CHANGE → RPL: ACB field → ACB
NIB field → NIB:
NAME field = [symbolic name of LU whose
association is terminated|*]
GNAME field = generic name
NETID field = symbolic network identifier of LU
LISTEND field = YES
Note: ECB and EXIT are mutually exclusive.
If ECB is used, only one is allowed.
ECB field → external ECB
ECB field = internal ECB
EXIT field → RPL exit routine
BRANCH field = YES|NO
OPTCD field = (ENDAFFIN|ENDAFFNF,
SYN|ASY)
Registers 0 and 15 = return codes
RPL: RTNCD field = recovery action return code
FDB2 field = specific error return code
REQ field = request code (25)