在FANUC-PMC-L中有兩種指令：根本指令和功用指令。當(dāng)規(guī)劃次序程序時(shí)，運(yùn)用多的是根本指令，根本指令共12條。功用指令便于機(jī)床特別運(yùn)行操控的編程，功用指令有35條。
在根本指令和功用指令執(zhí)行中，用一個(gè)倉(cāng)庫(kù)寄存器暫存邏輯操作的中心結(jié)果，倉(cāng)庫(kù)寄存器有9位（如圖1所示），按先進(jìn)后出、后進(jìn)先出的原理工作。當(dāng)前操作結(jié)果壓入時(shí)，倉(cāng)庫(kù)各原狀況悉數(shù)左移一位；相反地取出操作結(jié)果時(shí)倉(cāng)庫(kù)悉數(shù)右移一位，終壓入的信號(hào)首先恢復(fù)讀出。

There are two kinds of instructions in fanuc-pmc-l: basic instructions and functional instructions. When planning the sequence procedure, the basic instructions are used most, and there are 12 basic instructions in total. The function instructions are convenient for the programming of special operation and control of the machine tool. There are 35 function instructions.
In the execution of basic instructions and function instructions, a warehouse register is used to temporarily store the central result of logical operations. The warehouse register has 9 bits (as shown in Figure 1), and works according to the principle of first in last out and last in first out. When the current operation result is pressed in, all the original conditions of the warehouse are moved to the left by one bit; On the contrary, when taking out the operation results, the warehouse moves all to the right by one bit, and the final pressed signal is first restored to be read out.