bgelectric
Senior Member
Im stumped!
I dont understand how to set address on based on this paperwork???
I dont understand how to set address on based on this paperwork???
Setting address on fa device
- Thread starter bgelectric
- Start date
- Status
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
Senior Member
I guess I dont...
zog
Senior Member
- Location
- Charlotte, NC
There are 10 types of people in the world: Those who understand binary, and those who don't
bgelectric
Senior Member
I appreciate the valuable input.
- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
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.
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.
Ummm ... that's 1-4 and 5-8
gadfly56
Senior Member
- Location
- New Jersey
- Occupation
- Professional Engineer, Fire & Life Safety
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!
Probably wouldn't even realize it until testing....
hmy:
hbiss
EC, Westchester, New York NEC: 2014
- Location
- Hawthorne, New York NEC: 2014
- Occupation
- EC
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
MisterCMK
Member
- Location
- Twin Cities, MN
What do you expect from Simplex? :slaphead:
- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
Just look at the switch upside down and all will be well....
Simplex doesnt want you to understand, they want you to get confused and call for a$$istance.
bgelectric
Senior Member
Thanks everyone I see now how to set the address.
gadfly56
Senior Member
- Location
- New Jersey
- Occupation
- Professional Engineer, Fire & Life Safety
Well, Geez, that explains everthing! :lol:
Security101
Senior Member
- Location
- Northern Indiana
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
It cuts out the math part :happyyes:
Jim
hbiss
EC, Westchester, New York NEC: 2014
- Location
- Hawthorne, New York NEC: 2014
- Occupation
- EC
What math?? Just read the damn chart.
-Hal
-Hal
- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
- Status