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" # $) "! *''$) Relay contact output modules offer drycircuits, that is, circuits without leakage current. Leakage currentsare present on solid-state outputs; these currents are capable ofenergizing highly sensitive output load devices such as low-powerlatching relays. Open contacts on output relays assure that noleakage currents occur in critical applications.

") ) %$ *') %$ #% %' %*)&*)( Allen-Bradley relaycontact output modules offer either normally-open (Form A) ornormally-closed (Form B) configurations. You can select the formconfiguration for four of the contact output modules, the 1771-OW,-OW16, -OWN, and -OX. The 1771-OW has eight selectableoutputs. The 1771-OW16 has eight normally-open and eightselectable outputs. The 1771-OWN has 32 selectable outputs.The1771-OX has four selectable outputs. Selectable–configurationmeans you can predetermine whether an output will be on or offwhen local power is lost to the control system or the output module.The 1771-OWNA has 32 non-selectable normally-open contacts.

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Isolation helps assure that a failure on oneoutput circuit does not pull down another output circuit, thusincreasing overall system integrity. This isolation also protects thebackplane logic from line transients on the output circuits.

! " You can apply either ac ordc voltages to relay contact output circuits. The range of thesevoltages can be broad (within the module’s operating specifications)without impacting the module’s performance.

Contacts on relays permit dc outputs to besinking or sourcing as required by the devices being controlled.Solid-state outputs require specific compatibility with the loaddevice as to current sinking or sourcing.

" You can use analog moduleinputs for different devices by switching circuits through relays.Analog signals are typically low voltage (+10V dc) and low current(4-20 mA). Contact resistance can be critical, and should beaccounted for in low-impedance circuits.

This publication provides you with information aboutAllen-Bradley’s relay contact output modules. The publication isdivided into two sections. The first section contains generalinformation that pertains to all of the relay modules; the secondsection contains module-specific information. The following tablelists the relay contact modules and the page number on which youcan find information about each.

Relay Contact Output Modules

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Allen-Bradley relay contact output modules use one of the followingrelay types:

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Electromechanical relays contain the most economical design forpower applications. These modules typically can handle line surgesand noise through closed contacts. Electromechanical relays are notrecommended for low voltage/low current applications.Electromechanical relays are generally slower than dry-reed relays.They are not recommended for use in environments withcontaminants such as acid, ammonia, nitrogen, or chlorine (noxiousenvironments) because they are not hermetically sealed.Allen-Bradley modules that use electromechanical relays include the1771-OW, 1771-OW16, 1771-OWN, and 1771-OWNA modules.

Dry-reed relays are noted for their speed. These relays arewell-suited for low-voltage, low-power applications. They arehermetically sealed and thus offer protection in noxiousenvironments. Dry reeds, however, cannot handle surge currents dueto their low-voltage design. Allen-Bradley modules that usedry-reed relays are the 1771-OYL and 1771-OZL modules.

The mercury-wetted relay is a power version of the dry-reed switch.These relays feature long life and high contact reliability because themercury re-coats the contacts on every operation. Mercury-wettedrelays are also hermetically sealed and have no bounce on outputsand offer a clean switch. Of the three types of relays,mercury-wetted relays are the slowest (10 ms). ATTENTION: The 1771-OX module contains mercury-wetted relays. At the end of the

equipment's life, it should be collected separately from any unsorted municipal waste.

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The following table lists the Allen-Bradley relay contact outputmodules and shows compatibility and use of data table for each.

System Compatibility and Use of Data Table

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Relay contact output modules receive power through the 1771 I/Ochassis backplane from the chassis power supply. Refer to themodule specifications on pages 11 through 24 for the currentrequired from the power supply (in mA) to operate the module. Youshould total the current requirements for all the modules in thechassis to avoid overloading the power supply or the I/O chassisbackplane.

