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CHARON-VAX / CHARON-PDP console ports can be configured to connect to an external terminal via the host system COM port or can be connected via TCP/IP.

rts

 

Value
Parameter
Type
rts[<line>]
TypeText string
Value

  • "On" - assert the RTS (Request To Send) signal

  • "Off" - clear the RTS signal (default)

  • "DTR" - assert the RTS signal as soon as the DTR signal is asserted

dsr

Parameterdsr[<line>]
TypeText string
Value

  • "On" - always reports DSR signal assertion

  • "Off" - always reports DSR signal deassertion

  • "DSR" - use the DSR signal of the physical serial line (if configured)

  • "CD", "DCD", "RLSD" - use the CD (carrier detect) signal of the physical serial line (if configured)

Info

This parameter is applicable only for line "2" of QUART.

communication

Parametercommunication [<line>]
TypeText string
Value

  • "ASCII" - for connection to terminals  (default)

  • "BINARY" - for serial lines carrying binary (packet) protocols, which are used mainly for communicating with PLCs

line

Parameterline[<line>]
Type

Identifier

ValueThis parameter is used to connect a particular serial line interface to the controller. See below for details.
Info

Note that the "line" parameter in the table above is applicable only in the case of QUART.

 

All the values in this the table above are case insensitive.

Example

:

set QUART rts[2]="DTR"
set QUART dsr[2]="On"
set QUART communication[2]="binary"

    

Warning

Line 2 of the QUART is the only one which can be used for connecting modems. Therefore, the "DSR" parameter for that line (i.e. "dsr[2]") is internally set to the appropriate value ("CD") but can be changed from the configuration file. Values for the "rts" and "dsr" parameters for the lines other than 2 are not visible for any applications running on CHARON-VAX / CHARON-PDP.

 

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The multiplexers offer the following configuration parameters, specified with the "set" command:

...

address

Parameteraddress
Type

Numeric

Value

...

...

Numeric

Specifies CSR address. The address must be a valid QBUS 22-bit wide address in I/O space.

Default values are 017760440 for the DHV11-family controllers and 017760100 for the DZV11/DZQ11 family controllers, which are the factory settings for asynchronous serial line multiplexers.

Warning

 This parameter is not applicable to DHW42-xx serial line controllers

vector

Parametervector
TypeNumeric
Value

Specifies the interrupt vector.

The default value is 0300, which is the factory setting for asynchronous serial line multiplexers.

...

Warning

 This parameter is not applicable to DHW42-xx serial line controllers

line

Parameter

line[N]

N=0…3(7,15)

TypeIdentifier
ValueSpecifies the name of the serial line interface object in the configuration to which the N-th line of the multiplexer is connected. See below for details.

communication

Parameter

communication[N]

N=0…4(7,15)

TypeText String
Value

  • "ASCII" - for connection to terminals  (default)

  • "BINARY" - for serial lines carrying binary (packet) protocols, which are used mainly for communicating with PLCs

rts

Parameter

rts[N]

N=0…3(7,15)

TypeText String
Value

Controls the RTS signal of the Nth line of the multiplexer. 

  • "On" - assert the RTS (Request To Send) signal
  • "Off" - clear the RTS signal (default)
  • "DTR" - assert the RTS signal as soon as DTR signal is asserted

When left blank (initial state), the level of the RTS signal is as requested by the VAX/PDP11 software.

dsr

Parameter

dsr[N]

N=0…3(7,15)

TypeText String
Value
  • "On" - always reports the DSR signal assertion
  • "Off" - always reports the DSR signal deassertion
  • "DSR" - use the DSR signal of the physical serial line (if configured)
  • "CD", "DCD", "RLSD" - use the CD (carrier detect) signal of the physical serial line (if configured)
Info

This parameter is applicable only for the DZV11 and DZQ11 serial lines controllers


tx_q_max_depth

Parameter

tx_q_max_depth[N]

N=0…3(7,15)

TypeNumeric
Value

Specifies the depth of the TX FIFO for the N-th line of the multiplexer. Possible values are 1…1000, initially set to 1, to properly represent the hardware limitation of certain multiplexers. Values greater than 1 improve transmission rate of the corresponding lines, but break correspondence to the original hardware.

