lin-epics-modules/motorBase
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- Add communication timeout error check.

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- Added test for "SE" error response; send msg. to system console.
This commit is contained in:
Ron Sluiter
2000-09-05 22:11:58 +00:00
parent 315c262f3e
commit bdde263f84
1 changed files with 18 additions and 2 deletions
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motorApp/NewportSrc/drvPM500.c
+18 -2
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@@ -235,7 +235,7 @@ STATIC int set_status(int card, int signal)
/* Message parsing variables */
char axis_name, status_char, dir_char, buff[BUFF_SIZE],
response[BUFF_SIZE];
int rtn_state;
int status, rtn_state = 0;
double motorData;
cntrl = (struct MMcontroller *) motor_state[card]->DevicePrivate;
@@ -246,7 +246,16 @@ STATIC int set_status(int card, int signal)
/* Request the status and position of this motor */
sprintf(buff, "%cR", axis_name);
send_mess(card, buff, NULL);
recv_mess(card, response, 1);
status = recv_mess(card, response, 1);
if (status > 0)
cntrl->status = NORMAL;
else
{
cntrl->status = COMM_ERR;
motor_info->status |= RA_PROBLEM; /* This terminates the transaction. */
rtn_state = 1;
goto exit;
}
status_char = response[1];
dir_char = response[2];
@@ -337,6 +346,7 @@ STATIC int set_status(int card, int signal)
nodeptr->postmsgptr = NULL;
}
exit:
if (cntrl->status == COMM_ERR)
motor_info->status |= CNTRL_COMM_ERR;
else
@@ -440,7 +450,13 @@ STATIC int recv_mess(int card, char *com, int flag)
len = 0;
}
else
{
com[len-1] = '\0';
/* Test for "system error" response. */
if (strncmp(com, "SE", 2) == 0)
logMsg((char *) "recv_mess(): PM500 system error.\n",
0, 0, 0, 0, 0, 0);
}
Debug(2, "recv_mess(): message = \"%s\"\n", com);
return (len);