6500-LU1-SCS-Local SNA 3174 Control Unit

LU1-SCS mode is utilized when neither PSF support nor IPDS is required to accomplish the print function desired. An existing local 3174 SNA-connected control unit is assumed. The steps required to install a local LU1-SCS printer for host definitions are as follows:
  • Define to VTAM by adding logmode entry to VTAM Logmode Table
  • Define to JES2 (Not required but recommended. See the following details.
  • Define to CICS or another Application Program such as VPS or JES328X products.
  • Select the options on the printer that are appropriate for the environment.
  1. VTAM Definition
    The following should be added to the Local Major Node VTAM definition. The printer will be attached as an LU1-IPDS capable printer.
    LOC3174V BUILD TYPE=LOCAL
    LOCPU74 PU CUADDR=nnn...
    LOC6500 LU
    LOCADDR=n,MODETAB=MYMODETB,DLOGMODE=6500SCSL,ISTATUS=ACTIVE
    The following entry should be placed in the VTAM MODE TABLE specified above or another of your choice.
    6500SCSL MODEENT LOGMODE=6500SCSL,
    
        FMPROF=X'03',TSPROF=X'03',PRIPROT=X'B1',
        ECPROT=X'90',COMPROT=X'3080',RUSIZES=X'8787',
        PSERVIC=X'01000000E100000000000000',
        PSNDPAC=X'02',SRCVPAC=X'02',SSNDPAC=X'00'
  2. JES2 Definition (SYS1.PARMLIB)
    RMT1 LUTYPE1,BUFSIZE=3840,LINE=1,NUMRD=0,NUMPR=1,NOCOMP,NOCMPCT,
       SETUPHDR,CONSOLE
    R1.PR1 CLASS=A,NOSEP,PRWIDTH=132,NOFCBLOD,WS=(W,R,Q,PMD,LIM,F,T/C,P),
       CKTPAGE=30
    DESTID NAME=LOC6500,DEST=R1
  3. Define to CICS or another application program

    An application program must provide the SCS commands to control the printer. CICS, VPS, and other applications support SCS as well as numerous application programs, both customer written and vendor supplied. Refer to the vendor documentation for defining an SCS printer to the program for its use. If there is no specific information on the 6500 you may use the IBM 4234 for reference.

  4. Printer Settings
    It is recommended that the following printer settings be changed from factory default settings:
    • Printer Control => Interface Selection => Coax
    • Coax Interface => Format Control => Enable