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 >>

Updating to the 64-bit Windows 7 version of GX Works2

The message is displayed because the version of the CD does not support the 64-bit version. Execute the installation procedure in the condition. More Details >>

CPU modules supporting the serial communication function

CPU modules supporting the serial communication function are as follows. - Q00UJCPU,Q00UCPU,Q01UCPU - Q02UCPU 10102 or later (with GX Works2 1.15R or l... More Details >>

Duplicated coil error

The duplicated coil error is detected when SET instruction and RST instruction use the same device. More Details >>

Maximum apparent power of the power supplies of Q00JCPU and Q00UJCPU

Both are 105 VA. More Details >>

Difference between C Controller module and programmable controller CPU module

- C Controller module: Programs are created using C and C++ languages. The programs run based on each task and parallel processing of multiple tasks base... More Details >>

Memory allocation for online change in GX Developer

Select [Online] -> [Write to PLC] on the menu of GX Developer, open the [File selection] tab, and press "Param + Prog" button. Then open the [Program] ta... More Details >>

How to change programs in the standard ROM

After performing online change to the program memory, export the program memory data to ROM format when the CPU can be stopped or before turning off the powe... More Details >>

QnA-compatible 3E frame command (0406) for the built-in Ethernet port QCPU

The built-in Ethernet port QCPU is not compatible with a multiple-block batch read command (0406) of the MC protocol. Executable commands are the following.... More Details >>

How to write comments of GX Works2 into the standard ROM

Switch the Target Memory to "Standard ROM" in the "Write to PLC" window. More Details >>