Setting address on fa device

Status
Not open for further replies.
bgelectric said:
Im stumped!
I dont understand how to set address on based on this paperwork???
Click to expand...
Do you understand binary numbers?

Each switch represents a binary digit.

Just noticed, the switch positions are reversed.

PS: FWIW, every ON switch adds 2 to the power of its position number-1... e.g. when position 4 switch is on, it adds 2? (=8) to the other switches.
 
Last edited:
bgelectric said:
Im stumped!
I dont understand how to set address on based on this paperwork???
Click to expand...

Quick suggestion:
Find the three digit number you want to set up for that unit.
From there look to the left to find the position of the left four switches, and look up to find the position of the right four switches.
 
bgelectric said:
I guess I dont...
Click to expand...
Golddigger's answer provides you with the way to set the switches. To understand how it accomplishes the address, it uses the binary (or base 2) system of numbers, made up of 0's and 1's.

Our decimal system is Base 10, and made up of 10 digits, 0 though 9. Places are from right to left. Each place increases by a power, n+1. In decimal, when you go past 9 in place you carry to the right as 1, to represent 1?10^n+1 and reset the current place to 0, as in the cases of going from 9 to 10, 99 to 100, 999 to 1,000 and so on.

In binary, you can only have 0 and 1 in each place, so when you epresent two, its "10". The second place represents decimal 2 or 2?. "11" represents decimal 3. "100" represents decimal 4, because the third place is 2?. "1000" represents decimal 8 because fourth place 2?. Each place is one power of 2 greater.
 
...simple put, the vertical column is for dip switches 1-4 and the horizontal column is for sip switches 3-8. Pick the address # you are setting, and than start setting dip switches 1-4, than set 3-8
 
jusme123 said:
...simple put, the vertical column is for dip switches 1-4 and the horizontal column is for sip switches 3-8. Pick the address # you are setting, and than start setting dip switches 1-4, than set 3-8
Click to expand...
Ummm ... that's 1-4 and 5-8
 
jusme123 said:
...simple put, the vertical column is for dip switches 1-4 and the horizontal column is for sip switches 3-8. Pick the address # you are setting, and than start setting dip switches 1-4, than set 3-8
Click to expand...

What jusme123 said, corrected by Smart$.

In base 10 math, going right to left, you have 1's column, 10's column, 100's column, etc. In base 2 math, you have 1's, 2's, 4's, 8's, etc. Sadly, the manufacturer has decided to reverse the usual convention, and the lowest digits are on the left. It's as if they wanted to write one thousand as "000,1". I'd probably have tried to set "8" as "00000100" and then wondered why I was getting a device at address 32!
 
gadfly56 said:
What jusme123 said, corrected by Smart$.

In base 10 math, going right to left, you have 1's column, 10's column, 100's column, etc. In base 2 math, you have 1's, 2's, 4's, 8's, etc. Sadly, the manufacturer has decided to reverse the usual convention, and the lowest digits are on the left. It's as if they wanted to write one thousand as "000,1". I'd probably have tried to set "8" as "00000100" and then wondered why I was getting a device at address 32!
Click to expand...

WHO CARES!! Talk about confusing the issue! Geeze, just follow the chart. That's what the OP is asking about that he doesn't understand!!

-Hal
 
There's an android app called "simplex_switches" that helps, don't know if there's an apple option. Just punch in the addy you want and press the "S" logo, it will show you the dip switch "up's and down's"

It cuts out the math part :happyyes:

Jim
 
Status
Not open for further replies.
Top