PLC-HP7000L Basic Serial Command Functional Specifications
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6. Functional Execution Command
6.1 Format
・ PC issues a command in the following format:
“C” Command [CR]
Command: two characters (See Functional Execution Command Table)
・ Projector decodes the received data and returns the result when getting ready to receive the
next command.
[ACK] [CR]：(0x06, 0x0D) When received Functional Execution Commands.
・ 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 “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.
Command
PC → Projector “C” “0” “7” CR
Projector → PC ACK CR
Processing
(A few ms - 5 s）
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