Passing CICS data to IMS

Users want their front-end application programs to receive 3270 data streams from an attached terminal and to simply pass through this data stream (device control characters) to the back-end IMS.

The resulting output from IMS should then be a 3270 data stream that could be passed through the front-end application and out to the 3270.

Pass-through input to IMS

It is possible to send a 3270 data stream from a front-end application to IMS. However, IMS does not recognize the ISC session as a 3270 device and does not edit the device control characters from the data stream. Your IMS application program must provide this editing function.

Output from IMS

Similarly, IMS does not place 3270 device control characters in an output data stream that is destined for an ISC LTERM, because the ISC LTERM is not a 3270 device. Your application program must then construct a 3270 data stream to be sent to a front-end application that can, with minimal editing, send this data stream to an attached terminal.

This effort needs to be repeated for each device and each application program, and again after any change to a device format.