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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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Regarding setting the FX5 CPU Module that does not support the simple CPU communication function
When connecting 2 FX5 CPU Modules (firmware version 1.110 or later) that support the Simple CPU communication function and 2 FX5 CPU Modules (firmware vers... More Details >>
- No:44329
- Release Date:2024/03/20 13:35
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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Maximum number of characters in a comment that can be transferred to a FX3U series
As project data, up to 32 one-byte characters (16 two-byte characters) can be input to each global device comment. However, the maximum number of characters ... More Details >>
- No:24700
- Release Date:2019/02/27 08:59
- Category: MELSEC-F Series , Engineering Software , Main Unit
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This occurs when the specified memory does not have consecutive free space in it. In this case, delete unnecessary files or arrange the PLC memory. Select ... More Details >>
- No:22604
- Release Date:2018/09/03 17:29
- Update:2018/09/20 18:03
- Category: MELSEC-Q Series
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Meanings of the sink input/source input
The sink input connects to a negative common for 24 V DC. The source input connects to a positive common. The sink input is generally used in Japan and No... More Details >>
- No:22254
- Release Date:2018/08/30 13:48
- Category: MELSEC-F Series , Main Unit , I/O Extension
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Regarding how to generate a false error
There is no function to generate a false error. For example, if operand (s2): divisor is set to "0" in the division command and the command is executed, err... More Details >>
- No:44610
- Release Date:2024/11/28 16:11
- Category: MELSEC iQ-F Series , CPU Module
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Regarding Instruction description help in GX Works3
You can open the descriptions for each instruction by moving the cursor to the target instruction and pressing F1. You can also hover the cursor over it and ... More Details >>
- No:39366
- Release Date:2023/02/15 13:06
- Category: MELSEC iQ-F Series , CPU Module , Engineering Software
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Regarding connection through a MODBUS/TCP Gateway
Communication is possible with simple CPU communication function of FX5CPU, FX5-ENET, FX5-ENET/IP modules. ※FX5U and FX5UC CPU modules with firmware version... More Details >>
- No:39343
- Release Date:2023/01/12 17:05
- Update:2023/06/23 11:13
- Category: MELSEC iQ-F Series , CPU Module , Engineering Software
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Regarding the difference between digital output values and digital operation values
The digital output value is a digital value obtained by performing sampling processing or various average processing on the A/D converted digital value. Dig... More Details >>
- No:39307
- Release Date:2023/02/13 16:43
- Category: MELSEC iQ-F Series , CPU Module , Analog
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The station number setting is not required for non-protocol communication. More Details >>
- No:24948
- Release Date:2019/04/18 14:27
- Category: MELSEC-F Series , Main Unit , Network/Communication
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Using the FX3U-ENET-ADP and the RS-232C/RS-485 together (FX3U/FX3UC series)
Up to two of the following optional communication equipment, including the FX3U-ENET-ADP (for Ethernet communications), can be used for the FX3U/FX3UC series... More Details >>
- No:24686
- Release Date:2019/02/22 11:40
- Update:2019/02/22 15:16
- Category: MELSEC-F Series , Main Unit , Network/Communication
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