PRODUCT INFORMATION
Product Overview
The Allen-Bradley SST-ESR2-CPX-P is an in-chassis communication module for the CompactLogix series. It integrates directly into the 1769 Compact I/O bus architecture. The unit provides one Ethernet port supporting speeds of 10/100 Mbps using an RJ45 connection. It operates with Modbus TCP and UDP industrial network protocols.
This module features two serial ports configured for RS-232, RS-422, and RS-485 interfaces. Each serial port handles up to 256 commands for plant floor networking. The internal memory accommodates 32,000 words of input and output I/O data. Diagnostic LEDs provide real-time status indication for OK, STATE, LINK, SPEED, SD, and FAULT.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Weight | 2.00 lbs (0.91 kg) |
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| Module Type | In-chassis Communication Module |
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| Backplane Compatibility | 1769 Compact I/O Bus |
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| Ethernet Port | 1 x 10/100 Mbps RJ45 Port |
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| Serial Ports | 2 x RS-232 / RS-422 / RS-485 |
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| Serial Connectors | RJ45 |
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| Ethernet Protocols | Modbus TCP/UDP |
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| Commands per Port | 256 Commands |
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| I/O Data Capacity | 32,000 words for input, output |
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| Configuration Tool | SST Configuration Console |
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| Status Indicators | LEDs: OK, STATE, LINK, SPEED, SD, FAULT |
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| Installation Altitude | 1000 m |
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TECHNICAL INFORMATION
Features
- Provides one 10/100 Mbps RJ45 Ethernet port.
- Supports Modbus TCP and Modbus UDP communication protocols.
- Includes two serial channels configurable for RS-232, RS-422, and RS-485.
- Processes up to 256 commands per serial port.
- Supplies an internal capacity of 32,000 words for input and output.
- Mounts directly to the 1769 Compact I/O backplane.
- Features diagnostic LEDs for OK, STATE, LINK, SPEED, SD, and FAULT.
TECHNICAL INFORMATION
Connections / Interfaces
- One RJ45 Ethernet port supports 10/100 Mbps transmission.
- Two RJ45 serial ports support RS-232, RS-422, and RS-485 signals.
- Direct connection to the 1769 Compact I/O backplane bus.
TECHNICAL INFORMATION
Installation Guidelines
- Install the unit into a compatible 1769 Compact I/O backplane slot.
- The module operates at altitudes up to 1000 meters above sea level.
- Verify all RJ45 Ethernet and serial cable terminations prior to powering up.
TECHNICAL INFORMATION
Configuration Guidelines
- Configure parameters using the SST Configuration Console utility.
- Define serial port protocols and command lists through the console interface.
- Assign Modbus register mappings within the 32,000-word input and output tables.
TECHNICAL INFORMATION
Compatibility
- Compatible with systems using the 1769 Compact I/O Bus.
- Interacts with Modbus TCP, Modbus UDP, RS-232, RS-422, and RS-485 networks.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with systems using the 1769 Compact I/O Bus. Interacts with Modbus TCP, Modbus UDP, RS-232, RS-422, and RS-485 networks.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What protocols does the SST-ESR2-CPX-P communication module support?
The SST-ESR2-CPX-P supports Modbus TCP and UDP via Ethernet, plus RS-232, RS-422, and RS-485 serial communication.
Which software tool is used to configure the SST-ESR2-CPX-P?
The module is configured using the dedicated SST Configuration Console.
What is the I/O data memory capacity of the SST-ESR2-CPX-P?
The module supports up to 32,000 words of data capacity for input and output.
