The original Diagnose 8C code only supported 3270 models 2, 3, and 4 because at the time that was all that was supported in the VM/370 code that we had.? Later, when model 5 support was added to the system, then Diagnose 8C was extended to support that device and 132 columns as well as 80 columns.? See patch HRC073DK, which among other things modified the Diagnose 8C code.
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Regards,
Bob
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