Checkpoints For Rs-232C Communication - Panasonic AJ-D250P Operating Instructions Manual

RS-232C

(5) Checkpoints for RS-232C communication

$ Send commands and data returned from the
VTR
1. If the LOCAL/MENU/REMOTE switch on the
front panel is not at the REMOTE position, it is
not possible to exercise proper control using the
RS-232C interface.
If any command except a Q (query) command is
sent while this switch is not at the REMOTE
position, error code ER001 is returned.
2. After one of the following commands is sent, not
all commands can be accepted until the
processing of the sent command is completed.
OPT, SCP, SCS, SMS, SPT, SRS, SUB, EFE
Commands which can be accepted
O Q (query) commands
O OSP command (STOP)
O OEJ command (EJECT)
Error code ER001 is returned when a command
other than one which can be accepted is sent.
$ Send command intervals
The AJ-D250 is a multi-microcomputer VTR. For
this reason, it takes time (approx. 150 ms) for
communication to be performed between the RS-
232C interface microcomputer and system control
microcomputer inside the VTR before any
processing can be performed by the system control
microcomputer inside the VTR.
Therefore, leave an interval of at least 150 ms
before sending a command from the computer.
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