
97
Programless Communications
Section 5-6
Note
When setting programless uploads and downloads, be sure that the words
being used in PLC memory are not otherwise used in the program or by other
devices.
4.
Check operation.
Turn OFF the power to the EJ1G and PLC and then turn the power back
ON. It does not matter which one is turned ON first.
Refer to the following information and check the operation.
Basic Operations
■
Monitoring EJ1G Set Values
Use the following procedure to confirm that the channel 1 and channel 2 pro-
cess values can be read.
1,2,3...
1.
Set the Read Request Bits allocated in PLC memory (D00500) to 0002.
2.
Confirm that the Read Response Bits (D00000) are set to 0002.
3.
Confirm that D00004 and D00005 are set to the channel 1 and channel 2
process values.
The EJ1G set value will be continuously read if D00500 is set to 0002. Set
D00500 to 0000 to stop reading the set value.
■
Changing EJ1G Set Values
Use the following procedure to confirm that the channel 1 and channel 2 set
points change.
1,2,3...
1.
Set D00504 and D00505 in PLC memory to 0064.
2.
Set the Setting Change Request Bits (D00501) to 0001.
3.
Confirm that the Setting Change Response Bits (D00001) have been set
to 0001.
4.
Use the EST2-2C-MV3 CX-Thermo Support Software to confirm that the
EJ1G channel 1 and channel 2 set points have changed to 100. To check
operation again, set D00501 to 0000 and once D00001 has changed to
0000 repeat the procedure from step 1.
D00005
Monitor Value B
D00505
Set Value B
···
···
···
···
DM Area
Contents (monitor value)
DM Area
Contents (set value)
DM Area Value
Meaning
Procedure step number and confirmation item
D00000
0002
Read Response Bits
Step 2: Set to 0002 by the system.
D00001
0000
Setting Change Response Bits
D00002
0000
Operation Command Response Bits
D00003
*000
Communications Status
D00004
Step 3 Channel 1 Process Value
Step 3: Set to the channel 1 process value by the system.
D00005
Step 3 Channel 2 Process Value
Step 3: Set to channel 2 process value by the system.
D00500
0002
Read Request Bits
Step 1: Set from PLC user program.
D00501
0000
Setting Change Request Bits
Содержание EJ1G
Страница 1: ...USER S MANUAL Modular Temperature Controllers for Gradient Temperature Control EJ1G Cat No H143 E1 01 ...
Страница 3: ...iv ...
Страница 17: ...xviii ...
Страница 21: ...xxii ...
Страница 53: ...32 Unit Configuration Examples Section 2 4 ...
Страница 69: ...48 Changing SPs During Operation Section 3 3 ...
Страница 81: ...60 Other Functions Section 4 5 ...
Страница 145: ...124 Other HFU Functions Section 5 7 ...
Страница 167: ...146 Detailed Description of Services Section 6 4 ...
Страница 189: ...168 Determining the Error from the Current Situation for Heater Burnout Alarm Errors Section 7 8 ...
Страница 229: ...208 Parameters That Can Be Allocated for Programless Communications Appendix ...
Страница 237: ......