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 >>

Resistor value for CC-Link cables

The value depends on the type of cable in use. - Ver.1.10-compatible CC-Link dedicated cables: 110 ohm, 1/2W - CC-Link dedicated cables (Version 1.00): 110... More Details >>

Error code "2110" in LCPU

The error code "2110" is "SP.UNIT ERROR.". This error may be caused by one of the following factors.(1) The module that has been specified by a FROM/TO instr... More Details >>

END cover

An error occurs and CPU will stop. Install the END cover and reset the CPU module. More Details >>

How to set a value in SM414(2n second clock)

Set a value in the special register SD414.Use a MOV instruction to set the value in SD414. More Details >>

Operation error at the execution of a BIN instruction

Keep SM722 ON or correct the program so that any one of the ten numbers 0 to 9 is stored in each digit of the source data.An operation error occurs when data... More Details >>

Fixed scan execution type (program setting item)

A fixed scan execution type program is a program executed at specified time intervals. This type of programs, unlike interrupt programs, can be interrupted i... More Details >>

PLC write not possible due to memory overload

If comments cannot be stored in the program memory, write them in the standard ROM or a memory card. Calculate the memory capacity in GX Works2 or GX Develo... More Details >>

USB driver installation procedure

For the USB driver installation procedure, refer to the following manuals.- GX Developer Version 8 Operating Manual (Startup) Chapter 3- GX Works2 Version 1 ... More Details >>

Regardng compatability with other product series

Although the connection with FX2N series I/O modules, FX2 series intelligent function modules, and FX3 series special adater is not possible, FX3 series inte... More Details >>