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Instruction execution complete flag
When a flag contact is not programmed directly under the instruction to be checked, the flag may be turned off depending on the execution status of another i... More Details >>
- No:24988
- Release Date:2019/04/23 07:22
- Category: MELSEC-F Series , Main Unit
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Adding two channels of the RS-232C port in the FX3G series
Select the 40-point or 60-point type FX3G series main unit. In this case, two FX3G-232-BDs can be connected. When FX3G-CNV-ADP is used, anFX3U-232ADP can be ... More Details >>
- No:24926
- Release Date:2019/04/17 11:42
- Category: MELSEC-F Series , Main Unit
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Receiving data when no receive complete code is designated (QJ71C24N)
Data are received on a received data count basis. If there is no receive complete code and variable length data is received, the data is received at every no... More Details >>
- No:23038
- Release Date:2018/09/03 17:31
- Category: Network related products
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Using send FBs/receive FBs simultaneously
If multiple send FBs/receive FBs are simultaneously executed, the FBs do not function properly.When there are multiple send FBs, do not execute two or more s... More Details >>
- No:22893
- Release Date:2018/09/03 17:30
- Category: Engineering Software
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Usage of UPS (uninterruptible power supply)
No, it cannot be used. More Details >>
- No:22831
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
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Battery install position in LCPU
Open the cover at the bottom of the CPU module and install the battery. More Details >>
- No:22821
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
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The error code "2401" is "FILE SET ERROR". The individual information parameter number "1100H" corresponds to a file register. The cause of the error is that... More Details >>
- No:22797
- Release Date:2018/09/03 17:30
- Category: MELSEC-L Series
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Detecting the connection between a built-in Ethernet port QCPU and hub
You can check the connection to the hub with bit 10 of the special register SD1288. When bit 10 of the SD1288 is on, the QCPU is in connection with the hub. More Details >>
- No:22712
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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Operation error at the execution of a BIN instruction
Keep SM722 ON or correct the program so that any one of the ten numbers 0 to 9 is stored in each digit of the source data.An operation error occurs when data... More Details >>
- No:22635
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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Change the program using the following method.Write the label program to the programmable controller CPU and perform PLC read for the parameters and the prog... More Details >>
- No:22603
- Release Date:2018/09/03 17:29
- Category: MELSEC-Q Series
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