Plastic keying bands shipped with each I/O chassis let you configureyour I/O slots to accept only one type of module. You can configureany backplane connector in an I/O chassis to receive your contactoutput module except for the leftmost connector, which is reservedfor adapter or processor modules. Since mixed voltages are oftenused on relay modules, most of the contact output relay modules allhave the same keying slots. Refer to the module specifications forspecific keying positions.

Status indicators on the front of each module show the system logicside status of the output relays. Each module has one indicator peroutput. When the indicator is on, it means the output relay coil isenergized; when the indicator is off, it means the output relay coil isnot energized. You can quickly isolate many types of externalhardware-related faults by comparing these indicators with theircorresponding output devices, and the control program.

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When using relay contact output modules, you must consider thefollowing:

Relays have a finite number of operations during their life. Thisvaries depending on the current loads and voltages you apply relativeto the relay’s design specifications. A relay that is always operatingat the same load conditions has a very predicatable life. A low powerload delivers longer contact life when the minimum load conditionsare met. Varying load conditions can drastically shorten contact life.Do not operate a contact at low current or voltage conditions afteroperating the same relay under high power conditions. Operate atlow power first, then at high power.

Electromechanical relays typically have a longer life than dry-reedrelays. When selecting a relay type, we recommend that youconsider the number of operations expected over time and the loadplaced on the relay.

The switching frequency of a relay is limited by its mechanicalcharacteristics. To obtain maximum relay life, do not exceed themaximum switching frequency of the module.

All types of relay outputs have a specified time in which contact ismade or broken (pull-in or drop-out times). Dry-reed relays arenotably faster than electromechanical. Electromechanical anddry-reed relays have contact bounce. Mercury-wetted relays do nothave bounce.

All wiring between the module and the load creates a certain amountof capacitive loading for the relay contacts. This capacitance isdischarged during contact closure. The resulting peak current flowcauses additional wear of the contact. Avoid this effect by keepingyour cable lengths as short as possible, and, if possible, insert aresistor in series with your load. Locate the resistor as near aspossible to the field wiring arm. Size the resistor properly.

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Many loads (relays, coils, motor starters, solenoids, motors, etc.)contain a certain amount of inductance. This inductance does notallow an instantaneous change of current when the relay contactsopen. As a result, the voltage across the contacts rises to a very highlevel, and causes arcing between the contacts. This arcing reducesthe life of the contacts.We recommend you use a resistor-capacitor(RC) network (also called a “snubber”) across the contacts in allcircuits.

!ATTENTION: Failure to use a resistor-capacitor(RC) network across the relay contacts can result ingeneration of electromagnetic noise which coulddisrupt nearby electrical equipment, including the 1771I/O chassis.

The best location for the RC network is across the relay contactterminals on the field wiring arm. This location suppresses the noisewhere it is generated, and does not let the noise radiate along thewiring going to the load.

The 1771-OW, -OW16, -OWN, -OWNA, -OYL, and -OZL modulesare not approved by UL/CSA for use with reactive loads. The1771-OX module is designed with selectable dc surge protectioncircuitry.

The formula necessary to determine the appropriate values for theRC network is shown below. Use a capacitor with an ac voltagerating greater than the maximum voltage seen across the contacts.Use a 5%, 1 Watt carbon composition resistor.

Resistor-Capacitor Network Calculation of Values

R

CV

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C = I 2/10 in µF

R = V/(10I a) in ohms

Where: I = AmpsV = Voltsa = 1 + (50/V)

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Incandescent lamps also create a spike due to their low turn-onresistance before they become hot. Therefore, you must use deratingor surge suppression (for example Allen-Bradley surge suppressors1492-H2K120, 1492-H2K024, and 1492-H2K240). Specified relaycurrent is typically derated at ten times the steady-state current of theincandescent lamp load. For derating, you can calculate cold-startload by measuring the cold load resistance. You can also experiencelarge current surges when bulbs burn out (e.g. 20-50 amps).

