AutomationDirect added two new feature-enhanced CPUs to its DirectLOGIC DL405 programmable logic controller product line. The D4-454 and D4-454DC-1 have the capabilities of D4-430, D4-440 and D4-450 CPUs. They use updated microprocessor technology, making the D4-454 the CPU choice of the DL405 PLC family.
Both of the D4-454 CPUs have a built-in power supply and four communications ports. The CPUs have a large amount of program memory, advanced diagnostics and a substantial instruction set. The instruction set includes drum sequencers, ASCII output, floating point math, trig functions, bit-of-word manipulation, timed and hardware-triggered subroutine, For/Next loops, fill-in-the-blank PID control and more.
The D4-454 memory is contained in the CPU and stored in a non-volatile MRAM memory. This CPU does not require a memory card. There is a coin-style battery that is used for the rendition of the Real-Time Clock.
The DirectLOGIC 405 line of programmable logic controllers has, according to AutomationDirect, time-tested hardware. It has a wide variety of I/O modules, configurations and specialty modules available, which allows for local/distributed I/O systems of up to 3,500 points possible. Cost-effective process control can be performed using the built-in PID instructions or specialty modules.
These new CPUs cost $859 and come with a one-year warranty. To learn more about these new CPUs, visit the AutomationDirect site here.