Mitsubishi Electric FR-F820-00046 Instruction Manual page 493

Microsoft® Visual C++® (Ver.6.0) programming example
#include <stdio.h>
#include <windows.h>
void main(void){
HANDLE
DCB
COMMTIMEOUTS
char
char
char
int
int
BOOL
int
int
// **** Open COM1 port
hCom = CreateFile("COM1", (GENERIC_READ | GENERIC_WRITE), 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
if(hCom != NULL) {
// Set COM1 port communication
****
G e C t o m
h D c b D .
h D c b B .
h D c b B .
h D c b P .
h D c b S .
b R t e =
if(bRet == TRUE) {
}
C o l s e H
}
}
492
5. PARAMETERS
5.12 (N) Communication operation parameters
hCom; // Communication handle
hDcb; // Structure for setting communication settings
hTim; // Structure for setting timeouts
szTx[0x10]; // Send buffer
szRx[0x10]; // Receive buffer
szCommand[0x10];// Command
nTx,nRx; // For storing buffer size
nSum; // For calculating sum code
bRet;
nRet;
i;
****
****
m S a t e t h ( C o m & , h D c b ; )
C B e l n g h t = s z i e o ( f D C B ; )
a u d R a e t = 1 9 2 0 ; 0
y e t S z i e = ; 8
r a y t i = ; 2
o t p B s t i = ; 2
S e C t o m m S a t e t h ( C o m & , h D c b ; )
// Set COM1 port timeout
**** ****
G e C t o m m i T m e o u s t h ( C o m & , h i T m ; )
h i T m . W i r e t T o a t i T l m e o u C t o n s a t t n =
h i T m R . e a d T o a t i T l m e o u C t o n s a t t n =
hTim.ReadTotalTimeoutConstantSetCommTimeouts(hCom,&hTim);// Setting of changed timeout values
// Setting of command for switching the station number 1 inverter to the Network operation mode
****
s r p n i ( f t z s C o m m a n , d 0 " 1 F B 1 0 0 0 0 ; ) "
n T x = s r t e l ( n z s C o m m a n d ; )
// Generate sum code
**** ****
n S u m = ; 0
for(i = 0;i < nTx;i++) {
n S u m + = z s C o m m a n [ d ; ] i
n S u m & = 0 ( f x ; ) f
}
// Generate send data
**** ****
memset(szTx,0,sizeof(szTx));
m e m s e ( t z s R x 0 , s , z i e o ( f z s R x ; ) )
sprintf(szTx,"\5%s%02X",szCommand,nSum);// ENQ code + send data + sum code
n T x = 1 + n T x + ; 2
nRet = WriteFile(hCom,szTx,nTx,&nTx,NULL);
// Send
**** ****
if(nRet != 0) {
nRet = ReadFile(hCom,szRx,sizeof(szRx),&nRx,NULL);
// Receive
**** ****
if(nRet != 0) {
// Display receive data
****
for(i = 0;i < nRx;i++) {
printf("%02X ",(BYTE)szRx[i]);// Output received data to console
// Display ASCII code in Hexadecimal' In case of 0', "30" is displayed.
}
printf("\n\r");
}
}
a n d e l h ( C o m ; )
/ / G t e c
/ / t S u r c
/ / C o m m
/ / D a a t
/ / P r a y t i
/ / S o t p
/ / S e t t n i
/ / G t e c
1 0 0 ; 0 / / W i r e t
1 0 0 ; 0 / / R e a d
/ / S e n d
/ / S e n d
/ / n I t i a i z i l
/ / C a c l u
/ / M a k s
// Initialize send buffer
/ / Initialize receive buffer
/ / E N Q
****
/ / C o l s e
r u e r t n c o m m u n c i t a o i n i f n r o m t a o i n
u t e r s z i e s e t t n i g
u n c i t a o i n s p e e d = 1 9 2 0 0 b p s
e l n g h t = 8 b s t i
c h e k c t a e v e n n u m b e s r
b t i = 2 b s t i
g f o c h a n g e d c o m m u n c i t a o i n i f n r o m
r u e r t n i t m e o t u v a u l e s
i t m e o t u 1 s e c o n d
i t m e o t u 1 s e c o n d
****
d a a t ( N E T o p r e t a o i n w t i r ) e
d a a t s z i e
e s u m d a a t
a l e t s u m c o d e
d a a t
c o d e + n u m b r e f o s e n d d a a t + n u m b
c o m m u n c i t a o i n p o t r
t a o i n
r e f o s u m c o d e s