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Linhvct

FX3U and D700 inveter communication !?

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Dear all! I want to control 3 D700 inverters by using "computer link operation protocol" function in PLC FX3U but it still doesn't work. *-*In D700, I set : Pr 79 : 0 Pr 549: 0 Pr340: 10 Pr 117: 1 Pr 118: 192 Pr 119: 10 Pr 120: 2 Pr 124: 0 *-* In FX3U: I choose CH1 check box "operation communication setting" Protocol : "non protocol procedural" Data length: "7bit" Parity: Even Stop bit : 1bit Transmission speed: 19200 pbs H/W type: RS-485 Transmission control procedural: Form1 (without CR,LF) --------------------------------- PLC programme: LD M142 OUT M151 LD M143 OUT M161 ; RUN/STOP COMMAND LD<> K2M150 D40 OR<> K2M160 D41 OUT M77 LD M77 MPS AND<> K2M150 D40 IVDR K1 H0FB H0 K1 IVDR K1 H0ED D900 K1 IVDR K1 H0FA K2M150 K1 AND M8029 MOV K2M150 D40 MRD AND<> K2M160 D41 IVDR K2 H0FB H0 K1 IVDR K2 H0ED D901 K1 IVDR K2 H0FA K2M150 K1 AND M8029 MOV K2M160 D41 ------------------------------ D900: INVERTER 1 FREQUENCY D901: INVERTER 2 FREQUENCY ----------------------------- I don't know where I'm wrong ... the error code is 1 (means no respond from inverter) Please help me!

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The FX3U Communication manual goes through this configuration in detail, with examples. I have an example program somewhere, i will look around and post it.

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I have read FX communication manual and did exactly what it say. The problem is there's no respond signal from inverter and I don't know why >"<

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Ok I have just find out what's wrong Thanks for reading ^_^
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And what was wrong? Posting the solution will help the next person who runs into this same issue.

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On 25/5/2011 at 3:14 PM, Linhvct said:

Ok I have just find out what's wrong Thanks for reading ^_^

Dear Sir.

I have same problem you did have. When I try connect FX5U with Inverter D700 Through RS 485. "  no respond signal from inverter  ". I dont know what wrong is. Please tell me how did you treat that problem.

Thank you so much

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