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problems with anlog output sm1232,

Created by: Antony Vadakkumcherry at: 3/10/2014 1:15 PM (25 Replies)

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3/10/2014 1:15 PM	Rate (0)
Antony Vadakkumch... Posts: 45 Rating: (0)	Am getting problems with anlog output sm1232, i had moved the analog input value to analog output value on the program analog input is on address %IW112 AND %QW112 RESPECTIVELY, am using SM 1232 AQ4 14 bit resolution, my problem is at the terminal i m not getting at ma current., what wul be the problem, not coming anything for troubleshooting, suppose if i give 10ma at input on addres %iw112 i m getting same value on %qw112., but on the terminals im not getting anythoing hope my quesion understodd pls help me asap
Antony Vadakkumch... Posts: 45 Rating: (0)	Last edited by: GrasserF at: 3/10/2014 1:31 PM new subject after splitting from /tf/WW/en/Posts/92044#top
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3/10/2014 4:42 PM	Rate (0)
BryanG2001 Posts: 113 Rating: (22)	If you are hoping to see a current going out of one terminal and back to the other then you must have a load for it to pass through. What are you putting the mA signal through?
BryanG2001 Posts: 113 Rating: (22)
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3/10/2014 4:58 PM	Rate (0)
Antony Vadakkumch... Posts: 45 Rating: (0)	actuallly i am taking a 4 to 20 ma input to my panel via analog input module and i am splitting this signal to 2 othe systems via analog output module. now i m testing the panel in our workshop, i m injecting the 4 20 mA via an injector and checking the mA at the output terminals , i mnot getting anything at these terminals eventhough i had moved input to both these channels. what i had done is i moved directly the input to 2 output channels , hope its clear
Antony Vadakkumch... Posts: 45 Rating: (0)
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3/10/2014 4:59 PM	Rate (0)
Antony Vadakkumch... Posts: 45 Rating: (0)	i m checking the mA with a multimeter
Antony Vadakkumch... Posts: 45 Rating: (0)
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3/10/2014 6:18 PM	Rate (1)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 1/28/2025 Posts: 15569 Rating: (2470)	Antony Vadakkumcherry i m checking the mA with a multimeter What drives my electrical panel builders crazy on the s7-1200 series is the terminal layouts. They constantly get the inner / outer or upper/lower terminal rows mixed up. The diagram on the module shows the physical layout, but it is not intuitive or they would wire them 100% correct every time. Perhaps your panel builder had a similar problem? What diagnostic status information are you getting from the plc using the online/diagnostic option from the portal project tree?
	science guy
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This contribution was helpful to 1 thankful Users IBN-Service

3/10/2014 7:04 PM	Rate (0)
IBN-Service Posts: 8946 Rating: (999)	huggy_d1 What drives my electrical panel builders crazy on the s7-1200 series is the terminal layouts. ... Oh yes, it is very narrow and "cheap", there is a good chance of break a screw or make some wrong connections...
IBN-Service Posts: 8946 Rating: (999)
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3/11/2014 5:20 AM	Rate (0)
Antony Vadakkumch... Posts: 45 Rating: (0)	i had checking directly on the module terminals , am getting green tick mark and on the diagnostics module exists, ok
Antony Vadakkumch... Posts: 45 Rating: (0)
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3/11/2014 1:46 PM	Rate (0)
LarryAm Silver Member Joined: 9/19/2011 Last visit: 1/17/2025 Posts: 140 Rating: (33)	Troubleshooting suggestions: Compare the attached wiring diagram with the actual module wiring. Be sure that you are measuring on the lower terminal block. Check the value of IW112 and be sure that it has a value other than zero or 32767. Larry Attachment D:\Users\amerlj\s71200_analog.jpg (628 Downloads)

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3/11/2014 1:55 PM	Rate (0)
Antony Vadakkumch... Posts: 45 Rating: (0)	dear larry i m using sm1232 aq4 . i had moved 12000 to the address qw112 which is the address of first channel for that module. i had gone through the diagnostic pages and eveything shows ok, if i give 12000 to qw 112 , i hope i will get some ma at the terminals om and m. i checked this with a multimeter, but i m not getting anything,
Antony Vadakkumch... Posts: 45 Rating: (0)
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3/11/2014 2:26 PM	Rate (0)
0_Einstein Diamond Expert Joined: 7/7/2010 Last visit: 1/28/2025 Posts: 15569 Rating: (2470)	Antony Vadakkumcherry dear larry i m using sm1232 aq4 . i had moved 12000 to the address qw112 which is the address of first channel for that module. i had gone through the diagnostic pages and eveything shows ok, if i give 12000 to qw 112 , i hope i will get some ma at the terminals om and m. i checked this with a multimeter, but i m not getting anything, When checking the mA signal using a multimeter, what signal are you expecting? Between 0m and m you should see 0mA unless you have a common mode problem. Between the +0 and 0m you should be able to insert your multimeter into the circuit and measure the mA in the circuit. If you have a mA stimulator that can inject exact mA of current, you can do that and make sure your program configuration is correct.
	science guy
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