Gppwin Developer

I use the above software to write small programs for mitsi. A1s modules.
I would like help in understanding some of the ladder logic.
Unfortunatly I don't have a copy of the logic I need help with.
I have an analogue input (flow meter) 4-20Ma wired to an analogue card. I have contacts for a watchdog and ready for a\d conversion but then have

[from h8 k10 w100 k1]

I guess [from h8] is identification of which analogue card it is to scan since there is more than one and get the W100 being the 4-20 raw value input but don't know the rest of the code.
Could someone please point me in the right direction.

Thanks Ned

If my memory serves me right the instruction is as follows:
H8 is the address of the card,K10 is the start of the raw analog values W100 means store it in the word 100 (if you fetch more than one it populates the next consecutive words & K1 is read one analog value
so if you had a 4 input analog card & put them in W100 & read K4 it will populate W100 to W103 with the 4 analog values.
All special function cards on mitsi use the To & from instruction, the writing & reading of data either sets up the card, sends data to the card or receives data from the card, each module has a buffer area that you address using Hxx.
e.g. buffers 0 to 3 might be for setting limits on the card 4-11 might be the 8 channels of data read & 12-20 might be diagnostic data you can use in your program about the card.

Thankyou very much Parky I now know what I'm doing as I was guessing a bit by following some code I found in another program.