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From PT-100 to LOGO to 7 SEGMENT

12/15/2011 2:29 PM	Rate (0)
Faizan Saeed Posts: 2 Rating: (0)	Dear Sir, I need to display mean of 4 PT-100 Module Values on 7 Segment Display using a Siemens LOGO! Module. Can you please guide me! I think LOGO! AM2 RDT module will be used for this but how? Thanks & Regards, Faizan
Faizan Saeed Posts: 2 Rating: (0)
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12/15/2011 3:13 PM	Rate (0)
Helmut_13 Posts: 2930 Rating: (432)	Hi, check the Dezimal - BCD converter example in the LOGO! internet pages. www.siemens.com/logo Hope this helps
Helmut_13 Posts: 2930 Rating: (432)
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12/18/2011 5:28 PM	Rate (0)
Oliver Gonzalez Posts: 27 Rating: (0)	As far as I can see, there is no difficulty in translating a number to BCD, but as each 7 segment display needs at least 3 bits, it will require a lot of digital outputs for a 4 digit temperature display; so it might be better to look for another device that has really the display and the temperature measurement. I think that Autonics might have big display temperature monitors. Ho,ho,ho!
Oliver Gonzalez Posts: 27 Rating: (0)
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12/19/2011 5:50 AM	Rate (0)
Faizan Saeed Posts: 2 Rating: (0)	Thanks Oliver for the suggession, Due to the use of large number of outputs in 7-segment display. it would be a costly solution. so i decided to move on to S7-200 with a TP. RTD Modules are also available in S7 200. A configuration as below would work i think 6ES7214-2AS23-0XB0 6ES7231-7PD22-0XA0 6AV6640-0CA11-0AX1 Howz that. Thanks & Regards, Faizan Saeed
Faizan Saeed Posts: 2 Rating: (0)
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12/19/2011 8:54 AM	Rate (0)
Oliver Gonzalez Posts: 27 Rating: (0)	As you said, when there are more than 10 outputs, or there are more outputs than inputs, the LOGO! is not the device to use, since normally all the modules have inputs and outputs.
Oliver Gonzalez Posts: 27 Rating: (0)
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12/20/2011 1:03 AM	Rate (0)
MattKab Posts: 22 Rating: (0)	If you absolutely want to use a LOGO! perhaps doing some other work/signalling, you could use an analogue output to a generic configurable LED panel display. Seasons greetings Matt
MattKab Posts: 22 Rating: (0)
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1/10/2012 2:30 PM	Rate (0)
Betel Posts: 1690 Rating: (584)	Hi, searches inside the german forum part under "7 segment logo"... You find circuitscircuits for the excitation of display modules. Best regards Betel
Betel Posts: 1690 Rating: (584)
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