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Network Instructions
Section 3-25
• Sending to a PLC operating as a Host Link Slave
When a CMND(490), SEND(090), or RECV(098) instruction is executed to
a serial port that supports the serial gateway function, the serial gateway
function can send any FINS command or send/receive data.
Communications from a Host Computer (Host Link)
It is possible to send FINS commands from a host computer to the PLC to
which it is connected as well as other devices in the network (CPU Units, Spe-
cial I/O Units, computers, etc.). In this case, the necessary Host Link header
and terminator must be attached to the FINS command when it is sent.
Serial cable
Modbus-RTU Slave device
Modbus RTU
CMND
PLC
Serial cable
PLC
Host Link Slave
CMND
PLC
Host link FINS
Host computer
Host Link
FINS
command
Host Link header
Host Link FCS
and terminator
FINS command
Summary of Contents for SYSMAC CS1D-CPU**
Page 3: ...iv...
Page 29: ...xxx...
Page 185: ...146 List of Instructions by Function Code Section 2 4...
Page 1389: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2...
Page 1390: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits...
Page 1391: ...1352 ASCII Code Table Appendix A...