SMC Networks EX250-SAS7 User manual

Before Use
Fieldbus device
EX250-SAS3/EX250-SAS5
EX250-SAS7/EX250-SAS9
NOTE
•When conformity to UL is necessary the SI unit must be used with a UL1310
Class 2 power supply.
•The product is a UL approved product only if it has a mark on the body.
Safety Instructions
Do not operate the product outside of the specifications.
Do not use for flammable or harmful fluids.
Fire, malfunction, or damage to the product can result.
Verify the specifications before use.
Do not disassemble, modify (including changing the printed circuit board) or repair.
An injury or failure can result.
Do not operate in an atmosphere containing flammable or explosive gases.
Fire or an explosion can result.
This product is not designed to be explosion proof.
If using the product in an interlocking circuit:
•Provide a double interlocking system, for example a mechanical system.
•Check the product regularly for proper operation.
Otherwise malfunction can result, causing an accident.
The following instructions must be followed during maintenance:
•Turn off the power supply.
•Stop the air supply, exhaust the residual pressure and verify that the air is released before performing
maintenance.
Otherwise an injury can result.
Provide grounding to assure the noise resistance of the product.
Individual grounding should be provided close to the product with a short cable.
Safety Instructions
These safety instructions are intended to prevent hazardous situations and/or
equipment damage.
These instructions indicate the level of potential hazard with the labels of
"Caution", " Warning" or "Danger". They are all important notes for safety and
must be followed in addition to International standards (ISO/IEC) and other safety
regulations.
Warning
Caution
After maintenance is complete, perform appropriate functional inspections.
Stop operation if the equipment does not function properly.
Safety cannot be assured in the case of unexpected malfunction.
CAUTION indicates a hazard with a low level of risk which, if
not avoided, could result in minor or moderate injury.
Caution:
Warning:
Danger:
WA NING indicates a hazard with a medium level of risk
which, if not avoided, could result in death or serious injury.
DANGE indicates a hazard with a high level of risk which, if
not avoided, will result in death or serious injury.
Operator
This operation manual is intended for those who have knowledge of machinery
using pneumatic equipment, and have sufficient knowledge of assembly,
operation and maintenace of such equipment. Only those persons are allowed
to perform assembly, operation and maintenance.
ead and understand this operation manual carefully before assembling,
operating or providing maintenance to the product.
Thank you for purchasing an SMC EX250-SAS3/EX250-SAS5/EX250-SAS7/
EX250-SAS9 Fieldbus device.
Please read this manual carefully before operating the product and make sure you
understand its capabilities and limitations. Please keep this manual handy for
future reference.
To obtain the operation manual about this product and
control unit, please refer to the SMC website
(U L http://www.smcworld.com) or contact SMC directly.
Summary of Product elements
ADDR1ADDR2
ADDRESSSETTING
PWRAUXIN
-ERR
COM
-ERR
HOLD
CLEAR
SW
1
7
5
6
4
2
Mounting and Installation
Installation
The SI unit does not have mounting holes, so it cannot be installed alone. Make sure to
connect the valve manifold.
efer to the valve catalogue for valve manifold dimensions.
M3 hexagon screw
Tightening torque: 0.6 Nm
Tie-rod
Tightening torque: 0.6 Nm
End plate SI unit Valve manifold
Exchange of SI unit
• emove screws from End Plate and release connection of each unit.
• eplace old SI unit with new one. (Tie-rod does not need to be removed.)
•Connect Input Block and End Plate and tighten removed screws by specified
tightening torque. (0.6 Nm)
Assembly and disconnection of unit
Addition of Input Block
• emove screws from End Plate.
•Mount attached tie-rod.
•Connect additional Input Block.
•Connect End Plate and tighten removed screws by specified tightening torque.
(0.6 Nm)
Caution for maintenance
(1) Be sure to turn-off all power supplies.
(2) Be sure that there is no foreign object in any of units.
(3) Be sure that gasket is lined properly.
(4) Be sure that tightening torque is according to specification.
If these items are not kept, it may lead to the breakage of substrate or intrusion of
liquid or dust into the units.
Connecting cables
Select the appropriate cables to mate with the connectors mounted on the SI unit.
