Router Initiated Commands; Edid Status Changed; Port Status Changed (Psc); Error Responses - Lightware MX-FR9 User Manual

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7. Programmer's Reference
7.14. Router Initiated Commands
7.14.1. EDID Status Changed
This is sent after any command that changes the EDID table (EDID copy, EDID switch), or if a new EDID
source, e.g. a new display device, is connected to the router.
Command and Response
ȩ various
Ȩ (E_S_C)CrLf
Example
ȩ A new monitor is connected to the output
Ȩ (E_S_C)CrLf
When a new monitor is connected to an output port, its EDID is read. The message from the router shows
that an EDID has changed.

INFO: The router stores the last attached display device's EDID connected to the output. After disconnecting
this device, its EDID is still present at the router's memory, therefore no status change message is issued
by the router if a display device having the same EDID is connected to that output. (The same display
device is connected again, or another display device (same brand) from the same manufacturer).

INFO: To keep your application in sync with the router, it is recommended to issue a watch validity ( {wvd},
{wvu}, {wve} ) command after receiving an (E_S_C) response, and read all location indicating '2' or '3' in
the table, as the change of these EDIDs triggered the (E_S_C) message.
7.14.2. Port Status Changed (PSC)
This message is sent when any value changes in the response for the {PS} command. The message means
that an input or output port's state has changed, e.g. a source or display device is connected or disconnected.
Command and Response
ȩ none
Ȩ (PSC)CrLf
Example
ȩ An input port looses signal
Ȩ (PSC)CrLf
An input port (that had signal present before) detects no signal. The router sends a message to indicate port
status change.

INFO: The (PSC) message can be omitted by a third party controller, or it can be used to trigger a {PS}
command. In the latter case, the controller can be up to date with the port status without continuous queries.
MX-FR Series Modular Matrix Frames – User's Manual
7.14.3. Error Responses
Applied CPU2 firmware: v3.5.7b8 | LDC software: v2.5.17b2
Response Error type
Given input number exceeds the maximum
(ERR01)CrLf Invalid input number
number of inputs or equals zero.
Given output number exceeds the installed
(ERR02)CrLf Invalid output number
number of outputs or equals zero.
Given value exceeds the maximum allowed value
(ERR03)CrLf Invalid value
can be sent.
Given preset number exceeds the maximum
(ERR04)CrLf Invalid preset number
allowed preset number.
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