426
Serial Communications
Section 8-3
I/O mem-
ory write
commands
WR
CIO AREA WRITE
Writes the specified data (word units only) to the CIO Area, starting from the
specified word.
WL
LINK AREA WRITE Writes the specified data (word units only) to the Link Area, starting from the
specified word.
WH
HR AREA WRITE
Writes the specified data (word units only) to the Holding Area, starting from
the specified word.
WC
PV WRITE
Writes the PVs (present values) of the specified number of timers/counters,
starting from the specified timer/counter.
WD
DM AREA WRITE
Writes the specified data (word units only) to the DM Area, starting from the
specified word.
WJ
AR AREA WRITE
Writes the specified data (word units only) to the Auxiliary Area, starting from
the specified word.
Timer/
counter SV
read
commands
R#
SV READ 1
Reads the 4-digit BCD constant or word address in the SV of the specified
timer/counter instruction.
R$
SV READ 2
Searches for the specified timer/counter instruction beginning at the speci-
fied program address and reads the 4-digit constant or word address in the
SV.
R%
SV READ 3
Searches for the specified timer/counter instruction beginning at the speci-
fied program address and reads the 4-digit BCD constant or word address in
the SV.
Timer/
counter SV
write
commands
W#
SV CHANGE 1
Changes the 4-digit BCD constant or word address in the SV of the specified
timer/counter instruction.
W$
SV CHANGE 2
Searches for the specified timer/counter instruction beginning at the speci-
fied program address and changes the 4-digit constant or word address in
the SV.
W%
SV CHANGE 3
Searches for the specified timer/counter instruction beginning at the speci-
fied program address and changes the 4-digit constant or word address in
the SV.
CPU Unit
status com-
mands
MS
STATUS READ
Reads the operating status of the CPU Unit (operating mode, force-set/reset
status, fatal error status).
SC
STATUS CHANGE
Changes the CPU Unit’s operating mode.
MF
ERROR READ
Reads and clears errors in the CPU Unit (non-fatal and fatal).
Force-
set/force-
reset com-
mands
KS
FORCE SET
Force-sets the specified bit.
KR
FORCE RESET
Force-resets the specified bit.
FK
MULTIPLE FORCE
SET/RESET
Force-sets, force-resets, or clears the forced status of the specified bits.
KC
FORCE
SET/RESET CAN-
CEL
Cancels the forced status of all force-set and force-reset bits.
Model read
command
MM
PLC MODEL READ Reads the model type of the PLC.
Test com-
mand
TS
TEST
Returns, unaltered, one block of data transmitted from the host computer.
Program
area
access
commands
RP
PROGRAM READ
Reads the contents of the CPU Unit’s user program area in machine lan-
guage (object code).
WP
PROGRAM WRITE Writes the machine language (object code) program transmitted from the
host computer into the CPU Unit’s user program area.
I/O mem-
ory com-
pound read
commands
QQMR
COMPOUND
COMMAND
Registers the desired bits and words in a table.
QQIR
COMPOUND
READ
Reads the registered words and bits from I/O memory.
Type
Header
code
Name
Function
Summary of Contents for CP1L-EL20DR-D
Page 3: ...CP1L EL20D CP1L EM30D CP1L EM40D CP1L EL EM CPU Unit Operation Manual Produced July 2017...
Page 4: ...iv...
Page 10: ...x...
Page 22: ...xxii...
Page 34: ...xxxiv Software Licenses and Copyrights 7...
Page 192: ...158 Trial Operation and Debugging Section 5 3...
Page 250: ...216 Automatic Clock Adjustment and Specifying Servers by Host Name Section 6 7...
Page 666: ...632 Trouble Shooting Section 11 7...
Page 696: ...662 Standard Models Appendix A...
Page 805: ...771 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 806: ...772 Connections to Serial Communications Option Boards Appendix F...
Page 836: ...802 PLC Setup Appendix G...
Page 838: ...804 TCP Status Transitions Appendix H...
Page 840: ...806 Ethernet Network Parameters Appendix I...
Page 842: ...808 Buffer Configuration CP1L EL EM Appendix J...
Page 844: ...810 Ethernet Specifications Appendix K...
Page 851: ...Index 817 work words 118 write protection 447...
Page 852: ...818 Index...
Page 854: ...820 Revision History...
Page 855: ......