Precaution about MELSECNET/H connection (1)

- Set successive station numbers for the network modules in system A and system B in a redundant system. (Station number 0 cannot be set.) - Match "host... 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 >>

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 >>

Difference between networks called CC-Link and those called MELSEC

CC-Link IE, supported by the CC-Link Partner Association, is an open field network standard that integrates networks, from a controller network to field/moti... More Details >>

Reception data read request signal of QJ71C24N not turn ON

The default receive complete code is CR+LF (0DH, 0AH). The default received data count is 511 words. Hence, at their defaults, Reception data read request si... More Details >>

Difference in specifications between "AJ65BT" and "AJ65SBT" in CC-Link remote I/O modules' model names

"[ ]" in the CC-Link remote I/O modules' model name "AJ65[ ]BT" represents as follows: - None: Standard type - S: Compact type - F: Low profile waterpro... More Details >>

How to relay CC-Link cables

Use a T-branch repeater module instead of a terminal block. More Details >>

CD terminal setting of the QJ71C24N

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

Effect on sequence scans in MELSECNET/H networks

It is necessary to reduce the link refresh time of the MELSECNET/H network in order to reduce the scan time. The link refresh time can be reduced by reducin... More Details >>

Terminating resistors for RS-422 communication of QJ71C24N

The resistance value is 330 ohm, 1/4 W. More Details >>