Detailed Settings - Omron EJ1 User Manual

Programless Communications
5-1-3

Detailed Settings

Link Data Settings
If Not Operating Correctly
Check the following items if the operation is incorrect.
• Are the wiring and settings correct?
• Was the power turned OFF once the EJ1 and PLC settings had been
completed? (The EJ1 settings are enabled only after the EJ1 is reset.)
• The Programless Communications Receive Wait Time may be too short.
Refer to Adjusting Communications Time with PLC on page 121 and
change to a longer wait time.
Link data settings are made to set which EJ1 values to monitor or change.
• Monitor
The parameters to be monitored are set under Programless Upload Set-
tings.
The HFU collects monitor values based on these settings for the Units con-
nected to the HFU and transfers the values to PLC memory.
Address
0000
0001
0002
0003
0004
0005
012F
• Changing Settings
The parameters to be changed are set under the Programless Download
Settings.
The HFU reads the values in a PLC memory area according to these set-
tings and then refreshes the settings for Units connected to the HFU.
Address
0000
0001
0002
0003
0004
0005
012F
Variable type
D7/97
Programless Upload Setting
Reserved (Read Response Bits)
Reserved (Setting Change Response Bits)
Reserved (Operation Command Response Bits)
Reserved (Communications Status)
Parameter A to be monitored
Parameter B to be monitored
•
•
•
Variable type
D8/98
Programless Download Setting
Reserved (Read Request Bits)
Reserved (Setting Change Request Bits)
Reserved (Operation Command Request
Bits)
Reserved (Operation Command Code)
Parameter A to be changed
Parameter B to be changed
•
•
•
Section 5-1
117