143
Programless Communications
Section 5-1
• Multi Action
The first time, all of the parameters set in the Download Area Setting are
changed. Afterwards, changes are made only to parameters for which val-
ues have been changed.
• Stop Operation
Operation is stopped after a series of operations has been completed.
Note
(1) Always set the Setting Change Request Bits last. If the Setting
Change Request Bits are set before the set value is changed, an
unexpected value will be written.
(2) All programless download parameters will be updated when the
Setting Change Request Bits are set. If set values are not the
same in EJ1 and PLC memory, e.g., when the power is turned ON
or the bank is changed, always change the values in PLC memo-
ry first and then set the Setting Change Request Bits.
Upload Area
Download Area
Value
0002
Operation Command
Response
Bits
Address
Value
Address
m+0
m+1
m+2
m+4
···
n+0
n+1
n+2
n+4
Operation Command
Request Bits
YYYY
Monitor value
Communications
Status
m+3
n+3
Operation
Command Code
Read Response
Bits
Read Request Bits
0002
PLC
EJ1
HFU
TC4/2
YYYY
YYYY
1. The Setting Change Request
Bits are set by the PLC.
2. The EJ1 sets the Setting
Change Response Bits.
3. The EJ1 repeatedly
reads the set values.
Upload Area
Download Area
Value
0000
Operation Command
Response Bits
Address
Value
Address
m+0
m+1
m+2
m+4
···
n+0
n+1
n+2
n+4
Operation Command
Request Bits
YYYY
Monitor value
Communications
Status
m+3
n+3
Operation
Command Code
Read Response
Bits
Read Request Bits
0000
PLC
2. The EJ1 clears the Setting
Change Response Bits.
1. The Setting Change Request
Bits are cleared by the PLC.
Содержание EJ1 EtherCAT
Страница 2: ...EJ1 Modular Temperature Controllers User s Manual Revised July 2008 ...
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Страница 213: ...188 Detailed Description of Services Section 6 4 ...
Страница 227: ...202 Detailed Description of Services Section 7 5 ...
Страница 251: ...226 Determining the Error from the Current Situation for Heater Burnout Alarm Errors Section 8 8 ...
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