IBM 3745 Series Service Functions page 26

Field H
Field I
Field
J
Field K
CCU status:
DOWN
HARDCHK
HARDSTOP
IPL-REQ
PWR-DOWN
READY
RESET
RUN
STOP-AC
STOP-BT
STOP-PGM
STOP-X70
MSA (CCU Information)
A hardware error occurred on the CCU, and service personnel
intervention is necessary.
The control program stopped on a hardcheck error. An auto-
matic re-IPL is attempted. In certain cases however, (for
example if the hardcheck occurs during a general IPL) there is
no re-IPL.
You selected the CCU check reset function to reset the CCU
check condition. To restart, select the CCU Start function on
the 3745 function menu or press F6 = CCU START or F6 = S if
displayed on the screen.
A CCU IPL was requested and is in progress.
The related CCU power supply is down.
The CCU is operational and can be used immediately (IML
completed).
The control program stopped since you initiated the RESET
CCU function; to restart the CCU, perform an IPL.
Instructions are being executed or data is being transferred.
The control program stopped because the address compare
function that you initiated with CCU STOP (CCU ACTION = S) is
successful.
The control program stopped because the branch trace func-
tion that you initiated with CCU STOP has become deactivated.
The control program stopped because you initiated the CCU
STOP or SET I-STEP function.
The control program stopped on an output X'70' instruction
executed by the control program.
Shows whether the 3745 will stop on an lac check.
BYP-IOC-CHK The system will not stop on an lac check. (default or after a
RESET lac CHECK STOP).
STOP-IOC-CHK You initiated the SET lac CHECK STOP function to force the
system stop on an lac check.
CCU check mode:
BYP-CCU-CHK You initiated the SET BYPASS CCU CHECK function so the
system will not stop on a CCU check.
STOP-CCU-CHK The system will stop on a CCU check (default or after the
RESET BYPASS CCU CHECK function).
Information on the CCU address compare (SAC) function:
AC
AC HIT
(highlighted). The address compare function is active. If you
selected MOSS INTERRUPT=Y and/or CCU STOP=Y when
defining the address compare, the following is displayed:
(highlighted). A single- or double-address compare is suc-
cessful.
Chapter 1. How to Use the MOSS Function Screens
1-13