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
When the memory with a retain attribute is corrupted, the CPU clears the memory and operates in nonfatal fault condition. If the power is reset again in this... Show Detail
Is it permitted to have an unused slot in an SPH system configuration?
An unused slot is permitted in a system configuration. If you plan to mount a module in the unused slot in the future, it can be registered as 'unimplemen... Show Detail
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
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
The SPH does not have a RUN contact. Is there any alternative?
As an alternative, you can combine hardware and software functions. (1) Hardware_ Prepare a relay output card and use one point as a RUN contact. (2) Sof... Show Detail
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
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, 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
(1) With the SPH300/2000 Series, it is used to back up the data memory of the retained attributes, calendar IC memory, and RAS information. (2) With the SPH2... Show Detail
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