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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 >>
- No:22323
- Release Date:2018/08/30 13:55
- Update:2025/11/11 14:20
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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Turning on/off a specified bit of a word device (D) using a simple program
In the FX programmable controllers (FX3U/FX3UC series), a bit in a word device can be specified in a program. It can be specified as "word device (D only) + ... More Details >>
- No:25011
- Release Date:2019/04/23 11:13
- Category: MELSEC-F Series , Engineering Software , Main Unit
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An error (error code: F1028) occurs when compilation is executed in GX Works2.
You have used the device set as the automatic assignment device for labels in the program. Change the device with the one out of the range or change the auto... More Details >>
- No:22954
- Release Date:2018/09/03 17:30
- Category: Engineering Software
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Turning on a bit in the data register
In the FX3U/FX3UC series, the bit specification of the data register is possible. (Example) D0.7→7th bit in D0 For the other types of MELSEC-F programmable... More Details >>
- No:22275
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Engineering Software , Main Unit
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Scan time while operation of a programmable controller CPU is being monitored using GX Works2
Scan time displayed on GX Works2 is the maximum scan time of the monitor target programmable controller CPU. To check current scan time, monitor the data in... More Details >>
- No:24779
- Release Date:2019/02/27 15:58
- Category: MELSEC-F Series , Engineering Software , Main Unit
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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 >>
- No:22324
- Release Date:2018/08/30 13:55
- Update:2023/06/23 10:49
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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Regarding FX5 CPU Module clock settings
There are three types of configuration: GX Works3, special devices (SM/SD), and instructions. ・How to Configure in GX Works3 (1) In GX Works3, select On... More Details >>
- No:44365
- Release Date:2024/03/27 17:01
- Category: MELSEC iQ-F Series , CPU Module , Engineering Software
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Differences between the file register and other registers
The file register is used for storing predetermined values (such as specification values for product inspection). Other registers are used as a temporary st... More Details >>
- No:22256
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Engineering Software , Main Unit
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How to install a battery to FX3G/FX3GC series
The FX3U-32BL can be installed to the FX3G/FX3GC series. After installation, select [Battery Mode: Use the battery] on the FX parameter window of GX Develop... More Details >>
- No:22271
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Main Unit , Accessories
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Keyword protection of the MELSEC-F series
The keyword protection cannot be forcibly reset. Since only the keyword that has been registered by theuser is acceptable, please take measures to ensure th... More Details >>
- No:24784
- Release Date:2019/02/27 16:27
- Category: MELSEC-F Series , Engineering Software , Main Unit
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