snmp hotlink

SNMP
The default url for the task is “127.0.0.1:163", which you should target to the external device for every task's configuration..

And the address field shall be entered with OID (Object Identifier), such as "1.3.6.1.2.1.1.1.0," which corresponds to the "sysDescr" object, and usually associated with a data type of "Octet String." You should ensure that the configured address will have the appropriate access rights for the target object, as some objects are read-only or even cannot be read at all.

Below is the sample of configuration.

"task": [
     {
  	"id": "LJ1000",
  	"url": "127.0.0.1:163",
  	"trigger": [ "1000" ],
  	"timeout": 3000,
  	"community": "public",
  	"data": [
    	  {
      	     "$csv": "dxsnmp.csv"
          }
        ]
     }
  ]

Here's the sample of the dxsnmp.csv

disable,name,description,address,type,length,default,scale
false,"tag1","this is description","1.3.6.1.2.1.1.4.0","string",-1,"",1
false,"tag2","this is description","1.3.6.1.2.1.1.5.0","string",-1,"",1
false,"tag3","this is description","1.3.6.1.2.1.1.6.0","string",-1,"",1

NOTE
Please ensure the community name is the same or else the communication cannot be established.

TIPS
A *.all.csv that contains all addresses of the linked device will be automatically generated for you to copy any desired addresses conveniently.

Hostlink

Example: configuration file (.json)
{
	"id": "module01",
	"update": [ "1000" ],
	"task": [
		{
	            "enable": true,
                    "id": "HostLink01",
                    "desc": "Omron HostLink driver",
                    "url": "COM3",
                    "trigger": [
                                "1000"
                               ],
                    "baudRate": 9600,
                    "dataBits": 7,
                    "stopBits": 2.0,
                    "parity": "e",
                    "dataFormat": "CDAB",
                    "unitNum": 0,
                    "timeout": 5000,
                    "readOnly": false,
                    "watchdog": 5000,
                    "data": [
                              {
                                 "$csv": "dxhostlink.csv"
                              }
                            ]
		}
	]
}

Below are the parameters for setting up the task. If the parameters are not specified, default values will be used in case there are any.

URL
This parameter is used to connect to the PLC either through serial port or ip address. If an ip address is used, hostlink over tcp will be used.

baudRate
Baud rate of current connection serial port information. Default value is 9600.

dataBits
The length of data bits per byte. Default value is 7.

stopBits
The number of stop bits per byte. Default value is 2.0.

parity
The parity-checking protocol. Default value is even. The accepted format is like below:
“o”/”odd”: odd parity
“e”/”even”: even parity
“s”/”space”: space parity
“m”/”mark”: mark parity
“n”/”none”: none parity

dataFormat
Parsing format for multibyte data. The accepted format consists of “BADC”, “CDAB”, “DCBA”, and “ABCD”. Default value is ABCD format.

unitNum
Unit number of PLC. Default value is 0.

type
Possible types are  “standard” and “cmode”. Default type is standard.

mode
When PLC is connected through cmode. The mode of the connection can be set to “Run”, “Program”, or “Monitor”. The default mode will be “Run”.

Example of csv configuration

disable,name,description,address,type,length,scale
false,"CIO","","CIO200","int16",-1,1
false,"CIO.0","","CIO200.0","bool",-1,1

Supported address for standard mode. Standard mode supports bit and word polling.

Supported address for cmode. C-mode only supports word polling