The rules for coding JES2 control statements are the same as the rules for JCL statements, with the following additions:

• Columns 1 and 2 always contain the characters /*. Columns 73-80 are ignored by z/OS® and are typically used for sequence numbers.
• Do not code comments on any JES2 statements. Where comments are needed, code a JCL comment statement.
• If you code the same parameter on the same statement more than once, JES2 uses the value in the last parameter.

When coding a JES2 control statement more than once, be aware of the following JES2 actions:

• If the same parameter appears on more than one statement, JES2 uses the value coded on the last statement.
• If the statements contain different parameters, JES2 uses all parameters combined.