| 摘要 |
<p>PURPOSE:To hold extendability in the monitoring of the internal information of a programmable controller by registering the internal information name of the programmable controller with the form of the polynomial with a monitoring registering means and attaining the operation of four fundamental rules of arithmetics. CONSTITUTION:A monitoring registering means 16 prepares the polynomial so as to make the internal information name of a programmable controller 8 as respective items of the polynomial together with a displaying position on a CAT 3 as information for monitoring, stores this into the prescribed area of a memory device 6 and therefore, the operation of the four fundamental rules of arithmetics can be also executed for internal information. A internal information calculating means 17 executes respective types of arithmetic processing including the operation of the four fundamental rules of the arithmetics to the data fetched from the internal information image area of a memory 6 corresponding to the polynomial registered by the monitoring registering means 16 and the result is stored into the prescribed area of the memory 6. Thus, the monitoring with the extendability can be executed.</p> |
