Device comment

Those displayed under COMMENT are common comments, and others are program comments.When there are multiple programs in a project, a common comment applies to... More Details >>

GX Developer installation procedure from the iQ Works disk

Use setup.exe in the [GXD1] folder of the installation disk to install the application. 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 >>

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 >>

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 >>

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 >>

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 >>

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 >>

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 >>

Regarding CC-Link settings using GX Works3

Parameters can be set when connecting the MELSEC iQ-F series with FX5-CCL-MS(CC-Link system master/intelligent device). However, when connecting with FX3U-1... More Details >>