Omron EJ1 User Manual

129
Programless Communications Section 5-1
Setting Changes To change EJ1 settings from the PLC, first change the values in the Download
Area in the PLC memory and then set the Setting Change Request Bits.
The EJ1 will then read the Download Area in the PLC memory and change
the corresponding settings.
• Single Action
Any parameters in the download area settings that have changed from the
previous values are written.
Upload Area Download Area
ValueAddress ValueAddress
m+0
m+1
m+2
m+4
···
n+0
n+1
n+2
n+4
m+3 n+3
PLC
Upload Area Download Area
Value
0001 0001
Operation Command
Response Bits
Address ValueAddress
m+0
m+1
m+2
m+4
···
n+0
n+1
n+2
n+4
Operation Command
Request Bits
yyyy
Communications
Status
m+3 n+3
Operation
Command Code
PLC
EJ1
HFU TC4/2
yyyy yyyy
Read Response
Bits
Monitor Value
Read Request Bits
0000 0000
Operation Command
Response Bits
Operation Command
Request Bits
yyyy
Communications
Status
Operation
Command Code
Read Response
Bits
Monitor Value
Read Request Bits
4. The EJ1 sets the Setting
Change Response Bits.
6. The EJ1 clears the Setting
Change Response Bits.
5. The Setting Change Request
Bits are cleared by the PLC.
2. The Setting Change Request
Bits are set by the PLC.
3. The EJ1 reads the
set value.
1. Set value is changed by
the PLC.

Omron EJ1 Specifications

General

Brand	Omron
Model	EJ1
Category	Temperature Controller
Language	English