Status Read Command; Format; Transfer Example; Operation Condition - Sanyo PLV-WF20 - 6000 Lumens Manual

PLV-WF20 Expand Serial Command Functional Specifications
9． Status Read Command

9.1 Format

1) PC issues a command in the format below:
"CR_Command" [CR]
Command: String
2) When the projector receives the applicable command, it returns the required information
as a data string.
"000_" %1 [CR]
%1: required Information (a data string. Refer to [Basic Status Read Command Table])
3) When the received data cannot be decoded, the projector returns "?" [CR]

9.2 Transfer Example

Getting total dots of the projector by Expand Serial Commands
PC → PJ: "CR_TDOTS" [CR]
PC ← PJ: "000_1344" [CR]

9.3 Operation condition

Basically it should be always operated.
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