CC-Link IE Controller cable standard

Use the cables that meet the IEC60793-2-10 Types A1a.1 optical fiber standard. The connectors are LC (duplex) connectors. Two cores are required.The core di... More Details >>

Links with a CC-Link local station cannot be made

Check the following points. (1) CC-Link cables have been properly connected. (2) Station numbers and the transmission speed have been correctly set. (3)... More Details >>

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 >>

Limitation on the number of levels of cascade connections when QJ71E71-100 is used

If a repeater hub is used, 10BASE-T allows a maximum of four levels of cascade connections and 100BASE-TX allows a maximum of two levels of cascade connectio... More Details >>

RS-485 connection between LJ71C24 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 >>

Unit of receive data used by the QJ71C24N series pre-defined protocol support function

The fixed data is used for specific codes and character strings such as a command. Setting a device is not required. More Details >>

32-bit data assurance

To assure 32-bit data, "Network Range Assignment" of the control station must satisfy the following conditions.(1) The start device No. of LB is a multiple o... More Details >>

Refresh timing of bit data and word data in the same CC-Link station

Cyclic data is sometimes separated into new and old data by two words (32 bits) with auto refresh timing. Checking "Block data assurance per station" of the ... More Details >>

How to check the error history of the QJ71C24N with GX Developer

You can check the error history in the module detailed information in the system monitor of GX Developer. More Details >>

CD terminal setting of the QJ71C24N

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