One possibility is that the compare value is not stored in the compare register of the high-speed counter. The compare v

You cannot use software filters when you use the pulse counter input function of the high-speed input module (Type_ NP1X

Yes, it is possible. Use a card with the following memory capacities_ SPH300_ 2 GB or less SPH2000_ 32 GB or less (PI

The takt cycle monitoring error is caused by the following factors_ (1) The preset takt cycle value specified in the sys

Since the data equalization (data copying from the operating CPU to the standby CPU) is performed after the default task

RS-485 is upper compatible with RS-422. In general, RS-422 devices mainly use 4-wire connection method, while RS-485 dev

We recommend you use an unmanaged switch, without B.S protection that is an industrial hub fulfilling the conditions of

They are retained. Note, however, that they are cleared if the power of the FL-net module is turned off.

The redundant function of the SPH Series provides redundancy only for the CPU and it cannot make the Ethernet redundant.

A user ROM card can be inserted and removed when the UROM LED is not illuminated (the key switch is set to a position ot

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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 ]

31-40 of Total 235

≪ 4 / 24page ≫

I use the high-speed counter module (Type_ NP1F-HC2) FB. The compare value is larger than the present counter value but the compare output becomes ...

One possibility is that the compare value is not stored in the compare register of the high-speed counter. The compare value is written by turning the data w... Show Detail
- No：1309
- Displayed Date：2023/04/25 19:00
- Category： Function
When I use the pulse counter input function of the high-speed input module (Type_ NP1X3206-A), can I set software filters?

You cannot use software filters when you use the pulse counter input function of the high-speed input module (Type_ NP1X3206-A). Show Detail
- No：1599
- Displayed Date：2023/04/25 19:00
- Category： Function
Is it possible to use a commercial CF card for the CPU module supporting CF card mounting?

Yes, it is possible. Use a card with the following memory capacities_ 　SPH300_ 2 GB or less SPH2000_ 32 GB or less (PIO mode supporting model) Note that so... Show Detail
- No：1593
- Displayed Date：2023/04/25 19:00
- Category： Accessory
A nonfatal fault of the takt cycle monitoring error has occurred. What is a possible cause?

The takt cycle monitoring error is caused by the following factors_ (1) The preset takt cycle value specified in the system definition is shorter than the ac... Show Detail
- No：1576
- Displayed Date：2023/04/25 19:00
- Category： Error
In the redundant CPU system, the cycle of the default task takes 70 ms. It takes only several microseconds with a single-CPU system. Why is such a ...

Since the data equalization (data copying from the operating CPU to the standby CPU) is performed after the default task is processed, the larger the size of... Show Detail
- No：1568
- Displayed Date：2023/04/25 19:00
- Category： Main unit
What is the difference between RS-485 and RS-422 ?

RS-485 is upper compatible with RS-422. In general, RS-422 devices mainly use 4-wire connection method, while RS-485 devices mainly use 2-wire connection met... Show Detail
- No：1521
- Displayed Date：2023/04/25 19:00
- Category： Communication (Others)
Can I use a commercially available hub for FL-net modules?

We recommend you use an unmanaged switch, without B.S protection that is an industrial hub fulfilling the conditions of use for FL-net. * What is 'B.S'?... Show Detail
- No：1465
- Displayed Date：2023/04/25 19:00
- Updated DTM：2023/06/09 13:28
- Category： Communication (Others)
When the communication cable is disconnected with an FL-net module (Type_ NP1L-FL1/FL2/FL3), are the FL-net common memory data retained? Or are the...

They are retained. Note, however, that they are cleared if the power of the FL-net module is turned off. Show Detail
- No：1405
- Displayed Date：2023/04/25 19:00
- Category： Communication (Others)
Is it possible to have redundant (duplicate) Ethernet communication via the Ethernet interface module (Type_ NP1L-ET1/ET2) in a redundant system of...

The redundant function of the SPH Series provides redundancy only for the CPU and it cannot make the Ethernet redundant. Show Detail
- No：1392
- Displayed Date：2023/04/25 19:00
- Category： Communication (Ethernet)
Can I remove user ROM card in the CPU module (CF or SD) while the CPU is running?

A user ROM card can be inserted and removed when the UROM LED is not illuminated (the key switch is set to a position other than UROM). When removing it whi... Show Detail
- No：1304
- Displayed Date：2023/04/25 19:00
- Category： Main unit