Add more I/O to your Allen-Bradley® RSLogix®-based system without overloading your PLC Opto 22’s IO4AB™ adds I/O to your A-B PLC system using distributed intelligence. Since the I/O processor automatically handles many local tasks—from counting and latching to thermocouple linearization and PID loop control—controller impact is minimized. You can add analog, digital, and serial I/O on the same compact mounting rack. IO4AB communicates with RSLogix systems using the standard EtherNet/IP™ protocol. IO4AB intelligent remote I/O complements your A-B system.
You’ll like Opto 22’s high quality, lower cost, and the ease of doing business with us.
- Fully compatible with ControLogix, CompactLogix, MicroLogix.
- Field-proven SNAP I/O runs in automation installations worldwide.
- Opto 22 product support is free.
- Opto 22 products are manufactured and supported in the U.S.A.
No contracts or fees.
Call us today to discuss your application. The call is free, and we’re glad to help. 800-321-6786 (toll-free in the U.S.) or 951-6786
Add new process control capabilities without impacting system throughput
The analog I/O generally required by process control can slow down your system or require additional PLCs—unless you use IO4AB. Our intelligent remote I/O has built-in analog functions that are handled locally. Opto 22 knows analog. We introduced the first analog I/O for a PC-based control system in 1983 and called it Optomux. We've been making reliable, industrial analog I/O ever since.
Transformer isolated and optically isolated from the field side to the control side, analog IO4AB is designed for harsh environments. Each module contains 2 to 32 points of I/O. Since each point is software configurable, a small number of modules can handle a wide range of inputs. Analog IO4AB is available in many signal types:
- Current inputs and outputs (with and without loop sourcing)
- Voltage inputs and outputs
- RMS
- Rate
- Temperature (ICTD and thermocouple)
- RTD
- pH/ORP
- Thermistor
- Load cell
- TPO
For process control applications, the following built-in analog functions are especially useful:
- PID loop control (up to 96 loops per I/O processor)
- Minimum and maximum values
- Analog scaling
- Calibration
- Ramping
- Totalizing
- Engineering unit conversion
- Thermocouple linearization
- Temperature conversion
- Watchdog timeout
- Output clamping