Extron electronic System 7SC manual Command Hex. command Response Additional description

Serial Communication, cont’d

Command/response table for advanced instructions (for the Windows-based control program)

Data downloads/uploads are initiated by sending a series of hex commands to the host RS-232 port of the System 7 switcher. The Windows-based control program uses these commands mainly to load and save driver data and system configuration settings. See page 3-6 for information on projector control memory.

Command	Hex. command		Response	Additional description
	(host to switcher)		(switcher to host)
Send/receive data to/from page 0 memory
Send	80	A0 [16k bytes of data]	Dnl0	The host downloads 16k bytes
				of binary data to page 0 of the
				System 7’s memory.
Recieve	80	A1		The System 7 sends 16k bytes of
				binary data to the host.
Send/receive data to/from page 1 memory
Send	80	A2 [16k bytes of data]	Dnl1	The host downloads 16k bytes
				of binary data to page 1 of the
				System 7’s memory.
Receive	80	A3		The System 7 sends 16k bytes of
				binary data to the host.
Send/receive a flag (parameter) block
Send	80	A4 [32 bytes of data]	Prm0	The host sends 32 bytes of binary
				parameter data to the System 7.
Receive	80	A5		The System 7 sends 32 bytes of
				binary parameter data to the host.

Send/receive a segment (256 bytes) of data (a segment relating to a single button)

Send	80	A6	??
Receive	80	A7
			??

[256 bytes of data]	Seg0	The host sends 256 bytes of
		binary data to the System 7.

The System 7 sends 256 bytes of binary data to the host.

Send/receive 512 bytes of channel (button) data

Send	80	A8	[512 bytes of data]	EEP0	The host sends 512 bytes of
					binary data to the System 7.
Receive	80	A9			The System 7 sends 512 bytes of
					binary data to the host.

??indicates the block number in hex notation where (0 to 127 decimal).

The responses shown are ASCII.

??

can be 0 to 7F (hex)

4-10 System 7SC • Serial Communication