create new device

[khuenguyen]

Hi admin,

Can I create a new device from sequence?

[AzeoTech]

Yes. You do it with objects. First you have to create comm ports. For example:

CommPort = new(CCommEthernet)

CommPort.Address = Address

CommPort.Port = Port

or for serial:

CommPort = new(CCommSerial)

CommPort.Port = Port

Then to create a device:

CommDevice = new(CCommDevice)

CommDevice.PortObject = CommPort

CommDevice.ProtocolName = "ModbusRTU"

CommPort and CommDevice are global variables. If they go out of scope or are assigned something else, the device or port is destroyed. The port / device probably won't show up in the quick device configuration. You have to use the variables for all comms.

[khuenguyen]

Hi Admin

I create new device as below

global IPServer
global IPDevice

IPServer = new(CCommEthernet)
IPServer.Address = "192.168.1.101"
IPServer.Port = 2009
IPDevice = new(CCommDevice)
IPDevice.PortObject = "IPServer"
IPDevice.ProtocolName = "NULL Protocol"

private i
for (i = 0, i < 10, i++)
   Device.IPDevice.Write("abcdefghijklmnopq" + Chr(13))
endfor

I don't see any error alarm but it not work. I can not send any thing via IPDevice.

[AzeoTech]

PortObject is the actual object reference, not a string:

IPDevice.PortObject = IPServer

[khuenguyen]

I repair it but it still not work. My Server with IP 192.168.1.101:2009 is running good.

If I create device from "Device Configuration", it work normal.

[AzeoTech]

Sorry, its just IPDevice.write() not device.IPDevice.write(). IPDevice is a global variable, not a member variable of device.