Omron SYSMAC NX-CIF105 User Manual

7 - 17
7 Serial Communications
NX-series Communications Interface Units User’s Manual (W540)
7-4 Examples of Communications between CPU Unit or Communications Master and CIF Unit
7
7-4-2 Example of Receiving Data
2 Inputting
string from
A to T
The communications master receives
the inp
ut notification data given on the
right.

• The CIF Unit inputs the following input noti-
fication data to pass ABCDEFGHIJKLM-
NOPQRST to the CPU Unit or
co
mmun
ications master.
• The above input notification data is held
u
n
til the CPU Unit or communications mas-
ter sends output notification data in which
the
Inpu
t SID Response is 01 hex.
3 Input
response
for A to T
The communications master outputs
t
he following output notification data to
tell the CIF Unit that ABCDEFGHI-
JKLMNOPQRST was received nor-
mally.

• The CIF Unit receives th
e output notification
data given on the left.
• The CIF Unit knows that ABCDEFGHI-
JKLMNOPQRST was normally received by
the
CPU Unit or communications master
because the Input SID Response in the out-
put notification data is 01 hex.
4 • Input-
ting
string
UVWXY
Z
• Notifica-
tion of
e
nd
de
tec-
tion
• The communications master
receives
the input notification data
given on the right.
• The communications master knows
th
at the CIF Unit detected the end of
the receive data because the End
Detected in the Port Status in the
input notification data is TRUE.

• The CIF Unit inputs the following input noti-
fication data to pass UVWXYZ to the CPU
Unit or communications
master.
•
At the same time, the CIF Unit tells the CPU
U
n
it or communications master that the end
of the receive data was detected.
Step Process
CPU Unit or communications master
processing
Communi-
cations
direction
*1
CIF Unit processing
20 bytes
Incremented.
There is receive
data that is not
the final receive
data.
A to T
0010 hex
01 hex
02 hex
1000 hex
0000 hex
0014 hex
41 hex,
42 hex,
:
53 hex,
54 hex
Input Data 01 to
05
Port Status
Input SID
Output SID
Response
Input Data Type
Input Sub Info
Input Data Length
02 hex
01 hex
0000 hex
0000 hex
0000 hex
00 hex,
00 hex,
00 hex,
00 hex
Set the Input
SID.
Output SID
Input SID
Response
Output Data
Type
Output Sub Info
Output Data
Length
Output Data 01
Incremented.
End was detected.
This is the final
receive data.
6 bytes
"UVWXYZ"
8010 hex
02 hex
02 hex
2000 hex
0000 hex
0006 hex
55 hex,
56 hex,
57 hex,
58 hex,
59 hex,
5A hex,
00 hex
:
Input Data 01 to
05
Port Status
Input SID
Output SID
Response
Input Data Type
Input Sub Info
Input Data Length

Omron SYSMAC NX-CIF105 Specifications

General

Brand	Omron
Model	SYSMAC NX-CIF105
Category	Recording Equipment
Language	English