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Allen-Bradley 1771-SN legacy Sub I/O Scanner Module

Allen-Bradley 1771-SN legacy Sub I/O Scanner Module

 
 
AMIKON LIMITED   /   PLC REMOTE I/O
1771-SN
Allen-Bradley Sub I/O Scanner Module
01   Remote Sub I/O scanning
02   Selectable 57.6 / 115.2 kbit/s rates
03   Designed for compatible remote I/O systems
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1771 ARCHITECTURE / REMOTE I-O

1771-SN

SUB I/O SCANNER / PLC-5 / 1771

The 1771-SN is a 1771 chassis Sub I/O Scanner that links a compatible block-transfer-capable processor to remote I/O adapters. It is intended for classic Allen-Bradley Remote I/O architectures using discrete-transfer adapters.

01 / PRODUCT DETAILS
Product Identification
1771-SN - PLC-5 / 1771 Remote I/O
The 1771-SN is a 1771 chassis Sub I/O Scanner that links a compatible block-transfer-capable processor to remote I/O adapters. It is intended for classic Allen-Bradley Remote I/O architectures using discrete-transfer adapters.
02 / PRODUCT DETAILS
Functional Description
The module scans assigned remote racks, transfers discrete I/O data and uses processor block transfers for its control and status interface. Correct rack numbers, starting groups, rack sizes, link rate, termination and ladder logic are essential to predictable operation.
03 / PRODUCT DETAILS
Technical Specifications
Module class Sub I/O scanner
Chassis platform Bulletin 1771
Processor requirement Block-transfer capability
Adapter requirement Discrete-transfer capability
Network role Scanner on a Remote I/O link
Complementary I/O Not supported
Configuration Hardware switches plus processor programming
Replacement control Series, revision, switch settings and rack addressing must match
04 / PRODUCT DETAILS
Compatibility & Related Models
CATALOG NUMBER RELATIONSHIP SELECTION POINT
1771-SN 1771 Sub I/O scanner Requested module
1747-SN SLC Remote I/O scanner Different chassis and programming platform
1771-ASB Remote I/O adapter Adapter role, not scanner role
1771-SDN DeviceNet scanner Different network protocol
05 / PRODUCT DETAILS
Model Comparison & Replacement Guide
Replacement rule: Match the complete catalog number, suffix, electrical rating, communication execution, connector arrangement, hardware series and firmware or processor requirements. A related family model is not automatically a direct substitute. Preserve settings and wiring records before removal, then complete controlled commissioning checks.
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06 / PRODUCT DETAILS
Technical FAQ
01
Can 1771-SN be installed with any processor?
Use a processor that supports the required block-transfer operation and the intended 1771 architecture.
02
Does 1771-SN support complementary I/O?
No. The module communicates with discrete-transfer-capable adapters and does not support complementary I/O.
03
Can 1747-SN replace 1771-SN?
No. It belongs to the SLC platform and differs in chassis, addressing and programming.
04
What must be captured before removing 1771-SN?
Record series and revision, switch positions, rack assignments, link rate, wiring polarity, termination and the associated ladder logic.
05
What causes an apparently healthy link with missing I/O?
Typical causes include rack-address overlap, incorrect starting group, wrong rack size, adapter switch mismatch or incomplete block-transfer programming.
CL6824X1-A2 12P0767X012 1747-M12 1746-NI8 1734-OE2CK MPL-A310F-HK22AA
33-0941D 571-200-20 80190-640-02-R 1756-ENET 2198-P070
YPQ202A YT204001-KB 171CCC76010 ES21714-014 MC-TDID52 51304441-275 BGS-DL10CN
KC4011X1-BZ1 086362-001 416NHM30030A D95574 S96080 1747-KFC15
NX-ID6142-5 TG111-HP3NZRL 289041 H19A 1756-BA1 81000-199-52-R
BMH1403P11A2A A393.CG-20 PK602HK001 1336F-BRF100-AE-EN 592WA-13ST
E3S-AD32 5X00300G02 1797-IE8H KRC1 69-000-398 01984-4080-0001
1018-75-011 2711P-T6M5D 6GK1900-0KB00-0AC0 A-4114-4150-01 851020-120VAC
1756-IM16I 1734 -IB8S DS100 DSN100 7ML1033-1AA00-2A SPS-DY150H 00-105-904
81003-438-51-R 140ACI03000C X20SLX910 6SE7090-0XX87-4AH0 81000-199-53-R
1326AB-B515E-S2K5L KPS-600/20-ESC 140ACO13000 HIEE400995R0002 UMB015BE02 3CB8260 C8737-1
CPC-115005 1756-OV16E KJ4006X1-BD1 A6735013A KC4011X1-BW1
08 / PRODUCT DETAILS
Ordering Information
Send the complete catalog number, hardware series or revision, quantity, condition requirement and delivery destination. For order concerns, contact us within seven days after receipt. Approved returns must remain in their original condition and include a clear reason. Return or replacement is arranged after inspection; shipping costs are borne by the buyer.
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