Regarding the necessity of using a battery

Device back up is available without using a battery. However, to back up link register (W) and file register (R) devices, a FX3U-32BL (battery) is required. More Details >>

Regarding UDP communication

The FX5 CPU module does not support UDP broadcast communication. More Details >>

Regarding replacing FLT Instructions

For the iQ-F series, use the following instructions. For signed 16 bit integers, use the INT2FLT instruction. For unsigned 16 bit integers, use the UINT2FL... More Details >>

Regarding updating the FX5U/FX5UC CPU module to firmware version “1.100 ” or later

To update to firmware version “1.100 ” or higher, you need a product with serial number (S/N) or higher listed below. ・FX5UC-32MT/DS-TS and FX5UC-32MT/DSS-T... More Details >>

Regarding the maximum number of connections for MODBUS communication

32 stations can be connected when RS-485 port is used and only 1 station can be connected when RS-232 port is used. More Details >>

Regarding the compatible programming tool

GX Developer/GX Works2 cannot be used. MELSEC iQ-F series only supports GX Works3. More Details >>

Regarding the "S/S" terminal.

It is used for switching between Sink/Source input. For sink input wiring, connect with "24V" terminal and short-circuit the "0V" and "input X***". For sou... More Details >>

Regarding expansion of communication ports

MODBUS serial communication over multiple communication channels is possible. The MODBUS serial communication settings can be set from GX Works3 parameters. More Details >>

Regarding the frequency of high-speed counters

The maximum frequency of the FX5U/FX5UC CPU module is 200kHz and the maximum frequency of the FX5S/FX5UJ CPU module is 100 kHz. More Details >>

Regarding changing the current value of the high-speed counter.

To rewrite the current value, arbitrary values can be written using the DHCMOV instruction. (Example) Set the current value of the high-speed counter ch1 ... More Details >>