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137
Programless Communications
Section 5-1
5-1-4
Description of Operation
Set values are read and changed and operation commands are executed by
setting a value in a Request Bits allocated in a PLC memory area.
The Request Bits are set to the following values.
Note
To change the Request Bits, first set the Request Bits to 0000 then change
the setting. The same applies when periodically executing the same operation
command.
Example: Changing a Single Action to a Multi Action
1,2,3...
1.
For a single action, the Response Bits are set to the single action value,
0001.
Note
The Request Bits cannot be changed directly to 0002 because the
setting will not be accepted.
2.
Change the Request Bits to 0000, then confirm that the Response Bits
have been set to 0000.
DM Area
Meaning
D00000
Read Response Bits
D00001
Setting Change Response Bits
D00002
Operation Command Response Bits
D01500
Read Request Bits
D01501
Setting Change Request Bits
D01502
Operation Command Request Bits
Bits
Value
Action
Read Request
Bits
0000: Stop operation
Stops operation after a series of operations has been completed.
0001: Single
Reads the parameters set in the Programless Upload Setting Area once.
0002: Multi
Continuously reads the parameters set in the Programless Upload Set-
ting Area.
0003: Read setting
Reads the parameters set in the Programless Download Setting Area
and writes them to the upload area.
0004: Read setting 2
Reads the parameters set in the Programless Download Setting Area
and writes them to the download area.
Setting Change
Request Bits
0000: Stop operation
Stops operation after a series of operations has been completed.
0001: Single
Changes all of the parameters set in the Programless Download Setting.
0002: Multi
The first time, all of the parameters set in the Programless Download
Setting are changed. Afterwards, changes are made only to parameters
for which values have been changed.
Operation
Command
Request Bits
0000: Stop operation
Stops operation after a series of operations has been completed.
0001: Single
Executes the operation command set in the Operation Command Code.
0002: Multi
The first time, the operation command set in the Operation Command
Code is executed. Afterwards, the operation command is executed each
time the Operation Command Code changes.
0003: Single
(Bit specification)
Executes the bit specification operation command a single time.
0004: Multi
(Bit specification)
The first time, all bit specification operation commands are executed.
Afterwards, operation commands for channels that have been changed
are executed.
V1.1
V1.2
V1.2
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 ...
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