# Define Processing System Resources Panel

You can create or modify a Substation ES interface in the Define Processing System Resources panel.

## Panel Layout

    SXTP04 -------------- Define Processing System Resources ----- Row 1 to 1 of 1
    Command ===>                                                   Scroll ==> CSR
        Type: C(ics) I(ms) A(dmin)
     (ADD=Create new Processing System, CAN=Cancel updates)
    Sel Type   Identifier       Interface Id.
    -    -     ---------------- ----------------
         I     New-BES1         IIIMS
    ******************************* Bottom of data ********************************

## Field Description

The following table lists the fields in the Define Processing System Resources panel:

Field | Description
--- | ---
Command | You can enter `ADD` to create a new Substation ES interface, and enter `CAN` to cancel all modifications just done to the existing Substation ES interface. Valid commands: ADD and CAN.
Sel | You can select an existing Substation ES interface to modify. Valid selections: S(elect), D(elete), and R(epro).
Type | The type of interface. Valid types: A(dmin), C(ICS), and I(MS)
Identifier | Required. The user defined description of the Substation ES interface. The value must be unique. Default value: New-BES1.
Interface Id | Required. The name, up to eight characters, assigned to the Substation ES interface for communication with the transaction processing systems, such as CICS and IMS, which run in the z/OS environment. This identification must match the interface ID that is configured through the INTF-ID parameter in the interface system initialization parameter (SIP) member. The SIP member is located in the USERHLQ.INTF library.

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