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479
Analog Output Units
Section 9-3
■
Wiring for Analog Outputs
Note
(1) Connect the shield to the FG terminal to prevent noise.
(2) Separate wiring from power lines (AC power supply lines, high-voltage
lines, etc.)
(3) When there is noise in the power supply line, install a noise filter on the
input section and the power supply.
(4) When external power is supplied (when range codes are set), or when
the power is interrupted, there may be a pulse status analog output of up
to 1 ms. If this status is a problem, take the following measures.
• Turn ON the power to the CP1L-EL/EM CPU Unit, check the operation
status, and then turn ON the power at the load.
• Turn OFF the power to the load and then turn OFF the power to the
CP1L-EL/EM CPU Unit.
Allocating Output Words
Four output words (n+1 to n+4) are allocated, beginning from the first word
following the last I/O word allocated to the CPU Unit or already-connected
Expansion I/O Unit or Expansion Unit. For CP1W-DA021, two output words
(n+1, n+2) are allocated.
Writing Set Data
Write the output use and the range code to words n+1 and n+2. For CP1W-
DA021, only word n+1 can be used. The D/A conversion will start when the
set data is transferred from the CPU Unit to the Analog Output Unit.
+
V OUT
COM
I OUT
−
+
V OUT
COM
I OUT
−
Analog
output
unit
Analog
device
with
voltage
input
Analog
output
unit
Analog
device
with
current
input
2-core shielded
twisted-pair cable
FG
2-core shielded
twisted-pair cable
FG
3. Creating the Ladder Program
Words n+1 to n+4
CP1W-DA041/DA042
Analog Output Unit
15 0
1 0
0
0
0
0
0
8
7
6
5
4
3
2
1
Wd (n+1)
15 0
1 0
0
0
0
0
0
8
7
6
5
4
3
2
1
0
0
Analog output 2
Analog output 1
Analog output 4
Analog output 3
Wd (n+2)
Even if analog outputs are not
used, bits 15 in words n+1
and n+2 must be set to 1.
Even if analog outputs are not
used, bits 15 in words n+1
and n+2 must be set to 1.
Содержание CP1L-EL20DR-D
Страница 3: ...CP1L EL20D CP1L EM30D CP1L EM40D CP1L EL EM CPU Unit Operation Manual Produced July 2017...
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Страница 10: ...x...
Страница 22: ...xxii...
Страница 34: ...xxxiv Software Licenses and Copyrights 7...
Страница 178: ...144 Connecting the CX Programmer Section 5 1 Click the Connect button to connect and then connection online is completed...
Страница 192: ...158 Trial Operation and Debugging Section 5 3...
Страница 250: ...216 Automatic Clock Adjustment and Specifying Servers by Host Name Section 6 7...
Страница 666: ...632 Trouble Shooting Section 11 7...
Страница 696: ...662 Standard Models Appendix A...
Страница 805: ...771 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 806: ...772 Connections to Serial Communications Option Boards Appendix F...
Страница 836: ...802 PLC Setup Appendix G...
Страница 838: ...804 TCP Status Transitions Appendix H...
Страница 840: ...806 Ethernet Network Parameters Appendix I...
Страница 842: ...808 Buffer Configuration CP1L EL EM Appendix J...
Страница 844: ...810 Ethernet Specifications Appendix K...
Страница 851: ...Index 817 work words 118 write protection 447...
Страница 852: ...818 Index...
Страница 854: ...820 Revision History...
Страница 855: ......