Product Description
The Allen-Bradley 1746-BAS is a single-slot Basic Language Module for SLC 500 systems, enabling data collection, report generation, and communication with HMIs, printers, modems, and other devices. It features two configurable serial ports (PRT1 and PRT2) supporting RS-232/423, RS-422, and RS-485 communication at speeds up to 19200 Baud, and a DH485 port (requiring a 1747-AIC adapter). Using PRT2 for DF1 or modem communication disables the DH485 port. The module has 24KB of battery-backed RAM, consumes minimal power, and supports a standard data transfer rate of 8 input/output words for SLC 5/01 processors and higher. It offers a user-friendly programming environment with debugging tools, flexible data storage, a built-in clock/calendar, an advanced text editor, and LED indicators for diagnostics. The 1746-BAS-T is a faster version with different memory options. It operates within a temperature range of 0 to 60 degrees Celsius and meets NEMA noise immunity standards, with a maximum communication distance of 1230 meters.
Is Your Device Showing These Signs?
The Allen Bradley 1746-BAS module commonly experiences issues related to program memory corruption, resulting in PLC faults and system downtime. Communication failures over the DH-485 network are traced to incorrect baud rate settings or faulty network cables. BASIC program errors, such as syntax errors or improper data type declarations, prevent proper module operation. Resolving these issues requires careful program verification, network diagnostics, and adherence to Allen Bradley's programming guidelines for the 1746-BAS module. Firmware upgrades address known bugs and improve overall system stability.
Technical specifications
The Allen-Bradley 1746-BAS is a Basic Language Module for SLC 500 systems that allows for data collection, report generation, and communication with various devices via its configurable serial ports (RS-232/423/422/485) and a DH485 port (requiring an adapter). It has 24KB of battery-backed RAM, low power consumption, and supports standard data transfer rates. It features a user-friendly programming environment with debugging tools and a built-in clock/calendar. The 1746-BAS-T is a faster variant. It operates in a 0-60C temperature range and meets NEMA noise immunity standards, with a communication distance of up to 1230 meters.
Our Repair Process for the
1746-BAS
Our repair process for the Allen Bradley 1746-BAS module begins with a comprehensive diagnostic evaluation to pinpoint the root cause of the failure, focusing on program memory integrity, DH-485 network communication, and BASIC program errors. Program memory is verified, and any corruption is corrected through reprogramming using a verified backup or a clean installation adhering to Allen Bradley's programming guidelines. DH-485 network connectivity is assessed by confirming correct baud rate settings and testing network cables for continuity and signal integrity; faulty cables are replaced immediately. BASIC programs are scrutinized for syntax errors, improper data type declarations, and logical flaws, with corrections implemented to ensure proper module operation. Firmware is upgraded to the latest revision to address known bugs and enhance system stability, followed by rigorous testing to guarantee complete functionality and prevent recurrence of the identified issues.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.