When the working CPU is running (in a normal or a nonfatal fault condition) and the standby CPU is standing by, the cha

R_STS = 1 means 'send buffer overflow' detected by the general-purpose communication module. Check the communication for

In exponentiation operation, when a negative value is used for the base, the result is 0.

Yes, you can use NP1L-RS1/RS4/RS5 for RS-422 devices. RS-485 is upper compatible with RS-422. There are two connection t

No, you cannot. Use the dedicated loader cable (Type_NW0H-CA3).

Usually, set the CPU No. to 0. The CPU No. 0 works as a master of an SX bus system. In a multi-CPU system or a CPU redu

The Loader command mode is fixed to the TCP/IP communication. UDP/IP communication is not supported.

When the EMG signal and ±OT signal are not used, connect them to 24 V DC. Alternatively, you can set the ±OT signal to

Use an optical fiber cable (Type 2-C-LAP) provided by Sumitomo Electric Industries, Ltd.

Yes, it is possible. Of the parameter setting items of initialization, changes made to specific parameter items (such as

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GLOBAL > PLC > SPH

Latest FAQ

When I write parameter to LonWorks module (NP1L-LW1) using support tool for a LonWorks (NP4N-LNDF), what is the required cable?
When I set the high-speed counter module (NP1F-HC2) to the preset operation mode of the multi-functional counter FB, the preset is disabled in the ...
Are there any restrictions on the mounting position of the I/O modules and communication modules on the base? I'd like to place the communication m...
When using a communication module (NP1L-RS1/RS2/RS3/RS4/RS), the FB outputs R_STS 'C0' (Hardware error detected) during receiving. In this case, ho...
When I attempted to download a project to a CPU with user ROM card by using D300win, a message appeared saying 'Invalid loader command process!' an...

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FAQ within [ SPH ]

81-90 of Total 235

≪ 9 / 24page ≫

In a redundant system (SPH300 or SPH2000 with StandardV3), when I change the program online (Load the changed program into PLC), is the changed pr...

When the working CPU is running (in a normal or a nonfatal fault condition) and the standby CPU is standing by, the changed program is loaded into both CPUs... Show Detail
- No：1647
- Displayed Date：2023/04/25 19:00
- Category： Support tool (Standard)
When the MODBUS master standard expansion FB _C_modm operates, the receive status becomes R_STS = 1. This is not shown in the receive status list. ...

R_STS = 1 means 'send buffer overflow' detected by the general-purpose communication module. Check the communication format, communication interval and other... Show Detail
- No：1607
- Displayed Date：2023/04/25 19:00
- Category： Communication (Others)
In ST language, when I use a negative value for the base of exponentiation (such as -2.0**4.0), the calculation result is different from the case w...

In exponentiation operation, when a negative value is used for the base, the result is 0. Show Detail
- No：1551
- Displayed Date：2023/04/25 19:00
- Category： Application
NP1L-RS1/RS4/RS5 support RS-485. Can I use them for RS-422 devices?

Yes, you can use NP1L-RS1/RS4/RS5 for RS-422 devices. RS-485 is upper compatible with RS-422. There are two connection types for RS-422 devices: 2-wire conne... Show Detail
- No：1522
- Displayed Date：2023/04/25 19:00
- Category： Communication (Others)
Can I use a commercially available LAN cable as a loader cable that is used with the converter (Type_NP4H-CVU) to connect a personal computer loade...

No, you cannot. Use the dedicated loader cable (Type_NW0H-CA3). Show Detail
- No：1511
- Displayed Date：2023/04/25 19:00
- Category： Support tool
A CPU module has a rotary switch (0 to F) for setting the CPU No. on its front. What CPU No. should I set?

Usually, set the CPU No. to 0. The CPU No. 0 works as a master of an SX bus system. In a multi-CPU system or a CPU redundant system which uses multiple CPU ... Show Detail
- No：1504
- Displayed Date：2023/04/25 19:00
- Category： Main unit
I use the Ethernet module (Type_ NP1L-ET1/ET2) in the Loader command mode. Can I also use the UDP/IP communication?

The Loader command mode is fixed to the TCP/IP communication. UDP/IP communication is not supported. Show Detail
- No：1442
- Displayed Date：2023/04/25 19:00
- Category： Communication (Ethernet)
Please tell me the wiring method for the positioning control module (Type_ NP1F-MP2/MA2) when the EMG signal and ±OT signal are not used.

When the EMG signal and ±OT signal are not used, connect them to 24 V DC. Alternatively, you can set the ±OT signal to 'Disabled' in the parameter settings ... Show Detail
- No：1432
- Displayed Date：2023/04/25 19:00
- Category： Function
Which optical fiber cable for an SX bus should I choose for outdoor use?

Use an optical fiber cable (Type 2-C-LAP) provided by Sumitomo Electric Industries, Ltd. Show Detail
- No：1315
- Displayed Date：2023/04/25 19:00
- Category： Communication (Others)
In the communication module (NP1L-RS1/RS2/RS3/RS4/RS5), is it possible to change communication parameter such as fixed length to variable length af...

Yes, it is possible. Of the parameter setting items of initialization, changes made to specific parameter items (such as frame detection, code conversion and... Show Detail
- No：1639
- Displayed Date：2023/04/25 19:00
- Category： Communication (Others)

81-90 of Total 235

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