Contec MC-310B-DC355, Руководство пользователя, Страница: 18 / 33

2. Each Component Function
MC-310B-DC355
13
(10) DIP SW
1 - 3 : It is a general-purpose DIP switch.
This switch allows for the acquisition of settings from the application.
4 : Use it for choosing device boot.
SW No. Operation Contents
1 -
It is a general-porpose switch.
This switch allows for the acquisition of settings from the application.
2 -
It is a general-porpose switch.
This switch allows for the acquisition of settings from the application.
3 -
It is a general-porpose switch.
This switch allows for the acquisition of settings from the application.
4
ON When booting from the SD card, turn it ON.
OFF Default. When booting with the built-in NAND Flash ROM, turn it ON.
(11) Communication connector
RS-422/RS-485 communication (x 2 ports) are provided. Use the attached communication connector.
The applicable cable is AWG28-16.
Pin No. Signal name Pin No. Signal name
1 TXD0+ 6 TXD1+
2 TXD0- 7 TXD1-
3 RXD0+ 8 RXD1+
4 RXD0- 9 RXD1-
5 GND 10 GND
The data transfer mode setting switch is used to switch between full duplex and half duplex. Set the
appropriate data transfer mode for the device with which you are communicating. Bits 1 to 6 are used
to set the data transfer mode. SW1 corresponds to Port 0 and SW2 to Port 1. The default is “half
duplex”.
Transmission
mode
Half-duplex [Half]
< Initial value >
Full duplex [Full]
When there are no RTS and CTS
RTS
CTS
Setting
TXD is only used for data transmission ; the
sending and receiving modes should be switched
over using the modem control register.
With above setting, RTS and CTS are connected in
this product.
Communication is available without wiring of RTS
and CTS.