Omron EJ1 User Manual page 147

Programless Communications
Operation Procedure
Monitor
PLC
Address
m+0
m+1
m+2
m+3
m+4
PLC
Address
m+0
m+1
m+2
m+3
m+4
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Once the PLC sets the value of the Read Request Bits, the EJ1 writes the
value set under Programless Upload Settings to the PLC memory area.
• Single Read
The parameters set in the Programless Upload Setting are read once.
3. The EJ1 sets the Read
Response Bits.
Upload Area
Value Address
0001 n+0
Setting Change
n+1
Response Bits
Operation Command
n+2
Response Bits
Communications
n+3
Status
xxxx n+4
Upload Area
Value Address
0000 n+0
Setting Change
n+1
Response Bits
Operation Command
n+2
Response Bits
Communications
n+3
Status
xxxx n+4
5. The EJ1 clears the
Read Response Bits.
Download Area
Value
0001
Setting Change
Request Bits
Operation Command
1. The Read Request Bits
Request Bits
Operation
Command Code
Set value
2. The EJ1 refreshes
the monitor value.
Download Area
4. The Read Request Bits
Value
0000
Setting Change
Request Bits
Operation Command
Request Bits
Operation
Command Code
Set value
Section 5-1
EJ1
HFU TC4/2
are set by the PLC.
xxxx
are set by the PLC.
xxxx