ioPAC8600_snmp_agent_service.c File Reference

ioPAC8600 SNMP Agent Application TAG Sample More...

#include "libmoxa_rtu.h"

Functions
void	usage (void)
int	main (int argc, char *argv[])

Detailed Description

ioPAC8600 SNMP Agent Application TAG Sample

Copyright

Moxa Inc.

Date

07-29-2015

Author

TJ Tai

Version

V1.0

SNMP Agent Service Sample

Introduction:
Check DI0 and DI15 status and update to IR tag which is monitor by snmp tagtable
Please use mib browser to monitor snmp tagtable
Example:
./ioPAC8600_snmp_agent_service 
Help:

root@Moxa:/tmp#./ioPAC8600_snmp_agent_service -h
SNMP agent service program.

Usage: ./ioPAC8600_snmp_agent_service [OPTIONS]

Options:
    -i        Slot of DI module [1-9]. Using with -i. Default value: 1
              Ex. ./ioPAC8600_snmp_agent_service -i 1

Library:
TAG APIs
RTUxpress Project file:
ioPAC8600_snmp_agent_service.rtu
(Please right click on the link and ‘Save Target As…’ to save RTUxpress project file and open it with RTUxpress utility)

Function Documentation

void usage

(

void

)

int main	(	int	argc,
		char *	argv[]
	)

/*******************************************************************************
 * Copyright Moxa Inc.
 *
 * TAG Service for SNMP Agent Service Application
 *
 * Date          Author       Comment
 * 07-29-2015    TJ Tai       Created.
 ******************************************************************************/

#include "libmoxa_rtu.h"

/*******************************************************************************
 *
 * Sample code for TAG SNMP Agent Service
 *
 *******************************************************************************/
void usage(void)
{
    printf("%s.\n\n", "SNMP agent service Program");
    printf("Usage: ./ioPAC8600_snmp_agent_service [OPTIONS]\n\n");
    printf("Options:\n");
    printf("\t%-8s Slot of DI module [1-9]. Using with -i. Default value: 1 \n", "-i");
    printf("\t         Ex. ./ioPAC8600_snmp_agent_service -i 1\n");
    printf("\n");
}

int main(int argc, char * argv[])
{
    int rc;
    TAG_ERR_CODE retval = 0;
    TAG_INFO tagInfo;
    UINT32 diSlot = 1, slotMin = 0, slotMax = 9;
    int diChannelAmount = 16;
    char di_tagName[diChannelAmount][TAG_MAX_NAME_SIZE];
    int i, j;
    UINT32 u32Val = 0;
    INT32 bitVal = 0;
    INT32 ch00Val = 0;
    INT32 ch15Val = 0;
    int chStatus[1];
    char agentServiceStatus[1][TAG_MAX_NAME_SIZE];
    char IRCtl[1][TAG_MAX_NAME_SIZE];

    while(-1 != (rc = getopt(argc, argv, "i:h")))
    {
        switch(rc)
        {
            case 'i':
                diSlot = atoi(optarg);
                if(diSlot < slotMin || diSlot > slotMax)
                {
                    printf("Error parameter: slot: %d\n", diSlot);
                    return -1;
                }
                break;
            case 'h':
            case '?':
            default:
                usage();
                return 0;
        }
    }

    sprintf(agentServiceStatus[0], "Service_SNMPAgent_Status");
    sprintf(IRCtl[0], "S0_IR_BOOL_RW0Example");
    printf("%-10s: %d\n", "DI slot", diSlot);

    retval = MX_RTU_Tag_Init();
    if(retval != TAG_ERR_OK)
    {
        printf("MX_RTU_Tag_Init(), return code = %d.\n", retval);
        return 0;
    }

    while(1)
    {
        // Check Service Init
        retval = MX_RTU_Tag_Read(agentServiceStatus[0], &u32Val, sizeof(u32Val), NULL, NULL);
        if(retval != TAG_ERR_OK)
        {
            printf("MX_RTU_Tag_Read(%s) = %d\n", agentServiceStatus[0], retval);
        }
        if(u32Val == STATUS_RUNNING)
        {
            printf("SNMP Agent Service Init Success.\n");
            break;
        }
        else if(u32Val == STATUS_FAIL)
        {
            printf("SNMP Agent Service Init fail.\n");
            return 0;
        }
        else if(u32Val == STATUS_INIT)
        {
            printf("SNMP Agent Service Initing, please wait ...\r\n");
            sleep(5);
        }
    }

    // Config DI TAG
    for(i = 0; i < diChannelAmount; i++)
    {
        sprintf(di_tagName[i], "S%d_DI%d_DIValue", diSlot, i);
    }

    while(1)
    {

        retval = MX_RTU_Tag_Get_Info(di_tagName[0], &tagInfo);
        if(retval != TAG_ERR_OK)
        {
            printf("MX_RTU_Tag_Get_Info(%s), return code = %d\n", di_tagName[0], retval);
            break;
        }

        retval = MX_RTU_Tag_Read(di_tagName[0], &ch00Val, sizeof(ch00Val), NULL, NULL);
        retval = MX_RTU_Tag_Read(di_tagName[15], &ch15Val, sizeof(ch15Val), NULL, NULL);

        // represent DI0 and DI15 status
        *chStatus = ch00Val*ch15Val;
        

        // update IR tag which is monitor by snmp tagtable
        retval = MX_RTU_Tag_Get_Info(IRCtl[0], &tagInfo);
        if(retval != TAG_ERR_OK)
        {
            printf("MX_RTU_Tag_Get_Info(%s), return code = %d\n", IRCtl[0], retval);
            break;
        }
        retval = MX_RTU_Tag_Write(IRCtl[0], chStatus, tagInfo.tagSize);
        if(retval != TAG_ERR_OK)
        {
            printf("MX_RTU_Tag_Write(%s), return code = %d\r\n", IRCtl[0], retval);
            return 0;
        }

        sleep(1);
    }

    retval = MX_RTU_Tag_Uninit();
    if(retval != TAG_ERR_OK)
    {
        printf("MX_RTU_Tag_Uninit(), return code = %d\n", retval);
    }

    return 0;
}