102
Programless Communications
Section 5-6
■
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 EJ1G and PLC settings had been
completed? (The EJ1G settings are enabled only after the EJ1G is reset.)
• The Programless Communications Receive Wait Time may be too short.
Refer to Adjusting Communications Time with PLC on page 105 and
change to a longer wait time.
5-6-3
Detailed Settings
Link Data Settings
Link data settings are made to set which EJ1G 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.
• 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.
Variable type
D7/97
Address
Programless Upload Setting
304
0000
Reserved (Read Response Bits)
0001
Reserved (Setting Change Response Bits)
0002
Reserved (Operation Command Response Bits)
0003
Reserved (Communications Status)
300
0004
Parameter A to be monitored
0005
Parameter B to be monitored
••
•
012F
Variable type
D8/98
Address
Programless Download Setting
30
4
0000
Reserved (Read Request Bits)
0001
Reserved (Setting Change Request Bits)
0002
Reserved (Operation Command Request Bits)
0003
Reserved (Operation Command Code)
30
0
0004
Parameter A to be changed
0005
Parameter B to be changed
••
•
012F
Summary of Contents for EJ1G
Page 3: ...iv ...
Page 17: ...xviii ...
Page 21: ...xxii ...
Page 53: ...32 Unit Configuration Examples Section 2 4 ...
Page 69: ...48 Changing SPs During Operation Section 3 3 ...
Page 81: ...60 Other Functions Section 4 5 ...
Page 145: ...124 Other HFU Functions Section 5 7 ...
Page 167: ...146 Detailed Description of Services Section 6 4 ...
Page 229: ...208 Parameters That Can Be Allocated for Programless Communications Appendix ...
Page 237: ......