
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.
| Request Exact-Model Quote | sales@amikon.cn | WhatsApp 86-18020776792 |
| Sales manager: Miya zheng | ||
| 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 |
| 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 |
| Confirm Compatibility with Miya | sales@amikon.cn | WhatsApp 86-18020776792 |
| Sales manager: Miya zheng | ||
| GLOBAL COOPERATION | INSPECTION COORDINATION | URGENT INTERNATIONAL DELIVERY |
| Check Price and Availability | sales@amikon.cn | WhatsApp 86-18020776792 |
| Sales manager: Miya zheng | ||
| 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.
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