Internet PLC Forum

I am working with the FX2424 plc and I am wondering what is the simplest way to completely clear a plc back to the Factory Default condition. With other plc,s I have worked with it was as simple as creating a blank program with only an End statement With other Plc,s you also had to clear the retentitive memory area.

What sequence would you recommend to put a FX2424 back to the factory default.

I have a message that is stored in A$ that I need to put into a FIFO
 I only want to put the Message into the FIFO each time Relay 46 turns on.
I am hoping that the message in A$ can be moved into a DM area starting from DM[1700] or can a Text Message only be stored in a Variable such as A$?
I have a sample of how a FIFO should be done but I am still a little confused, Especially with the DM[1]
In the Define Table FIFO_Size = 15
 IF DM[21] <> DM[22]
DM[22] =DM[21]
 // Start FIFO
FOR I = 1 to 16 // Shift old data by towards end of FIFO
  LSHIFT DM[1], FIFO_Size
NEXT
DM[1] = DM[21] // Add new word to beginning of FIFO
ENDIF

In My program the Message is stored in DM[1600]
The start of the FIFO is DM[1700] so I think that DM[21] in the sample would be my DM[1700] & the DM[22] in the sample program would be my DM[1701] does that mean I need to substitute DM[1] with my DM[1600] ?
In my actual program DM32[1] is where the HSCV is stored.

I am concidering this as a bug due to the actions of the properties.
When you chose two buttons together to cause an action during buttons pressed every thing works perfect.
However under released tasks it only looks at either of the buttons not both.
Example 2 buttons pressed F1 & F4 set bit
Press just F1 or F2 nothing happens however when you press and release either F1 or F2 and release the task set in released takes effect.

I am still confused about the correct addressing inside the MD4030 MR when it comes to internal relays and input and output on the FX2424
Whit some trial and error I found that RC00059.00 actually turns on Relay 473, RC00059.01 turns on Relay 474 and so on.
Is there a simple formula that I can use to figure out a faster way to get the address correct?
Example what would be the correct IC number in the FP403MR to turn on Input 17 on the PLC?
What formula to use to figure out what RC number to trigger say Relay 146 inside the PLC?

I have read all the documentation and still seemed confused about the correct address to use for turning on a relay coil inside the FX2424 PLC
From what I could figure out Relay address 472 would be RC00028_8 and 473 would be RC00029_0 but when I press the associated button (F1 turn bit RC00028_8 on) on the text display no internal relays in the PLC turn on.
Can someone let me know if I have the addressing correct?  Or do I need to add something to the global task?