It might be counting noise as a pulse. Take the following measures_ (1) Isolate the pulse generator and PLC from the noi

The following analog input modules have the moving average function. 1) For the following models, the moving average f

Once an error history is generated, it is retained internally within the FL-net module and is cleared when the power is

In a redundant system, both CPUs are identified as CPU0 and you cannot read a battery error of the standby CPU. Determin

Since the parameter data area of the positioning control module (Type_ NP1F-MP2/MA2) operates on the RAM, it is always c

If this is caused by a fluctuation in the input temperature, moving average processing shown below may improve the condi

The cable is not oil resistant so that you need to protect it by covering it with oil-resistant material.

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

In the parameter setting of the Ethernet module in the system definition, set the 'Server FTP command watch timer value'

No, you can't. You can check the IP address by connecting the PC loader to the CPU module and monitoring the RAS informa

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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 ]

131-140 of Total 235

≪ 14 / 24page ≫

I use the SPH and the high-speed counter module seems to count more than actual values. What is a possible cause?

It might be counting noise as a pulse. Take the following measures_ (1) Isolate the pulse generator and PLC from the noise source and shorten the wiring dist... Show Detail
- No：1427
- Displayed Date：2023/04/25 19:00
- Category： Function
Is there an analog module that supports the moving average function?

The following analog input modules have the moving average function. 1) For the following models, the moving average function can be set by switch setting ... Show Detail
- No：1493
- Displayed Date：2023/04/25 19:00
- Category： I/O
How does the FL-net module (Type_ NP1L-FL1/FL2/FL3) clear the error history recorded in each memory?

Once an error history is generated, it is retained internally within the FL-net module and is cleared when the power is turned off and turned on again or whe... Show Detail
- No：1567
- Displayed Date：2023/04/25 19:00
- Category： Communication (Others)
An address error occurs when I read a battery error of the standby CPU (CPU1) from the operating CPU (CPU0).

In a redundant system, both CPUs are identified as CPU0 and you cannot read a battery error of the standby CPU. Determine the condition of the standby CPU fr... Show Detail
- No：1572
- Displayed Date：2023/04/25 19:00
- Category： Application
When I turned on the positioning control module (Type_ NP1F-MP2/MA2) in the morning, the parameters were reset to the initial values. What is the f...

Since the parameter data area of the positioning control module (Type_ NP1F-MP2/MA2) operates on the RAM, it is always cleared when you turn off the module. ... Show Detail
- No：1573
- Displayed Date：2023/04/25 19:00
- Category： Function
The temperature measurement value of the resistance temperature sensor (PT input) is unstable.

If this is caused by a fluctuation in the input temperature, moving average processing shown below may improve the condition. 1) Change the digital filter v... Show Detail
- No：1586
- Displayed Date：2023/04/25 19:00
- Updated DTM：2023/06/09 13:56
- Category： I/O
Is the SX bus cable oil resistant?

The cable is not oil resistant so that you need to protect it by covering it with oil-resistant material. Show Detail
- No：1604
- Displayed Date：2023/04/25 19:00
- Category： Communication (Others)
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)
During loader command communication of Ethernet, a port is closed after it has not been accessed from a personal computer for a certain period of t...

In the parameter setting of the Ethernet module in the system definition, set the 'Server FTP command watch timer value' to 0. The port is not closed even if... Show Detail
- No：1612
- Displayed Date：2023/04/25 19:00
- Updated DTM：2023/06/09 13:59
- Category： Communication (Ethernet)
When I forget the IP address of the WEB module (Type_ NP1L-WE1), can I change the IP from an external network?

No, you can't. You can check the IP address by connecting the PC loader to the CPU module and monitoring the RAS information of the fault diagnosis function. Show Detail
- No：1616
- Displayed Date：2023/04/25 19:00
- Category： Communication (Ethernet)