Panasonic Projector RS-232 Commands: Complete Control Guide
Panasonic PT series projectors use a well-documented RS-232 protocol with STX/ETX framing. Once you understand the packet structure, the same format works across the entire PT series — PT-RZ, PT-MZ, PT-VZ, and most other commercial Panasonic models.
Serial Port Settings
| Parameter | Value |
| Baud Rate | 9600 |
| Data Bits | 8 |
| Parity | None |
| Stop Bits | 1 |
| Flow Control | None |
| Cable Type | Straight-through |
Command Format
Panasonic uses STX/ETX framing:
0x02 + Command + 0x03
STX (0x02) starts the command, ETX (0x03) ends it. The command itself is plain ASCII text between these bytes.
Power Control
| Function | Command |
| Power On | `0x02 PON 0x03` |
| Power Off | `0x02 POF 0x03` |
| Query Power | `0x02 QPW 0x03` |
Power On response: 0x02 PON 0x03
Power query response when on: 0x02 001 0x03
Power query response when off: 0x02 000 0x03
Wait at least 30 seconds after Power On before sending other commands while the lamp warms up.
Input Switching
| Function | Command |
| HDMI 1 | `0x02 IIS:HD1 0x03` |
| HDMI 2 | `0x02 IIS:HD2 0x03` |
| DisplayPort | `0x02 IIS:DP1 0x03` |
| DVI | `0x02 IIS:DV1 0x03` |
| VGA (Computer 1) | `0x02 IIS:RG1 0x03` |
| Query Input | `0x02 QIN 0x03` |
Shutter Control
| Function | Command |
| Shutter Close (blank) | `0x02 OSH:1 0x03` |
| Shutter Open | `0x02 OSH:0 0x03` |
| Query Shutter | `0x02 QSH 0x03` |
Freeze
| Function | Command |
| Freeze On | `0x02 OFZ:1 0x03` |
| Freeze Off | `0x02 OFZ:0 0x03` |
Crestron SIMPL+ Example
```
STRING_PARAMETER SP_PowerOn[6] = "\x02PON\x03";
STRING_PARAMETER SP_PowerOff[6] = "\x02POF\x03";
STRING_PARAMETER SP_HDMI1[10] = "\x02IIS:HD1\x03";
STRING_PARAMETER SP_Query[6] = "\x02QPW\x03";
DIGITAL_INPUT PowerOn, PowerOff, Input_HDMI1;
STRING_OUTPUT TX$;
PUSH PowerOn { TX$ = SP_PowerOn; }
PUSH PowerOff { TX$ = SP_PowerOff; }
PUSH Input_HDMI1 { TX$ = SP_HDMI1; }
```
Common Mistakes
- ▸Forgetting STX/ETX — sending plain ASCII without the framing bytes results in no response
- ▸Not waiting after power on — send commands too soon and the projector ignores them while the lamp starts
- ▸Wrong input code — input codes vary slightly between PT series models. Always verify against your specific model's RS-232 documentation
- ▸RS-232 not enabled — some Panasonic models require enabling serial control in the projector's menu under Network/Serial settings
Related Guides
- ▸[Panasonic Projector RS-232 Commands]- Extron RS-232 Control Guide — SIS Protocol
- ▸Sony BRAVIA Professional RS-232 Commands
- ▸NEC Display RS-232 Commands
- ▸Kramer Switcher RS-232 Commands — Protocol 2000 & 3000
- ▸Crestron SIMPL+ Serial Control Guide
- ▸Biamp Tesira RS-232 and Telnet Control
- ▸QSC Q-SYS External Control Protocol
- ▸AMX NetLinx Serial Control Guide
- ▸RS-232 vs IP Control in Commercial AV
- ▸Crestron vs AMX vs Extron: Control System Comparison
Free RS-232 Tools
Baud rate reference, device settings table, terminator guide, and DB9 pinout — all free, no signup required.
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