CL1=,CL2=,CL3=,CL4= parameter for procedures

The CL1=,CL2=,CL3=,CL4= parameter in procedure is a required positional parameter that specifies four 3-digit decimal numbers indicating which classes of messages are to be processed by this message region. The maximum value for a class is 999.

For example, if classes 1, 2, and 3 are to be processed by this region, the PARM field must be specified as PARM='MSG,001002003000'.

The sequence of specifying the classes determines relative class priority within the message region. In the example, all class 1 messages are selected for scheduling before any class 2 messages are considered. Class numbers cannot be greater than the maximum number of classes that are specified during system definition.