Built-in DOP functions
ASK_VALUE function
Role
Implementation
This function is used to display a status message contained in the CCX17 operator dialog console memory on a CCX 17 console screen.
This message includes a variable, which can be modified by the operator.
The entry is made in synchronized mode. Therefore, it is possible to make one single operator entry at each message display.
Implementation of the ASK_VALUE function is developed in the Description of parameters (See Description of the parameters common to the different DOP
functions, p. 276) section.
Note: It is strongly advisable to assign parameters for the timeout for an infinite period (see
Parameters field: Report, p. 283 so as not to invalidate the
ASK_VALUE function before the operator entry is made.
Specific parameter:
Status message number
This parameter defines the message identifier contained in the CCX 17 memory.
Its value is between 1 and 300.
Example The illustration below shows an example of ASK_VALUE function entry.
ASK_VALUE
Parameters
Console address:
ADR# 0.0.4
Data to be sent: %KW20
Value of data to be sent
Status message number: 3
6 Data to receive:
Report:
%MW10
%MW20
2
4
OK Cancel
TLX DS 37 PL7 xxE
309