The operating temperature of the relay greatly influences the life ofthe relay contacts. The 1771 relay contact output modules have amaximum operating temperature of 60o. Operation at lowertemperatures will extend relay contact life.

Since electromechanical relays are not hermetically sealed, they arenot recommended in environments with contaminants such as acid,ammonia, nitrogen, and chlorine— especially with voltages under24V ac/dc or for prolonged periods without operation. Suchenvironments contaminate the relay contacts, causing reliabilityproblems. Higher voltage usage, between 24 and 120V ac/dc, andcontinued operation help keep contacts clean as a result of theburning off of contact contaminants. Relays are also subject toreliability problems under high vibration environments asmechanical motion can intermittently break contacts.

Mercury-wetted relays and dry-reed relays are hermetically sealedfrom the environments, thus preventing environmental reliabilityproblems. Mercury-wetted relays are generally sensitive tomounting position.

The life of the relays in the output modules is directly affected by theload through the contacts and the operating temperature.

Minimum currents and voltages specified for 1771 relay contactoutput modules are selected to provide clean contacts throughout thelife of the contacts. The relays can operate below the minimumspecifications, but operation will not be reliable.

Exceeding the maximum power ratings for the module will shortenthe life of the relay contacts. Do not operate relay contact outputmodules at power levels greater than maximum specifications.

By using the operating range graphs, you can determine if you arewithin the operating capability of the relay. You only need to knowany two of the following:

• voltage• load current (mA)• load power consumption (W)

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Using Figure 1, follow this example:

Given a 30V dc, 4W indicator, is this in operating range?

1. Locate the vertical line for 30V.

2. Locate the angled line for 4W; it is at this angle (\).

3. Find where the two lines cross. If this is within the shaded areaof the graph, you are in the permissible operating area for therelay contact output module. (In this example, you are in thepermissible operating range.)

Refer to the following operating range graphs to determine theoperating capability of the relay.

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If this product has the CE mark it is approved for installation withinthe European Union and EEA regions. It has been designed andtested to meet the following directives.

This product is tested to meet Council Directive 89/336/EECElectromagnetic Compatibility (EMC) and the following standards,in whole or in part, documented in a technical construction file:

• EN 50081-2EMC – Generic Emission Standard, Part 2 –Industrial Environment

• EN 50082-2EMC – Generic Immunity Standard, Part 2 –Industrial Environment

This product is intended for use in an industrial environment.

This product is tested to meet Council Directive 73/23/EECLow Voltage, by applying the safety requirements of EN 61131–2Programmable Controllers, Part 2 – Equipment Requirements andTests.

For specific information required by EN 61131-2, see the appropriatesections in this publication, as well as the following Allen-Bradleypublications:

• Industrial Automation Wiring and Grounding Guidelines ForNoise Immunity, publication 1770-4.1

• Guidelines for Handling Lithium Batteries, publication AG-5.4

• Automation Systems Catalog, publication B111

Individual discrete I/O modules can also comply with various otheragency requirements when product or packaging is so marked.

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Refer to the following pages for detailed information about eachAllen-Bradley relay contact output module. This informationincludes:

• simplified schematic

• application notes

• connection diagram

• driving an input module with an output module

• switch and jumper settings

• specifications

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18 Selectable Relay Contact Output Module (Cat. No. 1771-OW16 Series B)

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19 Selectable Relay Contact Output Module (Cat. No. 1771-OWN)

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20 Selectable Relay Contact Output Module (Cat. No. 1771-OWN)

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21 Relay Contact Output Module (Cat. No. 1771-OWNA)

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22 Relay Contact Output Module (Cat. No. 1771-OWNA)

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(41=8-7 5>>5;-?5:9 77 =17-D> $ ()4=77 =17-D> $# ()4= 8-C

-/6;7-91 @==19? 8-C58@8 9:859-7

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>D>?18 71A17 59>?-77-?5:9 8-9@-7

