I/O assignment of PLC parameters with GX Works3

"PC Parameter" in GX Works2 is "Parameter" in GX Works3. You can set the I/O assignment from "Module Configuration" or "System Parameter". <Setting fr... More Details >>

Error code "2401" in QCPU

The error code "2401" is "FILE SET ERROR". The individual information parameter number "1100H" corresponds to a file register. The cause of the error is th... More Details >>

Behavior of sequence program in event of momentary power failure in QCPU

(1) When a momentary power failure occurs for a period not longer than the allowable momentary power failure time When the momentary power failure occurs, t... More Details >>

Reading and writing bits/words using the FL-net (OPCN-2) interface module

The parameters and auto refresh settings for the FL-net (OPCN-2) interface module cannot be made using the Network Parameter items in GX Developer.Set those ... More Details >>

Replacing Q02CPU with Q02H

Yes. More Details >>

Communication between the Ethernet port on the universal model QCPU and the built-in Ethernet port on the LCPU

The communication can be established using the following methods. - Using the socket communication function of both CPU modules - Using the simple PLC comm... More Details >>

Speeds of access to file registers

If file registers are registered in the standard RAM and "R" is specified by an instruction, the processing time is the same as is the case with the internal... More Details >>

RS-485 connection between QJ71C24N and an external device

Short between SDA and RDA and between SDB and RDB, and then connect them to + (Data-A) and - (Data-B) on the external device. More Details >>

Buffer memory addresses of CC-Link modules

If the remote net Ver.1 mode is used, each station number is given fixed buffer memory addresses.If the remote net Ver.2 mode is used, different buffer memor... More Details >>

CD terminal setting of the QJ71C24N

"The CD terminal is not checked" has been set by default. More Details >>