SMC Networks EX250 Series Operation Manual

Fieldbus device

Operation Manual

EX250 Series for CANopen

Summary of Product elements

1

7

5

6

2

4

Mounting and Installation

Tie-rod (2 pcs)
a

ccessory

3

Communication connector

Description Function

Connect with CANopen communication line.

Power supply connector

Supplies power to the solenoid valve, the Output block, SI unit and the Input
block.

Input block connector Connects the Input block.

Display LED display shows the SI unit status.

Switch protective cover Set node ID and Baud rate by using the switches under the cover.

1

No.

2

3

5

6

FE Used for grounding.

7

Output block connector

Connects the solenoid valve, Output block and etc.

4

Installation

T

he SI unit does not have mounting holes, so it cannot be installed alone. Make sure to

c

onnect the solenoid valve. When an input block is not required, connect the end plate

directly to the SI unit.

Setting

End plate SI unit Valve manifold

M3 hexagon screw
T

ightening torque: 0.6 Nm

Tie rod
T

ightening torque: 0.6 Nm

BUS

P

WR

R

R

3

3

XX

PP

11

12 12

AA

B

B

Exchange of SI unit

•Remove screws from End Plate and release connection of each unit.

•Replace 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

•Remove 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.

Troubleshooting

Technical documentation giving detailed troubleshooting information can be found
on the SMC website (URL http://www.smcworld.com

).

Specifications

Power for CANopen communication: 18 to 30 VDC, 0.1 A or less
Power for input block: 24 VDC ±20%, 1 A or less (Depending on number of connecting

sensors and specifications)

Power for solenoid valve: 24 VDC +10%/-5%, 2 A or less

(Depending on number of solenoid valve station and
specifications)

Connection load: Solenoid valve with protection circuit for 24 VDC and 1.5 W or less surge

voltage. (made by SMC)

Operating ambient temp: -10 to 50

o

C Storage ambient temp: -20 to 60 oC

Pollution degree: Pollution degree 3 (UL508)

Technical documentation giving detailed specification information can be found on
the SMC website (URL http://www.smcworld.com

).

Outline Dimensions

Technical documentation giving detailed outline dimensions information can be
found on the SMC website (URL http://www.smcworld.com

).

A

ssembly and disassembly of the SI unit

NOTE

When conformity to UL is necessary the SI unit must be used with a UL1310
Class2 power supply.

Safety Instructions

Do not operate the product outside of the specifications.

Do not use for flammable or harmful fluids.
F

ire, 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.

A

n 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 safety and noise resistance of the Fieldbus system.

Individual grounding should be provided close to the product with a short cable.

T

hank you for purchasing an SMC EX250 Series Fieldbus device (Hereinafter
referred to as "SI unit" ).
Please read this manual carefully before operating the product and make sure you
u

nderstand its capabilities and limitations.
Please keep this manual handy for future reference.

T

o obtain more detailed information about operating this product,
please refer to the SMC website (URL http://www.smcworld.com

) or

contact SMC directly.

Safety Instructions

T

hese 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.

C

AUTION indicates a hazard with a low level of risk which, if

not avoided, could result in minor or moderate injury.

Caution:

Warning:

Danger:

W

ARNING indicates a hazard with a medium level of risk

which, if not avoided, could result in death or serious injury.

D

ANGER indicates a hazard with a high level of risk which, if

n

ot 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.
Read and understand this operation manual carefully before assembling,
operating or providing maintenance to the product.

Wiring

Communication wiring

SW power is supplied to the sensor connected to the input block. There is a voltage drop up
t

o maximum 1 V inside the SI unit when SW power is supplied. Select a sensor taking this
voltage drop into consideration. If 24 V must be supplied to the sensor, it is necessary to
i

ncrease the SW power supply voltage so that the input voltage of the sensor will be 24 V with
the actual load. (Allowable SW power supply range: 19.2 V to 28.8 V)

S

I unit Input block

S

ensor

23 VDC

24 VDC

Voltage reduction of approx.1V

B

us cable and termination resistors

T

he cables, connectors, and termination resistors used in CANopen networks shall

m

eet the requirements defined in ISO 11898. In addition, here are given some

g

uidelines for selecting cables and connectors.

T

he table below shows some standard values for DC parameters for CANopen

n

etworks with less than 64 nodes.

S

witch setting

B

efore setting of Node-ID by DIP switch, turn “OFF” power supply to the SI unit.

S

etting of Node-ID

Set SW7 to 0. (SW7 is not used.)

Set SW8 to 1. (fixed)

Setting of output when stopped state

SW9

0

Output Value shall take the pre-defined condition specified in
Error Value Output Object (6207h,6307h,6327h)
Default: all outputs are cleared.

1 Output Value shall be kept.

Output condition of solenoid valve when stopped state by an error
occurs (Error Control ,Emergency Object) or "Stop Remote Node"
command is received.

Setting of mode

SW10

1

SW mode. Setting of Node-ID is achived via network.
SW1-8 become unavailable. Node-ID can be set up to 127.
Default is 127 (7Fh).

