Omron CX-PROGRAMMER V8.1 Operation Manual page 221

Function Descriptions
Related Auxiliary
Area Flag
Communications
Instruction Enable
Flags
Related CPU Bus
Unit Area bits
n = CIO 150 + 25 x
unit number
Port 1: n+9
Port 2: n+19
For further information and precautions on related Auxiliary Area flags, refer to the section on TXDU Serial
Communications Instruction in the CS/CJ-series Instruction Reference Manual.
RXD_CPU: Receive String via CPU Unit RS-232C Port
• Function
Receives a text string from the RS-232C port on the CPU Unit.
• Application
RXD_CPU (Storage_location, Number_of_characters)
• Conditions
The serial communications mode of the RS-232C port must be set to no-protocol communications.
• Arguments and Return Values
Variable name
Storage_location
Number_of_characters
196
Address
A202.00 to A202.07
Bit
05
Data type
STRING
INT, UINT, WORD
ON when network communications can be executed. The bit
numbers correspond directly to the internal logic port numbers
Bits 00 to 07: Internal logic ports 0 to 7
ON when TXDU is being executed.
Description
Specifies the storage location for the received
text string.
Specifies the number of characters to receive.
0 to 255
Appendix C