Troubleshooting
Technical documentation giving detailed troubleshooting information can be found on the
SMC website (U L http://www.smcworld.com).
Specifications
Connected load: 24 VDC Solenoid valve with surge voltage suppressor of 1.5 W or less
(manufactured by SMC)
Current consumption of power supply for SI unit operation: 0.1 A max.
Operating ambient temp.: +5 to +45 oC
Storage ambient temp.: -20 to +60 oC
∗1: Input terminal are not isolated from Power source.
∗2: Do not connect outside Power source to Input and Output terminals.
Technical documentation giving detailed specification information can be found on the SMC
website (U L http://www.smcworld.com).
Outline Dimensions
Technical documentation giving detailed outline dimensions information can be found on
the SMC website (U L http://www.smcworld.com).
Assembly and disassembly of the SI unit
Note: Specifications are subject to change without prior notice and any obligation on the part of the manufacturer.
© 2012-2017 SMC Corporation All ights eserved.
Akihabara UDX 15F, 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021, JAPAN
Phone: [phone] Fax: [phone]
URL http://www.smcworld.com
Communication connector
Element Description
Connect with AS-Interface communication line.
Power supply connector for
output equipment ∗1Supplies power to the solenoid valve and Output block.
Output block connector Connects the solenoid valve, Output block and etc.
Display window LED display shows the SI unit status.
1
No.
2
4
5
∗1: Available only for EX250-SAS3/EX250-SAS5.
Switch protective cover Sets the address and baud rate etc. with the switch inside.
Grounding terminal (FE) ∗1Used for grounding.
6
7
Input block connector Connects the Input block. 3
1
24
3
•Power supply connector for output equipment
1
24
3
24 V
Description Function
Power supply for output equipment (+)
N.C. Unused
0VPower supply for output equipment ( - )
1
No.
2
3
N.C. Unused4
The M12 cable, AS-i standard cable and connector for T-branch are not supplied by SMC.
Contact each manufacturer for the catalogue details etc.
Wire the cable for AS-Interface line so that the total voltage drop is 3 V or less.
AS - i +
Description Function
AS−Interface line (+)
(0 V) Power supply for output equipment ( - )
AS - i - AS−Interface line ( - )
1
No.
2
3
(24 V) Power supply for output equipment (+) 4
•Communication connector
E250-SAS3/E 250-SAS5
∗: Connected inside the SI unit.
Power supply connector
for output equipment
Communication connector
Ground terminal
•Connection example
M12 cable
Recommendation conductor cross-section: 1.5mm2
AS-i standard cable
(BLACK CABLE)
Connector for T-branch
ASI FK M12 Hirschmann etc.
(IEC 603526)
EX250-SAS3 AS-i standard cable
(YELLOW CABLE)
1
24
3
The M12 cable, AS-i standard cable and connector for T-branch are not supplied by SMC.
Contact each manufacturer for the catalogue details etc.
Wire the cable for AS-Interface line so that the total voltage drop is 3 V or less.
AS
-
i +
Description Function
AS−Interface line (+)
(0 V) ESE VE
AS - i - AS−Interface line ( - )
1
No.
2
3
(24 V) ESE VE4
•Communication connector
E 250-SAS7/E 250-SAS9
Communication connector
•Connection example
M12 cable
Recommendation conductor cross-section: 1.5mm2
Connector for T-branch
ASI FK M12 Hirschmann etc.
(IEC 603526)
EX250-SAS7 AS-i standard cable
(YELLOW CABLE)
Setting
ADDRESS SETTING
SW
EX250
ADDR2ADDR1
HOLD
CLEAR
COM
-ERR
IN
-ERR
AUXPWR
SI
PW
LED LED condition
Green LED is ON Indicates that the power supply for AS-Interface line is turned ON.
AUX Green LED is ON Indicates that the power supply for
output equipment is turned ON.
IN-E ed LED is ON Indicates that an input power supply over current is detected. ∗1
(LED is OFF at normal condition)
LED Indication
Description
COM-E
ed LED is ON
ed LED is flashing
Indicates a communication error.
(LED is OFF at normal condition)
Indicates peripheral equipment error. ∗1
(Over current of input power, blown fuse)
EX250-SAS3/EX250-SAS5 EX250-SAS7/EX250-SAS9
-
(LED is OFF at normal condition)
∗1: EX250-SAS3/EX250-SAS5: Input block
EX250-SAS7/EX250-SAS9: Input block, Output block, Solenoid valve
Address setting
HOLD/CLEAR setting
Over Current Protection setting SW
Address setting procedure via the AS-i line
To set this function, refer to SMC website (U L http://www.smcworld.com) for more detailed
information or contact us.
Tie-rod (2 pcs.)
Accessory
3
ADDR1ADDR2
ADDRESSSETTING
PWRAUXIN
-ERR
COM
-ERR
HOLD
CLEAR
SW
M12 4-pin plug
M12 4-pin plug ∗
M12 4-pin, plug
EX※※-OMP0021-A

