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 >>

Security key authentication function of MELSEC iQ-R series

The security key authentication function registers a security key in a program file and prevents unauthorized execution or access to the program.You can set... More Details >>

The number of times to insert and remove the extended SRAM cassette and SD memory card of a MELSEC iQ-R series CPU module

You can insert and remove the extended SRAM cassette less than 50 times and the SD memory card less than 500 times. More Details >>

Number of modules that can be synchronized using the MELSEC iQ-R series inter-module synchronization function

The number of modules that can be synchronized is as follows. - In single CPU system configuration: 64 modules - In multiple CPU system configuration: 57 t... 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 >>

Interrupt program priority setting of MELSEC iQ-R series

You can set interrupt priorities 5 to 7 for interrupt pointers (I0 to I15, I50 to I1023) from the module. You cannot change the priorities of interrupt poin... 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 >>

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 >>

Combination of the MELSEC iQ-R series inter-module synchronization function and the fixed scan communication of the multiple CPU system function

You can synchronize the fixed scan communication cycle of the multiple CPU system function with the inter-module synchronization cycle of the inter-module s... More Details >>