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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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I/O assignment of PLC parameters with GX Works3
"PC Parameter" in GX Works2 is "Parameter" in GX Works3. You can set the I/O assignment from "Module Configuration" or "System Parameter". <Setting fr... More Details >>
- No:22475
- Release Date:2018/09/03 17:28
- Update:2018/09/19 14:42
- Category: MELSEC iQ-R Series
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Regarding simultaneous execution of the MQTT communication function
The MQTT communication function cannot publish and subscribe at the same time. A program for the MQTT communication function is created using FB, but it c... More Details >>
- No:44345
- Release Date:2024/03/27 15:25
- Category: MELSEC iQ-F Series , Network/Communication
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Regarding handling multiple executions of ADPRW Instructions
When multiple ADPRW instructions are simultaneously executed, communication by the ADPRW command that was executed earlier is completed and communication by ... More Details >>
- No:39354
- Release Date:2023/02/15 10:17
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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Regarding how to format an SD memory card
In GX Works3, go to Online > CPU Memory Operation, select "SD Memory Card" and execute "Initialization." More Details >>
- No:39344
- Release Date:2023/02/15 10:03
- Category: MELSEC iQ-F Series , Option , CPU Module , Engineering Software
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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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Difference between QJ61BT11 and QJ61BT11N
QJ61BT11N supports Version 2 (expanded cyclic setting), the setting for refreshing/forced clearing a slave station data when the switch on a programmable con... More Details >>
- No:22964
- Release Date:2018/09/03 17:31
- Update:2018/09/25 13:16
- Category: Network related products
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File export of ladder programs
(1) If only GX Developer is used - The operation cannot be carried out for ladder programs. - For device comments, copy and paste operations can be carri... More Details >>
- No:22840
- Release Date:2018/09/03 17:30
- Update:2018/09/22 13:22
- Category: Engineering Software
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Types of data backup methods (FX3G series)
1. Data backup using an optional battery Built-in RAM data and clock data of a programmable controller are held by using an optional battery. The life of... More Details >>
- No:24701
- Release Date:2019/02/27 08:59
- Category: MELSEC-F Series , Engineering Software , Main Unit , Accessories
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How to change the keeping (latched device data) range (FX3G/FX3GC)
The keeping (latched device data) range is fixed and cannot be changed in parameters. (Reference) [When an optional battery is not used] The keeping ran... More Details >>
- No:22260
- Release Date:2018/08/30 13:48
- Update:2019/02/19 11:52
- Category: MELSEC-F Series , Engineering Software , Main Unit , Accessories
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Communication setting methods when the FX3U-232-BD is used
The non-protocol communication can be set by the following two methods: (1) setting parameters using a programming tool, such as GX Works2, or (2) writing da... More Details >>
- No:24773
- Release Date:2019/02/27 15:24
- Category: MELSEC-F Series , Engineering Software , Network/Communication
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