No.EX※※-OMP0025-A
PRODUCT NAME
SI unit for AS-Interface
MODEL / Series / Product Number
EX250-SAS#

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No.EX※※-OMP0025-A
Table of Contents
Safety Instructions 2
Product Outline 8
Model Indication and How to Order 9
Summary of Product elements 9
Mounting and Installation 10
Installation 10
Wiring 11
Setting 14
Indication 16
Connection between SI unit output and the solenoid valve 17
Databit 18
Maintenance 19
Troubleshooting 20
Specifications 26
Specifications 26
Dimensions 28

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No.EX※※-OMP0025-A
Safety Instructions
These safety instructions are intended to prevent hazardous situations and/or equipment damage.
These instructions indicate the level of potential hazard with the labels of "Caution", "Warning" or
"Danger". They are all important notes for safety and must be followed in addition to International
standards (ISO/IEC) 1) and other safety regulations.
1) ISO 4414: Pneumatic fluid power -- General rules relating to systems.
ISO 4413: Hydraulic fluid power -- General rules relating to systems.
IEC 60204-1: Safety of machinery -- Electrical equipment of machines. (Part 1: General requirements)
ISO 10218-1992: Manipulating industrial robots -Safety.
etc.
Caution : CAUTION indicates a hazard with a low level of risk which, if not avoided,
could result in minor or moderate injury.
Warning : WARNING indicates a hazard with a medium level of risk which, if not
avoided, could result in death or serious injury.
Danger : DANGER indicates a hazard with a high level of risk which, if not avoided,
will result in death or serious injury.
Warning
1. The compatibility of the product is the responsibility of the person who designs the
equipment or decides its specifications.
Since the product specified here is used under various operating conditions, its compatibility with specific
equipment must be decided by the person who designs the equipment or decides its specifications based on
necessary analysis and test results. The expected performance and safety assurance of the equipment will be
the responsibility of the person who has determined its compatibility with the product. This person should also
continuously review all specifications of the product referring to its latest catalogue information, with a view to
giving due consideration to any possibility of equipment failure when configuring the equipment.
2. Only personnel with appropriate training should operate machinery and equipment.
The product specified here may become unsafe if handled incorrectly. The assembly, operation and
maintenance of machines or equipment including our products must be performed by an operator who is
appropriately trained and experienced.
3. Do not service or attempt to remove product and machinery/equipment until safety is confirmed.
1. The inspection and maintenance of machinery/equipment should only be performed after measures to prevent
falling or runaway of the driven objects have been confirmed.
2. When the product is to be removed, confirm that the safety measures as mentioned above are implemented
and the power from any appropriate source is cut, and read and understand the specific product precautions of
all relevant products carefully.
3. Before machinery/equipment is restarted, take measures to prevent unexpected operation and malfunction.
4. Contact SMC beforehand and take special consideration of safety measures if the product is
to be used in any of the following conditions.
1. Conditions and environments outside of the given specifications, or use outdoors or in a place exposed to direct
sunlight.
2. Installation on equipment in conjunction with atomic energy, railways, air navigation, space, shipping,
vehicles, military, medical treatment, combustion and recreation, or equipment in contact with food and
beverages, emergency stop circuits, clutch and brake circuits in press applications, safety equipment or
other applications unsuitable for the standard specifications described in the product catalogue.
3. An application which could have negative effects on people, property, or animals requiring special safety
analysis.
4. Use in an interlock circuit, which requires the provision of double interlock for possible failure by using a
mechanical protective function, and periodical checks to confirm proper operation.

