IMS version 10 or later is necessary for interfacing with Substation ES.
Open Transaction Manager Access (OTMA) communicates with programs and other resources in IMS regions.
The following table lists the requirements that must be met for IMS regions:
Item
Description
IMS V10
APAR PK71135: IMS SYNCHRONOUS CALLOUT FUNCTION ACTIVATION
IMS V11
APAR PK81543: OTMA SYNCHRONOUS CALLOUT FUNCTION ACTIVATION
APAR/PTF PM09695/UK56450 enhances the synchronous call-out function in the following ways:
OTMA issues a new NAK message with the
X'2B' sense code when a late or invalid acknowledgment message is received.
OTMA cleans the unused tpipes for ICAL after 2 IMS checkpoints.
The output of the
/DISPLAY TMEMBER TPIPE SYNC command is changed to display the current number of ICAL messages that OTMA received for a particular tpipe. The
NO_RSP label is changed to
NO_COT.
Parameter Definitions
For Substation ES to connect and execute successfully in an IMS environment, you must correctly define the following parameters for the IMS procedure of the
DB/DC online control program:
GRNAME=XCF group name
OTMA=Y
OTMAMD=Y
OTMANM – (When specified in IMS, you must set the Substation ES
Applid keyword value accordingly.)
OTMASE=N
OTMASP=Y
Permissions
Substation ES must be able to run the
/STOP and
/START TMEM x TPIPE y commands. Check IMS and/or SAF security settings to ensure that Substation is authorized to run these commands.
