139
Detailed Description of Services
Section 6-4
6-4-8
Controller Attribute Read
This service reads the model number and communications buffer size.
■
Command
Service Request PDU
■
Response
Service Response PDU
1.
Model
From 1 to 10 in 1-2-4 Model Number Legend can be read.
Example:
2.
Buffer Size
The communications buffer size is expressed in 2-byte hexadecimal, and
read after being converted to 4-byte ASCII.
The buffer size is the smaller of the send and receive buffer sizes.
3.
Response Codes
MRC
2
0
5
SRC
2
3
0
Response code
Error name
Cause
1001
Command too long
The command is too long.
7011
Operation error (7011)
The command cannot be executed due
to a device error.
7015
Operation error (7015)
The command cannot be executed
while resetting (including during star-
tup).
0000
Normal completion
Processing was completed normally.
MRC
2
0
5
SRC
2
3
0
4
10
4
Response
code
Model
Buffer size
G -
H F
U A
N F
1
J
E
-
1
2
3
4
5
6
7
8
9
10 11 12 13 14
Input range
L
K
Summary of Contents for EJ1G
Page 3: ...iv ...
Page 17: ...xviii ...
Page 21: ...xxii ...
Page 53: ...32 Unit Configuration Examples Section 2 4 ...
Page 69: ...48 Changing SPs During Operation Section 3 3 ...
Page 81: ...60 Other Functions Section 4 5 ...
Page 145: ...124 Other HFU Functions Section 5 7 ...
Page 167: ...146 Detailed Description of Services Section 6 4 ...
Page 229: ...208 Parameters That Can Be Allocated for Programless Communications Appendix ...
Page 237: ......