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No.EX※※-OMP0025-A
Caution
The product is provided for use in manufacturing industries.
The product herein described is basically provided for peaceful use in manufacturing industries.
If considering using the product in other industries, consult SMC beforehand and exchange specifications or
a contract if necessary.
If anything is unclear, contact your nearest sales branch.
Limited warranty and Disclaimer/Compliance Requirements
The product used is subject to the following "Limited warranty and Disclaimer" and "Compliance
Requirements".
Read and accept them before using the product.
Limited warranty and Disclaimer
1. The warranty period of the product is 1 year in service or 1.5 years after the product is delivered,
whichever is first. 2)
Also, the product may have specified durability, running distance or replacement parts. Please
consult your nearest sales branch.
2. For any failure or damage reported within the warranty period which is clearly our responsibility, a
replacement product or necessary parts will be provided.
This limited warranty applies only to our product independently, and not to any other damage
incurred due to the failure of the product.
3. Prior to using SMC products, please read and understand the warranty terms and disclaimers noted
in the specified catalogue for the particular products.
2) Vacuum pads are excluded from this 1 year warranty.
A vacuum pad is a consumable part, so it is warranted for a year after it is delivered.
Also, even within the warranty period, the wear of a product due to the use of the vacuum pad or failure due to
the deterioration of rubber material are not covered by the limited warranty.
Compliance Requirements
1. The use of SMC products with production equipment for the manufacture of weapons of mass
destruction (WMD) or any other weapon is strictly prohibited.
2. The exports of SMC products or technology from one country to another are governed by the
relevant security laws and regulation of the countries involved in the transaction. Prior to the
shipment of a SMC product to another country, assure that all local rules governing that export are
known and followed.

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No.EX※※-OMP0025-A
Operator
This operation manual is intended for those who have knowledge of machinery using pneumatic
equipment, and have sufficient knowledge of assembly, operation and maintenance of such
equipment. Only those persons are allowed to perform assembly, operation and maintenance.
Read and understand this operation manual carefully before assembling, operating or providing
maintenance to the product.
■Safety Instructions Warning
■Do not disassemble, modify (including changing the printed circuit board) or repair.
An injury or failure can result.
■Do not operate the product outside of the specifications.
Do not use for flammable or harmful fluids.
Fire, malfunction, or damage to the product can result.
Verify the specifications before use.
■Do not operate in an atmosphere containing flammable or explosive gases.
Fire or an explosion can result.
This product is not designed to be explosion proof.
■If using the product in an interlocking circuit:
•Provide a double interlocking system, for example a mechanical system.
•Check the product regularly for proper operation.
Otherwise malfunction can result, causing an accident.
■The following instructions must be followed during maintenance:
•Turn off the power supply.
•Stop the air supply, exhaust the residual pressure and verify that the air is released before performing
maintenance.
Otherwise an injury can result. Caution
■After maintenance is complete, perform appropriate functional inspections.
Stop operation if the equipment does not function properly.
Safety cannot be assured in the case of unexpected malfunction.
■Provide grounding to assure the safety and noise resistance of the Fieldbus system.
Individual grounding should be provided close to the product with a short cable.

