3-2. Community
A request is executed when community coincides with the community set in display equipment. Commu- nity consists of four (upper- or
01
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6
23 (Bit position)
7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
Community (32)
Community packet
3-3. Command
The format of a request packet and response packet is described below.
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Request/Response(8)
Command packet
3-4. Request
The format when sending a request from a host to display equipment is described below.
Community
This is the same alphanumeric character as the community set in display equipment that sends a request.
Request
This is a request for display equipment.
Item No.
This is the item number to be treated for request.
Data Length
This is the length of data incident to a request. The maximum length is 128 bytes. The length of data is “0” when no data exists.
Data
This is data incident to a request.
3-5. Response
The format when display equipment returns a response to the request from a host is described below.
Community
This contains the same alphanumeric character as a request. For a short header and short community, this is embedded with 00h.
Response
This contains the result of a request.
Item No.
This is the item number to be treated for response.
Data Length
This is the length of data incident to a response. The maximum length is 128 bytes. The length of data is “0” when no data exists.
Data
This is data incident to a response.
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