Functional Execution Command; Format; When The Command Pipelining Is Needed; Transfer Example - Sanyo PLC-WM4500/L - 4500 Lumens Manual

PLC-WM4500/WM4500L Basic Serial Command Functional Specifications

6. Functional Execution Command

6.1 Format

0û
PC issues a command in the following format:
"C" Command [CR]
Command: two characters (See Functional Execution Command Table)
0û Projector decodes the received data and returns the result when getting ready to receive the
next command.
[ACK] [CR]ÿ (0x06, 0x0D) When received Functional Execution Commands.
0û When received data cannot be decoded, "?" [CR] is returned.

6.2 When the command pipelining is needed

In the case of the function requiring command pipelining, such as "Volume +/-" and "Zoom +/-",
operation should follow the same way as in remote control:
1) Sending-side system issues commands every 100 ms after receiving the return value.
2) When receiving an applicable command, the function is executed for 120 ms from the
moment.
3) When receiving the same command in sequence within 120 ms, the function is executed for
another 120 ms from the moment of the second command reception.
4) When any other command is not received after 120 ms, the execution of pipelining is stopped.
5) When Projector receives another command within 120 ms, the execution of pipelining is
stopped.

6.3 Transfer Example

Change Projector mode to Video with Basic Command.
PC ! ' Projector
Projector ! '
"C" "0"
PC
9/26
Command
"7" CR
ACK
Processing
(A few ms - 5 sÿ
CR