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No.EX※※-OMP0025-A
■NOTE
○Follow the instructions given below when designing, selecting and handling the product.
The instructions on design and selection (installation, wiring, environment, adjustment, operation,
maintenance, etc.) described below must also be followed.
Product specifications
•When conformity to UL is necessary the SI unit must be used with a UL1310 Class2 power supply.
•The SI unit is a UL approved product only if they have a mark on the body.
•Use the specified voltage.
Otherwise failure or malfunction can result.
•Reserve a space for maintenance.
Allow sufficient space for maintenance when designing the system.
•Do not remove any nameplates or labels.
This can lead to incorrect maintenance, or misreading of the operation manual, which could cause damage or
malfunction to the product.
It may also result in non-conformity to safety standards.

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No.EX※※-OMP0025-A
Product handling
Installation
•Do not drop, hit or apply excessive shock to the fieldbus system.
Otherwise damage to the product can result, causing malfunction.
•Tighten to the specified tightening torque.
If the tightening torque is exceeded the mounting screws may be broken.
IP67 protection cannot be guaranteed if the screws are not tightened to the specified torque.
•Never mount a product in a location that will be used as a foothold.
The product may be damaged if excessive force is applied by stepping or climbing onto it.
Wiring
•Avoid repeatedly bending or stretching the cables, or placing heavy load on them.
Repetitive bending stress or tensile stress can cause breakage of the cable.
•Wire correctly.
Incorrect wiring can break the product.
•Do not perform wiring while the power is on.
Otherwise damage to the fieldbus system and/or I/O device can result, causing malfunction.
•Do not route wires and cables together with power or high voltage cables.
Otherwise the fieldbus system and/or I/O device can malfunction due to interference of noise and surge voltage
from power and high voltage cables to the signal line.
Route the wires (piping) of the fieldbus system and/or I/O device separately from power or high voltage cables.
•Confirm proper insulation of wiring.
Poor insulation (interference from another circuit, poor insulation between terminals, etc.) can lead to excess
voltage or current being applied to the product, causing damage.
•Take appropriate measures against noise, such as using a noise filter, when the fieldbus system is
incorporated into equipment.
Otherwise noise can cause malfunction.
Environment
•Select the proper type of protection according to the environment of operation.
IP67 protection is achieved when the following conditions are met.
(1)The units are connected properly with fieldbus cable with M12 connector and power cable with M12 (M8)
connector.
(2)Suitable mounting of each unit and manifold valve.
If using in an environment that is exposed to water splashes, please take measures such as using a cover.
If the product is to be used in an environment containing oils or chemicals such as coolant or cleaning solvent, even
for a short time, it may be adversely affected (damage, malfunction etc.).
•Do not use the product in an environment where corrosive gases or fluids could be splashed.
Otherwise damage to the product and malfunction can result.
•Do not use in an area where surges are generated.
If there is equipment which generates a large amount of surge (solenoid type lifter, high frequency induction furnace,
motor, etc.) close to the fieldbus system, this may cause deterioration or breakage of the internal circuit of the
fieldbus system. Avoid sources of surge generation and crossed lines.
•When a surge-generating load such as a relay or solenoid is driven directly, use an fieldbus system with
a built-in surge absorbing element.
Direct drive of a load generating surge voltage can damage the fieldbus system.
•The product is CE marked, but not immune to lightning strikes. Take measures against lightning strikes
in the system.
•Prevent foreign matter such as remnant of wires from entering the fieldbus system to avoid failure and
malfunction.

