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rusman
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Joined: 17-February 07
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Last Seen: 27th February 2007 - 10:23 AM
Local Time: Nov 21 2008, 05:14 PM
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17 Feb 2007
I have to control Emotron VFB form my HMI. I am investigating the detail of its MODBUS implementation. I found to control speed seems it use the following MODBUS message:
01 06 26 FB A0 40 8A 83 the problem is registed number 26 FB is not defined in the serial protocol manual and value of A0 40 is seems not related to the value i set around/less than 50 rpm. I believe the bit A15 should be = 0 (1 rpm = 1 LSB). The A0 40 actually vary to such as: A0 41, A0 2A, 9C 48, C2 EE at present i test using emosoft and observe the protocol. the problem is this software crash on WIN XP and it does not have access to rpm data for my HMI. I am desperate, Pls help me to interpret this message. My app is simply setting RPM value and read its RPM/some alarm statuses. monitored via its existing serial MODBUS. |
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Lo-Fi Version | Time is now: 21st November 2008 - 09:14 AM |
