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Outline of Serial Communications
Section 5-1
121
Note
For the RS-232C port on the CPU Unit, if a protocol not supported by the
CX-Simulator in the PLC Setup settings is set, communications can not be
performed.
For the Serial Communications Board/Unit, if the Serial Communications
mode of System Setup is No-protocol, communications can not be performed.
Supported Serial Communications Instructions
The instructions related to serial communications that can be used in a pro-
gram and their supporting status are shown below.
Instruction Support
Remarks
TXD/RXD instruction
Yes with
No-protocol
PMCR instruction
No
NOP for instruction processing.
STUP instruction
Yes
SEND/RECV instructions
Yes
Slave initiation with Host Link (FINS communications)
CMND instruction
Yes
Slave initiation with Host Link (FINS communications)
I/O Memory Allocation
The outline of I/O memory allocation for each piece of hardware and the sup-
porting status in the CX-Simulator are shown below. (Only for No-protocol and
Host Link)
Hardware
Area
Allocation name
Support
RS-232C Port Settings Selection
Yes
Communications mode
Yes
Data bits/Stop bits/Parity/Baud rate
Yes
No-protocol mode delay
Yes
CPU Unit’s Unit Number in Host Link Mode
Yes
PLC Setup Area
(RS-232C Port Set-
tings)
No-protocol frame format
Yes
RS-232C Port Error Flag (A39204)
Yes
RS-232C Port Send Ready Flag (A39205)
Yes
RS-232C Port Reception Completed Flag (A39206)
Yes
RS-232C Port Reception Overflow Flag (A39207)
Yes
RS-232C Port Reception Counter (A393)
Yes
RS-232C Port Restart Flag (A52600)
Yes
RS-232C Port Error Code (A528)
Yes
CPU Unit
RS-232C port
(Port 2)
Auxiliary Area
RS-232C Port Settings Changing Flag (A61902)
Yes
Port settings
Yes
Serial communications mode
Yes
Start bits/Data length/Stop bits/Parity/Baud rate
Yes
Send delay time
Yes
CTS control
Yes
Setup Area
Host Link unit number
Yes
Software Switches
-
Error log EEPROM error
No
Protocol data error
No
Port setting status
Yes
Communications status
-
Transmission control signal status
Yes
Status Area
(I/O Memory Alloca-
tions)
Transmission error status
Yes
Restart Bit (A501: Unit, A60800: Inner Board)
Yes
Serial Commu-
nications
Unit/Board
Auxiliary Area
Port 1 and Port 2 Port Settings Change Bits (A620 to A636)
Yes
Serial Commu-
nications Board
Auxiliary Area
Error Details (A424)
No
Yes: Supported No: Not supported -: Not used
Summary of Contents for CX-Simulator 1.9
Page 1: ...Cat No W366 E1 10 CX Simulator Ver 1 9 SYSMAC WS02 SIMC1 E OPERATION MANUAL...
Page 2: ......
Page 3: ...SYSMAC WS02 SIMC1 E CX Simulator Ver 1 9 Operation Manual Revised December 2009...
Page 24: ...xxv...
Page 30: ...xxxi...
Page 35: ...xxxvi...
Page 39: ......
Page 63: ...Comparison of the CX Simulator and SYSMAC CS CJ series PLCs Section 1 6 24...
Page 75: ...Installing and Uninstalling the Software Section 2 1 36...
Page 157: ...Task Debugging Section 4 4 118...
Page 195: ...Connection with Application Programs Section 7 2 156...
Page 225: ...Checking the Result Section 8 5 186...
Page 277: ...Other Functions Section 9 4 238...
Page 289: ...Other Tips for Troubleshooting Section 10 3 250...
Page 304: ......
Page 305: ......