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!8</ 87<+-<; ;28?7 37 !"-87031=:+<387 08: ;36953-3<A

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23 Power Relay Contact Output Module (Cat. No. 1771-OX)

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24 Power Relay Contact Output Module (Cat. No. 1771-OX)

#>,53-+=387 D %/9=/6,/;

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#8@/; $+=371 (

"7<=+=/ 87=+-= $/<3<=+7-/ 826< 6+A36>6

"9/;+=/$/5/+</ &36/ 6< 6+A36>6

#8@/; 3<<39+=387 )+==< 6+A )+==< 637

&2/;6+5 3<<39+=387 &'2; 6+A &'2; 637

+-495+7/ >;;/7= 6 6+A36>6

<85+=387 (85=+1/ ( +- ;6<

87.>-=8;< )3;/ %3C/

+=/18;B

1+>1/ 66 <=;+7./. 6+A36>6 37-2 66 37<>5+=387 6+A36>6

7?3;876/7=+5 87.3=387<"9/;+=371 &/69/;+=>;/%=8;+1/ &/69/;+=>;/$/5+=3?/ >63.3=B

=8 8 =8 8 =8 8 =8 8

=8 @3=28>= -87./7<+=387

/B371 /=@//7 +7. /=@//7 +7.

></ ( &B9/ %58 58@ 9/; -3;->3=><<6+7 % 3==/50></

3/5. )3;371 ;6 D)

)3;371 ;6 %-;/@ &8;:>/ D 37-2D98>7.<

1/7-B /;=303-+=387@2/7 9;8.>-= 8; 9+-4+1371 3<6+;4/.

• % -/;=303/.

• % 5+<< 3?3<387 ;8>9< -/;=303/.

• ' 53<=/.

• 6+;4/. 08; +55 +9953-+,5/ .3;/-=3?/<

7<=+55+=387 +=+ D

*8> ></ =23< -87.>-=8; -+=/18;B 3708;6+=387 08; 95+77371 -87.>-=8; ;8>=371 +<

./<-;3,/. 37 =2/ <B<=/6 5/?/5 37<=+55+=387 6+7>+5

""!"!

# #

#$ #$

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25 0-24V Relay Contact Output Module (Cat. No. 1771-OYL)

9(1/)'8/43 > "+58+2(+6

')051'3+4-/)/6)9/86=

!+1'=6/:+6

42243985983*/)'846

%

462'11= 45+398598#4 3+<8 498598

3+<8 498598 /73462'11= )147+*

% ')

42243 *)

)89'1 ;/6/3- 6937 /3 8./7 */6+)8/43

98598

42243

42243

42243

42243

&49 )'3 97+ 8.+ >&24*91+ 84 *6/:+ '3 ') /3598 24*91+ 95 84 % ') #.+ >&24*91+ )'3 *6/:+ '3 /3598 4, 8.+ ,4114;/3- *) 24*91+7 >> > > >> > > > > ># >% '3* >%

#.+ >& 24*91+ .'7 3462'11=>45+3 462 '3* 3462'11=>)147+* 462 6+1'=7 985987 '6+ '66'3-+* /3 -64957 4, +'). -6495 ;/8. /87 4;3 )42243 '). 498598 /7 /7+1+)86/)'11= /741'8+* ,642 24*91+ 14-/) )/6)9/86= #.+ 24*91+ )'37/2918'3+4971= 7;/8). '11 4985987 84 7+5'6'8+ 14'*7 +').)43*9)8/3- ' 2'</292 14'* 4, 2 )438/394971= '8 6'8+*54;+6 14'*7 7;/8).+* (= 8.+ 24*91+7 7.491* .':+ ' 54;+6,')846 4,

