CS1-105
CS1
CS1 Unit Descriptions ASCII Units
C200H-ASC@@
ASCII Units
C200H-ASC@@
Easily Perform ASCII Data Communications
• Perform ASCII communications with a wide range of external
devices.
• The C200H-ASC11 /ASC 21 /ASC31 func ti on as spe cial pro-
cessing units with BASIC programming.
• Large-capacity user memory: 200 Kbytes
• Model a va ila ble with RS422A/485 port.
• V arious f orms of data e xchanges with CPU Unit: Select the b est
method for the read/write trigger and timing.
• High-sp eed dat a e xc hanges poss ib le with s hared m emory (not
dependant on I/O refresh).
• A wide range of interrupt processes: Interrupts fro CPU to ASCII
Unit, comm u nic at ion s in terrupt, key inter rupts , tim er inte rrupts ,
error interrupts, etc.
• Easy control of transmission control signals.
• Calculation instructions for error check codes.
• Many BASIC debugging functions (break points, 1-step execu-
tion, execution stop monitoring, etc.)
• Error log supported with up to 30 error records.
C200H-ASC11
C200H-ASC21
C200H-ASC31
Function
The ASCII Units support BASIC language programming and RS-
232C and RS422A/485 serial communications. BASIC programming
enables ASCII communications with essential any external device. It
can also be used as a special processing unit to aid the CPU Unit
without using ex ternal communications.
The C200H-ASC21/ASC21/ASC31 provided shared memory with
the CPU Unit, and both the ASC II Unit and the C PU Unit can access
the shared memory asynchronously, providing for high-speed data
exchanges between the two Units without using interrupts.
System Co nfigur ation
RS-232C
RS-232C
BASIC
program
Terminal
(e.g., Windows
Hyperterminal)
General-purpose
external device
CS1-106
CS1
CS1 Unit Descriptions ASCII Units
C200H-ASC@@
Specifications
Note: The C200H-ASC02 can also be used with CS1 PLCs.
Classification User memory Shared memory Serial
communications
ports
Unit numbers Model
C200H Special I/O
Unit 200 Kbytes Provided
(90 words in I/O memory) RS-232C x 2 0 to F C200H-ASC11
RS-232C x 1, RS-
422A/485 x 1 C200H-ASC21
RS-232C x 2, RS-
232C x 1 f or terminal C200H-ASC31
