https://forge.codesys.com/forge/talk/CODESYS-V2/thread/5d8b2c2193/2020-02-27T20:55:46.845000ZRecent posts to Com_mod_mast HELP!2020-02-27T20:55:46.845000Z2020-02-27T20:55:46.845000ZAnonymoushttps://forge.codesys.com/u/*anonymous/https://forge.codesys.com5807a28e8d8654dd3fea32820fc965000f62ec4a

<div class="markdown_content"><p><em>Originally created by:</em> electotechnologist</p> <p>All Sorted, Don't worry!</p></div>

2020-02-27T20:55:45.413000Z2020-02-27T20:55:45.413000ZAnonymoushttps://forge.codesys.com/u/*anonymous/https://forge.codesys.com2d15593c0fae04251f206b3215bedc7dc82a31f3

<div class="markdown_content"><p><em>Originally created by:</em> electotechnologist</p> <p>Im am using a PM564-T-ETH PLC and i am trying to communicate to a integra CI3 Power meter via MODBUS RTU RS485. I believe i have correctly wired the RS485 link correctly (including terminating and pull up resistors). I have scoped the RS485 line and their is some sort of communication along the line, well at least when i send a command from the PLC (PLC is Master). But there seams to be no response from the power meter. This is the first time i have tried using this command, and i am programming in CFC, so maybe i am thinking i am not syn-taxing my function block properly.</p> <p>I'm am trying to read a double word value from the meter starting at MODBUS HEX Address 0004 (HI byte first) and each hex address holds 1 word. I believe i have set up the com properties correctly in ABB builder.</p> <p>If any one has successfully used this function before with the ABB AC500 series PLC's, could you please help me!</p> <p>Thank you in Advance<br/> Levi Martin</p> <p>Go The ALL BLACKS!!!</p></div>