4 348 '88+258 84 /3)6+'7+14'* )966+38 46 ;'88'-+ )'5'(/1/8= (+=43* 8.+ 6'8/3- (= )433+)8/3-8;4 46 246+ 4985987 /3 5'6'11+1 #.+ 71/-.8+78 :'6/'8/43 /3 4985986+1'= 7;/8)./3- 8/2+ 2'= )'97+ 43+ 7+8 4, 8.+ )438')87 84 7;/8).8.+ 848'1 14'* )966+38

% *)

>& 24*91+7 *4 348 )438'/3 796-+ 1/2/8/3-)/6)9/86= $7+ 8.+7+ 24*91+7 ,46 7;/8)./3- 6+7/78/:+ 14'*7 431=+- 1'257 /3*/)'8467 .+'8/3- +1+2+387 #.+= '6+ 3486+)422+3*+* ,46 /3*9)8/:+ 46 )'5')/8/:+ 14'*7 +- 2484678'68+67 741+34/*7 6+1'=7

38+63'1 )/6)9/87 /+1* )433+)8/437

98598+:/)+

98598+:/)+

!-/ 534

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26 0-24V Relay Contact Output Module (Cat. No. 1771-OYL)

%@.75/-?5:9 F '1;?18.1=

"

$@?;@?> ;1= ":0@71 3=:@;> :2

":0@71 !:/-?5:9 $ /4->>5>

:9?-/? :9253@=-?5:9 :=8 #$ :=8 #

*:7?-31 &-?593 * -/ =8> * 0/

@==19? &-?593 8 ;1= :@?;@? 8-C58@8

'@=31 @==19? 8 8-C58@8 ;1= :@?;@?

-? =-?10 ;:B1=

%:B1= &-?593 0/ + ;1= :@?;@? =1>5>?5A1-/ >@;;=1>>10 + ;1= :@?;@? =1>5>?5A1

"5958@8 :9?-/? !:-0 0/ 8 *-/ 8 *

$;1=-?1&171->1 (581 8> 8-C58@8

:@9/1 (581 8> 8-C58@8

'B5?/4593 =1<@19/D E 8-C58@8

%:B1= 5>>5;-?5:9 +-??> 8-C +-??> 859

(41=8-7 5>>5;-?5:9 ()4= 8-C ()4= 859

-/6;7-91 @==19? 8 8-C58@8

>:7-?5:9 *:7?-31 * .1?B119 :;19 /:9?-/?>* .1?B119 /:57 -90 /:9?-/?

:90@/?:=> +5=1 '5E1

-?13:=D

3-@31 88 >?=-9010 8-C58@8 59/4 88 59>@7-?5:9 8-C58@8

9A5=:9819?-7 :905?5:9>$;1=-?593 (18;1=-?@=1'?:=-31 (18;1=-?@=1&17-?5A1 @8505?D

?: : ?: : ?: : ?: :

?: B5?4:@? /:9019>-?5:9

1D593 1?B119 -90 1?B119 -90

5170 +5=593 =8 F+

+5=593 =8 '/=1B (:=<@1 F 59/4F;:@90>

319/D 1=?525/-?5:9B419 ;=:0@/? := ;-/6-3593 5>8-=610

• ' /1=?52510

• ' 7->> 5A5>5:9 =:@;> /1=?52510

• )! 75>?10

• 8-=610 2:= -77 -;;75/-.71 05=1/?5A1>

9>?-77-?5:9 -?- F

';561> ;1-6> -90 >@=31> 8@>? .1 B5?459 ?41 ;:B1= =-?593 &1>5>?5A1 7:-0> :97D -/ := 0/ ;:B1= +

8-C58@8 '@=31 7585?593 /5=/@5?=D 5> 9:? ;=:A5010 59 ?41 8:0@71 := =175-.71 :;1=-?5:9 ?41 @>1 8@>? 19>@=1 ?4-?

