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SB 1222 6ES7 222-1AD30-0XB0

Created by: Maxence at: 11/25/2014 2:56 PM (2 Replies)

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11/25/2014 2:56 PM	Rate (0)
Maxence Posts: 2 Rating: (0)	Dear All, I am quite a beginner with PLC so there is some chance my question to be stupid... Sorry for that. I tried to find any topics related to my question but did not find out on the forum. I am using a S7-1200 PLC (CPU 1212C) and plugged a Signal Board DQ 4x 5VDC. In my programm, I am setting output of the SB to level 1 and I can see on the LED that it is on when I want so I figure out there is a 5VDC signal between the L and the DQ pins... Putting an oscilloscope, I can only see a perfectly 0VDC output. What makes me feel stupid is the L+,M pins with a 5V and a arrow entering the board.... Am I supposed to poser it with 5VDC??? Thanks for your help! Maxence
Maxence Posts: 2 Rating: (0)
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11/25/2014 3:11 PM	Rate (0)
LarryAm Silver Member Joined: 9/19/2011 Last visit: 8/19/2025 Posts: 140 Rating: (33)	You have to connect a +5VDC supply between the L+ and M terminals.

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11/25/2014 5:25 PM	Rate (0)
Maxence Posts: 2 Rating: (0)	Hi, Indeed, it works better . It would have been perfect if 5VDC was directly in the SB. Thank you for your quick answer! Maxence
Maxence Posts: 2 Rating: (0)
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This contribution was helpful to 1 thankful Users LarryAm

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