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demo_modbus.c
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demo_modbus.c
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#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include "fbdrt.h"
// #define SILENT
#define CICLCOUNT 1000000
const unsigned char description[] = {0x16, 0x16, 0x21, 0x21, 0x94, 0x02, 0x00, 0x03, 0x00, 0x64, 0x00, 0x00, 0x00, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x02, 0x03, 0xFF, 0xFF, 0xFF, 0xFF, 0x08, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE5, 0x0C, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x90,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC8, 0x40, 0x0A, 0x80, 0x00, 0x00, 0x6E, 0x6F, 0x6E, 0x61, 0x6D, 0x65, 0x00, 0x31, 0x00, 0x32, 0x30, 0x2D, 0x31, 0x31, 0x2D, 0x32, 0x31, 0x20, 0x31,
0x38, 0x3A, 0x32, 0x37, 0x00, 0x28, 0x00, 0x00, 0x00, 0x64, 0x00, 0x01, 0x00, 0x20, 0x00, 0x02, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x2D, 0x00, 0x37, 0x00, 0x1F, 0x00, 0x00,
0x00, 0x02, 0x00, 0x01, 0x02, 0x54, 0x3D, 0x25, 0x2E, 0x32, 0x66, 0x00, 0x00, 0x88, 0x39, 0x42, 0x22};
#define MEM_SIZE 2048
char memory[MEM_SIZE];
void msleep(int ms)
{
struct timespec ts;
ts.tv_sec = ms / 1000;
ts.tv_nsec = (ms % 1000) * 1000000;
nanosleep(&ts, NULL);
}
tSignal FBDgetProc(char type, tSignal index)
{
time_t my_time;
struct tm * timeinfo;
//
time(&my_time);
timeinfo = localtime (&my_time);
#ifndef SILENT
switch(type) {
case 0:
printf(" request InputPin(%ld)\n", index);
// имитация RTC
switch(index) {
case GP_RTC_HOUR:
return timeinfo->tm_hour;
case GP_RTC_MINUTE:
return timeinfo->tm_min;
case GP_RTC_SECOND:
return timeinfo->tm_sec;
case GP_RTC_DAY:
return timeinfo->tm_mday;
case GP_RTC_MONTH:
return timeinfo->tm_mon+1;
case GP_RTC_YEAR:
return timeinfo->tm_year+1900;
default:
return 0;
}
case 1:
printf(" request NVRAM(%ld)\n", index);
return 0;
}
#endif
return 0;
}
void FBDsetProc(char type, tSignal index, tSignal *value)
{
#ifndef SILENT
switch(type)
{
case 0:
printf(" set OutputPin(%ld) to value %ld\n", index, *value);
break;
case 1:
printf(" set NVRAM(%ld) to value %ld\n", index, *value);
break;
}
#endif
}
#ifdef USE_HMI
// рисование графических примитивов
//
// рисование залитого прямоугольника
void FBDdrawRectangle(tScreenDim x1, tScreenDim y1, tScreenDim x2, tScreenDim y2, tColor color)
{
printf("draw rectangle: x1:%d y1:%d x2:%d y2:%d color:%d\n", x1, y1, x2, y2, color);
}
// рисование текста
void FBDdrawText(tScreenDim x1, tScreenDim y1, unsigned char font, tColor color, tColor bkcolor, bool transparent, char *text)
{
printf("draw text: x1:%d y1:%d font:%d color:%d bkcolor:%d text:'%s'\n", x1, y1, font, color, bkcolor, text);
}
// рисование линии
void FBDdrawLine(tScreenDim x1, tScreenDim y1, tScreenDim x2, tScreenDim y2, tColor color)
{
printf("draw line: x1:%d y1:%d x2:%d y2:%d color:%d\n", x1, y1, x2, y2, color);
}
// рисование залитого эллипса
void FBDdrawEllipse(tScreenDim x1, tScreenDim y1, tScreenDim x2, tScreenDim y2, tColor color)
{
printf("draw ellipse: x1:%d y1:%d x2:%d y2:%d color:%d\n", x1, y1, x2, y2, color);
}
// рисование картинки
void FBDdrawImage(tScreenDim x1, tScreenDim y1, tScreenDim image)
{
printf("draw image: x1:%d y1:%d index:%d\n", x1, y1, image);
}
// завершение рисования экрана (копирование видеообласти)
void FBDdrawEnd(void)
{
printf("draw end -------------------------------------\n");
}
#endif
int main(void)
{
int res,i;
tModbusReq mbrequest;
tModbusRTUsettings modbusSettings;
//
res = fbdInit(description);
if(res <= 0) {
printf("result = %d\n", res);
return 0;
}
if(res > MEM_SIZE) {
printf("not enough memory\n");
return 0;
}
//
fbdSetMemory(memory, true);
printf("memory request size = %d\n", res);
//
printf("FBD_OPT_REQ_VERSION: %ld\n", FBD_REQ_VERSION);
printf("FBD_NETVAR_USE: %ld\n", FBD_NETVAR_USE);
printf("FBD_NETVAR_PORT: %ld\n", FBD_NETVAR_PORT);
printf("FBD_NETVAR_GROUP: %ld\n", FBD_NETVAR_GROUP);
printf("FBD_SCREEN_COUNT: %ld\n", FBD_SCREEN_COUNT);
printf("FBD_SCHEMA_SIZE: %ld\n", FBD_SCHEMA_SIZE);
printf("FBD_HINTS_COUNT: %ld\n", FBD_HINTS_COUNT);
//
printf("fbdModbusUsage(void): %d\n", fbdModbusUsage());
printf("FBD_MODBUS_RETRYCOUNT: %ld\n", FBD_MODBUS_RETRYCOUNT);
//
if(fbdModbusGetSerialSettings(&modbusSettings)) {
printf("Modbus RTU settings:\n");
printf(" baudRate: %d\n", modbusSettings.baudRate);
printf(" parity: %d\n", modbusSettings.parity);
printf(" stopBits: %d\n", modbusSettings.stopBits);
printf(" timeout: %d\n", modbusSettings.timeout);
} else {
printf("Modbus RTU settings not present\n");
}
// main loop
i=0;
while(i < CICLCOUNT) {
i++;
fbdDoStepEx(100, 0);
//
if(fbdGetNextModbusRTURequest(&mbrequest)) {
printf("New Modbus request:\n");
printf(" IP:%ld\n", mbrequest.ip);
printf(" SA:%d\n", mbrequest.slaveAddr);
printf(" FC:%d\n", mbrequest.funcCode);
printf(" RA:%d\n", mbrequest.regAddr);
printf(" RC:%d\n", mbrequest.regCount);
printf(" DATA:%ld\n", mbrequest.data.intData);
//
if(mbrequest.slaveAddr == 1) {
fbdSetModbusRTUResponse(i);
} else {
fbdSetModbusRTUNoResponse(0);
}
} else {
printf("no Modbus requests\n");
}
msleep(10);
}
//
return 0;
}