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OMRON ASCII Module C200H-ASC11
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ASCII Unit
This program runs independently from the ladder-diagram program in the PLC.

Name:ASCII Module.
Model:C200H-ASC11.
Communications port>Port 1:RS-232C(peripheral device or termi-nal connection).
Communications port>Port 2:RS-232C(peripheral device connec-tion).
OMRON

ASCII Unit
With an ASCII Unit, PLC data can be displayed onto a monitor or printed out in real time. Tennon-I/O Words determined by the unit number are required when the Unit is mounted to any C200HX/HG/HE Rack. The ASCII Unit is easily programmed in either BASIC or assembler.
This program runs independently from the ladder-diagram program in the PLC.

The ASCII Units support BASIC language programming and RS-232C and RS422A/485 serial communications. BASIC pro-
gramming 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 external communications.
The C200H-ASC21/ASC21/ASC31 provided shared memory with the CPU Unit, and both the ASCII Unit and the CPU Unit can
access the shared memory asynchronously, providing for high-speed data exchanges between the two Units without using in-terrupts.


Features
• Perform ASCII communications with a wide range of external devices.
• The C200H-ASC11/ASC21/ASC31 function as special processing units with BASIC programming.
• Large-capacity user memory: 200 Kbytes
• Model available with RS422A/485 port.
• Various forms of data exchanges with CPU Unit: Select the best method for the read/write trigger and timing.
• High-speed data exchanges possible with shared memory (not dependant on I/O refresh).
• A wide range of interrupt processes: Interrupts fro CPU to ASCII Unit, communications interrupt,key interrupts, timer
interrupts, error interrupts, etc.
• Easy control of transmission control signals.
• Calculation instructions for error check codes.
• Many BASIC debugging functions (break points, 1-step execution, execution stop monitoring, etc.)
• Error log supported with up to 30 error records

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