This function is used in Python Scripting.


Returns a list of the most recent agent events. This function should only be called from the Controller. 

This feature was changed in Ignition version 8.1.11:
If called from an Agent on 8.1.11+, this function will return an exception. 

Client Permission Restrictions

This scripting function has no Client Permission restrictions.


system.eam.queryAgentHistory(groupIds, agentIds, startDate, endDate, limit)

  • Parameters

List groupIds - A list of groups to restrict the results to. If not specified, all groups will be included.

List agentIds - A list of agent names to restrict the results to. If not specified, all agents will be allowed.

Date startDate - The starting time for history events. If null, defaults to 8 hours previous to now.

Date endDate - The ending time for the query range. If null, defaults to "now".

int limit - The limit of results to return. Defaults to 100. A value of 0 means "no limit".

  • Returns  

Dataset - A dataset with columns id, agent_name, agent_role, event_time, event_category, event_type, event_source, event_level, event_level_int, and message, where each row is a new agent event.

  • Scope

Gateway, Vision Client, Perspective Session

Code Snippet - Querying for Agent Task History
# This script loops through each row of the dataset and grab out every value from that row and assign it to a matching variable. Those variables can then be used in some way.
for row in range(results.rowCount):
	eventId=results.getValueAt(row, "id")
	agentName=results.getValueAt(row, "agent_name")
	agentRole=results.getValueAt(row, "agent_role")
	eventTime=results.getValueAt(row, "event_time")
	eventCategory=results.getValueAt(row, "event_category")
	eventType=results.getValueAt(row, "event_type")
	eventSource=results.getValueAt(row, "event_source")
	eventLevel=results.getValueAt(row, "event_level")
	eventLevelInt=results.getValueAt(row, "event_level_int")
	message=results.getValueAt(row, "message")
	#Can include some code here to use the variables in some way for each row.
Code Snippet - Querying for Agent Task History
# This script grabs the agent event history from agents called Agent1, Agent2, Agent3, and will then place the data into a table on the same window.
results=system.eam.queryAgentHistory(agentIds=["Agent1", "Agent2", "Agent3"])
event.source.parent.getComponent('Table').data = results

system eam queryAgentHistory, eam.queryAgentHistory