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2 Specifications and Application Procedures
NX-series Communications Interface Units User’s Manual (W540)
2-1 Specifications
2
2-1-2 Specifications of Individual Units
The following table gives the specifications of individual CIF Units.
2-1-2 Specifications of Individual Units
Item NX-CIF101 NX-CIF105 NX-CIF210
Number of ports 1 1 2
Serial interface RS-232C RS-422A/485 RS-232C
Communications protocol No-protocol
Communi-
cations
specifica-
tions
Communications method Full duplex Half duplex for
two-wire conn
ection,
Full duplex for
four-wire connection
Full duplex
Signal lines --- Two lines or four
lin
es
*1
---
Baud rate [bps]
*1
1,200, 2,400, 4,800, 9,600, 19,200, 38,400, 57,600, 115,200, or
230,400
Data length [bits]
*1
7 or 8
Parity
*1
Even, odd, or none
Start bits [bits] Always 1.
Stop bits [bits]
*1
1 or 2
Flow control
*1
None, RS/CS flow control,
*2
or Xon/Xoff control
Flow control target
*1
Send/receive, send only, or receive only
Initial RS signal value
*1*3
ON or OFF
Number of characters to
dete
rmine the end
*1*4
0 to 10,000 (in increments of 0.1 character))
0: The end is not detected.
Maximum communications
distance [m]
15
*5
1,200
*6
15
*5
Connection configuration 1:1 1:N
Maximum value of N
is 32.
You can change
betwee
n
two-wire
and four-wire con-
nections.
1:1
I/O refreshing method Free-Run refreshing only
Divided data size [bytes]
*1*7
Inputs or outputs: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56,
60, 64, 68, 72, 76, or 80
Transmission buffering enable/disable set-
ting
*1
Enabled or disabled
Functions to back up data
Provided.
*8
Terminating resistance setting --- Possible --
Isolation method No isolation Power supply: trans-
former and photo-
coupler
Signals: Digital isola-
tors
No isolation
I/O power supply method No I/O power supply
NX Unit
power co
n-
sumption
Connected to CPU Unit 1.10 W max. 1.65 W max. 1.15 W max.
Connected to Communica-
tions Coupler Unit
0.90 W max. 1.45 W max. 0.95 W max.
Current capacity of I/O power supply ter-
minal
No I/O power supply
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