Info

This parameter is applicable only for the DHV11 serial lines controller

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Use the "address" and "vector" parameters to load several instances of the Qbus multiplexers. Both "address" and "vector" parameter values must be unique for every instance of a QBUS multiplexer.

Read the VAX/PDP11 hardware documentation and the VM system management documentation to understand how to correctly assign the "address" and "vector" parameters.

Example of loading 2 instances of DHV11

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load DHV11/DHV11 TXA address=017760440 vector=0300
load DHV11/DHV11 TXB address=017760460 vector=0310

 

Example of loading DHW42CA

...

load DHW42CA/DHV11 TXA

.

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Types of serial line mapping

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TypeFunction
physical_serial_line

This type of mapping associates a COM port on a host system with an emulated VAX/PDP11 serial line controller virtual "line".

The COM port can be a physical hardware port or a logical COM port.

virtual_serial_lineThis type of mapping associates a network connection on the host system with an emulated VAX/PDP11 serial line controller virtual "line"

...

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physical_serial_line

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line

line
Parameterline
Type
Description
Text string
Value

A defined COM port on a host system in the form of "\\.\COMn"

Example:

set OPA0 line="\\.\COM1"

baud

Parameterbaud
TypeNumeric
Value

Forces the baud rate of the corresponding COM port to be a specified value.

The variety of supported values depends on the underlying physical communication resource (COM port). The most widely used values are: 300, 1200, 9600, 19200, 38400.

Example:

set OPA0 baud=38400

break_on

Parameterbreak_on
TypeText string
Value

Specifies what byte sequences received over the physical serial line will trigger a HALT command.

This parameter works only for the console line (for the one UART line and "line[3]" of QUART).

Specify the following values: "Crtl-P", "Break" or "none" ("none" disables triggering a HALT condition).

Example:

set OPA0 break_on="Crtl-P"

The default value is "Break" for line 3 of QUART and "none" for other lines.

stop_on

Parameterstop_on
TypeText string
Value

Specifies what byte sequences received over the physical serial line will trigger a STOP condition. The STOP condition causes CHARON-VAX / CHARON-PDP to exit.

Specify the one of the following values: “F6” or “none” ("none" disables triggering a STOP condition).

Example:

set OPA0 stop_on="F6"

The default value is "none".

Setting "F6" triggers the STOP condition upon receipt of the "<ESC>[17~" sequence. Terminals usually send these sequences by pressing the F6 button

log

Parameterlog
TypeText string
Value

A string specifying a file name to store the content of the console sessions or a directory where the log files for each individual session will be stored.

If an existing directory is specified, CHARON-VAX / CHARON-PDP automatically enables creation of individual log files, one for each session using the same scheme as used for the generation of the rotating log files. If the "log" parameter is omitted, CHARON-VAX / CHARON-PDP does not create a console log.

Examples:

set OPA0 log=”log"log.txt”txt"

.

set OPA0 log=
”
"C:\Charon\Logs
”
"

Example of mapping a console line to a host physical serial line:

load physical_serial_line/chserial OPA0
set OPA0 line="\\.\COM1"

...

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virtual_serial_line

host

Description
Parameter
Type
host
TypeText string
Value

A remote host’s IP address or hostname (and optionally a remote TCP/IP port number) for the virtual serial line connection. If omitted, the virtual serial line does not initiate a connection to the remote host and will listen for incoming connection requests.

Specify the value in the following form:

set OPA0 host="<host-name>[:<port-no>]"

If the "<port-no>" is not specified, the virtual serial line uses the TCP/IP port number specified by the "port" parameter (see below).

port

Parameterport
TypeNumeric
ValueThe TCP/IP port number for the virtual serial line. A virtual serial line always listens on this port for incoming connection requests.

application

Parameterapplication
TypeText string
Value

An application (a terminal emulator is assumed in most cases) to be started on initialization of this serial line emulation. The specified application startup string may contain all required parameters.

