Pioneer PDP-614MX External Control Manual RS-232C - Manual (Page 4)

PDP-614MX External Control Manual
Communication Format
Command 1
Unit ID 1
Unit ID 2
Command 2
Data length
Data
Check sum
8bit 8bit 8bit 8bit 8bit 8bit 8bit 8bit
Command1
Command 1, along with command 2, is a number used to distinguish each command.
When making it operate using ID, bit1 and bit0 are set up as follows.
Bit1,Bit0 Unit ID distinction bit
11B :Usually, a form (with no ID)
10B :Usually, a form (with no ID)
01B :Set ID
00B :Video wall ID
In the case of ACK, when the lower order 4 bits is FH (as in 3FH and 7FH), this indicates that the commands and
data of the supported equipment have been received. When the lower order 4 bits is BH (as in 3BH and 7BH),
this indicates that unsupported commands and data have been received.
Unit ID1,2 (UA1,UA2)
Unit ID 1 and unit ID 2 are numbers used to identify the equipment that is to be connected.
60H is used for the plasma monitor and 80H is used for external control equipment such as a personal computer.
1) Unit ID 1: Indicates the equipment sending the signal. When supporting Set ID by the command 1, 4 bits of low
ranks of Set ID are set up.
2) Unit ID 2: Indicates the equipment receiving the signal. When supporting Set ID by the command 1, 4 bits of
higher ranks of Set ID are set up.
* Set ID : it is the apparatus number assigned to each plasma monitor.
Command 2
Command 2, along with command 1, is a number used to distinguish each command.
Check Sum (CKS), Error Processing, and ACK
4
1) The check sum described below and RS-232C odd parity are used together for a check of the received data. The check sum is