Roland VR-400UHD 4K Streaming AV Mixer User Guide
- June 12, 2024
- Roland
Table of Contents
Roland VR-400UHD 4K Streaming AV Mixer
Product Information
The VR-400UHD is a device that supports remote-interface communication through
LAN and RS-232 interfaces. It allows you to operate the VR-400UHD remotely
from a controlling device.
LAN Interface
The LAN interface uses the LAN port on the VR-400UHD. You can operate the VR-
400UHD remotely over a LAN using Telnet and the TCP/IP protocol. The LAN port
number is 8023.
RS-232 Interface
The RS-232 interface uses the RS-232 connector on the VR-400UHD. The
communication method is synchronous (asynchronous), full-duplex. The
communication speed is either 9,600 or 38,400 bps.
The data length is 8 bits, with 1 stop bit and no parity. The code set used is
ASCII.
List of Commands
Commands for both LAN and RS-232 interfaces are common. Here is a list of
available commands:
- Select the program scene (PGM1 in DUAL mode)
- Select the preset scene (PGM2 in DUAL mode)
- Press the [CUT] button
- Press the [AUTO] button
- Press the [OUTPUT FADE] button
- Set the [DSK] button on/off
- Set the [LOGO] button on/off
- Switch between MIX/WIPE
- Change the WIPE pattern
- Set transition time
- Set the [AUTO TRANSITION] button on/off
- Adjust the volume
- Turn the solo function on/off
- Turn the mute function on/off
- Adjust the AUX send level
- Adjust the pan
- Adjust the reverb send level
- Turn USB send on/off
- Set AUX PRE/POST
- Adjust the volume
Product Usage Instructions
To operate the VR-400UHD remotely, follow these instructions:
Using LAN Interface
- Connect your controlling device to the LAN port of the VR-400UHD.
- Configure your controlling device to use Telnet and the TCP/IP protocol.
- Refer to the Reference Manual (PDF) for network connection methods.
- Send commands in the following format:
command [category] [ID] [sub-ID] [value], where [category], [ID], [sub-ID], and [value] are specific parameters for each command. - Use the ASCII code 0aH (line feed) as a control code to indicate the end of each command.
Using RS-232 Interface
-
1. Connect your controlling device to the VR-400UHD using an RS-232 crossover cable. -
Make sure the pin assignments match the following layout:
VR-400UHD Control device N.C.: 1 RXD: 2 RXD: 2 TXD: 3 TXD: 3 DTR: 4 DTR: 4 GND: 5 GND: 5 DSR: 6 DSR: 6 RTS: 7 RTS: 7 CTS: 8 CTS: 8 N.C.: 9 N.C.: 9
Send commands in the same format as for the LAN interface
Note: When sending a sequence of commands, make sure to wait for an ack
response before sending the next command. Also, ensure that the network and
password settings are configured beforehand.
The VR-400UHD supports two types of remote-interface communication: LAN and RS-232. Using the LAN port or RS-232 connector to send specific commands to the VR-400UHD from a controlling device lets you operate the VR-400UHD remotely.
LAN Interface
This uses the LAN port on the VR-400UHD. You use Telnet to operate the VR- 400UHD remotely over a LAN (TCP/IP protocol)
Communication standards
| Port | LAN port |
|---|---|
| TCP port number | 8023 |
For methods of connecting to a network, refer to the “Reference Manual” (PDF).
RS-232 Interface
RS-232 connector pin layout
Pin assignments
| Pin No. | Signal |
|---|---|
| 1 | N.C. |
| 2 | RXD |
| 3 | TXD |
| 4 | DTR |
| 5 | GND |
| 6 | DSR |
| 7 | RTS |
| 8 | CTS |
| 9 | N.C. |
Communication standards
| Communication method | Synchronous (asynchronous), full-duplex |
|---|---|
| Communication speed | 9,600/38,400 bps |
| Parity | none |
| Data length | 8 bits |
| Stop bit | 1 bit |
| Code set | ASCII |
Cable wiring diagram
Use an RS-232 crossover cable to connect the VR-400UHD and the controller (an
RS-232-compatible computer or other device).
