Owner's manual

App-1
IM MW100-17E
Appendix
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2
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AppApp
Index
Appendix 1 Serial Interface (Optional) Specifications
The following are the specifications for both types of serial interface (optional) for the
main unit, RS-232 and RS-422A/485.
RS-232 Specifications
Connector Type D-Sub, 9-pin, Plug
Electrical and mechanical spec. Conforms with EIA-574 (EIA-232 (RS-232) standard for
9-pin)
Connection method Point-to-point
Synchronization method Start-stop (asynchronous) system
Baud rate Select from1200, 2400, 4800, 9600, 19200, 38400, 57600,
115200
Start bit 1 bit, fixed
Data length Select either 7 or 8 bits
(When outputting data in binary format, you must use 8 bits.)
Parity Select Odd, Even, or None
Stop bit Select either 1 or 2 bits
Hardware handshaking For RS and CS signals, select always
TRUE, or to use as a
control line.
Software handshaking Select to control send using X-ON and X-OFF signals, or to
use X-ON and X-OFF signals with send/receive signals.
X-ON(ASCII 11H), X-OFF(ASCII 13H)
Receive buffer length 2047 bytes
RS-422A/485 Specifications
Terminal Type Six terminals; clamp, 0.14 to 1.5mm
2
(AWG26 to 16)
Electrical and mechanical spec. Complies with EIA-422A (RS-422A) and EIA-485 (RS-485)
Connection method Multidrop: 4-wire: 1:32
2-wire: 1:31
Communication mode Half-duplex
Synchronization method Start-stop (asynchronous) system
Baud rate Select from 1200, 2400, 4800, 9600, 19200, 38400, 57600,
115200
Start bit 1 bit, fixed
Data length Select either 7 or 8 bits
Parity Select Odd, Even, or None
Stop bit Select either 1 or 2 bits
Receive buffer length 2047 bytes
Electrical characteristics 6 points: FG, SG, SDB, SDA, RDB, RDA
SG, SDB, SDA, RDB, and RDA terminals are functionally
isolated from the internal circuitry of the main unit.
The FG terminal is frame ground.
Communication Distance
1.2 km maximum
T
ermination Resistance
Built-in (with switch) 120 Ω, 1/2 W
Appendix