 |
 |
 FAQ Forum Help Official CCS Support  Search
 Register
 Profile  Log in to check your private messages  Log in
|
CCS does not monitor this forum on a regular basis. Please do not post bug reports on this forum. Send them to CCS Technical Support |
| Search found 14 matches |
| Author | Message |
|---|---|
 Topic: modbus ascii and rtu selection. |
|
| micro_man Replies: 5 Views: 10985 |
 Forum: General CCS C Discussion Posted: Thu Nov 26, 2015 4:55 am Subject: modbus ascii and rtu selection. |
| Thanks Ttelmah
So what would be the possible way to do a selection between MODBUS ASCII and MODBUS RTU... I am seeing in the modbus driver file all these initialization are pre-processor directiv ... |
|
| Topic: modbus ascii and rtu selection. |
|
| micro_man Replies: 5 Views: 10985 |
Forum: General CCS C Discussion Posted: Wed Nov 25, 2015 10:51 pm Subject: modbus ascii and rtu selection. |
| thanks temtronic
I tried a little code but it is not working as i want #include <18f46k22.h> #fuses HSH,PUT,NOWDT,NOBROWNOUT #use delay(crystal=20M) #use ... |
|
| Topic: modbus ascii and rtu selection. |
|
| micro_man Replies: 5 Views: 10985 |
Forum: General CCS C Discussion Posted: Wed Nov 25, 2015 6:08 am Subject: modbus ascii and rtu selection. |
| Hi
I am using PIC18f46k22 My ccs compiler version is 4.124 I am communicating two devices (based on Modbus) with my microcontroller. One device is based on RTU and second one is based on ASCII ... |
|
| Topic: putc and printf |
|
| micro_man Replies: 1 Views: 5627 |
Forum: General CCS C Discussion Posted: Fri Oct 09, 2015 12:20 am Subject: putc and printf |
| Hi,
I have a very simple query. I want to send a number using serial port. e.g int a=1; i want to receive 01 instead of 1 at the receiver side.for this purpose i use putc command like that ... |
|
| Topic: CRC and Parity error indication |
|
| micro_man Replies: 1 Views: 4901 |
Forum: General CCS C Discussion Posted: Sat Aug 17, 2013 6:49 am Subject: CRC and Parity error indication |
| Hi,
I am working on modbus 485 (RTU mode). I want to monitor the CRC and Parity Errors, how many times these error comes. Is there any function in modbus driver file though which i come to know and ... |
|
| Topic: sending coils data from master to slave |
|
| micro_man Replies: 10 Views: 16356 |
Forum: General CCS C Discussion Posted: Mon Jul 29, 2013 2:29 am Subject: sending coils data from master to slave |
| i simplify the program as follows
MASTER #include "16f870.h" #fuses HS,NOLVP,NOWDT,NOBROWNOUT,PROTECT, PUT #use delay(clock=20M) #define MODBUS_TYPE MODBUS_TYPE_MASTER # ... |
|
| Topic: sending coils data from master to slave |
|
| micro_man Replies: 10 Views: 16356 |
Forum: General CCS C Discussion Posted: Thu Jul 25, 2013 1:17 am Subject: sending coils data from master to slave |
| guys any idea... | |
| Topic: sending coils data from master to slave |
|
| micro_man Replies: 10 Views: 16356 |
Forum: General CCS C Discussion Posted: Wed Jul 24, 2013 3:43 am Subject: sending coils data from master to slave |
| The problem is slave not responding.
I have some leds on the slave side. When master will send data to the slave, according to the coil bits leds will be on and off. Firstly i write a program for sl ... |
|
| Topic: sending coils data from master to slave |
|
| micro_man Replies: 10 Views: 16356 |
Forum: General CCS C Discussion Posted: Wed Jul 24, 2013 2:05 am Subject: sending coils data from master to slave |
| I look into the modbus driver file and found that data is send in terms of an array e.g values
exception modbus_write_multiple_coils(int8 address, int16 start_address, int16 quantity, ... |
|
| Topic: sending coils data from master to slave |
|
| micro_man Replies: 10 Views: 16356 |
Forum: General CCS C Discussion Posted: Tue Jul 23, 2013 5:40 am Subject: sending coils data from master to slave |
| when i change the coil variable manually.it send the data to slave
e.g unsigned int8 coils=0x01,unsigned int8 coils=0x02,unsigned int8 coils=0x03 slave get those values. But i want to do it autom ... |
|
| Topic: sending coils data from master to slave |
|
| micro_man Replies: 10 Views: 16356 |
Forum: General CCS C Discussion Posted: Tue Jul 23, 2013 1:51 am Subject: sending coils data from master to slave |
| Hi
i want to send coils data from modbus master to slave. first i write the slave program and sends the data from modbus poll (using PC). it works well. the code for the slave is #include " ... |
|
| Topic: multiplication problem |
|
| micro_man Replies: 7 Views: 8928 |
Forum: General CCS C Discussion Posted: Wed Jun 05, 2013 2:51 am Subject: multiplication problem |
| I have already initialized result variable b as an int16 bit.Should i also initialize a as an int16 bit? | |
| Topic: multiplication problem |
|
| micro_man Replies: 7 Views: 8928 |
Forum: General CCS C Discussion Posted: Wed Jun 05, 2013 2:27 am Subject: multiplication problem |
| thanks guys for your replies
are you saying that i can achieve the result by doing something like b= PRODH*256 + PRODL; how i search the forum, i mean what should i write in the search bar ... |
|
| Topic: multiplication problem |
|
| micro_man Replies: 7 Views: 8928 |
Forum: General CCS C Discussion Posted: Wed Jun 05, 2013 2:03 am Subject: multiplication problem |
| guys its a very simple program.simply multiplying a variable with 100 and store it in another variable.but the result store in the variable is incorrect.
here is the program #include <18F252. ... |
|
All times are GMT - 6 Hours |
Powered by phpBB © 2001, 2005 phpBB Group