The LG terminal is a line filter ground terminal in the power supply module. It is intended for guiding any external noi

You can mount or remove a CPU module during system operation, but not a power supply module. [Related document] For th

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

No, it is not necessary for normal operation. The main purposes of mounting a CF card or an SD card on a CPU module are

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

You cannot access general memory other than the memory for the multi-CPU from the other CPU. Access using the direct rea

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

We offer the sample program using the pulse count function for the high-speed input module. You can download the sample

No, it doesn't. A power supply module may occupy two slots (Type_ NP1S-22, NP1S-42) or one slot (Type_ NP1S-81, NP1S-91

You should be careful because if the write protection is OFF, the ROM is rewritten simultaneously with the internal RAM

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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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What is the difference between the LG and FG terminals of the power supply module (Type_ NP1S-22)?

The LG terminal is a line filter ground terminal in the power supply module. It is intended for guiding any external noise produced in the power supply or sw... Show Detail
- No：1374
- Displayed Date：2023/04/25 19:00
- Updated DTM：2023/06/09 10:52
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?

You can mount or remove a CPU module during system operation, but not a power supply module. [Related document] For the details of hot plugging function, r... Show Detail
- No：1600
- Displayed Date：2023/04/25 19:00
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
The SPH300, SPH2000, and SPH3000 series CPU modules can mount a compact flash card (CF card) or an SD card. Is it necessary for normal operation?

No, it is not necessary for normal operation. The main purposes of mounting a CF card or an SD card on a CPU module are as follows. - You can write a progr... Show Detail
- No：1474
- Displayed Date：2023/04/25 19:00
- Updated DTM：2023/06/09 13:31
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
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...

You cannot access general memory other than the memory for the multi-CPU from the other CPU. Access using the direct read/write FB is used for the access to ... Show Detail
- No：1645
- Displayed Date：2023/04/25 19:00
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
How can I use the pulse count function of the high-speed input module (Type_NP1X3206-A)?

We offer the sample program using the pulse count function for the high-speed input module. You can download the sample program and How-to Guide for it from... Show Detail
- No：1483
- Displayed Date：2023/04/25 19:00
I mounted the power supply module (Type_ NP1S-22) on the base board (Type_ NP1BS-06). The connector at the far left of the base board is not used. ...

No, it doesn't. A power supply module may occupy two slots (Type_ NP1S-22, NP1S-42) or one slot (Type_ NP1S-81, NP1S-91). The connector at the far left... Show Detail
- No：1340
- Displayed Date：2023/04/25 19:00
- Updated DTM：2023/06/13 15:34
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?

You should be careful because if the write protection is OFF, the ROM is rewritten simultaneously with the internal RAM of the CPU during program download. Show Detail
- No：1617
- Displayed Date：2023/04/25 19:00