Extron electronic SCP 104, SCP 226 Using SIS Commands, SCP-initiated Messages, Error Responses

SCP-initiated Messages

At power-up, the following SCP-initiated message appears:

(c)Copyright 20nn, Extron Electronics, SCP 104 [or 226], Vn.nn

NOTE: This message is displayed only at power-up.

When a local event such as a front panel selection takes place, the SCP 104/226 responds by sending a message to the host indicating what selection was entered (see “Switch responses” in the Command and Response Table for Special Function SIS Commands on page 38\⤀.

No response to these messages is required from the host.

Error Responses

When the SCP 104/226 receives a valid SIS command, it executes the command and sends a response to the host device. If the SCP is unable to execute the command because the command is invalid or contains invalid parameters, the SCP returns an error response to the host.

Error response codes and their descriptions are shown below. Each error response is followed by a carriage return.

E10 – Invalid command

E13 – Invalid command parameter

E23 – Bad checksum

E28 – Bad filename/File not found

Using SIS Commands

SIS commands can be used with the SCP 104/226 only when it is in standalone mode; that is, DIP switch #1 on the rear panel is in the On (up\⤀ position. The available commands enable you to test the front panel LEDs and buttons, and to query for certain information about the SCP.

NOTE: You cannot program SCP buttons or switches using

SIS commands. The SCP buttons reflect only what is

programmed for the MLC or the System 5 IP to which the SCP is connected.

32SCP 104 and SCP 226 • Remote Communication