The connections between 4 and 6 and between 7 and 8 are inside the VR-400UHD.
Command Format
Commands are common to the LAN and the RS-232 interface.
Transmitted commands (control device Ó this unit)
Transmit specific commands from the control device to this unit
| Command | Format |
|---|
ver
| Obtains the model name and version information.
ver lf
set
| Sets a parameter.
get
| Obtains the current parameter value.
When this unit correctly receives a command, it returns set,[category],[ID ],[sub-ID],[value][lf].
“lf” is the ASCII code “0aH”, and is a control code that indicates the end of the command. H indicates a hexadecimal value. ack response (this unit Ó a control device) When this unit correctly receives a command, it returns back. The ack response commands are described in “List of Commands” (p. 3).
Error response (this unit Ó control device)
When this unit could not correctly receive a command, it returns an error.
| err | , | Transmitted command | lf |
|---|
List of Commands
When sending a sequence of commands to the unit from a controller, after each
one, be sure to verify that an “ack” response is returned before sending the
next command. The network and password settings must be configured beforehand.
When connecting, enter the password you already set.
| Item | Sent command | Response command | Parameter |
|---|---|---|---|
| Select the program scene (PGM1 in DUAL mode) | set,97,46,0,[a][lf] | ||
| ack,97,46,0,[a][lf] | a: 0–63 (1-1–8-8) | ||
| Select the preset scene (PGM2 in DUAL mode) | set,97,46,1,[a][lf] | ||
| ack,97,46,1,[a][lf] | a: 0–63 (1-1–8-8) | ||
| Press the [CUT] button | set,98,43,0,1[lf] | ack,98,43,0,1[lf] | |
| Press the [AUTO] button | set,98,42,0,1[lf] | ack,98,42,0,1[lf] | |
| Press the [OUTPUT FADE] button | set,97,25,[a],[b][lf] | ||
| ack,97,25,[a],[b][lf] | a: 0 (PGM(DUAL Mode: PGM1)), 1(DUAL Mode: PGM2) |
b: 0 (OFF), 1(ON)
Set the [DSK] button on/off| set,97,79,0,[a][lf]| ack,97,79,0,[a][lf]|
a: 0 (OFF), 1(ON)
Set the [LOGO] button on/off| set,97,63,0,[a][lf]| ack,97,63,0,[a][lf]|
a: 0 (OFF), 1(ON)
Switch between MIX/WIPE| set,97,48,0,[a][lf]| ack,97,48,0,[a][lf]| a: 0
(MIX), 1(WIPE)
Change the WIPE pattern| set,97,49,0,[a][lf]| ack,97,49,0,[a][lf]| a:
0–3 (1–4)
Set transition time| set,97,18,0,[a][lf]| ack,97,18,0,[a][lf]| a: 0–20
(0.0–2.0 sec)
Set the [AUTO TRANSITION] button on/off| set,97,19,0,[a][lf]|
ack,97,19,0,[a][lf]| a: 0 (OFF), 1(ON)
MIC1–MIC6 channel
| Adjust the volume| set,97,139,[a],[b][lf]| ack,97,139,[a],[b][lf]| a: 0–5 (MIC1–MIC6 Channel)
b: 0–127 (Level)
