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70
Expansion Remote I/O
Section 4-4
• Communications cannot be performed with the unit number registered in
the configuration.
Note
No processing will be performed and reading will be completed nor-
mally if a parameter is allocated for a unit number that is not regis-
tered in the configuration.
3.
Check the parameters that were read. The parameter specified in step 1
will be read for each unit number and channel that has been allocated. If
the Read Parameter Monitor is set to FFFF hex, the parameters for individ-
ual unit numbers and channels will maintain the previous values.
Programming
Example for Reading
Parameters
The program uses CIO 3200 to CIO 3263 as the OUT Area and CIO 3300 to
CIO 3363 as the IN Area for an OMRON CS/CJ-series DeviceNet Unit.
Operation
• The set point of a TC2 Unit (unit number 0, ch1) is read.
• The allocation number of the set point (18 (0012 hex)) is set in the Read
Parameter allocated in CIO 3201.
• If reading is completed normally, allocation number of the set point (18
(0012 hex)) is set in the Read Parameter Monitor allocated in CIO 3301.
• The set point is stored in the Unit 0 Ch1 Parameter allocated in CIO 3302
and then the value is transferred to D0100.
Example of Ladder
Programming
Unit 1, ch1 parameter
Unit 1, ch2 parameter
n+0
n+1
n+2
n+3
n+4
n+5
n+6
Address
m+0
m+1
m+2
m+3
m+4
m+5
m+6
Output Completed Flags
Read Parameter Monitor
---
Unit 0, ch1 parameter
Unit 0, ch2 parameter
Unit 1, ch1 parameter
Unit 1, ch1 parameter
OUT Enable Bit
Read Parameter
Write Parameter
Unit 0, ch1 parameter
Unit 0, ch2 parameter
Address
PLC Memory IN Area
Example:
Set to 0012 hex.
Set 0012 hex (set point).
PLC Memory OUT Area
Values read.
MOV(021)
#0012
3201
000000
3301
#0012
MOV(021)
3302
D0100
0000
000001
END(001)
0004
0007
ASL(025)
0000
ASL(025)
0000
=
Execution condition
CIO 3201 (Read Parameter) is set to #0012
(allocation number for set point).
When CIO 3301 (Read Parameter Monitor) is set to #0012
(allocation number for set point), the content of CIO 0000
is shift one bit to the left (CIO 000001 turns ON).
CIO 3302 is set to the set point for channel 1 of unit 0
and this value is transferred to D0100.
The content of CIO 0000 is shifted one bit to the left
(CIO 000002 turns ON).
Содержание EJ1 - 07-2008
Страница 1: ...DeviceNet Communications Unit for EJ1 Temperature Controllers Cat No H155 E1 02 OPERATION MANUAL...
Страница 2: ...DeviceNet Communications Unit for EJ1 Temperature Controllers Operation Manual Revised July 2008...
Страница 3: ...iv...
Страница 19: ...xx...
Страница 33: ...14 Initial Temperature Controller Settings Section 1 4...
Страница 53: ...34 Wiring the Temperature Controllers Section 3 4...
Страница 101: ...82 Ladder Programming Examples Section 4 6...
Страница 143: ...124 Sending Explicit Messages Section 6 5...
Страница 155: ...136 Message Communications Characteristics Section 7 2...
Страница 163: ...144 Maintenance Section 8 2...
Страница 189: ...170 Allocation Numbers for Configurators Manufactured by Other Companies Appendix B...
Страница 197: ...178 Index...