MqttIOItemType Property

General info

Label

Item Type

Description

The type of data item.

Data type

Int32

Default value

1 (syslib.model.codes.MqttIoItemType.PUBLISHER)

Type

CodingGroup

Code

12468

Symbolic name

MODEL_PROP_MQTTIOITEMTYPE

Lua access code

syslib.model.properties.MqttIOItemType

Available since

1.72

Parent classes: IoTypeMqtt

Attributes

Name	Tooltip
PROP_CONFIGURABLE	The property is configurable and can be changed with DataStudio and the various inmation APIs.
PROP_VISIBLE	The property is visible in DataStudio and can be read by the inmation APIs.
PROP_HAS_DEFAULT	The property has a default value as standard.

Codings

Coding group: MqttIoItemType

Name	Code	Label	Tooltip
PUBLISHER	1	Publisher	Publisher.
SUBSCRIBER	2	Subscriber	Subscriber.

Name

Code

Label

Tooltip

PUBLISHER

1

Publisher

Publisher.

SUBSCRIBER

2

Subscriber

Subscriber.

Examples

Read from or write to the MqttIOItemType property.

Lua
C#

-- Read from the MqttIOItemType
syslib.getvalue("<OBJECT FULL PATH>.MqttIOItemType")

-- Write to the MqttIOItemType
syslib.setvalue("<OBJECT FULL PATH>.MqttIOItemType",
    syslib.model.codes.MqttIoItemType.PUBLISHER)

TcpConfig tcpcfg = new TcpConfig() { HostNameOrIp = "localhost", Port = 6512 };
SecurityCredentials sc = new SecurityCredentials() { ProfileName = "<username>", Password = "<password>" };
StatelessInterface sli = new StatelessInterface(tcpcfg);

// Read from the MqttIOItemType
Result result = sli.ReadValue(sc, new ReadItem("<OBJECT FULL PATH>.MqttIOItemType"));
// Write to the MqttIOItemType
Result result = sli.WriteValue(sc, new WriteItem(MqttIoItemType.PUBLISHER, "<OBJECT FULL PATH>.MqttIOItemType"));

A switch-like function of the codings.

function get_coding_name(code)
    local _miit = syslib.model.codes.MqttIoItemType
    if _miit.PUBLISHER==code then return 'PUBLISHER'
    elseif _miit.SUBSCRIBER==code then return 'SUBSCRIBER'
    end
end
return get_coding_name(syslib.model.codes.MqttIoItemType.PUBLISHER)