*) Mapping method of sending / receiving data is different by PLC.

For further information, refer to the manual for PLC master (scanner)

Bit of each output data and corresponding solenoid valve no.

Offset MSB LSB

0 No.7 No.6 No.5 No.4 No.3 No.2 No.1 No.0
1 No.15 No.14 No.13 No.12 No.11 No.10 No.9 No.8

2-3. Applicable solenoid valve series

SI unit Valve series
EX120 VQ1000, VQ2000
EX121 VQ1000, VQ2000, SX3000, SX5000
EX122 SY3000, SY5000
EX124U/D VQ2000, VQ4000, VQ5000

2 byte

SMC CORPORATION

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3. Wiring and Setting

3-1.Connection type
DeviceNet can be connected by T branch, Multi branch, Branch line branch and Multi drop. Total
extension length of trunk and Branch line is different for different Baud rate and thickness of
communication cable.

Main line

Terminal resistance

Multi branch

Branch

line

Node

Length of cable

Node

Node

NodeNode

Branch

line

T branch

Node

Branch

line

Terminal resistance

Branch line

branch

Node

Node

Node

Communication

distance

Thick cable

Baud rate

500 kbps 100m or less 39m or less
250 kbps 250m or less 78m or less

Total length of

trunk

branch line

6m or less

125 kbps 500m or less

Thin cable Common 100m or less

Terminal resistance 121 ohm (1/2W)

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Length of

――――――

Total length of

branch line

156m or less

Cable specification

Item

Conductor

cross section

Colors Blue, W hite Red, Black Blue, White Red, Black

Impedance

Propagation

delay

Attenuation

rate

Conductor
resistance

Thick cable Thin cable

Communication

Signal

0.82 mm

120

2

Ω±

10%(1MHz)

Power upply

1.65 mm

――

Communication

2

10%(1MHz)

Signal

0.20 mm

Ω±

120

2

1.36ns / ft(max) ―― 1.36ns / ft(max)

500k：0.25dB / ft
125k：0.13dB / ft

1.00M：0.40dB / ft

6.9Ω /

1000ft(max)

――

3.6Ω /
1000ft

(max)

500k：0.50dB / ft
125k：0.29dB / ft

1.00M：0.70dB / ft

28Ω /

1000ft(max)

SMC CORPORATION

Doc.No.EX

Power supply

0.33 mm

2

――

――

――

17.5Ω /
1000ft(max)

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CAUTION

For Multi drop connection, prepare plug connector for T branch separately.
(Example, TMSTBP 2.5...- STF -5.08 made by Phoenix Contact Corp.)
Use DeviceNet special cable for communication cable.
Be sure to connect DeviceNet special terminal resistor with both ends of trunk.

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Wiring of cable for solenoid valve power supply and communication

Communication connector for DeviceNet
Terminal Wire color Connected to
V- Black (-) side of power supply cable
CANL Blue Low side of communication cable
FG - Ground / Shield
CANH White High side of communication cable
V+ Red (+) side of power supply cable

SMC CORPORATION

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Power supply connector for solenoid valve
Terminal Wire color Connected to
24V - (+) side of solenoid valve source supply
0V - (-) side of Solenoid valve source supply

CAUTION

• Before wiring, be sure to turn power supply off.

• Screw for connectors is M3. Tighten them properly by torque of 0.5 to 0.6 [N·m].

• SI unit isn’t available for monitoring of power supply for solenoid valve.

• Do not put cable specified by DeviceNet with/near high voltage line or strong
electric line such as driving line.

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3-2. Address setting

ON

Before setting of address by DIP switch, turn power supply for communication cable in SI
unit “OFF”.
Setting (binary) of following items is available by DIP switch installed to cover.

1) Node address (00 to 63)

2) Communication speed (125kbps, 250kbps, 500kbps)

<Setting of node address>

Node

address

SW1 SW2 SW3 SW4 SW5 SW6

12481632
#0 000000
#1 100000
#2 010000

:
:

:
#62 011111
#63 111111

SMC CORPORATION

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<Setting of communication speed>

Setting Max. transmission distance (m)

SW7 SW8

0 0 125 500 156
1 0 250 250 78
0 1 500 125
1 1 Not used Not used

Communication

speed (kbps)

CAUTION

• When shipped, node address of 63 and communication speed of 125kbps are set in
advance.

• When communication error occurs, output condition is cleared.

Length of trunk
Thick
cable

Think
cable

Length

branch

line

100 6

of

Total length

of

branch line

39

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4.LED indicator and Physical dimensions

1

1
0

8

0

32

0
0
0

1
1

STATION
ADDRESS

TRANSMIT
SPEED

125K
250K
500K

0
0
1
1

SWITCH

SETTINGS

ON

SERIAL UNIT

SMC

28.8

10.2

4-1 LED indication

SMC CORPORATION

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EX120-SDN1
EX121-SDN1

EX124D-SDN1
EX124U-SDN1

EX122-SDN1

Indication Contents

PWR Green Lights up when power for DeviceNet line is supplied.

