Pioneer PDP-614MX External Control Manual RS-232C Manuel d'utilisateur télécharger pdf (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

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

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

1 2 3 4 5 6 7 8 9 ... 59 60

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Pioneer PDP-614MX External Control Manual RS-232C Manuel d'utilisateur Page 4