Communication Rules - Sony VPL-FE100U Protocol Manual

8.

COMMUNICATION RULES

. Set the INDEX NUMBER of PROJECTOR and SWITCHER from "01."
. When sending a command from CONTROLLER, the return data (CMD1 = 10 hex) from PROJECTOR
and SWITCHER should be received first before sending the next command. Even if the next command
is sent before receiving the return data, since PROJECTOR will not be able to receive that command, it
does not return a response to CONTROLLER. Consequently, no error code is also sent.
The following lists the approximate waiting times for PROJECTOR to return the return data after
CONTROLLER sends the command.
. When a communication error occurs, PROJECTOR or SWITCHER ignores the data received until
now, and set into the reception standby state.
. For undefined commands or commends determined as invalid by PROJECTOR, PROJECTOR will
send the "NAK" return data to CONTROLLER (When the Index is specified only.). Be very careful
that the switcher will not send the "NAK".
. Take note that when data is written when the input signal of PROJECTOR or SWITCHER is unstable,
that data (value) will not be incorporated.
. When INDEX specified SIRCS direct command (CMD1 = 17 hex) is transmitted, leave an interval of
45 mSec until the next transmission. (Do not return the return data (ACK, NAK) when the SIRCS
direct command is received.)
10
VPL-FE100U/FE100E/FE100M