Page of GC20-1806-9 As Updated April 1, 1981 by TNL GN25-0834 LOADBUF
Privilege D Use the LOIDBUF command to load the Universal Character Set (UCS) buffer
with a specified print chain/train image for the IBft 1403, 3203, or 3211 Print.9r Ot:" t.hp Forms Control Buffer (FCB) with a specified image fer the IBM 3203 or 3211 Printer. The device must be drained before the LOADBUF command is issued. This command should be used by the class D operator
to load the UCS buffer of a printer under the following conditions: • Any time the print chain/train is to be changed • If the buffer has been causing an excessive amount of parity errors • When the printer or control unit is powered up since the last buffer
load • If the printer was previously attached to a user
The FCB buffer should be loaded: • Anytime the FCB image is to be changed • If the printer was previously attached to a user
The LOADBUF command automatically sets the Block Data Check latch for
the ues buffer load. If VER was specified after the co.mand has been
executed, the image of the UCS load is printed on the specified printer.
The printed output must correspond to the description of the specified
buffer load in the publications control Unit, Order No.
GA24-3312, or IBM 3211 3216 Interchangeable @g 3811 uni1 Description ang Operator's Guide, Order No.
GA24-3543. The format of the LOIDBUF command is: I LOADBUF I {
raddr
raddr UCS name [Fold]
FCB name [Index [Ver] }
[nn ]] L- ________________________________________________________________________ raddr uc S FCB
is the address of the printer whose buffer is to be loaded.
is a required reserved word. When loading both a print chain image (UeS) and a forms
control buffer (FCB), it may be necessary to use two LOADBUF commands for the specified printer.
86 VM/370 Operator's Guide

name
FOLD Page of GC20-1806-9 As Updated April 1, 1981 by TNL GN25-0834 is a one-to four-character name of the UCS or FCB image to be
loaded. The supplied names are as follows: • UCS--1403 or 3203 AN HN PCAN PCHN ON ONC RN IN TN PN SN normal AN arrangement
normal HN arrangement
preferred character set, AN
preferred character set, HN PL/I - 60 graphics PL/I - 60 graphics FORTRAN, COBOL commercial
high speed alphameric
text printing - 120 graphics PL/I printing - 60 graphics
text printing -84 graphics • UCS--3211 Al1 standard Commercial Hl1 Standard Scientific Gll ASCII pl1 PL/I Tl1 Text printing • FCB--3211 or 3203 Only one name is provided
information on how to add more frogrammer's Guide.
for an FCB image. For
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loads the UCS buffer with the folding operation code to permit
printing of uppercase for lowercase bit configurations. FOLD is
optional and valid only for UCS. The FOLD option causes the control unit to ignore bit
positions 0 and 1 of the EBCDIC code when compar1ng the
character codes from the UCS buffer and the print line buffer.
Thus, only uppercase characters are printed from either
uppercase or lowercase data codes. The FOLD option must be used
with discretion since multiple characters may be printed for the
same EBCDIC bit configuration depending on the image used. VER prints the contents of the buffer on the specified printer for
verification of the buffer loading function. Note: If you are using a 3211 with a p11 train, do not use the VER option of the LOADBUF command because a permanent I/O error will result.
Section 3. CP Commands 87