408
Serial Communications
Section 8-3
Auxiliary Area Flags
and Bits
The Modbus-RTU command set in the DM fixed allocation words for the Mod-
bus-RTU Easy Master is automatically sent when the Modbus-RTU Master
Execution Bit is turned ON. The results (normal or error) will be given in corre-
sponding flags.
Word
Bit
Port
Contents
A640
00
EM-type
CPU
Units:
Serial
port 2
EL-type
CPU
Units:
Serial
port 1
Modbus-RTU Master Execution Bit
Turned ON: Execution started
ON: Execution in progress.
OFF: Not executed or execution completed.
01
Modbus-RTU Master Execution Normal Flag
ON: Execution normal.
OFF: Execution error or still in progress.
02
Modbus-RTU Master Execution Error Flag
ON: Execution error.
OFF: Execution normal or still in progress.
A641
00
EM-type
CPU
Unit:
Serial
port 1
Modbus-RTU Master Execution Bit
Turned ON: Execution started
ON: Execution in progress.
OFF: Not executed or execution completed.
01
Modbus-RTU Master Execution Normal Flag
ON: Execution normal.
OFF: Execution error or still in progress.
02
Modbus-RTU Master Execution Error Flag
ON: Execution error.
OFF: Execution normal or still in progress.
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: ......