Turn the solo function on/off| set,97,138,[a],[b][lf]| ack,97,138,[a],[b][lf]| a: 0–5 (MIC1–MIC6 Channel)
b: 0 (OFF), 1(ON)
Turn the mute function on/off| set,97,137,[a],[b][lf]| ack,97,137,[a],[b][lf]| a: 0–5 (MIC1–MIC6 Channel)
b: 0 (OFF), 1(ON)
Adjust the AUX send level| set,97,144,[a],[b][lf]| ack,97,144,[a],[b][lf]| a: 0–5 (MIC1–MIC6 Channel)
b: 0–127 (Level)
Adjust the pan| set,97,140,[a],[b][lf]| ack,97,140,[a],[b][lf]| a: 0–5 (MIC1–MIC6 Channel)
b: -50–0–50 (L-C-R)
Adjust the reverb send level| set,97,141,[a],[b][lf]| ack,97,141,[a],[b][lf]| a: 0–5 (MIC1–MIC6 Channel)
b: 0–127 (Level)
Turn USB send on/off| set,97,143,[a],[b][lf]| ack,97,143,[a],[b][lf]| a: 0–5 (MIC1–MIC6 Channel)
b: 0 (OFF), 1(ON)
Set AUX PRE/POST| set,97,145,[a],[b][lf]| ack,97,145,[a],[b][lf]| a: 0–5 (MIC1–MIC6 Channel)
b: 0 (PRE), 1(POST)
LINE1, LINE2, HDMI,
USB channel
| Adjust the volume| set,97,173,[a],[b][lf]| ack,97,173,[a],[b][lf]| a: 0–3 (LINE1, LINE2, HDMI, USB)
b: 0–127 (Level)
Turn the solo function on/off| set,97,172,[a],[b][lf]| ack,97,172,[a],[b][lf]| a: 0–3 (LINE1, LINE2, HDMI, USB)
b: 0 (OFF), 1(ON)
Turn the mute function on/off| set,97,171,[a],[b][lf]| ack,97,171,[a],[b][lf]| a: 0–3 (LINE1, LINE2, HDMI, USB)
b: 0 (OFF), 1(ON)
Adjust the AUX send level| set,97,178,[a],[b][lf]| ack,97,178,[a],[b][lf]| a: 0–3 (LINE1, LINE2, HDMI, USB)
b: 0–127 (Level)
Adjust the pan| set,97,174,[a],[b][lf]| ack,97,174,[a],[b][lf]| a: 0–3 (LINE1, LINE2, HDMI, USB)
b: -50–0–50 (L-C-R)
Adjust the reverb send level| set,97,175,[a],[b][lf]| ack,97,175,[a],[b][lf]| a: 0–3 (LINE1, LINE2, HDMI, USB)
b: 0–127 (Level)
Turn USB send on/off| set,97,177,[a],[b][lf]| ack,97,177,[a],[b][lf]| a: 0–3 (LINE1, LINE2, HDMI, USB)
b: 0 (OFF), 1(ON)
Set AUX PRE/POST| set,97,179,[a],[b][lf]| ack,97,179,[a],[b][lf]| a: 0–3 (LINE1, LINE2, HDMI, USB)
b: 0 (PRE), 1(POST)
Adjust the output volume| set,97,182,[a],[b][lf]| ack,97,182,[a],[b][lf]| a: 0–3 (MAIN, AUX, USB, HDMI)
b: 0–127 (Level)
Turn the output solo function on/off| set,97,181,[a],[b][lf]| ack,97,181,[a],[b][lf]| a: 0–3 (MAIN, AUX, USB, HDMI)
b: 0 (OFF), 1(ON)
Turn the output mute function on/off| set,97,180,[a],[b][lf]| ack,97,180,[a],[b][lf]| a: 0–3 (MAIN, AUX, USB, HDMI)
b: 0 (OFF), 1(ON)
Auto mixing function on/off| set,97,265,0,[a][lf]| ack,97,265,0,[a][lf]|
a: 0 (OFF), 1(ON)
Audio follow video function on/off|
set,97,217,0,[a][lf]| ack,97,217,0,[a][lf]| a: 0 (OFF), 1(VFA), 2(AFV)
Adjust reverb| set,97,216,0,[a][lf]| ack,97,216,0,[a][lf]| a: 0–127
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