second CCW of the read interruption sequence processes the EOT response
from the remote station as shown in the for.at below • Read I • IOpera- ICommand I I ITP Op I I Ition I Code IAddress IFlagslCode ICountl I I IWrite xt 01' I Table CC, I 06 2 I I RVI I SILII I I I IRead X'02' IResponse I SILl I 11 2 I IRe- I I I I , Isponsel I I 1 I ,
DATA FORMATS - BISYNCHRONOUS LINES AND REBaTE 3270s CP, in conjunction with remote 3270 support, uses the following formats for its text messages. For a detailed explanation of the abbreviations
used, see the 327Q Information Display CoaponentDescription.
Display commands use this message format for the placement or erasure of
data anywhere on the display screen.. The display co •• ands that implement this function are: WRITE (X'F1'), ERASE/WRITE (X'F7') and COpy (X'F7') • rl----------------------------------------------------------//----------- ISTXIESCICMDIWCCIBSAI Buffer larders ISBAI Buffer ETI IAddress I & Text I I Address
1 1 1 1 1 2 variable 1 2 1
The COpy command is limited to compatible printers located on the same control unit. Action starts by pressing a PF key designated for the COpy function. CP responds by sending a message to the control unit
that contains both the designated printer and the display station that
requested the action and directs the control unit to print the
designated display buffer to the printer specified.
The format of the COpy messages follows:
CP Introduction 1-103

, ISTXIESCI CKD I I I X 'F l' I ICCCI Froa IETXI IAddressl I • I ISTXIESCI CKD IWCCISBAIBuff IETXI , 'IX'F1'1 IAdr I I I I I I I (4040 I I • I The following is representative of typical 1nput-to-processor message formats. The format of a multiline read operation follows. • 1/--------------------1/ , IIndexlSTXICU IDevlAIDICursorlSBAIBuffl Text ISBllBuffl Text IETII I Byte I I Adr I Adr I I lddr I I Addr I I Ilddr I I I , 1/ 1/ Another form of input message is the error status message. Error status
is processed by the DKKRGF module. The characters, following the SOB signify that this message contains sense and status data. The format of this message follows • • IIndexlSOHI IByte I I I I I I R ISTXICU IDevlSense/lETI I IADRIAdrlStatusl I I I IBytes I The test request aessage, upon receipt from display terminals, is
ignored by CP. The input inhibit mode that the display terminal enters
upon pressing the test request key can be reset only if the terminal user presses the RESET key. The characters, following SOH indicate
the test request function. The format of this message follows.
Index
Byte SOH I STI Text ETI
1-104 IBK VK/310 System Logic and Problem Deteraination--Volume 1