The difference is I/O numbers used for input and output (XY). QH42P uses the same I/O numbers both for input and output.

You can set interrupt priorities 5 to 7 for interrupt pointers (I0 to I15, I50 to I1023) from the module. You cannot cha

You can set IP addresses accessible to the CPU module and prevent unauthorized access to the CPU module. <Setting th

An input and output use a single I/O number. (This is the same as QH42P.) When you replace a module that uses serial I/O

Instance communication ・The instance ID (any number) is used to communicate with the other device. Tag communication ・Th

It is not possible to add an iQ-F series module after the bus conversion module. When adding an iQ-F series module, add

This can be checked by monitoring the corresponding buffer memory from the Register to Intelligent Function Module Monit

To update to firmware version “1.100 ” or higher, you need a product with serial number (S/N) or higher listed below. ・F

Global and local labels have the following differences. Global Label ・This label is available to all programs in the pro

The connection cable is GT01-C30R4-8P. The FX5U CPU module does not have an RS422 port, so you will need to add an FX5-4

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Programmable Controllers MELSEC

MELSEC iQ-R Series(45)
MELSEC iQ-F Series(672)

CPU Module(185)
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Engineering Software(129)

FAQ within [ Programmable Controllers MELSEC ]

561-570 of Total 1023

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Difference between QH42P and QX41Y41P

The difference is I/O numbers used for input and output (XY). QH42P uses the same I/O numbers both for input and output. QX41Y41P uses sequential I/O numbers... More Details >>
- No：22539
- Release Date：2018/09/03 17:28
- Category： MELSEC-Q Series
Interrupt program priority setting of MELSEC iQ-R series

You can set interrupt priorities 5 to 7 for interrupt pointers (I0 to I15, I50 to I1023) from the module. You cannot change the priorities of interrupt poin... More Details >>
- No：22482
- Release Date：2018/09/03 17:28
- Update：2018/09/19 16:05
- Category： MELSEC iQ-R Series
IP filter function of MELSEC iQ-R series CPU modules

You can set IP addresses accessible to the CPU module and prevent unauthorized access to the CPU module. <Setting the IP filter function> [Navigati... More Details >>
- No：22479
- Release Date：2018/09/03 17:28
- Update：2018/09/19 15:01
- Category： MELSEC iQ-R Series
I/O numbers of a MELSEC iQ-R series I/O combined module (RH42C4NT2P)

An input and output use a single I/O number. (This is the same as QH42P.) When you replace a module that uses serial I/O numbers (e.g. QX41Y41P) with this m... More Details >>
- No：22471
- Release Date：2018/09/03 17:28
- Update：2018/09/19 13:57
- Category： MELSEC iQ-R Series
Regarding differences between instance communication and tag communication

Instance communication ・The instance ID (any number) is used to communicate with the other device. Tag communication ・The tag name (any character string) ... More Details >>
- No：45486
- Release Date：2025/11/12 13:55
- Category： MELSEC iQ-F Series , Network/Communication
Regarding the expansion of modules after the bus conversion module

It is not possible to add an iQ-F series module after the bus conversion module. When adding an iQ-F series module, add it in the front stage of the bus conv... More Details >>
- No：45482
- Release Date：2025/11/12 13:55
- Category： MELSEC iQ-F Series , CPU Module
Regarding checking the input/output data of the FX5-EIP

This can be checked by monitoring the corresponding buffer memory from the Register to Intelligent Function Module Monitor. From [Parameter] - [Module Infor... More Details >>
- No：45490
- Release Date：2025/05/08 09:08
- Update：2025/10/31 15:18
- Category： MELSEC iQ-F Series , Network/Communication
Regarding updating the FX5U/FX5UC CPU module to firmware version “1.100 ” or later

To update to firmware version “1.100 ” or higher, you need a product with serial number (S/N) or higher listed below. ・FX5UC-32MT/DS-TS and FX5UC-32MT/DSS-T... More Details >>
- No：44623
- Release Date：2024/11/28 16:14
- Category： MELSEC iQ-F Series , CPU Module
Regarding understanding the differences between Global and Local Labels

Global and local labels have the following differences. Global Label ・This label is available to all programs in the project. ・You can also allocate any d... More Details >>
- No：44622
- Release Date：2024/11/28 16:13
- Category： MELSEC iQ-F Series , CPU Module , Engineering Software
Regarding reuse of GOT connector cable when replacing with FX5 CPU module

The connection cable is GT01-C30R4-8P. The FX5U CPU module does not have an RS422 port, so you will need to add an FX5-422-BD-GOT. More Details >>
- No：44615
- Release Date：2024/11/28 16:13
- Category： MELSEC iQ-F Series , CPU Module

561-570 of Total 1023

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