Receiving data when no receive complete code is designated (QJ71C24N)

Data are received on a received data count basis. If there is no receive complete code and variable length data is received, the data is received at every no... More Details >>

How to make the expanded cyclic setting for CC-Link local stations

Make the expanded cyclic setting for a CC-Link local station using the programming tool, GX Developer or GX Works2. Follow the procedure below. (1) Set th... More Details >>

CC-Link signals checked when an error occurs

Check the following signals.- Module error signal : X0- Host data link status signal: X1- Other station data link status signal: X3 More Details >>

Using a FROM/TO instruction after AJ71UC24 is replaced with QJ71C24N

I/O signals and buffer memory addresses need to be changed but data communications can be conducted using a FROM/TO instruction and X/Y signals. More Details >>

Read and write operations for CC-Link buffer memory

There is no problem in writing/reading data into/from the buffer memory using a FROM/TO instruction with the refresh device setting left blank.The refresh de... More Details >>

Clearing data in the QJ71C24N's receiving area buffer memory

Receiving data overwrites the buffer memory data. Writing 0 with a program can be performed but is unnecessary as the data is overwritten. More Details >>

About network parameters when building MELSECNET/10 with Q02HCPU-A

Q02(H)CPU-A is the AnUCPU equivalent. When establishing a MELSECNET/10 network, set the refresh parameter with which SB/SW data is transferred to "Y/D" or o... More Details >>

Detecting the number of disconnections when using QJ71E71-100

The number of disconnections detected can be checked by reading the buffer memory address 5203H (Disconnection detection count). Disconnections are detected ... More Details >>

Terminating resistors for RS-485 communication of LJ71C24

The resistance value is 110 ohm, 1/2 W. More Details >>

Connecting terminating resistors to the sending end and the receiving end in communication of QJ71C24N

Yes. More Details >>