ASTRO VG-871 - Type 5

Chapter 1 CONCERNING THE TERMINAL COMMANDS
13
1.10.5 Type 5
This is the sequence for receiving the VG data. The data must be received for the
desired number of times.
Fig. 1-10-5-1
Flow
Command
Send/receive direction
1
STX
Command*1
(Parameters)
ETX
Send
2a (Successful)
ACK
Receive
2b (Failed)
STX
ESTS
Error code
ETX
Receive
3
STX
TRDT
Data
ETB
Receive
4
ACK
Send
3 and 4 are repeated for the desired number of times.
n-1
STX
TRDT
Data
ETX
Receive
n
ACK
Receive
Fig. 1-10-5-2
Note1) It is assumed here that the following three codes are entered in the command portion.
VG4CMD
Command 1
Command 2
Note 2) The flow is terminated at 2b if communication failed.