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860
Serial Communications Instructions
Section 3-24
Flags
Precautions
RXD(235) can be used only for the CPU Unit’s CS-232C port and only when
the port is set to no-protocol mode.
The following can be set in the PLC Setup for the frame format for receiving
messages.
1
2
3
4
5
6
1
3
5
2
4
6
1
3
5
2
4
6
1 2 3 4 5 6 0...
1 2 3 4 5 6 0...
1 2 3 4 5 6 0...
1 2 3 4 5 6 0...
1 2 3 4 5 6 0...
1 2 3 4 5 6 0...
LF
CR
No Start or End Code
Start and End Code
Only Start Code
CR+LF End Code
Only End Code
Start and CR+LF End Code
Receive bytes: Specified
in the PC Setup
Receive bytes after ST:
Specified in the PC Setup
Receive bytes before
ED: 256 max.
Receive bytes between
ST and ED: 256 max.
Receive bytes before
CR+LF: 256 max.
Receive bytes between
ST and CR+LF: 256 max.
Received
CPU Unit's CS-232C port
Bytes
Max: 256 bytes
N bytes
stored in the
specified or-
der.
When receiving the most signifi-
cant bytes first is specified (0):
When receiving the least signifi-
cant bytes first is specified (0):
Most signifi-
cant bytes
Least signif-
icant bytes
Most signifi-
cant bytes
Least signif-
icant bytes
Name
Label
Operation
Error Flag
ER
ON if the no-protocol mode is not set in the PLC Setup.
ON if the value of C is not within range.
ON if the value for N is not between 0000 and 0100 hex.
With the CS1D CPU Units: ON if the active and standby
CPU Units could not be synchronized.
OFF in all other cases.
Summary of Contents for CJ1G-CPUxx
Page 3: ...iv N o t i c e ...
Page 5: ...vi ...
Page 21: ...xxii Conformance to EC Directives 6 ...
Page 35: ......
Page 1131: ...1110 CJ series Instruction Execution Times and Number of Steps Section 4 2 ...