About the HE693OIU360
HE693OIU360 is an Operator Interface Unit that is manufactured by Horner APG for the HE693OIU series. This interface has 20 key numeric keypad with 12 programmable function keys. There is an RS-485 port for SNP connection and an RS-232 port for programming. The character height is .44”. There is a real-time calendar clock, IBM software, alarm capability, serial printer support, double integer read/write, and linear scaling. The mounting enclosure is a NEMA 4-12.
Screens on the operator interface unit may be accessed either by the screen chaining option, by the PLC (forced), or by the operator via the keypad (sometimes with a password). Complex messages, multiple related data screens, and process prompting are examples of the possible uses of the screen chaining. Examples of a production information screen are the production count screen and the parts per hour screen. These screens can be accessed from the keypad. Examples of a machine status screen include the temperatures screen and the pressures screen. These screens can be accessed from the keypad. An example of a machine setpoints screen is the timer setpoints screen. This screen can be accessed from the keypad. Examples of an operator prompting screen are the start motor screen and the start pump screen. These screens are forced by the PLC. An example of an alarm enunciation screen is the motor overload tripped screen. This screen is forced by the PLC. An example of a troubleshooting screen is the PID setpoints screen. This screen can be accessed from the keypad with a password.