I have (assumably) 2 identical setups of CDS 3.5 SP7.
Previously I was configuring the gateway on the first machine with the following code:

        gateway_guid = '3261a15d-434d-4868-9e1f-1bfa38e92408'; # HARDCODED_VALUE, gateway_guid = self.device.get_gateway()
        gateway_dev_addr = device_address   # HARDCODED_VALUE
   
        log.debug('Gateway {} set with GUID: {}'.format(str(gateway_guid),str(gateway_dev_addr)));
        self.device.set_gateway_and_address(gateway_guid, gateway_dev_addr);

Now that I have a 2nd machine, I wanted to check if it is still working and I got the error:

ValueError: Gateway 3261a15d-434d-4868-9e1f-1bfa38e92408 not found.

I thought the GUID has changed so I modified to code to use the get_gateway method and suprisingly that gave the exact same GUID,
and along with it, the result is also the same.
No matter whether I use the harcoded or the 'dynamic' way, on my 2nd machine I get the above exception.

Any idea what could be wrong?

Hi etamgul.

Getting the gatewayPath in codesys.

With CODESYS V3.5 SP8 we introducted a much better API for handling gateways and addresses. You can add, configure, find and remove gateways and also scan the network for available devices.

BR
Martin

Oh it works now (I tried what you suggested but by itself setting once the gateway is not enough).

I had to set the project file to save the network settings, save the project and then the gateway guid I got previously turned to be valid.

So until one checks that save parameter option in a project and configures the gateway at least once,
no matter whether the gateway guid is valid, codesys scripting will throw this exception

Could some please post an example about how to set the gateway with new API available in CODESYS V3.5.8.0.

I have seen in the online help that there are some interface (IScriptGateways & IScriptGateway) available.
But I do not know how to use them.

Thanks.

Originally created by: M.Schaber

Hi,

Here are some snippets using the new functions:
Configuring a device via gateway name and device IP addres:

proj = projects.open(path)
dev = proj.find("Device")[0]
dev.set_gateway_and_ip_address("Gateway-1", "127.0.0.1")

printing all available gateway drivers:

def printGatewayDriver(drv):
   print("BEGIN")
   print("GW driver: {} Guid={}".format(drv.name, drv.guid))
   for param in drv.gateway_parameters:
      print("Id={} Name={} Desc.={} ParamType={} DefaultValue={}".format(param.id, param.name, param.description, param.parameter_type, param.default_value))
   print("END")
   
print("------ Available gateway drivers -----")
for drv in online.gateway_drivers:
   printGatewayDriver(drv)

print all gateway parameters for the TCP/IP driver:

Zitat:
tcpDriver = online.gateway_drivers["TCP/IP"]
tcpParams = tcpDriver.gateway_parameters
for param in tcpParams:
print("id: %s, name: %s, description: %s" % (param.id, param.name, param.description))

Adding a new gateway:

secondGWName = "Gateway-QS"
params = { 0: "serverqs", 1: "1217"}
tcpDriver = online.gateway_drivers["TCP/IP"]
newGw = online.gateways.add_new_gateway(secondGwName, params, tcpdriver)

HTH,
Markus