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Title: PIC16F877 and Modbus Post by: kyawmyo on April 11, 2008, 03:45:23 03:45 Hi,
I am trying to develop an application that will interface with RS485 for Modbus protocol. Could anybody give me useful information regarding with PIC 16F877. Rgds Title: Re: PIC16F877 and Modbus Post by: enen on August 07, 2008, 03:58:49 15:58 Hi ,
firstly Pic16f877 is not enough memory for Modbus. you should 14f852 or more memory size pics. Title: Re: PIC16F877 and Modbus Post by: jorge7458 on August 07, 2008, 06:07:10 18:07 The modbus is not a complex protocol and he would not have inconvenience by heart with a 16f877. he would Be necessary to see that it is what is wanted to send.
Jorge Title: Re: PIC16F877 and Modbus Post by: j0k3r on August 07, 2008, 10:27:47 22:27 Look on the folder examples from the CCS compiler for the files:
ex_modbus_slave.c and ex_modbus_master.c they have what you want..... and, yes they use a Code: #include <16f877a.h> Title: Re: PIC16F877 and Modbus Post by: microtest on August 21, 2008, 06:29:30 18:29 exelent i am now testing it and post my schematic next time
Title: Re: PIC16F877 and Modbus Post by: arash_tah on November 30, 2009, 04:52:04 04:52 Hi mikrotest I want to connect my micro to PLC via MODBUS do u have any idea?
can u share your sch and any detail in this regard |