Chapter 3 PLC System Configuration & Settings Device Name : Users can select a device type in the Device Name drop-down list. Device Number : Users can type a device address in the Device Number field. State & Value : Users can set s condition of triggering the sending of an email here. Periodic Timer An email is sent periodically. How often an email is sent depends on the interval typed in the Trigger Min Cycle box in the Trigger Setting section. Where any trigger mode is set, the user message and error log related parameters will show up. 3-99