Example:

set OPA application = "putty.exe -load OPA0"

In this example the terminal emulator application: "putty" is started with the parameters "-load OPA0" telling it to load a specific saved session named "OPA0", (created separately) from the host registry.

The "application" parameter is often combined with a "port" parameter:

set TTA1 port = 10003 application = "putty.exe -load TTA1"

break_on

Parameterbreak_on
TypeText string
Value

Specifies what byte sequences received over a virtual serial line triggers a HALT command.

This parameter works only on the console line (for CHARON-VAX / CHARON-PDP it is the only line of UART and "line[3]" of QUART).

Specify one of the following values: "Crtl-P", "Break" or "none" to disable triggering a HALT condition. The commands are case insensitive.

Example:

set OPA0 break_on="Crtl-P"

The default value is "Break" for line 3 of QUART and "none" for other lines.

stop_on

Parameterstop_on
TypeText string
Value

Specifies what byte sequences received over the virtual serial line will trigger a STOP condition. The STOP condition causes CHARON-VAX / CHARON-PDP to exit.

Specify one of the following values: “F6” or “none” ("none" disables triggering a STOP condition). The commands are case insensitive.

Example:

set OPA0 stop_on="F6"

The default value is "none".

Setting "F6" triggers the STOP condition upon receipt of the "<ESC>[17~" sequence.

log

Parameterlog
TypeText string
Value

A string specifying the filename to store the content of the console sessions or a directory where log files for each individual session will be stored.

If an existing directory is specified, CHARON-VAX / CHARON-PDP automatically enables the creation of individual log files, one for each session using the same scheme as used for the generation of the rotating log files. If the "log" parameter is omitted, CHARON-VAX / CHARON-PDP does not create any console log.

Examples:

set OPA0 log=

”log

"log.

txt”

txt"

set OPA0 log=
”C
"C:\Charon\Logs
”
"

Example of mapping a console line to an onboard serial line

...

load virtual_serial_line/chserial OPA0
set OPA0 port=10003 stop_on="F6"

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  1. Use the combination of "port" and "host" parameters as follows to connect a 3rd party terminal emulator or similar program.

    load virtual_serial_line/chserial TTA0 host="192.168.1.1" port=10000

    In this example CHARON-VAX / CHARON-PDP connects to port 10000 of a host with TCP/IP address "192.168.1.1" and at the same time it accepts connections on local port 10000.

         

  2. It is possible to specify a port on a remote host (note that CHARON always acts as a server). The syntax is:

    load virtual_serial_line/chserial TTA0 host="192.168.1.1:20000" port=10000

    In this example CHARON-VAX / CHARON-PDP accepts connection on local port 10000 and connects to remote port 20000 of a host with TCP/IP address "192.168.1.1"

Note: the examples above are mainly used for inter-CHARON communications. They are used to connect CHARON-VAX / CHARON-PDP to an application that communicates to CHARON-VAX / CHARON-PDP as described below.

Example of two CHARON systems connected to each other

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On host "A":

load virtual_serial_line/chserial TXA0 port=5500 host="B"

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set <serial controller instance name> line[<line number>]=<serial line instance name>

Example:

set quart line[0]=TTA0

This command connects the first serial line ("line[0]") of a "QUART" serial line controller to a CHARON-VAX / CHARON-PDP connection instance named "TTA0". As explained earlier, TTA0 may be a virtual serial line connected to a port or a physical serial line connected to a host serial port or a virtual terminal. 

In the example below, the command connects the sixth serial line of a previously loaded controller (named "TXA") to "TTA1". "TTA1" could be defined, for example, as a physical serial line connected to COM/COM port:

set TXA line[5]=TTA1

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