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Programmable Controllers MELSEC
FAQ within [ Programmable Controllers MELSEC ]
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Comparison result of the CMP instruction
A comparison result is held even after the command input turns off. The remaining comparison result can be cleared by using the RST or ZRST instruction. More Details >>
- No:24692
- Release Date:2019/02/27 08:56
- Category: MELSEC-F Series
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The thickness of wireshould be2 square millimeters or more, andclass D grounding (grounding resistance: 100 Ω or less) should be performed. More Details >>
- No:24899
- Release Date:2019/04/15 11:30
- 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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The main units with Ver.2.00 or later can read and write programs of the FX3 series connected to the intelligent device station and can monitor devices. (GX... More Details >>
- No:24950
- Release Date:2019/04/18 14:27
- Category: MELSEC-F Series , Main Unit , Network/Communication
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Adding FX3U series expansion boards to an FX3UC series main unit
FX3U series expansion boards can be added to FX3UC-32MT-LT and FX3UC-32MT-LT2. More Details >>
- No:24963
- Release Date:2019/04/23 07:18
- Category: MELSEC-F Series , Main Unit
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Remote maintenance can be performed by writing a program to a memory cassette and sending the program or by using a personal computer (GX Developer). With a ... More Details >>
- No:24998
- Release Date:2019/04/23 10:38
- Category: MELSEC-F Series , Main Unit
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Protection components of relay contacts
We recommend you to connecta diode for commutation to the DC load, and surge absorber (C-R) to the AC load for the protection of the relay contacts. More Details >>
- No:24999
- Release Date:2019/04/23 10:39
- Category: MELSEC-F Series , Main Unit
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Regarding bit specification index modification for word devices
Index modification cannot be done for bit specifications for Word device. More Details >>
- No:39299
- Release Date:2023/02/13 16:39
- Category: MELSEC iQ-F Series , CPU Module , Engineering Software
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Regarding number of input/output points when adding safety extension module
It will. It is treated the same as an intelligent module, so it occupies 8 I/O points. The safety input expansion module FX5-SF-8DI4 does not occupy the numb... More Details >>
- No:39314
- Release Date:2023/01/12 16:54
- Category: MELSEC iQ-F Series , CPU Module , Safety Control
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Regarding the difference between the RS-485 expansion adapter and the extension board
The difference is the maximum transmission distance and the presence/absence of insulation (between the communication line and the CPU). ・Expansion Adapter ... More Details >>
- No:39315
- Release Date:2023/01/12 16:56
- Category: MELSEC iQ-F Series , Network/Communication
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