Lights off SI unit isn’t on line or power supply for communication

line isn’t turned on.

MOD / NET

Green
flashing
Green
lights up
Red
flashing
Red
lights up

Waiting for connection (ON line)

Connection completed (ON line)

Connection time out (Minor communication error)

MAC ID duplication error or BUS OFF error
(Major communication error)

4-2 Physical dimensions

SI unit (EX120-SDN1)

SMC

SERIAL UNIT

SWITCH

SETTINGS

STATION
ADDRESS

TRANSMIT
SPEED

ON

1

1

0

2233445566778

11224488161632

0

00000000000
1100110000000
2211000000000

626211001111111

636311111111111
125K
250K
500K

000
110
001
111

10.2

28.8

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SI unit (EX121-SDN1)

1

1
0

8

0

32

0
0
0

1
1

STATION
ADDRESS

TRANSMIT
SPEED

125K
250K
500K

0
0
1
1

SWITCH

SETTINGS

ON

Flat cable length about 70mm

SERIAL UNIT

SMC

64

60.8

66.1

28.8

2

10.2

5.4

SMC

SERIAL UNIT

5.4

Flat cable length about 70mm

SMC CORPORATION

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SWITCH

SETTINGS

STATION
ADDRESS

TRANSMIT
SPEED

66.1

60.8

64

SI unit (EX122-SDN1)

ON

1

1

0

2233445566778

11224488161632

0

00000000000
1100110000000
2211000000000

626211001111111

636311111111111
125K
250K
500K

000
110
001
111

10.2

28.8

2

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SI unit (EX124D-SDN1)
SI unit (EX124U-SDN1)

SMC CORPORATION

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4-G(PF)1/2

19.8

19

67

(72.5)

114

5.5

53.8

11.6

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5.EDS (Electronic Data Sheet) File

SMC CORPORATION

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The EDS File is a file which described ID information on SI unit and important information in the
operation.
The DeviceNet controller or scanner automatically recognizes the SI unit by referring to the EDS File.
* Please refer to the undermentioned list when DeviceNet controller or the scanner dose not
automatically recognize the EDS File.

$ Electronic Data Sheet File for
$ SMC EX120-SDN1 Serial Interface Unit
[File]

DescText = "SMC EX120-SDN1 EDS File";
CreateDate = 05-20-1999; $ created
CreateTime = 10:30:00;
Revision = 1.1; $ Revision of EDS

[Device]

VendCode = 7;
VendName = "SMC Corp.";
ProdType = 16;
ProdTypeStr = "General Motion Controller";
ProdCode = 288;
MajRev = 2; $ Device Major Revision
MinRev = 7; $ Device Minor Revision
ProdName = "Valve Manifold SIU";
Catalog = "EX120-SDN1";

[IO_Info]

Default = 0x0001; $ Poll(Bit 0)
PollInfo = 0x0001 , 1 , 1; $ Prod. Cnxn=1

$ Cons. Cnxn=1
Input1 = 2, $ 2 byte
0, $ All bits are significant
0x0001, $ Poll Only Connection
"Solenoid Status", $ Name String
6, $ Path Size
"20 04 24 05 30 03", $ Assy Obj Inst 5 Attr 3
""; $ Help String
Output1 = 2, $ 2 byte
0, $ All bits are significant
0x0001, $ Poll Only Connection
"Solenoid Output", $ Name String
6, $ Path Size
"20 04 24 23 30 03", $ Assy Obj Inst 23 Attr 3
""; $ Help String

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6. Trouble Shooting

MOD/NET LED Cause & Countermeasure
Lights off PWR LED lights off

<Countermeasure>
Confirm that power for SI unit circuit is supplied.
Confirm correct wiring.
If above countermeasures do not improve status, please exchange SI unit.

PWR LED lights up
<Countermeasure>
Confirm that baud rate is set correctly.
If MOD/NET LED lights off in spite of baud rate is set correctly, change SI unit.

Green flashing Connection waiting

Shows communication waiting status between SI unit and master.
<Countermeasure>
Confirm master operate correctly.
If using scan list, ensure slave is recorded to scan list correctly.

Red flashing Communication wire disconnected error

<Countermeasure>
Confirm communication wire is not disconnected.
<Remark>
Red flashing if master power source is turned off during communication.

Red lights up Node address overlapping error

<Countermeasure>
Confirm there is no overlapping on the node address.

BUS OFF error
Detects communication error.
<Countermeasure>
Case 1
Communication error due to noise.
Confirm there is no component or high voltage cable that generate noise
around communication wire.
Make some distances between communication wire and noise source.

Case2
Communication cable problem.
Confirm terminal resistance (121ohm) connects to the both ends of
communication wire that is main wire of communication wire.

If red MOD/NET LED is still lights up in spite of above countermeasures,
change SI unit.

SMC CORPORATION

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CAUTION

When red MOD/NET LED is lit, even if cause is solved, SI unit do not do auto-recovery. In

this case, please reset the power to SI unit circuit (Communication/Internal power supply).

SI unit isn’t available for monitoring of power supply for solved valve.

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