NEC MultiSync M491 49" Class HDR 4K UHD Commercial IPS LED Display - Manual (Page 65)

English−61
Proof of Play
This function allows sending of messages for the current status of the monitor by self-diagnosis.
For the Proof of Play function including self-diagnosis, please see the “External_Control.pdf”. See page 73 .
Check item Message
a INPUT DisplayPort, HDMI1, HDMI2, Media Player, COMPUTE MODULE, OPTION*
b Resolution e.g. (H)1920, (V)1080, (H)3840, (V)2160 or No signal or Invalid signal
c Audio signal Audio in or No Audio in or N/A
d Picture Image Normal Picture or No Picture
e AUDIO OUT Normal Audio or No Audio
f TIME (year)/(month)/(day)/(hour)/(minutes)/(second)
g EXPANSION DATA
00h: Normal Proof of Play event
01h: Proof of Play event is “last power on time”
10h: MEDIA PLAYER is stop
11h: MEDIA PLAYER is start
12h: MEDIA PLAYER is pause
13h: MEDIA PLAYER error occur
40h: Human detected (Human sensor Status)
41h: Human detect cleared (Human Sensor Status)
*: This function depends on which Option Board is installed in the monitor.
Example:
a HDMI1
b 3840 x 2160
c Audio in
d Normal Picture
e Normal Audio
f 2020/1/1/0h/0m/0s
g 10h: MEDIA PLAYER is stop