OPTICON
Software Guide
MDL-1000/2000
33
4-2-11. PARAM_REQ
・
Feature: Request current values of parameters
Length Operation
Code
Message
Source
Status Request
Data
Checksum
05 C7
04
Field Format
Size
(Byte)
Function
Length
Length
1
The length of a packet excluding checksum
Operation
Code
C7 1
Packet
ID
Message
Source
4:Host
1
From The Host System to This Scan Engine
Status Bit0:
retransmit
Bit1: Unused
1
Request
Data
<pn><pn><pn>.. Varia
ble
Selects Parameter number.
0xFE selects all parameters
Checksum
2
Two’s complement sum of message contents
(from Length to Data Field).