1047
3. Instructions
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Other Instructions
3
FRMCV
FRMCV
Applicable Program Areas
Operands
*1 Only an index register (IR0 to 15) can be specified in D.
z Operand Specifications
Flags
Function
When the execution condition is ON, FRMCV(284) executes the following operations.
1. The CV-series PLC memory address specified in S is converted to its equivalent CV-series data area
address.
2. FRMCV(284) determines the CS/CJ-series PLC memory address that corresponds to the same CV-
series data area address.
3. The CS/CJ-series PLC memory address is output to D. (An index register (IR0 to IR15) must be
specified for D.)
Instruction Mnemonic Variations
Function
code
Function
CONVERT ADDRESS
FROM CV
FRMCV @FRMCV 284
Converts a CV-series PLC memory address to its corre-
sponding CS/CJ-series PLC memory address.
Symbol
FRMCV
Area
Function block
definitions
Block program areas Step program areas Subroutines Interrupt tasks
SFC action or transition
programs
Usage OK Ok OK OK OK OK
Operand Description Data type Size
S Word containing the CV-series PLC memory address UINT 1
D Destination Index Register
IR*
1
only
2
Area
Word addresses
Indirect DM/EM
addresses
Con-
stants
Registers Flags
Pulse
bits
TR
bits
CIO WR HR AR T C DM EM
@DM
@EM
*DM
*EM
DR IR
Indirect
using IR
TK CF
S OKOKOKOKOKOKOK Ok OK OK OK OK --- OK
--- --- --- ---
D --- --- --- --- --- --- --- --- --- --- --- --- OK ---
Operand Description Data type
Error Flag P_ER • ON if S specifies one of the following PLC memory addresses that do not exist in the
CS/CJ-series:
• TR Area (09FF hex)
• CPU Bus Link (G) Area (0A00 to 0AFF hex)
• SFC Areas (0D00 to 0E3F hex)
• OFF in all other cases.
S: Word containing the CV-series PLC memory address
D: Destination Index Register
FRMCV(284)
S
D
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