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178
Detailed Description of Services
Section 6-4
6-4-5
Composite Registration Read
This service reads in order the contents of addresses specified in a variable
area composite read registration.
■
Command
Service Request PDU
■
Response
Service Response PDU
1.
Response Codes
2.
Variable Type
Refer to
Parameter List
on page 233.
3.
No. of Read Data Items
MRC
2
0
1
SRC
2
1
0
Response code
Error name
Cause
1001
Command too long
The command is too long.
110B
Response too long
The number of elements exceeds the
maximum.
7011
Operation error (7011)
The command cannot be executed due
to a device error.
0000
Normal completion
Processing was completed normally.
Read data length
No. of read data items
For double-word (8-digit) variable type
20 max. (0014H)
For word (4-digit) variable type
MRC
2
4
SRC
2
2
2
0
1
1
0
Response
code
Variable
type
Read data
Read data
Variable
type
No. of elements
×
8 or 4
No. of elements
×
8 or 4
Summary of Contents for EJ1 EtherCAT
Page 2: ...EJ1 Modular Temperature Controllers User s Manual Revised July 2008 ...
Page 3: ...iv ...
Page 19: ...xx ...
Page 213: ...188 Detailed Description of Services Section 6 4 ...
Page 227: ...202 Detailed Description of Services Section 7 5 ...
Page 303: ...278 Index ...
Page 305: ......