>@=31> 0: 9:? 1C/110 15?41= ?41 A:7?-31 := /@==19? =-?593 :2 ?41 8:0@71 ,:@ @>1 ?45> /:90@/?:= /-?13:=D 592:=8-?5:9 2:= ;7-99593 /:90@/?:= =:@?593 -> 01>/=5.10 59 ?41 >D>?18

71A17 59>?-77-?5:9 8-9@-7

27 0-24V Relay Contact Output Module (Cat. No. 1771-OZL)

:)20*(9054 ? ",69,3),7

(*162(4,5.0*07*:097>

!,2(>70;,7

53354:96:94+0*(957

%

573(22>56,4:96:9

#5 4,=9 5:96:94,=9 5:96:9 084573(22> 56,4

% (*

53354 +*

*9:(2 <0704. 7:48 04 9/08 +07,*9054

:96:9

53354

53354

53354

53354

#/, ?' 35+:2, /(8 4573(22>?56,4 573 7,2(>8#/, 5:96:98 (7, (77(4.,+ 04 .75:68 5- ,(*/ <09/ 0985<4 *53354 (*/ 5:96:9 08 ,2,*970*(22> 0852(9,+ -753 35+:2,25.0* *07*:097> #/, 35+:2, *(4 803:29(4,5:82> 8<09*/ (22 5:96:98 95 8,6(7(9, 25(+8 ,(*/ *54+:*904. ( 3(=03:3 25(+ 5-3 *54904:5:82> (9 7(9,+ 65<,7 25(+8 8<09*/,+ )> 9/,35+:2,8 8/5:2+ /(;, ( 65<,7 -(*9575-

5 459 (99,369 9504*7,(8, 25(+ *:77,49 57 <(99(., *(6()0209> ),>54+ 9/, 7(904.)> *544,*904. 9<5 57 357, 5:96:98 04 6(7(22,2#/, 820./9,89;(70(9054 04 5:96:9 7,2(> 8<09*/04. 903, 3(> *(:8, 54, 8,9 5-9/, *549(*98 95 8<09*/ 9/, 959(2 25(+ *:77,49

% +*

?' 35+:2,8 +5 459 *549(04 8:7., 2030904.*07*:097> $8, 9/,8, 35+:2,8 -57 8<09*/04. 7,80890;, 25(+8 542>,. 2(368 04+0*(9578 /,(904. ,2,3,498 #/,> (7, 4597,*533,4+,+ -57 04+:*90;, 57 *(6(*090;, 25(+8 ,. 3595789(79,78 852,450+8 7,2(>8

0,2+ *544,*9054849,74(2 *07*:098

&5: *(4 :8, 9/, ?'35+:2, 95 +70;, (4 (* 046:9 35+:2, :6 95 % (* #/,?& 35+:2, *(4 +70;, (4 046:9 5- 9/, -5225<04. +*35+:2,8 ? ? ? ? ?? ? ? ? ? ?# ?% (4+ ?%

:96:9,;0*,

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28 0-24V Relay Contact Output Module (Cat. No. 1771-OZL)

$@.75/-?5:9 F &1;?18.1=

"

#@?;@?> ;1= !:0@71 3=:@;> :2

!:0@71 :/-?5:9 # /4->>5>

:9?-/? :9253@=-?5:9 :=8 "#

):7?-31 %-?593 ) -/ =8> ) 0/

@==19? %-?593 8 ;1= :@?;@? 8-C58@8

&@=31 @==19? 8 8-C58@8 ;1= :@?;@?

-? =-?10 ;:B1=

$:B1= %-?593 0/ * ;1= :@?;@? =1>5>?5A1-/ >@;;=1>>10 * ;1= :@?;@? =1>5>?5A1

!5958@8 :9?-/? :-0 0/ 8 )-/ 8 )

#;1=-?1%171->1 '581 8> 8-C58@8

:@9/1 '581 8> 8-C58@8

&B5?/4593 =1<@19/D E 8-C58@8

$:B1= 5>>5;-?5:9 *-??> 8-C *-??> 859

'41=8-7 5>>5;-?5:9 '(4= 8-C '(4= 859

-/6;7-91 @==19? 8 8-C58@8

>:7-?5:9 ):7?-31 ) .1?B119 :;19 /:9?-/?>) .1?B119 /:57 -90 /:9?-/?

