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 >>

I/O numbers of a MELSEC iQ-R series I/O combined module (RH42C4NT2P)

An input and output use a single I/O number. (This is the same as QH42P.) When you replace a module that uses serial I/O numbers (e.g. QX41Y41P) with this m... More Details >>

How to prevent unauthorized access to MELSEC iQ-R series CPU modules via a network

The MELSEC iQ-R series CPU module has "IP filter function" and "remote password function" as security functions. With the "IP filter function", you can set ... More Details >>

Processing time of when multiple programs are executed with a MELSEC iQ-R series CPU module

When multiple programs are executed, the processing time (program switching time) becomes "Number of program files × 0.9 [us]". 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 >>

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 >>

Including GX Developer in GX Works2

Yes, it does.GX Developer can be installed along with the installation of GX Works2.For more details of the installation procedure, refer to GX Works2 Versio... More Details >>

GX Works2 installation procedure from the iQ Works disk

Use setup.exe in iQ Works Disk 2 (appears directly under the disk folder), to install the application.For the individual installation procedure from the iQ W... More Details >>

Difference between Q61P and Q64PN

There are differences in 5 VDC rated output current and in 5 VDC overcurrent protection.The difference in 5 VDC rated output current is as follows.- Q61P: 6 ... More Details >>

Behavior of special relay in simulation

The constant scan initial value in the simulation function is 100ms. Thus, the value of SM410(0.1sec. clock) is OFF in each scan. To turn ON/OFF SM410, set ... More Details >>