FLEX I/O is a trademark of Allen-Bradley Co. Inc.
Publication 1794-5.11 – November 1996
FLEX I/O
Remote I/O Adapter
(Cat. No. 1794-ASB Series B)
1
2
3
4, 5
6
7
8
9
Component Identification
1 Remote
I/O Adapter module
2 Indicators
3
Communication reset pushbutton (PRL)
4
Access door to switches S1 and S2
5
Switches S1 and S2 (behind access door)
6
Remote I/O cable connector
7 +24V dc connections
8
24V common connections
9
Flexbus connector
Installation Instructions
FLEX I/O Remote I/O Adapter2
Publication 1794-5.11 – November 1996
European
Union Directive Compliance
If this product has the CE mark it is approved for installation within the
European Union and EEA regions. It has been designed and tested to meet
the following directives.
EMC Directive
This product is tested to meet Council Directive 89/336/EEC
Electromagnetic 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.
Low V
oltage Directive
This product is tested to meet Council Directive 73/23/EEC Low Voltage,
by applying the safety requirements of EN 61131–2 Programmable
Controllers, Part 2 – Equipment Requirements and Tests.
For specific information required by EN 61131-2, see the appropriate
sections in this publication, as well as the following Allen-Bradley
publications:
• Industrial Automation Wiring and Grounding Guidelines For Noise
Immunity, publication 1770-4.1
• Guidelines for Handling Lithium Batteries, publication AG-5.4
• Automation Systems Catalog, publication B111
FLEX I/O Remote I/O Adapter 3
Publication 1794-5.11 – November 1996
Mounting
on the DIN Rail
B
C
A
C
1. Position the remote I/O adapter module A on a 35 x 7.5mm DIN rail
B (A-B pt. no. 199-DR1; 46277-3; EN 50022) at a slight angle.
2. Hook the lip on the rear of the adapter (A) onto the top of the DIN rail
(B), and rotate the adapter module onto the rail.
3. Press the adapter module down onto the DIN rail until flush. Locking
tab (C) will snap into position and lock the adapter module to the DIN
rail.
4. If the adapter module does not lock in place, use a screwdriver or
similar device to move the locking tab down while pressing the
adapter module flush onto the DIN rail and release the locking tab to
lock the adapter module in place. If necessary, push up on the locking
tab to lock.
5. Connect the adapter wiring as shown under “Wiring” later in this
document.
NOTE: For Panel/Wall mounting, refer to publication 1794-5.13, “Panel
Mounting Kit, Cat. No. 1794-NM1.”
FLEX I/O Remote I/O Adapter4
Publication 1794-5.11 – November 1996
Wiring
1
SH
2
DF
G
E
20131
24V
COM
Allen-Bradley
24
VDC
POWER SUPPLY
RIO ADAPTER
1794–ASB2
ADAPTER
ACTIVE FAULT
LOCAL
FAULT
1. Connect the remote I/O cable to the removable remote I/O connector.
Connect To
Blue
Wire – RIO
1
Shield Wire – RIO
SH
Clear Wire – RIO
2
2. Connect +24V dc input to the left side of the lower connector,
terminal E.
3. Connect 24V common to the left side of the upper connector,
terminal D.
4. Connections G and F are used to pass 24V dc power (G) and 24V
common (F) to the next module in the series (if required).
FLEX I/O Remote I/O Adapter 5
Publication 1794-5.11 – November 1996
Set
the Adapter Switches
The adapter switches are located under a flip-open cover on the front of
the adapter. Set the switches as shown below.
