IBM 2790, Manual

Page: 47 / 88

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100061 Ip fe W F o 40 02 011
[8Ö181 8 2 8 3 8 4 8 5 8 6 8 7 8 8 8 9 8 A 8 B 8 C 8 D 8 E 8 F 9 0 9 ] 9 2 93 9 4 9 5 9 6 9 7 9 8 9 9 9 A 9 B 9 C 9 D 9 E 9 FA PAT A2A 3 A 4 A 5 A 6 A 7 A 8 A 9 A A A B A C A PA EAFBOBT
B 2 ^ 3 B 4 B 5 B 6 B 7 B 8 B 9 B A B B B C B P B
e
F
f
1
r !7 - rll6 Two Digit EBCPIC Address of Bypassed AS's
• Figure 28. Example 2740 Printout
requested configuration (rg is the last
character of the message for this
error; this error message would only
be generated as a response to a
System/360 control request and is
equivalent to the X‘01’ catalog num­
ber-invalid panel request).
X‘F1’—The 2790 adapter error detected
(catalog number X‘95’ was also set
on the 2715 panel).
X‘F2’—A segment had to be bypassed
(catalog number X‘96’ was also set
on the 2715 panel) because of an
error condition.
X‘F3’—The 2790 transmission system
would not sync (catalog number
X‘97’ was also set on the 2715 panel).
r
4
= Blank (X‘40’).
r
5
,
r6
= Summary of 2790 adapter and segment
status:
r
5
= X‘F
8
’—The 2790 adapter checked OK
and was left enabled.
r$ = X‘F0’—The 2790 adapter checked bad
and was left disabled,
r^ = X‘FN’, where the four bits of N ( b j ,
^
2
’ ^
3
’ an(* ^
4
) <tefine the status of
segments A, B, C, and D, respectively
(1
= restored).
r? = Blank (X‘40’).
rg, Tg = Status of segment A :
X‘F4F0’-Segment restored and OK.
X‘F0F1’—Segment was already bypassed,
or was requested to be bypassed.
X‘F0F2’-Segment had to be bypassed
because nothing was received from
segment.
X‘F0F3’—Segment has to be bypassed
because it could not successfully
pass 500 frames error free.
X‘FnFm’ (where X‘nm’ form an area
station address)-Segment had to be
bypassed because of a break, and the
address of the first area station down­
stream of the break is X‘nm’.
X‘F0F0’—Segment bypassed due to 2790
adapter failure.
r 10’ r l l = Status of segment B (see rg r^ above).
r 12’ r 13 = Status ° f segment C (see rg, r^ above).
r 14’ r 15 = Status ° f segment D (see rg, r^ above).
r 16 = New line.
r17
—r i
1
6 = (As required.) EBCDIC format of the
binary address of area stations by­
passed in executing this request
(two bytes per address).
r l 17 = If more than 50 area stations were by­
passed, a new line is inserted in
r l 17*
r l 18 r217 = (Same as r^y—rj ^ above.) As required.
Invalid Responses. Standard response used for checking
Bypass/Restore requests for valid segments.
rj = transaction control byte.
Ï
2
= requested segment (if used in request).
Panel Responses. Any valid panel request that affects the
status of the 2790 system (i.e., C3, C4, or C l) automat­
ically causes a response message to be sent to System/360.
a. Positive—Standard format.
b. Negative—The following catalog numbers correspond
to the System/360 response summary error byte (rg)
Summary Error B yte (r^) Cat. No.
F0 X‘0011’
FI X‘0095’
F2 X‘0096’
F3 X‘0097’
Transmission Control Unit 47