Use Access to Read from a Topic

you can use flows to read a topic from a tag through the local message broker using an access subscribe node before you begin make sure you create an access api account see create an api account docid\ tgtkwxcl67ya6f65bot2r and manage api accounts docid\ hpndyaz0xvcoxqvk9lpfk for more information step 1 add a device follow the steps to connect a device docid\ rfvijdxz7dbad8mwbisma and configure the following parameters device type simulator driver name generator enable alias topics select the checkbox step 2 add tags after connecting the device, add the following tag see add tags docid\ ioanzd2awqnkuppgee3eh to learn more tag 1 name select s random value generator value type select int64 polling interval enter 5 tag name enter tag 1 after the tag is created, click the copy icon for the topic name for the tag you will refer to this later step 3 create access flow to read a topic from a tag using access in manufacturing connect edge, navigate to the flows manager and create a new flow see create a flow docid ol2gwhtg2gkdjlbr6cai to learn more drag the access subscribe and debug nodes to the canvas and wire them together in manufacturing connect edge, navigate to system > tokens click the action menu for the api account you created previously and select edit topics from the edit topics dialog box, do the following paste the topic name from step 2 in the read topics field, and click add read topic the topic name appears below the topic name field click update return to the flows browser tab and double click the access subscribe node the edit access subscribe node dialog box appears topic name paste the topic name from step 2 if you paste a topic from the tags pane that has not been added to the access read topic field, you will get an error click the edit icon next to the access field return to the system > tokens browser tab and do the following click the action menu for the api account and select view api key click the copy icon next to the api key return to the add new access connect config node dialog box in the flows browser tab and do the following api key paste the api key you copied click add or update click done and then click deploy expand the message window beneath the flow and click the debug icon click the debug node button to view the output in the debug message window