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RTI Control Systems Forum - View Post
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More than 8 Sense Inputs?
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| Topic: | More than 8 Sense Inputs? This thread has 18 replies. Displaying posts 1 through 15. |
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| Post 1 made on Friday November 6, 2009 at 23:56 |
rtiuser Long Time Member |
Joined:
Posts: | August 2009
99 |
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What do you guys do if you need more than 8 sense inputs? I have a feeling I'm going to run out of sense inputs on a current job. Not right away but maybe in a couple months as things get added to the property.
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| Post 2 made on Saturday November 7, 2009 at 17:55 |
AndyM Founding Member |
Joined:
Posts: | March 2002
1,470 |
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On November 6, 2009 at 23:56, rtiuser said...
What do you guys do if you need more than 8 sense inputs? I have a feeling I'm going to run out of sense inputs on a current job. Not right away but maybe in a couple months as things get added to the property. I don't have a solution... but I would love to know what your working on that is going to take up all 8 ports... anything interesting?
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| Post 3 made on Saturday November 7, 2009 at 18:27 |
select Founding Member |
Joined:
Posts: | January 2002
229 |
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You can set up a decimal to binary converter. The 8 sense inputs will give you 256 different possiblites. You then need a system macro to test for the right combination of 1s and 0s. This won't initiate a action unless you run the macro.
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| Post 4 made on Saturday November 7, 2009 at 18:54 |
jimstolz76 Loyal Member |
Joined:
Posts: | December 2007
5,607 |
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On November 7, 2009 at 18:27, select said...
You can set up a decimal to binary converter. The 8 sense inputs will give you 256 different possiblites. You then need a system macro to test for the right combination of 1s and 0s. This won't initiate a action unless you run the macro. Wow, that's clever. I always forget about binary.
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| OP | Post 5 made on Saturday November 7, 2009 at 19:15 |
rtiuser Long Time Member |
Joined:
Posts: | August 2009
99 |
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On November 7, 2009 at 17:55, AndyM said...
I don't have a solution... but I would love to know what your working on that is going to take up all 8 ports... anything interesting? Mainly cameras. Push door bell which triggers the screens to wake up and switch to front door camera. This client has 6 motions outside that will be associated with cameras. Similar scenario, motion sensed then screens wake up and switch to that camera. I like using sense inputs for gates and garage doors also. This just happens to be a very large property.
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| OP | Post 6 made on Saturday November 7, 2009 at 19:16 |
rtiuser Long Time Member |
Joined:
Posts: | August 2009
99 |
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On November 7, 2009 at 18:27, select said...
You can set up a decimal to binary converter. The 8 sense inputs will give you 256 different possiblites. You then need a system macro to test for the right combination of 1s and 0s. This won't initiate a action unless you run the macro. I'm not familiar with this. Can you elaborate on how this is accomplished? Thanks...
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| Post 7 made on Saturday November 7, 2009 at 19:57 |
jwalkup Founding Member |
Joined:
Posts: | December 2001
320 |
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I think I would use a DSC panel and its 2 way driver for the extra inputs.
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| Post 8 made on Saturday November 7, 2009 at 21:37 |
AVStoney Long Time Member |
Joined:
Posts: | August 2003
60 |
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I believe the new PCM-8 MPIO expansion Module will give you 8 more sense ports if I'm not mistaken.
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| Post 9 made on Saturday November 7, 2009 at 22:40 |
jimstolz76 Loyal Member |
Joined:
Posts: | December 2007
5,607 |
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On November 7, 2009 at 21:37, AVStoney said...
I believe the new PCM-8 MPIO expansion Module will give you 8 more sense ports if I'm not mistaken. Yeah, the PCM-8 plus 8 VPS1 or SPS1. You can do up to 10 PCM-8's, so technically you could get 88 sense inputs, but it'll set you back... what... $9,400 MSRP plus the XP-8? :)
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| OP | Post 10 made on Saturday November 7, 2009 at 23:12 |
rtiuser Long Time Member |
Joined:
Posts: | August 2009
99 |
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On November 7, 2009 at 21:37, AVStoney said...
I believe the new PCM-8 MPIO expansion Module will give you 8 more sense ports if I'm not mistaken. Not sure this is sense contact closure.... Voltage and Video yes...
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| Post 11 made on Sunday November 8, 2009 at 12:22 |
select Founding Member |
Joined:
Posts: | January 2002
229 |
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On November 7, 2009 at 19:16, rtiuser said...
I'm not familiar with this. Can you elaborate on how this is accomplished?
Thanks... Digital binary circuits convert an iinput from 1 to 256 to a binary number 00000000 to 11111111. For example if camera 14 went high you would get 00001100 or expansion ports 3 and 4 on. You would need a pretty big system macro that would need to run to test.
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| Post 12 made on Sunday November 8, 2009 at 13:38 |
scottedge267 Advanced Member |
Joined:
Posts: | February 2003
790 |
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you could get another XP-8 and use the rs232 macros to communicate to it.
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| OP | Post 13 made on Sunday November 8, 2009 at 18:34 |
rtiuser Long Time Member |
Joined:
Posts: | August 2009
99 |
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| Post 14 made on Sunday November 8, 2009 at 23:18 |
HiFidel Long Time Member |
Joined:
Posts: | July 2005
165 |
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On November 7, 2009 at 23:12, rtiuser said...
Not sure this is sense contact closure.... Voltage and Video yes... If it can't detect dry closure then add a small power supply.
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| Post 15 made on Monday November 9, 2009 at 02:19 |
select Founding Member |
Joined:
Posts: | January 2002
229 |
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The VPS1 or SPS1 won't give you event control, they will give you power condion.
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