:90@/?:=> *5=1 &5E1

-?13:=D

3-@31 88 >?=-9010 8-C58@8 59/4 88 59>@7-?5:9 8-C58@8

9A5=:9819?-7 :905?5:9>#;1=-?593 '18;1=-?@=1&?:=-31 '18;1=-?@=1%17-?5A1 @8505?D

?: : ?: : ?: : ?: :

?: B5?4:@? /:9019>-?5:9

1D593 1?B119 -90 1?B119 -90

5170 *5=593 =8 F*

*5=593 =8 &/=1B ':=<@1 F 59/4F;:@90>

319/D 1=?525/-?5:9B419 ;=:0@/? := ;-/6-3593 5>8-=610

• & /1=?52510

• & 7->> 5A5>5:9 =:@;> /1=?52510

• ( 75>?10

• 8-=610 2:= -77 -;;75/-.71 05=1/?5A1>

9>?-77-?5:9 -?- F

&;561> ;1-6> -90 >@=31> 8@>? .1 B5?459 ?41 ;:B1= =-?593 %1>5>?5A1 7:-0> :97D

-/ := 0/ ;:B1= * 8-C &@=31 7585?593 /5=/@5?=D 5> 9:? ;=:A5010 59 ?41 8:0@71 := =175-.71 :;1=-?5:9 ?41 @>1= 8@>? 19>@=1 ?4-?

>@=31> 0: 9:? 1C/110 15?41= ?41 A:7?-31 := /@==19? =-?593 :2 ?41 8:0@71 +:@ @>1 ?45> /:90@/?:= /-?13:=D 592:=8-?5:9 2:= ;7-99593 /:90@/?:= =:@?593 -> 01>/=5.10 59 ?41 >D>?18

71A17 59>?-77-?5:9 8-9@-7

29 Related Publications

2$*)%#1)-, 6 '.1'+$'/

You can refer to the following publications for more informationabout Allen-Bradley relay contact modules and other Allen-Bradleydiscrete I/O modules:

+-&2*''*'%1#$*' -,1#%1 21.21 -&2*' %#1,- ,01#**#1)-, #1#

+-&2*''*'%1#$*' -,1#%1 21.21 -&2*' %#1,- ,01#**#1)-, #1#

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+-&2*'-,1#%1 21.21 -&2*' %#1 ,- ,01#**#1)-, #1#

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! +-&2*' -,1#%1 21.21 -&2*' %#1 ,-! ,01#**#1)-, #1#

" +-&2*' -,1#%1 21.21 -&2*' %#1 ,-" ,01#**#1)-, #1#

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,)3'/0#* )0%/'1' -&2*'0'*'%1)-, 2)&'

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**',6/#&*'5 #,#*-( +-&2*'0

,#*-( -&2*'0 /-&2%1 #1#

30 Notes

31 Support Services

At Allen-Bradley, customer service means experiencedrepresentatives at Customer Support Centers in key cities throughoutthe world for sales service and support. Our value-added servicesinclude:

• SupportPlus programs

• telephone support and 24-hour emergency hotline

• software and documentation updates

• technical subscription services

• application engineering assistance

• integration and start-up assistance

• field service

• maintenance support

• lecture and lab courses

• self-paced computer and video-based training

• job aids and workstations

• training needs analysis

• your only “authorized” source

• current revisions and enhancements

• worldwide exchange inventory

• local support

PLC is a registered trademark of Allen-Bradley Company, Inc.

PLC-2 is a trademark of Allen-Bradley Company, Inc.

PLC-3 is a trademark of Allen-Bradley Company, Inc.

PLC-5 is a trademark of Allen-Bradley Company, Inc.

SLC is a trademark of Allen-Bradley Company, Inc.

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