# Causes of run-time errors for the numeric pop-ups

At run time the application logs error messages about the numeric pop-ups to diagnostics under the following circumstances. These are common causes, but because of the wide variety of possible applications, other conditions not mentioned here may also cause error messages.

## Value beyond the Value limit

Value too large for the Value connection

If the value is too large for the data type of the tag assigned to the Value connection, or if the value is outside the assigned tag's minimum and maximum values, when the operator presses the Enter button:

- Nothing is written to the Value connection.
- The pop-up remains open and continues to show the invalid value in red.
- If Enter key handshaking is set up, the Enter connection is not set to 1 and the handshake timers do not begin timing.
- The application logs an error.

For example, the value is too large for the tag’s data type if the data source is a PLC-5, the value is 2147483647, and the assigned tag is an integer tag using the address N7:0. Integer tags have a range of -32768 to 32767 only.

Value outside minimum and maximum range

The displayed value with the decimal point stripped is compared to the minimum and maximum range for Fixed Position using the Stripped Value option. The shown value with decimal point is compared to the minimum and maximum range for Implicit and for Fixed Position using the Displayed Value option. If the value is outside the minimum and maximum range (specified in the General tab for the numeric input enable button), when the operator presses the Enter button:

- Nothing is written to the Value connection.
- The pop-up remains open and continues to show the invalid value in red.
- If Enter key handshaking is set up, the Enter connection is not set to 1 and the handshake timers do not begin timing.
- The application logs an error.

## Enter key handshaking still in effect

If timing for Enter key handshaking from a previous pop-up entry is still in effect when the operator presses the Enter button:

- Nothing is written to the Value connection.
- The Enter connection remains set to 1 and the handshake timers continue timing.
- The application logs an error.

## Screen resolution too small

If the screen is too small to display the numeric pop-up, the application logs an error.

## Invalid Optional Expression

If the optional expression assigned to the object is invalid or not assigned, when the operator presses the Enter button:

- Nothing is written to the Value connection.
- The pop-up remains open and continues to show the invalid value in red.
- If Enter key handshaking is set up, the Enter connection is not set to 1 and the handshake timers do not begin timing.
- The application logs an error.

## Invalid initial value

If the initial value shown is based on the Value connection, and the initial value is invalid, the pop-up's scratchpad will show asterisks to indicate an error condition. The application will not log an error.

## See also

Use the numeric pop-up scratchpad

Use the numeric pop-up keypad

How the numeric pop-ups work at run time

How values are calculated

Causes of run-time errors for the numeric input enable button