Industry Automation and Control Forum
This forum is addressing industrial automation design & engineering, operations, asset performance, cyber security and digital transformation for Plants & Machines.
Link copied. Please paste this link to share this article on your social media post.
Posted: 2023-10-04 04:25 AM
I've 6-Power Meters(PMM5110) connected Modbus serial ,then to EGX150 then connected to NOC module In M340 PLC ,when tried to connect registers (FLOAT32) through I/O Scanning , only zero's values but in EGX the Values appears in SWAP mode
I need to read the same data into PLC as data appeared in EGX but PLC display Zero's Values
I tried using READ VAR block also but the same result and appears Zero's values although there's polls time and no error function appears .
how to solve it and be noted the datatype of all registers in PM5110 are (FLOAT32)
Link copied. Please paste this link to share this article on your social media post.
Link copied. Please paste this link to share this article on your social media post.
Posted: 2023-10-05 12:22 AM
Hello Salah,
There are many reasons for zero reading, sometimes the lengths of the requested data made this issue. My experience in this type of connection is to request int data instead of real and divide the requested data into multiple requests.
I attached the three steps for the DTM and convert the int data to real data
Link copied. Please paste this link to share this article on your social media post.
Create your free account or log in to subscribe to the board - and gain access to more than 10,000+ support articles along with insights from experts and peers.