PRODUCT INFORMATION
Product Overview
Revision scope: These specifications describe 1747-L553/A (Series A). Check the corresponding technical data before specifying another hardware series.
The Allen-Bradley 1747-L553 is a Controller Module for the SLC 500 system family. This SLC 5/05 processor contains 64K words of user memory. Memory allocation includes 60K words for program or data and 4K words for data only. The typical execution scan time is 0.9 milliseconds per kiloword. The typical I/O scan time is 0.225 milliseconds.
Standard communication interfaces include a 10/100 Mbps Ethernet port and an RS-232 serial port. The RS-232 port operates up to 19.2 Kbaud with DH-485, DF1, and ASCII protocols. The module addresses up to 4,096 inputs, 4,096 outputs, and 480 local analog points. Standard memory retention uses battery-backed CMOS RAM with Flash EEPROM support. The unit supports up to 3 local I/O chassis across 30 module slots.
TECHNICAL DATA
Technical Specifications
These specifications describe 1747-L553/A (Series A). Check the corresponding technical data before specifying another hardware series.
| Parameter | Specification |
|---|
| Specification | Value |
|---|
| User Memory | 64K Words total (60K data/program + 4K data only) |
|---|
| Digital I/O Capacity | 4,096 Inputs / 4,096 Outputs (8,192 max); 480 Local Analog I/O |
|---|
| Communication Ports | Ethernet 10/100 Mbps (EtherNet/IP); RS-232 (DH-485, DF1, ASCII) up to 19.2 Kbaud |
|---|
| Backplane Current Draw | 1,000 mA at 5V DC; 175 mA at 24V DC |
|---|
| Program Scan Time | 0.9 ms/K (typical); I/O scan time 0.225 ms (typical) |
|---|
| Max Local Chassis / Slots | 3 local I/O chassis / 30 module slots |
|---|
| Operating Temperature | 0 to 60 °C (32 to 140 °F) |
|---|
| Backup Memory | Flash EEPROM; battery-backed CMOS RAM standard |
|---|
TECHNICAL INFORMATION
Order Information
| Revision Part # | Also known as | Reference Price |
|---|
| 1747-L553 Ser A | 1747-L553/A, Series A | |
| 1747-L553 Ser B | 1747-L553/B, Series B | USD 2,467.00, indicative (Used/Refurbished) |
| 1747-L553 Ser C | 1747-L553/C, Series C | |
| 1747-L553 Ser D | 1747-L553/D, Series D | |
Reference prices are observed third-party market prices for the stated revision, not a final Aituos quotation.
TECHNICAL INFORMATION
Features
- Total user memory of 64K words divided into 60K program/data and 4K data only.
- Integrated 10/100 Mbps Ethernet port supporting EtherNet/IP communications.
- RS-232 serial interface supporting DH-485, DF1, and ASCII protocols up to 19.2 Kbaud.
- System addressing capacity of up to 8,192 digital I/O and 480 local analog I/O.
- Standard memory retention via battery-backed CMOS RAM with Flash EEPROM backup.
- Program execution scan time of 0.9 milliseconds per kiloword.
TECHNICAL INFORMATION
Connections / Interfaces
- One Ethernet port supporting 10/100 Mbps EtherNet/IP communication.
- One RS-232 serial communication port supporting speeds up to 19.2 Kbaud.
- RS-232 channel compatible with DH-485, DF1, and ASCII communication protocols.
TECHNICAL INFORMATION
Installation Guidelines
- The controller draws 1,000 mA at 5V DC from the chassis backplane.
- The module draws 175 mA at 24V DC from the backplane.
- Maintain an ambient operating temperature between 0 and 60 °C (32 to 140 °F).
- Local hardware configurations accommodate up to 3 local I/O chassis.
TECHNICAL INFORMATION
Compatibility
- Compatible with SLC 500 systems supporting up to 3 local I/O chassis.
- Addresses up to 30 module slots within local chassis configurations.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with SLC 500 systems supporting up to 3 local I/O chassis. Addresses up to 30 module slots within local chassis configurations.
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 is the memory capacity of the Allen-Bradley 1747-L553?
The 1747-L553 provides 64K words of user memory, including 60K program/data words and 4K data-only words.
What communication interfaces does the 1747-L553 support?
The module includes a 10/100 Mbps Ethernet port and an RS-232 port supporting up to 19.2 Kbaud.
What is the maximum local I/O capacity for the 1747-L553?
The controller supports up to 8,192 digital I/O, 480 local analog points, and 30 module slots.
What are the electrical power requirements from the backplane?
The unit draws 1,000 mA at 5V DC and 175 mA at 24V DC from the backplane.
