// reads register(s) from controller at address to len
// abel_comm_object_read(obj,"n7:90",4)
// will return a ABELDataReturn
// with type 0, len 4
// with num of values at n7:90,n7:91,n7:92,n7:93
ABELDataReturn* abel_comm_object_read(ABELCommObject* obj,char* addr,int len)
{
ABELDataReturn* out;
out = abel_data_return_new();
int type;
type = abel_comm_object_get_device_type(obj);
int x,sts,extsts;
unsigned int temp1, temp2;
struct _data data;
out->len=len;
obj->comm1.tns = obj->comm1.tns + 4;
data=protread3(obj->comm1,addr,len,type,FALSE);
if (data.len == -1)
{
sts = data.data[0];
extsts = data.data[1];
printf ("An error occured. The PLC STS byte is %d, the EXT STS byte is %d\n",sts,extsts);
if (sts != 0xf0)
printf ("Primary Error code is %s\n",errors[(sts/16)]);
if (extsts != 0)
printf ("Extended error code is %s\n",ext_errors[extsts]);
close (obj->comm1.handle);
}
switch (data.name.section)
{
case 0:
if (data.name.floatdata == TRUE)
{
out->type=1;
for (x=0;x<data.len;x=x+2)
{
temp1 = (data.data[x]);
temp2 = (data.data[x+1]);
out->flt[x]=itof(temp1,temp2);
}
}
if (data.name.floatdata == FALSE)
{
out->type=0;
for (x=0;x<(data.len);x++)
out->num[x]=(int)data.data[x];
}
break;
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
for (x=0;x<data.len;x++)
printf ("%02X ",(byte)data.data[x]);
printf ("\n");
}
return out;
}
int main (int argc, char *argv[])
{
struct _comm comm;
struct _data data;
struct plc5stat status;
int count,x,sts,extsts,type;
unsigned int temp1, temp2;
count=0;
if (argc == 3)
count = 1;
if (argc == 4)
count = atoi(argv[3]);
if ((argc < 3) || (argc > 4))
{
printf ("\nThis program will read a register from an Ethernet connected Allen Bradley\n");
printf ("PLC-5. It should also work with a Pyramid Integrator.\n\n");
printf ("Correct Usage:\nab <plc ip addr> <plc register> {<quantity>}\n");
printf ("ab 192.168.10.5 n7:0 - will read one integer from N7:0 on plc 192.168.10.5\n");
printf ("ab 192.168.10.5 n7:30 4 - will read four integers from N7:30 on plc 192.168.10.5\n");
printf ("\n\n");
exit (-1);
}
comm=abel_attach(argv[1],FALSE);
if (comm.error != 0)
{
printf ("Could not connect. Check your address and try again.\n");
exit (-1);
}
status = getstatus (comm,FALSE);
type = PLC5;
if (status.type == 0xde)
type = PLC5250;
if (status.type == 0xee)
type = SLC;
comm.tns = comm.tns + 4;
data=protread3(comm,argv[2],count,type,FALSE);
if (data.len == -1)
{
sts = data.data[0];
extsts = data.data[1];
printf ("An error occured. The PLC STS byte is %d, the EXT STS byte is %d\n",sts,extsts);
if (sts != 0xf0)
printf ("Primary Error code is %s\n",errors[(sts/16)]);
if (extsts != 0)
printf ("Extended error code is %s\n",ext_errors[extsts]);
close (comm.handle);
exit (-1);
}
switch (data.name.section)
{
case 0:
if (data.name.floatdata == TRUE)
{
for (x=0;x<data.len;x=x+2)
{
temp1 = (data.data[x]);
temp2 = (data.data[x+1]);
printf ("%f\n",itof(temp1,temp2));
}
}
if (data.name.floatdata == FALSE)
{
for (x=0;x<(data.len);x++)
printf ("%d\n",(short)data.data[x]);
}
break;
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
for (x=0;x<data.len;x++)
printf ("%02X ",(byte)data.data[x]);
printf ("\n");
}
close (comm.handle);
exit (0);
}