IBM 2790 Manual page 52

• Request Format
System/360—
d i — not used
d2, d3, d = -digit work number (EBCDIC)
4 3
CE Panel-
a. Set the Panel Select switch to SET TIME DAY
position.
b. Enter X T ' and the three-hex-digit work day numbers.
No data checking is performed.
c. Press the Panel Request pushbutton.
• Response Format
System/360— No response generated.
CE Panel— Standard response (X'E2F0' to Display Reg).
X 'E 3-M onitor Work Day
• Function-Monitors the work day number previously
entered. This number is included in the message header
of all data transferred to System/360 or to disk.
• Request Format
System/360 and CE Panel— Standard format with no
additional data required.
• Response Format
System/360— Standard format, with the work day
number available in the message header.
CE Panel— The display register contains the three
work-day-number digits. Positions 0-3 are X'0', and
positions 4-15 contain the hundreds, tens, and units
digits.
X'E4'—Monitor Time
• Function— Monitors the Real-Time Clock that time-
stamps all user data at the transaction level.
• Request Format
System/360 and CE Panel— Standard format with no
additional data required.
• Response Format
System/360— Standard format, with the time available
in the transaction header.
CE Panel-The display register contains the four time
digits. The high byte displays (in hex) the tens and
52
units hour digits, and the low byte displays the tens
and units minute digits.
X 'E S '-S et Time
• Function— Sets the Real-Time Clock that time-stamps all
user data at the transaction level.
Note: An X'C3', 'C4', or 'C7' request must be
made at least once after an ICPL to enable time to be
sent to the 2790 system
• Request Format
CE Panel:
a. Set the Panel Selector switch to SET TIME DAY
position.
b. Enter the time digits into the Data/Address switches.
Positions 0-7 contain in hex the tens and units hour
digits, and positions 8-15 the tens and units minute
digits.
c. Press the Panel Request pushbutton.
• Response Format
CE Panel:
a. Positive— The time digits are contained in the corres­
ponding display register positions.
b. Negative— Not used.
c. Invalid— Catalog number X'0041' is set into the dis­
play register for invalid digits. Invalid digit combi­
nations are any that do not form a valid 24-hour
clock time.
X 'E6'— Reset Read Deferred Data Mode
• Function— Causes the 2715 to stop requesting deferred
data from disk for transmitting to System/360. The
2715 will continue to send any deferred data already
queued in core for transmission.
• Request Format
System/360— Standard format.
• Response Format
No response is generated to this control request. Refer
to description of "X'C5'-S e t Read Deferred Data Mode"
for discussion of automatically resetting 'read deferred
data mode'.