
8
Specifications
Section 1-4
Communica-
tions parame-
ters
Communica-
tions mode
Half duplex (full duplex available for RS-232C)
Synchroniza-
tion
Start-stop
Baud rate
300/600/1,200/2,400/4,800/9,600/19,200/38,400 bps (terminal port does not support
38,400 bps)
Note
Using interrupts will limit the baud rates that can be used.
Transmission
mode
RS-232C: Point-to-point
(1:1)
RS-422A/485: Point-to-multipoint
(1:N)
Transmission
distance
RS-232C:
15 m
RS-422A/485:
500 m
Communica-
tions buffers
Receive buffer:
512-bytes
Transmit buffer:
512-bytes
Response flow
control
RTS/CTS flow (for receive buffer of external device)
Note
ASCII also asserts RTS when sending data.
Xon, Xoff flow (for receive buffers of external device and ASCII Unit)
Program
Language
BASIC
No. of tasks
Single task
Memory
capacity
User program
memory area
(BASIC pro-
gram + variable
area)
200 Kbytes
Contents: BASIC source program (up to 4 programs can be loaded) intermediate code,
variables.
Note
The BASIC program has battery backup. Make sure the battery is installed before
operating.
Flash ROM
200 Kbytes
The BASIC program can be stored in the flash ROM from the user memory area. It can
be loaded into the user memory area when the power supply is turned on or the Unit is
restarted.
CPU Unit and
data
exchange
areas
Allocated I/O
words
Special I/O Unit Area: 10 words
Shared
memory area
100 words (no battery backup) as follows:
10 word: Setup Area (can be transferred from the DM area words allocated in the CPU
Unit to the ASCII Unit when the power supply is turned on or when the Unit is
restarted).
90 wordGeneral-purpose area (IORD/IOWR area).
Note
Read/write is possible using IORD/IOWR instructions from the CPU Unit or
PC_EPUT/PC_EGET commands from the ASCII Unit. The position and size of
the IORD area/IOWR area can be adjusted. When the power is turned on or the
Unit is restarted, the data in the DM words allocated in the CPU Unit can be
transferred to the ASCII Unit. (The PC_EPUT and PC_EGET commands are not
supported by the C200H and C200HS.)
Item
Specifications
Model
C200H-ASC11
C200H-ASC21
C200H-ASC31
Содержание C200H-ASC11
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