Chapter 1 Introducing the MD911 Module
1.2
Names and Functions of the Parts
1.2.1 Names of the parts
Figure 1-2 shows the names of the parts of the MD911 module.
Maintenance switch
4
6F8C1399
MD911
RUN ERR
I/O
TX
RX
MOD
I/O
STN-H
STN-L
MODE
TOOL
MODBUS
MAINT
RS-232C
↓RUN
2W/4W
1
D1/TXD1
2
D0/TXD0
3
- /RXD1
4
- /RXD0
5
GND
MODBUS
RS-485
Figure 1-2 Names of the parts of the MD911 module
State display LED
・RUN
・ERR
・I/O
・TX
・RX
・MOD
TC-net I/O bus address setting switch
・I/O
MODBUS station address setting switch
・STN-H
・STN-L
Mode setting switch
・MODE
Serial communication port
・TOOL
MODBUS RS-232C I/F connector
MODBUS RS-485 I/F terminal block