87654321
87654321
ON
ON
S1
S2
Flip-open
cover
FLEX I/O Remote I/O Adapter6
Publication 1794-5.11 – November 1996
87654321
87654321
ON
ON
S1
S2
First
I/O
Group
I/O Rack
Number
Hold Last State
Processor Restart Lockout
Communication Rate
Reply Delay
Last Adapter
Hold Inputs
Reserved
First I/O Group
I/O Rack Number
S1–8 S1–7 Module group
S1–6 thru S1–1
ON ON 0
(1st)
Refer to the table on
page
OFF ON
2 (2nd)
Refer to the table on
page 7
ON OFF
4 (3rd)
OFF OFF
6 (4th)
S2–8 S2–7 Hold Inputs S2–6
Last Adapter
S2–5
Reply Delay
Reserved ON Hold
Inputs
ON
Not last
ON Off
OFF
Reset Inputs
OFF Last OFF On
Communication
Rate
Processor Restart
Lockout
Hold Last State
S2–4 S2–3 Bits/s S2–2 Processor: S2–1
Processor will:
ON ON 57.6k ON Restart ON Reset
Outputs
OFF ON 115.2k OFF
Locked Out
OFF
Hold last state
ON OFF 230.4k
OFF OFF 230.4k
FLEX I/O Remote I/O Adapter 7
Publication 1794-5.11 – November 1996
Rack Number S1 Switch Position
1747-SN
PLC–2 &
1771-SN
PLC–5 PLC–5/250 PLC–3
6 5 4 3 2 1
Rack 0 Rack 1
Not Valid
Rack 0 Rack 0
ON ON ON ON ON ON
Rack 1 Rack 2 Rack 1 Rack 1 Rack 1
OFF ON ON ON ON ON
Rack 2 Rack 3 Rack 2 Rack 2 Rack 2
ON OFF ON ON ON ON
Rack 3 Rack 4 Rack 3 Rack 3 Rack 3
OFF OFF ON ON ON ON
Rack 5 Rack 4 Rack 4 Rack 4
ON ON OFF ON ON ON
Rack 6 Rack 5 Rack 5 Rack 5
OFF ON OFF ON ON ON
Rack 7 Rack 6 Rack 6 Rack 6
ON OFF OFF ON ON ON
Rack 7 Rack 7 Rack 7
OFF OFF OFF ON ON ON
Rack 10 Rack 10 Rack 10
ON ON ON OFF ON ON
Rack 1
1
Rack 1
1
Rack 1
1 OFF ON ON OFF ON ON
Rack 12 Rack 12 Rack 12
ON OFF ON OFF ON ON
Rack 13 Rack 13 Rack 13
OFF OFF ON OFF ON ON
Rack 14 Rack 14 Rack 14
ON ON OFF OFF ON ON
Rack 15 Rack 15 Rack 15
OFF ON OFF OFF ON ON
Rack 16 Rack 16 Rack 16
ON OFF OFF OFF ON ON
Rack 17 Rack 17 Rack 17
OFF OFF OFF OFF ON ON
Rack 20 Rack 20 Rack 20
ON ON ON ON OFF ON
Rack 21 Rack 21 Rack 21
OFF ON ON ON OFF ON
Rack 22 Rack 22 Rack 22
ON OFF ON ON OFF ON
Rack 23 Rack 23 Rack 23
OFF OFF ON ON OFF ON
Rack 24 Rack 24 Rack 24
ON ON OFF ON OFF ON
Rack 25 Rack 25 Rack 25
OFF ON OFF ON OFF ON
Rack 26 Rack 26 Rack 26
ON OFF OFF ON OFF ON
Rack 27 Rack 27 Rack 27
OFF OFF OFF ON OFF ON
Rack 30 Rack 30
ON ON ON OFF OFF ON
Rack 31 Rack 31
OFF ON ON OFF OFF ON
Rack 32 Rack 32
ON OFF ON OFF OFF ON
Rack 33 Rack 33
OFF OFF ON OFF OFF ON
Rack 34 Rack 34
ON ON OFF OFF OFF ON
Rack 35 Rack 35
OFF ON OFF OFF OFF ON
Rack 36 Rack 36
ON OFF OFF OFF OFF ON
Rack 37 Rack 37
OFF OFF OFF OFF OFF ON
Rack 40
ON ON ON ON ON OFF
Rack 41
OFF ON ON ON ON OFF
Rack 42
ON OFF ON ON ON OFF
Rack 43
OFF OFF ON ON ON OFF
Rack 44
ON ON OFF ON ON OFF
Rack 45
OFF ON OFF ON ON OFF
Rack 46
ON OFF OFF ON ON OFF
Rack 47
OFF OFF OFF ON ON OFF
Rack 50
ON ON ON OFF ON OFF
Rack 51
OFF ON ON OFF ON OFF
Rack 52
ON OFF ON OFF ON OFF
Rack 53
OFF OFF ON OFF ON OFF
Rack 54
ON ON OFF OFF ON OFF
FLEX I/O Remote I/O Adapter8
Publication 1794-5.11 – November 1996
S1 Switch Position
Rack Number
123456
PLC–3PLC–5/250PLC–5
PLC–2 &
1771-SN
1747-SN
Rack 55
OFF ON OFF OFF ON OFF
Rack 56
ON OFF OFF OFF ON OFF
Rack 57
OFF OFF OFF OFF ON OFF
Rack 60
ON ON ON ON OFF OFF
Rack 61
OFF ON ON ON OFF OFF
Rack 62
ON OFF ON ON OFF OFF
Rack 63
OFF OFF ON ON OFF OFF
Rack 64
ON ON OFF ON OFF OFF
Rack 65
OFF ON OFF ON OFF OFF
Rack 66
ON OFF OFF ON OFF OFF
Rack 67
OFF OFF OFF ON OFF OFF
Rack 70
ON ON ON OFF OFF OFF
Rack 71
OFF ON ON OFF OFF OFF
Rack 72
ON OFF ON OFF OFF OFF
Rack 73
OFF OFF ON OFF OFF OFF
Rack 74
ON ON OFF OFF OFF OFF
Rack 75
OFF ON OFF OFF OFF OFF
Rack 76
ON OFF OFF OFF OFF OFF
Not Valid OFF OFF OFF OFF OFF OFF
Rack address 77 is an illegal configuration.
