3150-MCM Slave resoponse to FC 15
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Jeevan
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Tuesday 22 November 2005 8:05:30 pm |
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3150-MCM Slave resoponse to FC 15
Using the 3150-MCM configured as Slave Mode w/Pass Thru Minimum Configuration. (Following the Example Ladder Logic)
Works alright but no response to Function Code 15 (Write Multiple Coil) Also the example does not have any FC 15 handler logic. (It works fine for FC 5 though)
What Ladder Logic we have to write for FC 15 ?
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jsanders
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Monday 12 December 2005 6:30:18 am |
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RE:3150-MCM Slave resoponse to FC 15
The 3150-MCM is our older Modbus Communication module. It has been replaced by the MVI46-MCM, a much better module.
The pass-through logic for the 3150-MCM was never fully developed. Implementation for FC 15 pass-through was not included in the samples.
If you would like to send a request for a more complete sample, you should send your request to: Support@psft.com, Attn: Jason Sanders. He has developed an expanded version of the 3150-MCM pass through logic you could try. It is a beta version and may need some tweaking; but, it will be a place to start.
A better solution would be to try to avoid using pass-through logic altogether; or, upgrade to the MVI46-MCM.
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