Overhead time of when a fixed scan execution type program of the MELSEC iQ-R series CPU module is executed

When the block number of the file register (R) is saved and stored, the overhead time becomes 35.9 [us]. When the number of the file register is not saved o... More Details >>

Software to be supplied with GX Works3

GX Works2 and GX Developer are supplied with GX Works3. When installing GX Works3, you can select whether to install GX Works2 and GX Developer together. More Details >>

Combination of the MELSEC iQ-R series inter-module synchronization function and another network synchronous communication function

You can use the MELSEC iQ-R series inter-module synchronization function together with the CC-Link IE Field Network synchronous communication function.With ... More Details >>

Using a commercially-available SD memory card for a MELSEC iQ-R series CPU module

For the commercially-available SD memory cards that can be used for MELSEC iQ-R series CPU modules, refer to the following technical bulletin. - TECHNICAL ... More Details >>

Digit specification for bit devices in ST language with GX Works3

For a label where digits are to be specified, set a bit type array as its data type. The following shows an example of when a global label is used. - Globa... More Details >>

I cannot place a main base unit in a module configuration diagram with GX Works3.

You may have already placed a main base unit in the module configuration diagram. Scroll up or down in the module configuration diagram and check if a main ... More Details >>

Security functions of MELSEC iQ-R series

The functions serve to protect the user property stored in a personal computer and the user property inside modules in the MELSEC iQ-R series system against... More Details >>

Database function of the MELSEC iQ-R series

You can manage tabular data including product information and production information as a database in a programmable controller. By accessing the database w... More Details >>

Using Q series terminal blocks and connectors with MELSEC iQ-R series modules

You can use a Q series 18-point screw terminal block with a MELSEC iQ-R series terminal block type I/O module or analog module. For a 40-pin connector type ... More Details >>

Overhead time before and after the startup of an interrupt program with a MELSEC iQ-R series CPU module

Although it depends on interrupt factors, the overhead time before startup becomes 10.8 to 23.8 [us] and the time after startup becomes 6.5 to 17.4 [us]. More Details >>