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2 DO are connected via 2 diodes to a relay

10/3/2010 11:05 AM	Rate (0)
hdhosseini Diamond Expert Joined: 1/28/2009 Last visit: 1/5/2026 Posts: 6892 Rating: (1368)	H-H Hello hdhosseini , These are the modules that their channels are isolated in groups of 1 (channels are isolated from each other) : 1- 6ES7322-5GH00-0AB0 2- 6ES7322-5FF00-0AB0 3- 6ES7322-1HF10-0AA0(Relay output) 4- 6ES7322-5HF00-0AB0(Relay output) Best regards. H-H Hi dear H_H Thanks for your informative post.Please check the attachment in which 2 DO are connected via 2 diodes to a relay.Is it possible to implement such configuration with SIEMENS modules or external diodes should be bought? Best regards hdhosseini Splitted from Isolated Channel for DO. Attachment red_out.zip (345 Downloads)
	Last edited by: O_Moderator at: 10/4/2010 1:20 PM new subject after splitting Demo Channel on Youtube
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10/3/2010 12:49 PM	Rate (1)
H-H Platinum Member Joined: 7/2/2008 Last visit: 12/21/2025 Posts: 929 Rating: (309)	Hello hdhosseini, Siemens has some digital output modules with internal diodes for parallel operation. The attached PDF has been extracted from S7-400H manual. You can also find which modules have internal diodes when you look at the detailed specification in S7-300 module data. Best regards. H-H Attachment RED-DQ.pdf (434 Downloads)

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This contribution was helpful to 1 thankful Users hdhosseini