Mscs Protocol - Orion OPM-4240 User Manual

OPM-4240 / OPM-4240R

6. MSCS Protocol

1. Introduction
This document contains the communication protocol between PDP and its control devices such as computer for better
use of the product. However, it does not include detailed technical matters. It rather focuses on the brief functional
explanation and communication protocol.
Controller Tx/Rx Line ID:1
ID:N+1
ID:(M-2)N+1
ID:(M-1)N
※ Connection formation can be vary based on the configuration or user setting.
<Communication connection diagram>
1.1. Communication Setting
Transmission & Reception type: Asynchronous Serial Communication
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Connection type: Daisy Chain
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Baudrate : 115200
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Data Bits : 8
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Parity : None
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Stop Bits : 1
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Flow Control : None
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2. Protocol Format
2.1. Send To PDP
STX Command Length Data
1 byte 1 byte 1 byte Variable
ID Other Data
1 byte N byte
This is how to send commands to PDP. Only the set of the designated ID is working according to the "Command." But, if the "ID" value is "0", all
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MPDP sets are working according to command as "Broad Cast".
STX(0x02): The initial code. It means the beginning of Protocol. (Fixed value)
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Command: Code for actual operation. (Variable)
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Length: the length of "Data" area. (Variable: 0~255)
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Data: the areas for "ID" and the other Data (Variable)
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ID: Set identification (0~255) (Variable)
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ETX(0x03): The end of the code. (Fixed value)
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ID:2 ID:N-1 ID:N
ID:N+N
ID:(M-2)N+N
ID:(M-1)N+2 ID:(M-1)N+N-1 ID:MXN
ETX
1 byte
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2.2. Receive From PDP
STX CMD Length Data
1 byte 1 byte 1 byte Variable
ID Other Data
1 byte N byte
Response by a certain command from the designated set among MPDP sets. The difference from "Send to PDP" is "Check sum".
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STX(0x02): The initial code. It means the beginning of Protocol. (Fixed value)
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Command: Code for actual operation. (Variable)
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Length: the length of "Data" area. (Variable: 0~255)
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Data: the areas for "ID" and the other Data (Variable)
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ID: Set identification (0~255) (Variable)
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Check Sum: Add all the values in "Data" area. Then perform "NOT" operation. (Variables)
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ETX(0x03): The end of the code. (Fixed value))
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3. Command
3.1. Power On
Power On command for MPDP
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Command Code: 0x40
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One way communication (Send to PDP)
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Data: ID(1 byte)
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E.g.) Power On Condition for MPDP ID No.1 set
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STX CMD Length ID
Value 0x02 0x40 0x01 0x01
1.Clicktherightbuttonofthemousetoselectdesiredset
2.SelectONEPDPandclick"On"



3.2. Power Off
Power off command for MPDP
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PDP will be turn into "Stand-by" mode after execute this command
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Command Code: 0x41
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One way communication (Send to PDP)
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Data: ID(1 byte)
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E.g.) Power Off Condition for MPDP ID No.1 set
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STX CMD Length ID
Value 0x02 0x41 0x01 0x01
1.Clicktherightbuttonofthemousetoselectdesiredset
2.SelectONEPDPandclick"Off"
Infinitely Expandable
Check Sum ETX
1 byte 1 byte
ID : 1 ID : 2 ID : 3
➊
ID : 4 ID : 5 ID : 6
ID : 7 ID : 8 ID : 9
ETX
0x03
➋
ID : 1 ID : 2 ID : 3
➊
ID : 4 ID : 5 ID : 6
ETX
0x03
ID : 7 ID : 8 ID : 9
➋
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