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Specifications
2-2-5 Host Communications Specifications
COM1 connector
Conforming standard
Communications
method
Baud rate
Sync
Transmission code
Max. number of
connections
Error control
Line length
COM2 connector
Item
Conforming
standard
Communication
s method
Baud rate
Sync
Transmission
code
Error control
Line length
Item
RS-232C or RS-485
EIA/TIA-232-E half duplex or
EIA/TIA-485 half duplex
9600 bps, 19200 bps, 38400 bps, 115200 bps
Start-stop synchronization (stop bit: 1 or 2)
ASCII7 or JIS8 unit symbols
32 (Connection via RS-485 Interface)
Vertical parity (select from even, odd, or none)
For BCC, use or non-use of horizontal parity can be selected.
15 m (when RS-232C is selected)
6)
300 m in total (when RS-485 is selected)
RS-232C
EIA/TIA-232-E half duplex
9600 bps, 19200 bps, 38400 bps, 115200 bps
Start-stop synchronization (stop bit: 1 or 2)
ASCII7 or JIS8 unit symbols
Vertical parity (select from even, odd, or none)
For BCC, use or non-use of horizontal parity can be
selected.
6)
smaller than or equal to 15 m
Note 1) The RS-232C interfaces for COM1 and COM2 have separate
communication ports, and thus it is possible for these interfaces to have
different communication settings
2) RS-232C for COM2 is primarily used for setup. Communication settings
for COM2 return to the initial values upon resetting the power source.
3) For COM1, either RS-232C or RS485 can be selected.
4) The RS-485 pin at COM2 is used for connection with another
Reader/Writer when multi-dropped connection is used.
5) For the method for this setting, please refer to "Host communications
setting" in Section 4-1-1.
6) For high baud rates, a shorter line length may be required. Please be
sure to confirm the proper line length in advance.
Description
Description
Section 2-2
Initial value
(after resetting
power supply)
-
-
9600 bps
Stop bit 2
ASCII 7
• even
• Use for BCC
-
2-7
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