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No.EX※※-OMP0025-A
•Mount the product in a place that is not exposed to vibration or impact.
Otherwise failure or malfunction can result.
•Do not use the product in an environment that is exposed to temperature cycle.
Heat cycles other than ordinary changes in temperature can adversely affect the inside of the product.
•Do not expose the product to direct sunlight.
If using in a location directly exposed to sunlight, shade the product from the sunlight.
Otherwise failure or malfunction can result.
•Keep within the specified ambient temperature range.
Otherwise malfunction can result.
•Do not operate close to a heat source, or in a location exposed to radiant heat.
Otherwise malfunction can result.
Adjustment and Operation
•Set the switches by using a sharp-pointed screwdriver etc.
It may damage set switches.
•Perform settings suitable for the operating conditions.
Incorrect setting can cause operation failure.
For details of each setting, refer to page 14 of this manual.
•Please refer to the PLC manufacturer's manual etc. for details of programming and addresses.
For the PLC protocol and programming refer to the relevant manufacturer's documentation.
Maintenance
•Turn off the power supply, stop the supplied air, exhaust the residual pressure and verify the release of
air before performing maintenance.
There is a risk of unexpected malfunction.
•Perform regular maintenance and inspections.
There is a risk of unexpected malfunction.
•After maintenance is complete, perform appropriate functional inspections.
Stop operation if the equipment does not function properly.
Otherwise safety is not assured due to an unexpected malfunction or incorrect operation.
•Do not use solvents such as benzene, thinner etc. to clean the each unit.
They could damage the surface of the body and erase the markings on the body.
Use a soft cloth to remove stains.
For heavy stains, use a cloth soaked with diluted neutral detergent and fully squeezed, then wipe up the stains
again with a dry cloth.

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No.EX※※-OMP0025-A
Product Outline
System configuration
This system connects input/output devices to AS-Interface with reduced wiring. AS-Interface communicates
with the input/output devices via the SI unit.
Input blocks, EX9 series output blocks and valve manifolds can be connected.
1: Refer to the operation manual EX250-IE1 / -IE2 / -IE3 for the input block specifications, and
EX9-OET1 / -OET2 / -OEP1 / -OEP2 / -PE1 for the output block and power block specifications.

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No.EX※※-OMP0025-A
Model Indication and How to Order
EX250-S AS 3
Input / output and power supply
3 PNP (negative common) / source, 8 inputs / 8 outputs, 2 power supply systems
5 PNP (negative common) / source, 4 inputs / 4 outputs, 2 power supply systems
7 PNP (negative common) / source, 8 inputs / 8 outputs, 1 power supply system
9 PNP (negative common) / source, 4 inputs / 4 outputs, 1 power supply system
Communication protocol
AS AS-Interface
Summary of Product elements
No. Element Description
1 Communication connector Sends or receives the communication signals via AS-Interface line. 2
2 Power supply connector for
output equipment 1Supplies power to the solenoid valve, output block, etc. 2
3 Input block connector Connects the input block.
4 Output block connector Connects the solenoid valve or output block, etc.
5 Display window Displays the status of the SI unit with LEDs. 3
6 Switch cover Sets the address, etc. with the switch inside. 3
7 Grounding terminal (FE) 1Used for grounding.
1: Available only for EX250-SAS3/-SAS5.
2: Refer to “Wiring" in the SI unit section on page 11 of this operation manual.
3: Refer to “Indication” in the SI unit section on page 16 of this operation manual.

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No.EX※※-OMP0025-A
Mounting and Installation
■Installation
The SI unit does not have mounting holes, so it cannot be installed alone. Make sure to connect the solenoid
valve. When an input block is not required, connect the end plate directly to the SI unit.
○Installation example
Dimensions when VQC2000 series solenoid valve manifold is connected are shown in the table below for
reference.
Refer to the specific catalogue for the dimensions when other solenoid valve manifolds are connected.
L 0 1 2 3 4 5 6 7 8
L1 45 55.5 66 76.5 87 97.5 108 118.5 129
L2 89.8 110.8 131.8 152.8 173.8 194.8 215.8 236.8 257.8
(mm)
Wiring (for power supply, communication, input and output) and piping are carried out on one side only. On
this side, make a space for wiring and piping.
N_m

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No.EX※※-OMP0025-A
■Wiring
○The topology of an AS-i network
The topology of an AS-i network can be connected as a tree, a line or point to point. The maximum total
length of the cable must be 100 m.
It is possible to extend the total length of the cable up to 300 m by using a repeater.

