Response Format - Omron V600-CA8A-V Series Operation Manual

Command/Response Format
Write Data Lines
Command Execute Line
(CEXE)
Host Strobe Line (HS)

3-4-2 Response Format

Normal Termination
Read and Auto Read Commands
1, 2, 3...
Write and Auto Write Commands
1, 2, 3...
26
Example:
In this example, the DC's address 0318 is specified for command processing.
Address Lines:
7 6
OFF OFF
Eight lines (WD0 to WD7) are used to specify the data to be written in the case of
write processing.
WD7WD6 WD5 WD4 WD3 WD2 WD1 WD0
Command execution is given using the CEXE line. The data given on the com-
mand lines, on the address lines, and on the write data lines are effective.
The HS line informs the ID Controller of the communications timing by outputting
the clock signal, which turns ON and OFF at a cycle of 10 ms.
Eight lines (RD0 to RD7) are used to output response data. The meaning of the
signal varies with the kind of command executed and the result of operation ter-
mination.
7
1. The read data from the DC is output as the ID Controller response to the PC.
2. The ERR line is not OFF, which informs the PC that local communications
have been performed normally.
3. Line RS1 or RS2 of the ID Controller is ON, which informs the PC that the DC
read operation has been completed.
1. The normal termination code (00) is output as the response from lines RD0
to RD7 of the ID Controller.
0
1 2 3 4 5 6 7 8
5 4 3
2
OFF ON ON OFF
1
1
X16 X16
6 5 4 3 2
1
X16 X16
0
Normal termination code
Section 3-4
1
0
OFF OFF
8
0
1 0
0