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1734-SSI | Allen-Bradley POINT I/O Single-Channel SSI Absolute Encoder Interface Module
- Regular price
- $189.00
- Sale price
- $189.00
- Regular price
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Product Description P/N: 1734-SSI
Description
The Allen-Bradley 1734-SSI is a single-channel Serial Synchronous Interface (SSI) module used to acquire position data from absolute encoders. This POINT I/O module operates across a 10–28.8VDC supply range and supports multiple SSI data rates for flexible integration. The 1734-SSI provides reliable high-resolution encoder data capture for motion and positioning applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | SSI Module |
| Part Number | 1734-SSI |
| Subcategory | POINT I/O |
| Series | POINT I/O |
| Module Type | SSI absolute encoder module |
| Supported Protocol | SSI (RS422) |
| SSI Channels | 1 channel |
| Supply Voltage | 10–28.8 VDC |
| POINTBus Current | 110 mA @ 5VDC |
| Supply Current | 110 mA @ 24VDC |
| Power Dissipation | 0.94 W |
| SSI Data Rates | 125 kHz, 250 kHz, 500 kHz, 1 MHz, 2 MHz |
| SSI Bits per Word | 2–31 bits |
| SSI Word Length | 4 bytes (32 bits) |
| SSI Word Delay Time | 16 µs to 64 ms |
| Encoding Support | Gray or binary code with conversion |
| Comparator Functions | 2 SSI word comparator values |
| Word Latching | Supported with I1 input |
| Isolation Voltage | 50 V continuous, 1250 V for 60 seconds |
| Operating Temperature | −20 to 55 °C (−4 to 131 °F) |
| Storage Temperature | −40 to 85 °C (−40 to 185 °F) |
| Relative Humidity | 5–95% non-condensing |
| Input Impedance | 3.6 kΩ (max 4.7 kΩ) |
| On-State Current | 4–5 mA @ 24VDC |
| Off-State Voltage | 19–24 VDC |
| Cable Certification | UL CM/AWM |
| Max Cable Length | 320 m @ 125 kHz, 8 m @ 2 MHz |
| Mounting Base | 1734-TB or 1734-TBS (key position 2) |
| Dimensions | 56 × 12 × 75.5 mm (H × W × L) |
| Shock Rating | 30 g operating |
| Vibration Rating | 5 g, 10–500 Hz |
| Enclosure Type | Open-style |
Information About 1734-SSI
The 1734-SSI is part of the Allen-Bradley POINT I/O product family, designed to interface with industrial absolute encoders using the standard SSI protocol. It features a compact open-style construction and requires a 1734-TB or 1734-TBS wiring base with key switch position 2 for proper installation. The module supports RS422 physical signaling, variable SSI word lengths, and options for gray or binary encoding formats to ensure compatibility with diverse encoder types. Typical usage includes linear or rotary position sensing, where technologies such as SSI word latching, comparator values, and multiple supported data rates enhance precision and application flexibility.
Key Features
- Single SSI channel: Designed to read one absolute encoder using the SSI protocol.
- Wide input voltage range: Operates from 10–28.8VDC to match common industrial encoder supplies.
- Multiple SSI data rates: Supports 125 kHz, 250 kHz, 500 kHz, 1 MHz, and 2 MHz communication speeds.
- Configurable word length: Handles SSI formats from 2 to 31 bits and 4-byte word structures.
- Gray or binary code support: Includes gray-to-binary conversion and increasing/decreasing count interpretation.
- Word latching and comparators: Provides two comparator values and input-triggered SSI word latching.
- Compact POINT I/O design: Mounts using 1734-TB or 1734-TBS terminal bases at key position 2.
- Environment-tolerant operation: Functions within −20 to 55 °C and withstands industrial vibration and shock.
The 1734-SSI delivers the reliability and precision required for accurate position feedback in motion and automation control systems.
Description
The Allen-Bradley 1734-SSI is a single-channel Serial Synchronous Interface (SSI) module used to acquire position data from absolute encoders. This POINT I/O module operates across a 10–28.8VDC supply range and supports multiple SSI data rates for flexible integration. The 1734-SSI provides reliable high-resolution encoder data capture for motion and positioning applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen-Bradley |
| Category | SSI Module |
| Part Number | 1734-SSI |
| Subcategory | POINT I/O |
| Series | POINT I/O |
| Module Type | SSI absolute encoder module |
| Supported Protocol | SSI (RS422) |
| SSI Channels | 1 channel |
| Supply Voltage | 10–28.8 VDC |
| POINTBus Current | 110 mA @ 5VDC |
| Supply Current | 110 mA @ 24VDC |
| Power Dissipation | 0.94 W |
| SSI Data Rates | 125 kHz, 250 kHz, 500 kHz, 1 MHz, 2 MHz |
| SSI Bits per Word | 2–31 bits |
| SSI Word Length | 4 bytes (32 bits) |
| SSI Word Delay Time | 16 µs to 64 ms |
| Encoding Support | Gray or binary code with conversion |
| Comparator Functions | 2 SSI word comparator values |
| Word Latching | Supported with I1 input |
| Isolation Voltage | 50 V continuous, 1250 V for 60 seconds |
| Operating Temperature | −20 to 55 °C (−4 to 131 °F) |
| Storage Temperature | −40 to 85 °C (−40 to 185 °F) |
| Relative Humidity | 5–95% non-condensing |
| Input Impedance | 3.6 kΩ (max 4.7 kΩ) |
| On-State Current | 4–5 mA @ 24VDC |
| Off-State Voltage | 19–24 VDC |
| Cable Certification | UL CM/AWM |
| Max Cable Length | 320 m @ 125 kHz, 8 m @ 2 MHz |
| Mounting Base | 1734-TB or 1734-TBS (key position 2) |
| Dimensions | 56 × 12 × 75.5 mm (H × W × L) |
| Shock Rating | 30 g operating |
| Vibration Rating | 5 g, 10–500 Hz |
| Enclosure Type | Open-style |
Information About 1734-SSI
The 1734-SSI is part of the Allen-Bradley POINT I/O product family, designed to interface with industrial absolute encoders using the standard SSI protocol. It features a compact open-style construction and requires a 1734-TB or 1734-TBS wiring base with key switch position 2 for proper installation. The module supports RS422 physical signaling, variable SSI word lengths, and options for gray or binary encoding formats to ensure compatibility with diverse encoder types. Typical usage includes linear or rotary position sensing, where technologies such as SSI word latching, comparator values, and multiple supported data rates enhance precision and application flexibility.
Key Features
- Single SSI channel: Designed to read one absolute encoder using the SSI protocol.
- Wide input voltage range: Operates from 10–28.8VDC to match common industrial encoder supplies.
- Multiple SSI data rates: Supports 125 kHz, 250 kHz, 500 kHz, 1 MHz, and 2 MHz communication speeds.
- Configurable word length: Handles SSI formats from 2 to 31 bits and 4-byte word structures.
- Gray or binary code support: Includes gray-to-binary conversion and increasing/decreasing count interpretation.
- Word latching and comparators: Provides two comparator values and input-triggered SSI word latching.
- Compact POINT I/O design: Mounts using 1734-TB or 1734-TBS terminal bases at key position 2.
- Environment-tolerant operation: Functions within −20 to 55 °C and withstands industrial vibration and shock.
The 1734-SSI delivers the reliability and precision required for accurate position feedback in motion and automation control systems.