Specifying an alternate PCB

An alternate PCB statement describes an alternate message destination where a message can be sent when the destination of a message differs from the place where it was entered. Use the alternate PCB statement section of the PSB summary page to create or modify an alternate PCB statement.

Before you begin

Open the PSB summary page on the PSB that contains the alternate PCB.

Procedure

  1. From the alternate PCB statement section of the PSB summary page, you can create a new alternate PCB statement, and remove and modify one or more existing statements.
    • To create a PCB statement, click Add. A new row is added to the table and the statement properties you can modify are displayed. A sequential PCB number uniquely identifies the new row.
    • To remove a PCB statement, click a row in the table to select it, then click Remove. To remove multiple statements, select multiple rows by clicking Shift+Click, then click Remove.
    • To edit a PCB statement, click a row in the table to select it, then click Edit and modify the properties. You can edit only one statement at a time.
    You can specify values for these statement properties.
    Property Required or optional Description
    PCB name Required if LIST=NO 1-to-8 alphanumeric character PCB name or PCB label that must be unique within the PSB. The name cannot start with a numeric character.
    Start of changeAlias (EXTERNALNAME)End of change Start of changeOptionalEnd of change Start of changeA 1- to 128-character uppercase alphanumeric string that represents the alias of the PCB. Java™ application programs use the external name to refer to the PCB.End of change
    Output message destination Required if MODIFY=NO 1-to-8 alphanumeric character name logical terminal name or a transaction-code name.
    Use the alternate PCB (ALTRESP) Optional Specifies whether this alternate PCB can be used instead of the I/O PCB to respond to terminals in response mode, conversational mode, or exclusive mode. The default is No.
    Message to be sent (EXPRESS) Optional Specifies whether messages from this alternate PCB are sent (Yes) or are backed out (No) if the application program abends. The default is No.
    Same physical terminal (SAMETRM) Optional Specifies whether IMS™ verifies that the logical terminal named in the response alternate PCB is assigned to the same physical terminal as the logical terminal that originated the input message. The default is No.
    Include named PCB in the PCB list (LIST) Optional Specifies whether to include this PCB in the PCB list that is passed to the application program at entry. The default is Yes.
    Modifiable alternate PCB (MODIFY) Optional Specifies whether the destination name for this alternate PCB can be modified dynamically. The default is No.
  2. Click File > Save.




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