User`s manual

App. 2-5
Appendix 2-3 Names and Functions
- Controller Unit
4:RUN
3:U-TERM
2:TERM
1:STOP
ONL
ERR
UROM
RUN
ALM
BAT
USB
LOADER
USER ROM CARD
SX-BUS
IN
OUT
No.
CPU
24V DC
+
-
FG
4) Data backup
battery
2) Key switch
3) CPU No. selection key switch
9) USB-miniB connector
8) Loader connector
7) Connector for user ROM
card (CF card)
6) Power supply
terminal block
(3 poles)
Version No.
1) Status indication
LED
Name plate
5) SX bus
connector
Seal of the occasion of next
battery replacement
RS232C
/RS485
LAN
11) General purpose
communication connector
10) Ethernet connector
12) RS-485 Terminating resistance
ON/OFF switch
10) Ethernet connector
This connector is used to connect communication cable of 10BASE-T or 100BASE-TX .
11) General purpose communication connector

Pin No.
Pin No. Function Signal direction Description
1
N.C. No connection
2 SG(0V) Signal ground (common return)
3 RS-485 TXD+ OUT This unit to External devi ce RS-485 send data signal line (+)
4 RS-485 TXD- OUT This unit to Ex ternal device RS -485 sen d data signal line (-)
5 RS-485 RXD+ IN External device to This un it RS-485 receive data signal line (+
)
6 RS-485 RXD- IN Ex ternal device to Thi s un it RS-485 receive data signal line (-)
7 RS-232C RD IN External dev ice to This un it RS -232C receiv e data
8 RS-232C SD OUT This unit to External device RS-232C sen d data