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VPL-EW130
3-6.  Command Block Format
The block format of Simplifi ed Command for RS-232C as shown in the fi gure below. In this section, the 
block format for Simplifi ed Command is explained.
3-6-1. Simplifi ed Command
[Send]
The block format for sending request is shown below.
[Receive (without data)]
The block format for response which includes no return data is shown below. Response is always sent by 
PROJECTOR.
[Receive (with data)]
The block format for response which includes return data is shown below. Response is always sent by 
PROJECTOR.
*1: CHECK SUM:  B1 to B5 are calculated by OR. Refer to the example below.
 
<Example of Calculation>
 
0xA9 1010 1001 0xA9 1010 1001
 
0xA9 1010 1001 0x9A 1001 1010
 Answer 
1010 
1001 
Answer 
1011 
1011
 
  0xA9 
  0xBB
START CODE
B0
B1
B2
B4
B3
DATA
ITEM NUMBER
TYPE
CHECK SUM
*1
END CODE
B5
B6
B7
[A9h]
Put the item number. 
Refer to the item list in the sections 2-1-1 and 2-1-2.
SET: 00h (Set data)
GET: 01h (Get data)
SET: Put the Data value described in the item list in the sections 2-1-1 and 2-1-2.
GET: Unused. Set Dummy data [00h, 00h]
Check Sum
[9Ah]
START CODE
B0
B1
B2
B4
B3
DUMMY DATA
ACK / NAK
TYPE
CHECK SUM
*1
END CODE
B5
B6
B7
[A9h]
Refer to the reply definition table in the section 2-2.
[03h]
This data does not mean any senses.
Dummy Data [00h, 00h] is stored.
Check Sum
[9Ah]
START CODE
B0
B1
B2
B4
B3
DATA
ITEM NUMBER
TYPE
CHECK SUM
*1
END CODE
B5
B6
B7
Check Sum
[9Ah]
[A9h]
Refer to the item list in the sections 2-1-1 and 2-1-2.
[02h]
Express data to be Reply data
Data value described in the item list
in the sections 2-1-1 and 2-1-2.