Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 - Convert Address to CV: Tocv(285)

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Other Instructions Section 3-31
Example 2: Converting a CV-series Program with PLC Memory
Addresses Stored directly in Index Registers
In this FRMCV(284) example, the CV-series PLC memory address is speci-
fied directly in S.
3-31-8 CONVERT ADDRESS TO CV: TOCV(285)
Purpose Converts a CS/CJ-series PLC memory address to its corresponding CV-
series PLC memory address. TOCV(285) can be useful when converting CS/
CJ-series programs that use PLC memory addresses so that they are com-
patible with CV-series PLCs.
This instruction is supported by CS1-H, CJ1-H, CJ1M, and CS1D CPU Units
only.
Ladder Symbol
Variations
0200Hex
000000
CIO 0512
CIO 0512
MOV
#0200
IR0
S
D
000000
FRMCV
#0200
IR0
S
D
0200Hex
#0200
IR0
#000C200IR
• CV-series program
(Program using PLC memory
addresses stored directly in IR)
• CS/CJ-series program
Equivalent program
In this case, the PLC memory address
0200 hex is stored in Index Register IR0.
In this case, the CV-series PLC memory address 0200
hex corresponds to CIO 0512. The CS/CJ-series PLC
memory address for CIO 0512 is 0000C200 hex, so this
value is stored in IR0.
CV-series PLC
memory address: 0200
hex
CV-series word
address
CS/CJ-series
word address
CS/CJ-series PLC
memory address:
00C200 hex
TOCV(285)
S
D
S: Index Register containing the
CS/CJ-series PLC memory
address
D: Destination word
Variations Executed Each Cycle for ON Condition TOCV(285)
Executed Once for Upward Differentiation @TOCV(285)
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification Not supported.