FP Sigma

More advanced and complex control is required for PLCs in accordance with equipment functionality enhancements, such as the support of multi-axial positioning, multi-point temperature control, serial communications, or networking. A greater programming memory capacity is thus being increasingly required, even for compact models. Panasonic FPΣ V3 has a programming capacity of 32 k steps, which is approx. 2.7 times bigger than our conventional model and can accommodate an increase in the number and complexity of programs without difficulty. Upgraded equipment also requires an increase in the operation speed of PLCs to process increased programs in addition to the expansion of the program memory. FPS V3 is compact in size but equipped with a RISC processor. The basic instruction operation speed is 0.32 µs/step, which is 1.2 times faster than our conventional model. The speed of high-level instruction operations, including floating point operations, is also high, reducing the total scan time. Temperature control applications operated by PLCs are being expanded, for example, to multistage control, timer control, control according to variables based on data processing results, or multipoint control. FPΣ V3 has a new PID instruction (F356 EZPID), which makes PID control programming much easier than with our conventional model, facilitating temperature control by a PLC, which had previously been considered difficult. The right-hand example shows simple temperature control. A combination of touch panel operations and the F356 instruction allows you to write the program in only one line, significantly facilitating PID control.

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