Omron E5CN Manual

2.3 Detailed Description of the Services
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2.3 Detailed Description of the Services
■ Read Variable Area
This service reads data from a variable area.
Service Request PDU
Service Request PDU
(1) Variable Type and Read Start Address
For details on variable types and read start addresses, see SECTION 3
Communications Data for CompoWay/F and SYSWAY.
(2) Bit Position
The E5CN does not support bit access. Fixed to “00.”
(3) Number of Elements
(4) Response Code
Normal Completion
Error Occurred
Number of
elements
Processing
0000 The read operation is not performed (read data is not
appended to the service response PDU), and processing
ends in “normal completion.”
0001 to 0002 The read operation is performed, and processing ends in
“normal completion.”
Response code Name Description
0000 Normal completion No errors were found.
Response code Error name Cause
1001 Command too long The command is too long.
1002 Command too short The command is too short.
1101 Area type error The variable type is wrong.
1103 Start address out-of-
range error
The read start address is out
of range.
MRC SRC
0
222424
10 001
Variable
type
Read
start address
Bit
position
Number of
elements
MRC SRC
0
22 4
101
Response
code
Read data (for number
of elements)
0, 8, or 16

Omron E5CN Specifications

General

Brand	Omron
Model	E5CN
Category	Temperature Controller
Language	English