PLC-5/1
1 processors can scan rack 03.
PLC-5/15 and PLC-5/20 processors can scan racks 01–03.
PLC-5/25 and PLC-5/30 processors can scan racks 01–07.
PLC-5/40 and PLC-5/40L processors can scan racks 01–17.
PLC-5/60 and PLC-5/60L processors can scan racks 01–27.
PLC-5/80 processors can scan racks 01–27.
PLC-5/250 processors can scan racks 00–37.
FLEX I/O Remote I/O Adapter 9
Publication 1794-5.11 – November 1996
1794-ASB
Specifications
I/O
Capacity
8 modules
Power Supply
Note:
In order to comply with CE Low V
oltage
Directives, you must use a Safety Extra Low
V
oltage (SEL
V) or a Protected Extra Low
V
oltage (PELV) power supply to power this
adapter.
Input V
oltage Rating
24V dc nominal
Input Voltage Range
19.2V to 31.2V dc (includes 5% ac ripple)
Communication Rate
57.6k bps
1
15.2k bps
230.4k bps
Indicators
Adapter Active – green
Adapter fault – red
Local fault – red
Flexbus Output Current
640mA maximum
Isolation Voltage
100% tested at 850V dc for 1s between user
power and flexbus
Power Consumption
450mA maximum from external 24V supply
Power Dissipation
4.6W maximum @ 31.2V dc
Thermal Dissipation
15.7 BTU/hr @ 31.2V dc
Environmental Conditions
Operational T
emperature
Storage T
emperature
Relative Humidity
Shock Operating
Non-operating
Vibration
0 to 55
o
C (32 to 131
o
F)
–40 to 85
o
C (–40 to 185
o
F)
5 to 95% noncondensing
30 g peak acceleration, 1
1(+
1)ms pulse width
50 g peak acceleration, 1
1(+
1)ms pulse width
T
ested 5 g @ 10–500Hz per IEC 68-2-6
Remote I/O Cable
Belden 9463 or equivalent as specified in
publication ICCG-2.2
Power Conductors
Wire Size
Category
12 gauge (4mm
2
) stranded maximum
3/64 inch (1.2mm) insulation max.
2
1
Specifications continued on next page
FLEX I/O Remote I/O Adapter10
Publication 1794-5.11 – November 1996
1794-ASB
Specifications
Agency
Certification
(when product or packaging is
marked)
•
CSA certified
• CSA Class I, Division 2
Groups A, B, C, D certified
•
UL listed
•
CE marked for all applicable directives
User Manual
Publication 1794-6.5.3
1 Use
this conductor category information for planning conductor routing. Refer to publication
1770-4.1, “Industrial Automation Wiring and Grounding Guidelines.”
FLEX I/O Remote I/O Adapter 11
Publication 1794-5.11 – November 1996
Mounting
Dimensions
Inches
(Millimeters)
3.4
(87)
3.2
(80)
2.7
(68)
.83 (21)
1794-ASB
3.4H x 2.7W x 2.7D
(87H x 68W x 69D)
1.4
(35)
A
2.3
(59)
A
=
Mounting hole dimensions for optional mounting kit
B
B
= DIN rail
2.0
(50)
1.2
(28)
C
C
= Secure DIN rail approximately every 200mm
FLEX I/O Remote I/O Adapter12
Publication 1794-5.11 – November 1996
With major offices worldwide.
World
Headquarters,
Allen-Bradley
,
1201 South Second Street,
Milwaukee, WI 53204 USA,
T
el: (1) 414 382-2000 Fax: (1) 414 382-4444
Publication 1794-5.1
1 – November 1996
Supersedes
publication 1794-2.11 – December 1995
PN955127–31
Copyright 1995 Allen-Bradley Company, Inc. Printed in USA
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Allen-Bradley 1794ASB Series B Installation Instructions Manual
- Tüüp
- Installation Instructions Manual
- See käsiraamat sobib ka
teistes keeltes
- English: Allen-Bradley 1794ASB Series B
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