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

The receive data length of the variable is specified in bytes. More Details >>

Setting required to skip CC-Link slave station numbers

A CC-Link slave station number can be skipped by assigning the skipped number to a reserved station. A reserved station is counted as one of all the connecte... More Details >>

Transient transmission of the CC-Link IE Controller

Transient transmission is a function that allows communication with programmable controllers in other stations. Communication with programmable controllers i... More Details >>

CC-Link master modules' start I/O No. and refresh devices RX/RY

The I/O numbers used for I/O modules and intelligent function modules cannot be used as refresh targets for RX/RY. Use the I/O numbers greater than those use... More Details >>

How to set CC-Link reserved stations

- If the Network Parameter is used Make "Station Information Setting". - If the parameter is set using a dedicated instruction Set the control data of... More Details >>

Difference between CC-Link reserved stations and invalid stations

- Reserved station Reserved stations are not actually connected to the network (but will be connected in the future) but do not appear as data link error... More Details >>

Mixing the CC-Link IE Field Network with general LAN communication

Mixed communication with the same hub cannot be established. Establish the CC-Link IE Field Network and general LAN communication separately. 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 >>

Terminating resistors for QJ71C24N

A terminating resistor must be connected to the interface in order to reduce signal reflections thus preventing the signal instabilities. More Details >>

How refresh devices for CC-Link remote inputs and outputs are assigned

The refresh device setting of the CC-Link parameter assigns any devices to the I/O numbers greater than those assigned to the modules on the same base unit. ... More Details >>