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No.EX※※-OMP0025-A
○Wiring
•EX250-SAS3/-SAS5
Communication connector: M12 4-pin, plug
No. Description Function
1 AS-i + ASInterface line (+)
2 (0 V)
(Power supply for output equipment (
- ))
3 AS-i - ASInterface line ( - )
4 (24 V)
(Power supply for output equipment (+))
Power supply connector for output equipment: M12 4-pin, plug
No. Description Function
1 24 V
Power supply for output equipment (+)
2 N.C. Unused
3 0 V
Power supply for output equipment (
- )
4 N.C. Unused
: Connected inside the SI unit.
•Connection example
The M12 cable, AS-i standard cable and connector for T-branch are not supplied by SMC.
Contact each manufacturer for the catalogue details etc.
Wire the cable for AS-Interface line so that the total voltage drop is 3 V or less.


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No.EX※※-OMP0025-A
•EX250-SAS7/-SAS9
Communication connector: M12 4-pin, plug
No. Description Function
1 AS-i + ASInterface line (+)
2 RESERVE RESERVE
3 AS-i - ASInterface line (
- )
4 RESERVE RESERVE
•Connection example
The M12 cable, AS-i standard cable and connector for T-branch are not supplied by SMC.
Contact each manufacturer for the catalogue details etc.
Wire the cable for AS-Interface line so that the total voltage drop is 3 V or less.

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No.EX※※-OMP0025-A
Setting
○Address setting
The AS-I cable line should be disconnected from the SI unit while setting the address. Open the cover and
set the address using an AS-Interface address programming device and DC power jack cable etc.
(PEPPERL + FUCHS: VAZ-PK-V1-Cinch, SIEMENS: 3RK1901-3HA00 etc.) The Address assignment
range is 1 to 31.
The address can be set regardless of connecting order, but it is not possible to set address overlap.
The address at shipment from the factory is 0. Set different address for ADDR1 and ADDR2 as
EX250-SAS3/-SAS7 occupy 2 slaves respectively.
: If the address is to be set by the AS-I cable line via a master unit, in EX250-SAS3/-SAS7, it is possible to set the slaves one by one
using the DC power jack for address setting inserted, to disconnect from the AS-I cable line the slave which is not subject to address
setting at the moment (ADDR1 or ADDR2) (See page 15 for details). LED’s turned on during address setting is not unusual.
•EX250-SAS3/-SAS7
ADDR1: Address setting for IN0 to 3 / OUT0 to 3
ADDR2: Address setting for IN4 to 17 / OUT4 to 7
○HOLD/CLEAR setting
Set whether to maintain the SI unit output condition (HOLD) or to turn off the outputs (CLEAR) when a
communication error is generated.
: This switch at shipment from the Factory is set to CLEAR.
○Over Current Protection setting SW
•Over Current Protection setting SW-ON (OCP-ON)
When the over current load is connected with an input/output block 1(input block, output block, solenoid
valve), and the unit supply current value (specification value) is exceeded, the SI unit IN-ERR LED will turn
ON, and the COM-ERR LED will flash. The power supply to each block 1 will be disconnected.
•Over Current Protection setting SW-OFF (OCP-OFF)
When the over current load is connected with an input/output block  (input block, output block, solenoid
valve), and the unit supply current value (specification value) is exceeded, the SI unit IN-ERR LED will turn
ON, and the COM-ERR LED will flash.
The power supply to the input/output block 1 does not change.
: This switch at shipment from the Factory is OCP-ON.
1: Input block only for EX250-SAS3/-SAS5.
Note
Using the SI unit with the setting OCP-OFF does not conform to the AS-I specification.
Therefore, please use the SI unit with OCP-ON.
Turn off the power supply and remove the cause immediately when over current load is connected with
the input block, and the peripheral fault error occurs by over current detection. Using the SI unit with the
peripheral fault error will cause unit damage.

