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Prizm Keypad based Series Overview
Overview | Specifications | Operations | Applications | PLCs Supported | Compare EV2 & EV3 Models
 

 Supported tasks
    Go to Screen    Go to Next Screen
    Go to Previous Screen    Write Value to a Tag
    Add a constant to tag    Subtract a Constant from Tag
    Add Tag B to Tag A    Subtract Tag B from Tag A
    Turn Bit On    Turn Bit Off
    Toggle Bit    Copy Tag B to Tag A
    Swap Tag A and Tag B    Print Data
    Set RTC    Copy Tag to STR 
    Copy Tag to LED    Delay
    Wait    Copy Recipe Block to PLC Block
    Copy PLC Block to Recipe Block    Execute PLC Logic Block.

Prizm screens can be triggered by the PLC or by the tasks supported in Prizm32 Software. Various text or graphic objects can be placed on the screen to allow the operator to monitor the machine. Keys are used to navigate through screens or to edit data. A tag database defines the PLC bits / registers used for monitoring or controlling. Bits and registers internal to the unit itself can also be used.

Tasks:
The unit can be configured to execute various tasks at power up and in every scan or when a particular screen is active. Different set of tasks can also be defined when a key is pressed, while it is held down and when a key is released. The list of possible tasks contains powerful commands to navigate through screens; monitor, control and manipulate tags as well.

Alarms:
Upto 256 alarms (16 for text models) can be defined. As the alarms are triggered they are placed in an “alarm container” and can be displayed on the screen. Keys can be defined to acknowledge the alarms and to navigate through alarm list. An acknowledged inactive alarm is taken out of the “alarm container”.

Screens:
Screen Tasks can be defined to be executed before showing a screen, while showing a screen and after hiding a screen. Objects such as plain text objects, Data display (coil status, register value, register dependent text), Data entry objects, Alarm objects etc. can be defined on the screen.

Configuration Software:
Prizm units are configured using the Prizm32 software. With the Prizm32 software, the user can configure Prizm settings (for example keypad queue size, float data format, printer port, number of
languages supported etc.), Nodes (PLC’s to be connected to the unit and the communication settings for the port), Tag database (Prizm local memory tags as well as the PLC bits and registers to be used by the application), Alarms (the registers used to trigger alarms, text for alarms and other alarm settings), Keys (the tasks to be performed when a key is pressed or released) and the Tasks to be performed when the unit powers up as well as global tasks.

Screens are configured as per the desired user interface. Here, the screen objects (text and graphic objects), wizards, reassigning tasks to keys for that particular screen, tasks to be performed when the screen is triggered, while the screen is displayed and when it is replaced with another screen are defined.

After configuring, the application can be saved for future use. This application is then downloaded to the Prizm unit.