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CP-341 MODBUS MASTER, how to communicate to more than one device...?

Created by: blueanchor at: 8/13/2009 5:38 PM (4 Replies)

8/13/2009 5:38 PM	Rate (0)
blueanchor Posts: 4 Rating: (0)	I have my cp-341 (modbus master) working with no problems. What I want to do is to enable my program to read from mulitiple devices. I am unsure of the wayto go about changing the standard program to do this. Anyone shed any light for me...?
blueanchor Posts: 4 Rating: (0)
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8/19/2009 6:15 AM	Rate (0)
jey@tokyo Experienced Member Joined: 8/1/2008 Last visit: 1/17/2025 Posts: 40 Rating: (0)	Hi If it is necessary, the driver of each device is made. And, it only has to move to the following processing by confirming transmission driver's Done (Or, ERROR) if it is a communication finished from mastering because of the transmission. Moreover, after reception driver's NDR (Or, ERROR) is confirmed, it moves it to the following processing if data from the slave is received. In this forum, there is a sample of Modbus "EthModbus" and look, please referring. By the way, why did you think that it was unsure?

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8/26/2009 7:13 AM	Rate (0)
patel Posts: 134 Rating: (2)	HI..CAN U SEND ME ANY LINK OR SOMETHING THAT LEADS ME TO THE SAMPLE PROGRAM THAT U R TALKING.... OR IF U CAN SEND ME THAT MODBUS MASTER SAMPLE PROGRAM IT WILL BE VERY USEFUL TO ME BCOZ RIGHT NOW I M ALSO FACING THE PROBLEM ON MODBUS COMMNICATION...
patel Posts: 134 Rating: (2)
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Joined: 8/1/2008

Last visit: 1/17/2025

Posts: 40

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Hi

It is in this forum.

But Additional work is necessary so that this program may correspond to function codes 05, 06, 15, and 16.

Special Ｔｈａｎｋｓ Late.

10/29/2009 9:48 AM	Rate (0)
how come Posts: 382 Rating: (47)	Dear blueancher & patel, I am late toread your thread. I think this should bewhat you are looking for Multiple Modbus RTU slaves with CP341/CP441 Hope this can give you some help and its not too late with regards, how come?
how come Posts: 382 Rating: (47)	Last edited by: how come? at: 10/29/2009 9:51 AM
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