-15-
No.EX※※-OMP0025-A
○Address setting procedure via the AS-i line
The following is the procedure for address setting of the master unit via the AS-i line with
EX250-SAS3/-SAS7 (8 inputs / 8 outputs, and address connector – 2 pcs.).
For setting the unit which occupies two slaves (EX250-SAS3/-SAS7), plug the cable jack into the address
which is not to be set (ADDR2 when ADDR1 is set) to disconnect the address from the AS-i line.
<Address setting of ADDR1> 1
1. Plug the cable jack into the connector for setting ADDR2. (to disconnect ADDR2 from the line)
2. Connect the AS-i line to the SI unit communication connector to apply the AS-i power supply.
3. Set the ADDR1 address from the master unit.
4. Turn off the AS-i power supply. 2
<Address setting of ADDR2> 1
5. Pull out the cable jack which is plugged into the connector for setting ADDR2, and plug it into ADDR1. (to
disconnect ADDR1 from the line)
6. Apply the AS-i power supply.
7. Set the address of ADDR2 from the master unit.
8. Turn off the AS-i power supply. 1
9. Pull out the cable jack from the connector for setting ADDR1.
Address setting completed. After setting, wire any other AS-i units.
1: Procedure above is an example for setting the address in order of ADDR1 -> ADDR2. It is not a problem to set the address in order
of ADDR2->ADDR1.
2: Turn off the AS-i power supply when connecting/disconnecting the cable jack.
3: SMC does not provide the cable jack.

-16-
No.EX※※-OMP0025-A
Indication
Description
LED LED condition EX250-SAS3/-SAS5 EX250-SAS7/-SAS9
PWR Green LED is ON Indicates that the power supply for AS-Interface line is turned ON.
AUX Green LED is ON Indicates that the power supply for
output equipment is turned ON.
-
(LED is OFF at normal condition)
IN-ERR Red LED is ON Indicates that an input power supply over current is detected. 1
(LED is OFF at normal condition)
Red LED is ON Indicates a communication error.
(LED is OFF at normal condition)
COM-ERR
Red LED is flashing Indicates peripheral equipment error. 1
(Over current of input power, blown fuse)
1: EX250-SAS3/-SAS5: Input block
EX250-SAS7/-SAS9: Input block, Output block, Solenoid valve

-17-
No.EX※※-OMP0025-A
Connection between SI unit output and the solenoid valve
○Standard wiring
The outputs of the SI unit are assigned from the D side solenoid valve in the order 0, 1, 2 … etc.
Refer to each solenoid valve’s catalogue for details.
•Standard Address Mode
(EX250-SAS3/-SAS7, EX250-IE3, Manifold standard wiring, Double solenoid wiring)
○Special wiring
Mixed wiring of single and double wiring inside the manifold is available. The wiring type is specified by
description of single or double solenoid valve mounted on the manifold.
In order to specify mixed wiring, completion of manifold type solenoid valve specifications sheet is required.

-18-
No.EX※※-OMP0025-A
Data bit
•SI unit input/output data bit
Address Data bit EX250-SAS3/-SAS7 EX250-SAS5/-SAS9
D0 IN0 / OUT0 IN0 / OUT0
D1 IN1 / OUT1 IN1 / OUT1
D2 IN2 / OUT2 IN2 / OUT2
ADDR1
D3 IN3 / OUT3 IN3 / OUT3
D0 IN4 / OUT4
D1 IN5 / OUT5
D2 IN6 / OUT6
ADDR2
D3 IN7 / OUT7
-
•Status register
It is possible to check the peripheral fault error (a blown input block fuse or detecting over current of input
power supply) by monitoring the status bit S1, which complies with the AS-i Version 2.1.
It is possible to confirm the peripheral fault error only by status register on the ADDR1 side for
EX250-SAS3/-SAS7 which occupy 2 slaves.
Note
Turn off the power supply and remove the cause immediately when over current load is connected with
the input block, and the peripheral fault error occurs by over current detection. Using with the peripheral
fault error can cause unit damage.