Ab X Standard Command Protocol; Figure 6-2: Abx Standard - Command Packet Structure - EMS COBALT C0405 Series Operator's Manual

C H A P T E R 6 : C O M M A N D P R O T O C O L S
6.3 AB S C P
X TANDARD OMMAND ROTOCOL
The ABx Standard Command Protocol is a binary, double-byte, "word" oriented
protocol where data is transmitted in 2-byte increments: a Most Significant Byte
(MSB) or "High Byte" and a Least Significant Byte (LSB) or "Low Byte".
For ABx Standard commands, the first data word sent to the controller contains the
command header and command ID, followed by parameters such as start address,
read/write length and timeout value.
Note that at no time can the complete command packet string (including terminator)
exceed 50 words or 100 bytes.

Figure 6-2: ABx Standard - Command Packet Structure

C 0 4 0 5 - X X X - 0 1 O P E R A T O R ' S M A N U A L – R E V . 0 3 P A G E 5 9 O F 7 5