Jazz, M91 PLCs and U90Ladder
Talk about issues related to Jazz, M91 PLCs, and the U90Ladder software
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Hi; Have you reviewed how VisiLogic Handles Modbus register addressing? MODBUS Help is hard to Find in Help, but start here: ( there is a lot of info there- just well hidden ) Help, Index, MODBUS Find and look at Slave Addressing. Notice the SAMBA ( Vision Color) addressing is set up in HEX ( Base 16) Know how to convert Decimal to Hex and back -- Unitronics will do it automatic , but beware ! in the example illustrated 7028 is Hex 0x7028 = 28712 decimal So is 8320 Decimal or Hex? 8320 Decimal = 0x2080 ( H-2080) 0x8320 Hex = -31968 decimal ( MI's are Integers +/- 32767) Just something to consider DanT -
Glad to report that problem here has been solved!! As it turns out, the problem is VMWare and U90s inability to communicate properly in that environment. Installed U90 in the non-VM Win 10, and once we were able to run it with admin privileges (grrr, corporate computing systems...) it communicates like it should with any of the 4 USB to serial adaptors we'd amassed. I have not seen any reference by Unitronics to U90's compatibility with VMs. -
Hi, maybe you have the latest firmware in in Samba. Please use Visilogic 9.8.65 and download firmware from this version for test. Write back about the test results Some tips in topic -
Hi I am trying to connect a Samba PLC to a SEW MDX61B VSD via Ethernet and using Modbus TCP. Using the function blocks in the Samba program I can get it to connect to the SEW VSD but when I try and read an address which the SEW guys say is correct, 8320 which is the encoder position it shows a status fault code of 7. I can connect the same program to a Jazz PLC and read an address in it. The Samba is the Master and SEW the slave, can someone help, I think it looks like a case of just the wrong address or maybe an extra number before it Thanks Phil -
I was working upstairs when my wife shouted up to me. "Do you ever get a sharp, stabbing pain, like someone's got a voodoo doll of you and they're pushing needles into it?" I was a bit confused by the question, but I answered honestly. "No, never." "How about now?" she asked....... 🪡
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