Addresses - Omron E5AN User Manual

J Addresses
J Number of
elements
J List of services
The variable type is converted to 2-byte ASCII code and loaded to the
frame. The following table shows actually existent variable types.
Variable
type
C0 Double-word data. R/O (read only) parameter for setup area 0.
C1 Double-word data. R/W parameter for setup area 0.
C3 Double-word data. R/W parameter for setup area 1.
* Setup area 1 has no R/O (read only) parameters. Therefore, variable type "C2" does not exist.
Each of the variable types is appended with an address. Express addresses
in 2-byte hexadecimal code, and append with its access size.
The number of elements is expressed in 2-byte hexadecimal code. Specify
the number of elements within the range "0 to 2".
For example, when the number of elements is "0002", this specifies two
items of data from the address.
MRC SRC Name of service
01 01 Read from variable
area
01 02 Write to variable area This service writes to variable areas.
05 03 Read controller
attributes
06 01 Read controller
status
08 01 Echoback test
30 05 Operation
instructions
* In a memory error (RAM error) or initial state (until the control starts to look for the process
value after the power is turned ON), all commands will not be accepted, and no response will
be returned.
2.2 Structure of Command Text
Description
Process
This service reads from variable areas.
This service reads the model No. and com-
munications buffer size.
This service reads the run status of the
controller.
This service carries out the echoback test.
This service carries out run/stop, commu-
nications writing, write mode, save RAM
data, AT (auto-tuning) execution/cancel,
multi-SP, move to protect level, move to
setup area 1 and software reset.
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