Good Afternoon Guru's
I'm currently working on a project where we are trying to control 5 AB Power-flex 700 VFD's with Mod-bus Protocol Via a 20-Comm-H card and a Pro-soft MVI69-MCM card with a CompactLogix L35E processor. I have established communication with the drives, but now I cannot command the drives to do anything, as-well I am receiving false data from the drives. The drives where setup by Rockwell Automation so I assume they have properly setup the drives to receive commands via the communication port. I have used the Mod-bus addresses that Allen Bradley has printed in the user manual for the 20-comm-h cards, but when I read in single coils (1x addresses) I get values such as 1024 or 1025 when I should be receiving 0's or 1's. I have attached the Pro soft configuration file, if anyone has done this before your help will be greatly appreciated in helping me get this figured out.
Thanks for your time.
Andrew
I'm currently working on a project where we are trying to control 5 AB Power-flex 700 VFD's with Mod-bus Protocol Via a 20-Comm-H card and a Pro-soft MVI69-MCM card with a CompactLogix L35E processor. I have established communication with the drives, but now I cannot command the drives to do anything, as-well I am receiving false data from the drives. The drives where setup by Rockwell Automation so I assume they have properly setup the drives to receive commands via the communication port. I have used the Mod-bus addresses that Allen Bradley has printed in the user manual for the 20-comm-h cards, but when I read in single coils (1x addresses) I get values such as 1024 or 1025 when I should be receiving 0's or 1's. I have attached the Pro soft configuration file, if anyone has done this before your help will be greatly appreciated in helping me get this figured out.
Thanks for your time.
Andrew