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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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Regarding performing Data Logging with Special Relays
It's possible. Using special relays, it is possible to perform data logging from a program. For details, see the manual below. MELSEC iQ-F FX5 User's Manu... More Details >>
- No:39327
- Release Date:2023/02/14 09:05
- Category: MELSEC iQ-F Series , CPU Module
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Regarding differences between 8 bit and 16 bit modes for non-protocol communication
In 8-bit mode, the upper 8 bits of transmitted and received data are ignored and only the lower 8 bits are valid data. In 16 bit mode, send/receive data i... More Details >>
- No:39363
- Release Date:2023/02/15 13:04
- Category: MELSEC iQ-F Series , CPU Module , Network/Communication
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Regarding Statement and Note Types
PLC :it is written to the CPU module and consumes the number of steps. ・Without character - 3 steps ・With character : 4 + (Number of characters + 2 + 14) /... More Details >>
- No:40023
- Release Date:2023/08/24 15:39
- Category: MELSEC iQ-F Series , CPU Module , Engineering Software
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Regarding Input Interrupt Delay
The following versions support the input interrupt delay function and can delay the start of execution. ・FX5U/FX5UC Ver. 1.290 or later ・FX5UJ Ver. 1.050 o... More Details >>
- No:40037
- Release Date:2023/08/24 15:43
- Category: MELSEC iQ-F Series , CPU Module
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Regarding Display Module Support
In the iQ-F series, there is no lineup of display modules. Consider usingweb server function. More Details >>
- No:40045
- Release Date:2023/08/24 15:53
- Update:2023/08/24 15:56
- Category: MELSEC iQ-F Series , CPU Module
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Regarding the clean session function of MQTT communication function
This function allows you to select the operation to be performed when the FX5-ENET(MQTT client) reconnects to the MQTT broker after communication has been ... More Details >>
- No:40054
- Release Date:2023/08/25 09:02
- Category: MELSEC iQ-F Series , Network/Communication
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Regarding multiple connections for the MQTT communication function
The MQTT communication function of FX5-ENET does not allow multiple connections to be opened at the same time. The MQTT communication function has a maximum ... More Details >>
- No:44358
- Release Date:2024/03/27 16:02
- Category: MELSEC iQ-F Series , Network/Communication
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Regarding PDO Mapping Settings
PDO mapping is configured from the CC-Link IE TSN configuration settings. ① Open the CC-Link IE TSN configuration settings from the FX5-CCLGN-MS Basic Set... More Details >>
- No:44475
- Release Date:2024/07/02 19:07
- Category: MELSEC iQ-F Series , Network/Communication
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The power supply lamp of a running programmable controller suddenly turned off or flashes
Check whether the lamp is back to normalafter disconnecting the wiring of the "24V" (service power supply) terminal. Ifthe lamp is back to normal,the servic... More Details >>
- No:22267
- Release Date:2018/08/30 13:48
- Update:2019/02/19 11:53
- Category: MELSEC-F Series , Main Unit
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Duplicated coil errors that can be checked with GX Works3
When an SET instruction and RST instruction use a single device, no duplicated coil error is detected. More Details >>
- No:22456
- Release Date:2018/09/03 17:28
- Update:2018/09/20 13:33
- Category: MELSEC iQ-R Series
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