Accessing file registers from the built-in Ethernet port QCPU using A-compatible 1E frames

The QnUDE(H)CPU modules with serial numbers with upper 5 digits of "14112" or later indicate compatibility with the function. The accessible device range is ... More Details >>

Q series device data held in the case of a power failure

The data in the devices assigned to Latch (1) or Latch (2) in the "Device Setting" window ([PLC Parameter] -> [Device Setting] window) is held when a pow... More Details >>

MODBUS(R) interface module's involvement in master and slave stations

Intelligent function module settings allow them to be set in both master and slave stations. More Details >>

Battery life in the universal model QCPU

It depends on the model of the CPU module, the amount of battery consumption, and the power-on time ratio. Example) For Q06UDHCPU with power-on time ratio... More Details >>

Difference between Q24DHCCPU-V and Q12DCCPU-V

Hardware specifications are different. For hardware specifications, refer to the following manuals. - MELSEC-Q C Controller Module User's Manual - C Contro... More Details >>

CPU modules that support the File Register Extended Setting

The universal model QCPU modules other than Q00UJCPU support the File Register Extended Setting. More Details >>

The VxWorks simulator CW-SIM

CW-SIM is a simulation software that allows a VxWorks program to be executed on a personal computer without a C Controller module. There are two types of CW... More Details >>

Reading file registers simultaneously with the program, parameters, and other data in GX Works2

No. Switch the target memory for PLC Data and read the file registers alone. 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 >>

Capacity setting of file registers

Set 96K points. (1K point = 1024 points) More Details >>