Digital Output Module Not Working?????????
Created by: Programming Lover at: 9/21/2017 8:39 PM (16 Replies)
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| 9/21/2017 9:41 PM | |
Joined: 9/27/2006 Last visit: 9/13/2025 Posts: 12408 Rating:
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Hello PL; You seem to have omitted a few connections; look at the screenshot below. This wiring diagram is taken from the s7-300 Module data manual; a very useful document if you use it properly: Look for your module in the chapter on Digital Modules . S7-300 Module data - Industry Support Siemens First, module power: you have correcly assigned 24 VDC to pin 10, GND to pin 20; Next, power to each bank of 8 channels: you can apply 24 VDC (or 24 VAC, or 120 VAC, or even 230 VAC...) between pins 1 (power) and 9 (N)for the top 8 channels and pins 11 (power) and 19 (N)for the bottom 8 channels. Next, connecting output 0 and output 7on the top 8 channels, as shown ibelow; you connect one side of our load to pin 2,(channel 0) and the same for pin 9 (channel 7) and connect the other side of the loads together with the GND of the power supply of the top 8 channels. Repeat for all other channels used in that bank. Next, connecting outputs 0 and 7 of the bottom 8 channels as shown below, you connect one side of your load to pin 12 (channel 0) and the same for pin 19 (channel 7), and connect the other side of your loads together with the GND os the power supply of the bottom 8 channels. repeat for all other channels used in that bank. If you monitor the LEDs r a VAT table you should see the relays become active when you command the correct addresses in your program. Hope this helps, Daniel Chartier By the way, I hope the wiring techniques you demonstrate in your picture are only for test purposes, you are really asking for a short-circuit with such long stripped wires... DC |
Last edited by: dchartier at: 9/23/2017 8:03:56 PM |
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| 9/22/2017 8:23 AM | |
Joined: 3/5/2014 Last visit: 8/5/2022 Posts: 5521 Rating:
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hi, WTF! did you have a look to the wiring and block-diagramm dchartier shared with you??? do you understand how to read it? did you understand what dchartier wrote? If you have wired like you wrote, with ground on pin 2&7, you will have a short circuit when channel 1 and 5 are on. May I ask you, if you have had an electrical education? This is from the module manual:
If you are not qualified for wiring those modules, do your hands off it. If you have the proper technical schooling, take a look on the diagramm again: -The only ground is on pin 20. -Then you need 24 V DC at pin 10. -On pin 1 and pin 11 connect the source for the relais-outputs. -pin 2-9 and 12-19 are the outputs. hope this helps, regards, |
Last edited by: mopS04 at: 9/22/2017 8:24:00 AMFCK WAR! |
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| 9/22/2017 5:07 PM | |
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Posts: 42 Rating:
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Sir mpso4 and sier daniel carter i have attached the screenshot you were asking for if you want any more plz ask. Sir i have also uploaded the sideways pic of module plz sir after reading tell me i am giving 24V dc at pin 10 and 0v dc at pin 20 & also 24 v dc at pin 1 & pin 11 is that enough to turn on leds because the plate reads 30v dc/250v ac & 125 v ac moreover the plate of card reads sm 322 d0 16*rel.120V AC
AttachmentSios.zip (600 Downloads) |
Last edited by: Programming Lover at: 9/22/2017 9:32:02 PMLast edited by: Programming Lover at: 9/22/2017 9:36:19 PMLast edited by: Programming Lover at: 9/22/2017 9:38:11 PM |
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