![Print](INVALID-TITLE:<span style="margin-right:10px;"></span><span class="d-none d-md-inline"><span id="t-print" style="position: relative;bottom:2px; left:1%; z-index:9999; padding:0; margin:0;">[[File:Icon_Print.svg|Print|1px|link=http://localhost/stage/tango/index.php?title=IFP50-3_RS-232_Protocols&printable=yes]]</span></span>
<span class="d-none d-md-inline"><span id="t-print" style="position: relative;bottom:2px; left:1%; z-index:9999; padding:0; margin:0;">[[File:Icon_Print.svg|Print|30px|link=http://localhost/stage/tango/index.php?title=IFP50-3_RS-232_Protocols&printable=yes]]</span></span>
[[Category:Template]]
[[Category:Archive]]){kind=small}
IFP50-3 RS-232 Protocols: Difference between revisions
No edit summary |
|||
| Line 167: | Line 167: | ||
# If the message is received correctly it will send “+” (02Bh) followed by “CR” (00Dh) | # If the message is received correctly it will send “+” (02Bh) followed by “CR” (00Dh) | ||
# If the message is received incorrectly it will send “-” (02Dh) followed by “CR” (00Dh) | # If the message is received incorrectly it will send “-” (02Dh) followed by “CR” (00Dh) | ||
==Protocol== | |||
===Set-Function Listing=== | |||
The PC can control the Display for specific actions. The Set-Function command allows you to control the Display behavior at a remote site through the RS-232 port. The Set-Function packet format consists of 9 bytes. | |||
[[Category:IFP50-3]] | [[Category:IFP50-3]] | ||
[[Category:ViewBoard]] | [[Category:ViewBoard]] | ||
Revision as of 02:39, 3 July 2020
RS-232 Protocol
This document describes the hardware interface spec and software protocols of RS-232 interface communication between ViewSonic LFD and PC or other control units with RS-232 protocol.
The protocol contains three command sections:
- Set-Function
- Get-Function
- Remote control pass-through mode
- NOTE: Below, “PC” represents all the control units that can send or receive the RS-232 protocol command.
Description
RS-232 Hardware Specification
ViewSonic LFD communication port on the rear side:
- Connector type: DSUB 9-Pin Male (or 3.5 mm barrel connector)
- Use of crossover (null modem) cable for connection
- Pin Assignment:
| Pin # | Signal | Remark | |
|---|---|---|---|
| Female DSUB 9-Pin | 1 | NC | |
 |
2 | RXD | Input to Display |
| 3 | TXD | Output to Display | |
| 4 | NC | ||
| 5 | GND | ||
| Male DSUB 9-Pin | 6 | NC | |
 |
7 | NC | |
| 8 | NC | ||
| 9 | NC | Provide +5V/2A power for external specific dongle *3.0 | |
| frame | GND |
| Item | Signal | Remark | |
|---|---|---|---|
| 3.5 mm barrel connector (alternative for limited space) |
Tip | TXD | Output to Display |
 |
Ring | RXD | Input to Display |
| Sleeve | GND |
LAN Hardware Specification
ViewSonic LFD communication port on the rear side:
- Connector type: 8P8C RJ45
- Pin assignment:
| Pin # | Signal | Remark | |
|---|---|---|---|
 |
1 | TX+ | Output from Display |
| 2 | TX- | Output from Display | |
| 3 | RX+ | Input to Display | |
| 4 | BI_D3+ | For 1G case | |
| 5 | BI_D3- | For 1G case | |
| 6 | RX- | Input to Display | |
| 7 | BI_D4+ | For 1G case | |
| 8 | BI_D4- | For 1G case | |
| frame | GND |
RS-232 Communication Setting
- Baud Rate Select: 9600bps (fixed)
- Data bits: 8 bits (fixed)
- Parity: None (fixed)
- Stop Bits: 1(fixed)
LAN Communication Setting
- Type: Ethernet
- Protocol: TCP/IP
- Port: 5000 (fixed)
- Cross subnet: No
- Logon Credentials: No
Command Message Reference
PC sends to LFD command packet followed by “CR”. Every time PC sends control command to Display, the Display shall respond as follows:
- If the message is received correctly it will send “+” (02Bh) followed by “CR” (00Dh)
- If the message is received incorrectly it will send “-” (02Dh) followed by “CR” (00Dh)
Protocol
Set-Function Listing
The PC can control the Display for specific actions. The Set-Function command allows you to control the Display behavior at a remote site through the RS-232 port. The Set-Function packet format consists of 9 bytes.