![background image](http://html1.mh-extra.com/html/omron/ej1-ethercat/ej1-ethercat_user-manual_742375171.webp)
146
Programless Communications
Section 5-1
• Single operation instruction (bit specification)
Executes the bit specification operation commands a single time from
among the parameters set in the Download Area Setting.
V1.2
Upload Area
Download Area
Memory
0003
Setting Change
Response Bits
Address
Memory
Address
m+0
m+1
m+2
m+4
···
n+0
n+1
n+2
n+4
Setting Change
Request Bits
zzzz
Monitor value
Communications
Status
m+3
n+3
Operation
Command Code
Operation
Command Code
Read Response
Bits
Read Request Bits
0003
Upload Area
Download Area
Memory
0000
Setting Change
Response Bits
Address
Memory
Address
m+0
m+1
m+2
m+4
n+0
n+1
n+2
n+4
Setting Change
Request Bits
zzzz
Monitor value
Communications
Status
m+3
n+3
Read Response
Bits
Read Request Bits
0000
PLC
PLC
EJ1
HFU
TC4/2
zzzz
1. Changes the bit specification
parameter on the PLC side.
3. The EJ1 reads the bit
specification parameter.
4. The EJ1 sets the Operation
Command Response Bits.
2. The Operation Command
Request Bits are set by the PLC.
5. The Operation Command Request
Bits are cleared by the PLC.
6. The EJ1 clears the Operation
Command Response Bits.
Executes the
operation
instruction.
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 ...
Page 305: ......