HP 3000 Manuals HP 3000 Manuals
Capabilities
RJE provides the IBM 2780/3780 capabilities enumerated above plus the
following:
* When emulating an IBM 2780, it does short-record truncation without
the user having to supply EM control characters in the data.
* When emulating an IBM 2780, it can do blank field compression.
* When emulating either an IBM 2780 or 3780, it provides input and
output access to a wide variety of peripheral devices including disk
and magnetic tape.
* When emulating an IBM 2780, it can block more than 7 records.
* Autodial.
* Auto-answer.
* Auto-disconnect.
* Native language support.
* X.21 (RJE/V only).
* Programmatic control.
* User procedures for error recovery and control of processing of
received and transmitted data.
Operating Modes
RJE has the following operating modes:
* Command mode
When RJE is first started, it is in command mode. In this mode, all
data read from the command file is interpreted as RJE commands.
During interactive operations, the execution of some commands may be
interrupted by entering a [CTRL]-Y, after which RJE returns to
command mode.
For more information on operating in command mode, see Chapter 3,
"RJE User Commands," in this manual.
* Input mode
In the input mode, all data read from the input file is transmitted
to the remote processor. When RJE encounters an RJIN command, it
switches to the input mode.
* Output mode
When in the output mode, RJE awaits output from the host. When RJE
encounters an RJOUT, RJLIST, or RJPUNCH command, it switches to the
output mode.
* Debug mode
In debug mode, which is initiated by an RJDEBUG command, user-written
procedures called by RJE may be monitored and tested.
Autodial
Autodial is the ability to instruct an autodial modem to dial a number.
For autodial system requirements, see the RJE/XL Node Manager's Guide or
RJE/V Node Manager's Guide.
Interactive and Batch Operations
RJE has the capability to operate in interactive mode and batch mode.
* Interactive mode
Interactive mode indicates that commands are being entered one by one
at the terminal. For information on operating in interactive mode,
see Chapter 4 in this manual, "Using RJE in Batch and Interactive
Mode."
* Batch mode
In batch mode, streamed jobs submit RJE commands and data to MPE for
processing. For information on operating in batch mode, see Chapter
4 in this manual, "Using RJE in Batch and Interactive Mode."
Programmatic Control
The function of programmatic control is to allow a user to run the RJE
subsystem so that application programs (or users) running concurrently
with the subsystem may submit command files to it. RJE processes these
command files in the same way as other command files.
System Supervisor (OP) capability is necessary for a user to be able to
initiate programmatic control for the RJE subsystem.
The environment for programmatic control is within the MPE operating
system and the RJE subsystem.
For information on operating in programmatic mode, see Chapter 5, "Using
RJE in Programmatic Mode."
Command Files
The initial command file is specified when RJE is invoked. Other command
files may be specified by an #RJCMDFILE command or may be submitted to
RJE during programmatic control. For more information on command files,
see Appendix B, "Using RJE Files."
User-Written Procedures
User-written procedures are created by the user to be utilized in RJE
processing. User-written procedures enable you to use RJE in nonstandard
situations; for example, merging data from several input files prior to
transmission without making an additional pass over the data. They also
allow you to recover from subsystem errors.
For information on user-written procedures, see Appendix E, "User-Written
Procedures."
RJE as Remote Dedicated Print Station
RJE/V can communicate with a host system at 56000 bits per second (56Kb)
and RJE/XL can communicate at 64000 bits per second (64Kb). With an
HP2680A laser printer connected to an HP 3000 similar to that in an
HP2685 Model 40 print station you can have a very cost-effective remote
print station for an IBM plug compatible host system that operates in a
bisynchronous (BSC) network.
For equipment required to use RJE in this mode, refer to the RJE/XL Node
Manager's Guide or RJE/V Node Manager's Guide.
When operating on a high line speed you should consult with host system
operations.