I have a Modbus question. I hope there are some Modbus gurus listening. I am trying to use mb2hal to control a bunch of VFDs on a gang router . I have successfully gotten mb2hal to communicate with the drives but...
Several of the registers of these drives use a format of "A chain of two 8 bit unsigned integers" to quote the manual. Basically the drive is using 1 register to write two different pieces of data. The mb2hal component is writing both of these data points to a single s32 pin. How do I separate this into the two numbers I can use. Is there a component that can divide an s32 into 4 u8 numbers? Would I then have to change the 2 u8 numbers I need back to u32 numbers to be able to use them for anything? I've also asked the question here. http://www.linuxcnc.org/index.php/english/forum/25-classicladder/26456-modbus-examples?start=30#34112 A pdf copy of the drives manual is attached to the first post of the thread. -- ======================================== Todd Zuercher mailto:[email protected] ======================================== ------------------------------------------------------------------------------ AlienVault Unified Security Management (USM) platform delivers complete security visibility with the essential security capabilities. Easily and efficiently configure, manage, and operate all of your security controls from a single console and one unified framework. Download a free trial. http://p.sf.net/sfu/alienvault_d2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