Mode

0HW mode. Setting of Node-ID is achieved by DIP switches SW1-6.

1

0

ON

31 245678910

Node-ID SW1

00
11
20

62 0
63 1

SW2

0
0
1

1
1

SW3

0
0
0

1
1

SW4

0
0
0

1
1

SW5

0
0
0

1
1

SW6

0
0
0

1
1

....

No.

Station

f

ig.a

No.

446Side A

Side B

223

0

Double Single Double Double

1

1357

O

pen

No.

Station

f

ig.b

No.

345Side A

Side B

223

0

Double Single Double Double

1

1-46

Output No. assignment

Combinations of output data and valve manifold

Note: Specifications are subject to change without prior notice and any obligation on the part of the manufacturer.
© 2011 SMC Corporation All Rights Reserved

Akihabara UDX 15F, 4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021, JAPAN
Phone: [phone] Fax: [phone]

URL http://www.smcworld.com

∗: Output numbers are assigned to stations from side D to U of manifold in order. (See manual of

each valve manifold for the directions of side D and U).

∗: Standard manifold is wired in double. Output numbers are assigned to side A and B alternatively.

In case of single solenoid valve, output on side B is free. (Refer to fig.a)

∗: Mixed (single and double) wiring is available as long as wiring specifications designate it. This

allows output numbers to be specified without having free output. (Refer to fig.b)

∗: Each bit of data sent from master (4 bytes) shows ON/OFF (0: OFF, 1: ON) of solenoid valve.

Starting from LSB of the first byte (Offset0), output numbers are assigned to all the bits in
numeric order.

I

nput No. assignment

The inputs of the Input block are assigned from the SI unit side Input block in the order
0

,1,2…maximum of 31.

Bit: 7 0

Bit: 7 0

Bit: 7

0

Bit: 7 0

10357

24698171631302928

࣬࣬࣬࣬࣬࣬

࣬࣬࣬

࣬࣬࣬

࣬࣬࣬

࣬࣬࣬

75

02460 0 46

Output No.

Output No.

Bit No.

Bit No.

Valve maifold

Solenoid on side A

Solenoid on side B

0: Solenoid valve: OFF
1: Solenoid valve: ON

Byte
0 Offset

Byte
1 Offset

Byte
2 Offset

Byte
3 Offset

Side D

(SI unit side)

13571

࣬࣬࣬

1

Side U

Accessories

Technical documentation giving detailed accessories information can be found on
the SMC website (URL http://www.smcworld.com

).

•Communication connector M12 5 pins plug A-coded

CAN_SHLD

Description Function

Shield

CAN_V+ Power supply + for CANopen

CAN_GND Power supply − for CANopen

CAN_L CAN_L bus line (dominant low)

1

No.

2

3

5

CAN_H CAN_H bus line (dominant high)4

14

5

23

Communication wiring

Relation Baud rate and Bus length are as follows.

1 M 800 k

Max. bus cable length (m)

Baud rate (Communication speed) (bit/s) 500 k 250 k 125 k 50 k 20 k 10 k

25

50 100 250 500

1000

2000 5000

Example of connection cable: M12 socket 5 pins cable with shield (according to ISO11898)

SV24 V

Description Function

+24 V for solenoid valve.

SV0 V 0 V for solenoid valve

SW24 V +24 V for input block

FE Function ground

1

No.

2

3

5

SW0 V 0 V for input block4

Power supply wiring

•Power supply connector M12 5pins plug B-coded (reverse key type)

Example of connection cable: EX9-AC050-1 etc.

LED indication

P

WR(V) CANPWR

ADDRESS

1

0

EX250

G

reen Light (blinking)

LED Description

Illuminates when SI unit is in the Operational state.

Green Light

I

lluminates when power for CANopen line is supplied.

PWR(V) Green Light

CAN

Illuminates when power for solenoid valves is supplied.

PWR Green Light

Green Light (single flash)

Red Light (single flash)

Red Light (double flash)

Single flash when SI unit is in Stopped state.

S

I unit is in the Pre-Operational state.

<

60

Bus length [m]

B

us cable specification

0

.34

…

0

.6

<

70

0.25…0.34

0…4

0

Length-related resistance

[mΩ/m]

300…600

Cross-section [mm2]

40…300

<40

<

26

0

.75

…

0

.8

0.5…0.6

600…1000

Termination

resistance [Ω]

124

150…300

150…300

1

50

…

3

00

FE connection

C

onnect the ground terminal to the ground. Resistance to the ground should be 100 Ω

or less.

F

or drop cables a wire cross-section of 0.25 to 0.34 mm

2

w

ould be an appropriate

c

hoice in many cases.

B

esides the cable resistance, there should also be considered the real resistance of

t

he connectors, if calculating the voltage drop. The read resistance of one connector

s

hould be in the range of 2.5 to 10 mΩ.

Green / Red Light (flickering)

Red Light

Double flash when Error Control Event occurs.

Single flash when CAN controller error occurs.

SI unit is in “Bus OFF” state.

Flickering when SI unit is in Configuration mode. (LSS services)

14

5

23