Mitsubishi FX0N-16NT User manual
FX0N-16NT
SPECIAL FUNCTION BLOCK
USER’S GUIDE
JY992D48901A
ADVANCED AND EVER ADVANCING MITSUBISHI ELECTRIC
MELSEC-F
0N
This manual contains text, diagramsand explanations which will guidethe reader in the correct installation and operation
of the FX0N-16NT special function block and should be read and understood before attempting to install or use the unit.
Further information can be found in the FX PROGRAMMING MANUAL and FX0/FX0N SERIES HARDWARE MANUAL.
1INTRODUCTION
•The FX0N-16NT special function block connects the FX0N programmable controller to the
MELSECNET/MINI-S3 network as a local station, or as a remote I/O unit of an A2C CPU.
•Use the AJ71PT32-S3 or A1SJ71PT32-S3 master unit or A2C CPU as the master
station. Connect the local station to the master station using twisted pair cable.
A
CPU
PW
Local PCs
(e.g. FX0N)
MELSECNET/MINI-S3
Remote
I/O unit
A Series PC containing
master unit
Twisted pair cable
AJ35PT
OPB M1/P1
•8inputpointsand8outputpointscan
be transmitted on the network.
•Number of occupied stations:1 station
(Number of stations: 64 maximum)
•Number of occupied input/output
points: 8 input points and 8 output
points of the FX0N PC
•Maximum distance for station-to-station
transmission: 100 m
1.1 External dimensions
POWER-DC-RUN-ERR
mm(inches)
16NT
X 1X 10
SG
SGSDA
RDA SDB
RDB
24+
24+ 24G
24G
ECM
FG
SDBSDA
RDA SG
SG
RDB
24+
24+ 24G
24G
ECM
FG
0
1
2
3
4
5
6
7
8
9
0
2
1
3
4
5
6
7
8
9
43
90
87
4 9
80
43
Weight: Approx. 0.2kg (0.44lbs). Accessory: I/O number labels.
Mounting
hole
(2x4.5
(0.18) diam.)
35-mm width
DIN rail installation
groove
Distance
between
installation
holes
Extension
cable
M3 (0.12)
terminal screws 43(1.69)
43(1.69) 4(0.16)
80
(3.15) 90
(3.54)
87(3.43)
9
(0.35)
2TERMINAL LAYOUTS
Shielding To RDB terminal
of next station
To SG terminal
of next station
To FG terminal
of next station
From SDB terminal of
previous station
From SG terminal of
previous station
To 24V DC power terminals of next
station
24+ 24+
24G 24G
ECM FG
RDA SDA
RDB SDB
SG SG
+24V
0V
AC power supply
From SDA terminal of previous
station (Sending side)
Shielded twisted pair
cables
Shielding
Extension cable: connects
FX0N-16NT to FX0N base unit. FX0N
supplies 5V DC power.
Stabilized 24 V DC
power supply for
transmission power
A Series PC
To next
extension
block To RDA terminal of next
station (Receiving side)
1
22
3
4
2.1 Key to numbered items on Terminal Layout diagram
1. 24V DC transmission power for the network is supplied by the stabilized power supply.
2.TheshieldedtwistedpaircablesconnecttheFX0N-16NTto thenetwork.TheSDA/SDBterminals
ofthepreviousstationshouldbeconnectedtotheRDA/RDBterminalsofthisstation.TheSDA/SDB
terminals of this station should be connected to the RDA/RDB terminals of the next station.
Keep these transmission cables away from all power cables. Do not allow power cables and
transmission cables to share the same duct.
3. Use one-point grounding (Class 3 ground, 100 Ωor less) for the shielding of the twisted pair
cable on the sending or receiving sides.
4. See section 3.6 for use of the ECM (Emergency Clear Mode) terminal.
2.2 Use of crimp-style terminals
Use crimp-style terminals of the indicated dimensions.
Tightening torque: 5 to 8 kgf.cm. Tighten the terminals
carefully to avoid any malfunctions.
6.2 mm (0.24
inch) or less M3 (0.12 inch)
3INSTALLATION NOTES AND USAGE
3.1 General specifications
Item Specification
General specifications (excluding
withstand voltage) Same as those for the FX0N base unit
Withstand voltage 500 V AC for 1 minute (between grounding terminal and all the other
terminals)
3.2 Performance Specifications
Item Specification
Master station AJ71PT32-S3, A1SJ71PT32-S3, A2C CPU
Cable Shielded twisted pair cable: For detailed specifications, refer to following
table.(Cross sectional area should be 0.2 to 0.5 mm2or more depending on
the station-to-station distance)
Maximum station-to-station distance 50 m for 0.2 to 0.5 mm2, 100 m for 0.5 mm2or more
Connection to FX0N PC Same as I/O extension blocks. Up to 2 unpowered blocks (including the FX0N-16NT)can
be connected to each powered base or extension unit. Max. I/O of system: 128 points.
Occupied station 1 station. MELSECNET/MINI-S3 can support up to 64 stations.
Input points 8 points: Allocated to FX0N extension I/O numbers, Xn0 to Xn7.
8 points occupied during communication (A to FX0N)
Output points 8 points: Allocated to extension I/O numbers of FX0N, Ym0 to Ym7.
8 points occupied during communication (FX0N to A)
LED indicators POWER, DC, and RUN indicators are on during normal operation.
POWER On when 5V DC power is supplied from the FX0N
PC (internal power supply).
DC On when 24V DC power is supplied from the
transmission power supply (external power supply)
RUN On during normal communication.
ERR On when a communication error is detected.
ECM setting (set by
terminal connections) Controls the behavior of the FX0N-16NT if a communications error occurs. The error
causes the master station to stop I/O refresh and a communications stoppage occurs.
The last data received by the FX0N-16NT will either be kept or lost.
3.3 Power supply specifications
Item Specification
Transmission power supply 24V DC +30% -35%, 60 mA (from the stabilized power
supply)
Interface power supply 5V DC (internal power supply from FX0N)
24 and 5V DC are insulated inside the FX0N-16NT
3.4 Recommended specification of twisted pair cable
Item Specification
Cable type Shielded twisted pair cable
Number of pairs 2 pairs or more
Conductor resistance (20 deg. C) 88.0Ω/km or less
Capacitance (1 kHz) 60 nF/km or less
Characteristic impedance (100 kHz) 110+/-10Ω
3.5 Setting the station number
Remove the cover on top of the unit, and set the station number (#01 to #64) using the rotary
switches. The FX0N-16NT can occupy only one station. The same station number is used for input
and output.
0
2
1
3
4
5
6
7
8
9
Enlarged view of station number selector switch
16NT
X 1X 10
SDBSDA
RDA SG
SG
RDB
24+
24+ 24G
24G
ECM
FG
0
1
2
3
4
5
6
7
8
9
0
2
1
3
4
5
6
7
8
9
First station number digit
setting switch("x10")
Second station number digit
setting switch("x1")
ECM
connection
Connector for next
extension block
Location of station number setting switches.
3.6 ECM setting
ECM (Emergency Clear Mode) setting:
When the MELSECNET/MINI-S3 master station stops signal communication (I/O refresh) and is in
STOP mode, the ECM terminal configuration can be selected. Set it as shown below.
ECM terminal connection Effect
Unconnected The data received just before a communication
stoppage is retained.
Connected to 24G terminal The data is not retained. All the FX0N-16NT input points
will reset.
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