The battery supplied with a CPU module is used to back up the following memories in the CPU module when a PLC system is

The equivalent data is retained for one default task during switching and the standby CPU starts execution from the begi

You can use it as a standard base board by setting its station No. to '00.' In this case, you also need to set the syste

Turn off the write-protect switch of the user ROM card, mount it on the CPU module and transfer a program to write it to

During battery-less operation, previous fault information and other 'history of RAS' are not saved. Only the present RAS

If the CPU supports user ROM (CF or SD card), you can do it by sending the program data for operation to the site by e-m

When the power supply recovers to normal, the ALM contact automatically returns to the original position (open).

No, it is not possible. Only one program can be stored.

The P-link memory is prepared in the P-link module. It is separate from the memory in the CPU and no change takes place

For an alarm contact output of an error of the PLC system, select an arbitrary output module in the system definitions a

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GLOBAL > PLC > SPH > Main unit

Latest FAQ

I have configured a multi-CPU system, but the system has run out of memory for the multi-CPU. Can I access the common general memory from the other...
What is the rated current value of the fuse in the power supply module (NP1S-22)? I want to know to select the circuit breaker on the primary side ...
When I mount the user ROM card for the SPH200 (Type_ NP8PMF-16) without changing its write protection from OFF, is the content of the ROM protected?
When the retain memory (memory for data backup with a battery) of the CPU module of the MICREX-SX Series SPH is corrupted, how does the CPU module ...
Can I mount or remove a CPU module and a power supply module on a hot plug base board while the system power is on?

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FAQ within [ Main unit ]

1-10 of Total 34

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I bought an SPH series CPU module and the supplied battery was not connected to the CPU unit. Should I connect it? What is it for?

The battery supplied with a CPU module is used to back up the following memories in the CPU module when a PLC system is turned off. Basically, connect the ba... Show Detail
- No：1505
- Displayed Date：2023/04/25 19:00
- Updated DTM：2023/06/09 13:40
How does the redundant system handle tasks being executed when the operation is switched from an operating CPU to a standby CPU?

The equivalent data is retained for one default task during switching and the standby CPU starts execution from the beginning of the task. Show Detail
- No：1530
- Displayed Date：2023/04/25 19:00
Can I use a base board with station No. setup function (Type_ NP1B*-**S) as a standard base board (without 'S' at the end of type code)?

You can use it as a standard base board by setting its station No. to '00.' In this case, you also need to set the system definition of the loader designed f... Show Detail
- No：1531
- Displayed Date：2023/04/25 19:00
- Updated DTM：2023/06/09 13:50
How can I write to the user ROM card of a standard CPU?

Turn off the write-protect switch of the user ROM card, mount it on the CPU module and transfer a program to write it to the user ROM card. Show Detail
- No：1344
- Displayed Date：2023/04/25 19:00
When you use battery-less operation on the SPH, is the history of RAS information recorded?

During battery-less operation, previous fault information and other 'history of RAS' are not saved. Only the present RAS information is displayed. Show Detail
- No：1579
- Displayed Date：2023/04/25 19:00
There is no loader at the site. Is there any way to change the program?

If the CPU supports user ROM (CF or SD card), you can do it by sending the program data for operation to the site by e-mail or another method and then transf... Show Detail
- No：1592
- Displayed Date：2023/04/25 19:00
Does the built-in ALM contact of the power supply module of SPH maintain its status (contact closed) even if the power supply recovers to normal af...

When the power supply recovers to normal, the ALM contact automatically returns to the original position (open). Show Detail
- No：1289
- Displayed Date：2023/04/25 19:00
Can I store multiple programs in the user ROM card (CF or SD) ?

No, it is not possible. Only one program can be stored. Show Detail
- No：1298
- Displayed Date：2023/04/25 19:00
In a redundant system, what will happen to the P-link memory at the time of switchover to a standby CPU?

The P-link memory is prepared in the P-link module. It is separate from the memory in the CPU and no change takes place at the time of switchover to a standb... Show Detail
- No：1343
- Displayed Date：2023/04/25 19:00
Is there an alarm output contact to use when an error occurs in the PLC system?

For an alarm contact output of an error of the PLC system, select an arbitrary output module in the system definitions and define its 0th bit as a 'system DO... Show Detail
- No：1347
- Displayed Date：2023/04/25 19:00