Omron E5AN Communications Manual

CompoWay/F
2.3 Detailed Description of the Services
2-9
2.3 Detailed Description of the Services
■ Read Variable Area
This service reads data from the 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/AN/EN/GN 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 ser-
vice response PDU), and processing
ends in “normal completion.”
Double word
(variable type C0,
C1, or C3)
0001 to 0019
(1 to 25)
The read operation is performed and
processing ends in a normal comple-
tion.
Word (variable
type 80, 81, or 83)
0001 to 0032
(1 to 50)
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.
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)
Number of elements
× 8 or 4

Omron E5AN Specifications

General

Brand	Omron
Model	E5AN
Category	Temperature Controller
Language	English