8AC140.61-3 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
The B & R Automation 8AC140.61-3 is a double-width plug-in module from the 8AC Powerlink Modules series. It features a processor clock of 100 MHz, 32 MB of DRAM, and 32 kB of SRAM. The module supports three digital I/O, a ±10 V analog input signal with 12-bit resolution, and includes both Profibus RS485 and Ethernet interfaces.
Internal Product Review
The 8AC140.61-3 is a double-width plug-in Powerlink module for B & R Automation systems, designed for installation in slots 1 + 2. Technical value is strong with 10/100 Mbit/s Ethernet and a 12 Mbit/s Profibus interface, supporting dependable network integration across mixed control architectures. A ±10 V analog input paired with 12-bit resolution gives the module precise signal handling, making accurate analog acquisition a key strength.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The 8AC140.61-3 belongs to the 8AC Powerlink Modules series from B & R Automation. It is installed as a double-width plug-in expansion that occupies slots 1 and 2 of a system rack, where it links decentralized sensors and actuators to a deterministic Powerlink backbone inside automated cells. By combining local processing, field-level I/O, and several legacy serial links, the module streamlines data exchange between motion controllers, operator stations, and machine peripherals. Because it bridges distributed devices and the rack controller, it can reduce the need for separate interface hardware in machines that mix networked and local signals.
The unit accepts an analog range of ±10 V and converts it with 12-bit resolution, allowing mid-level precision for temperature, position, or pressure feedback. Three on-board digital channels, identified as 3 discrete I/O points, enable quick status detection and simple switching tasks without an external card. A processor clocked at 100 MHz manages these tasks while buffering data in 32 MB of DRAM. Nonvolatile parameters are stored on CompactFlash, and transient variables are held in SRAM so operating values can be accessed quickly during runtime. This combination allows the module to sample incoming signals, retain application settings, and keep working data available for control routines without a separate memory board.
High-speed communication is supported through an Ethernet port rated at 10/100 Mbit/s for deterministic Powerlink traffic. A Profibus link reaches 12 Mbit/s over an RS485 physical layer, and an asynchronous RS232 channel is limited to 115.2 kbaud for service access and simple serial integration. Each digital output can source up to 500 mA, letting the module drive contactors or indicator lamps directly while staying within a total draw of 4.5 W from the backplane supply. The serial interfaces also support connection to equipment that still relies on conventional fieldbus or point-to-point communication. Power use remains moderate for shared rack installations, and the output stage can switch light external loads without an added relay card.
