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 1. OVERVIEW 

 

 
This manual explains how to handle the MELSECNET/H network module, model 
number QJ71NT11B (hereinafter referred to as the network module). 
The network module is used as a control/normal station in the PLC to PLC 
network in the MELSECNET/H system. 
After unpacking the network module, confirm that the following products are 
enclosed. 
 

Model name 

Part name 

Quantity

Model QJ71NT11B MELSECNET/H Network Module  
(twisted bus type) 

QJ71NT11B 

Terminal resistor 110 , 1/2W(brown, brown, brown) 

 

Summary of Contents for QJ71NT11B

Page 1: ...chasing the Mitsubishi programmable controller MELSEC Q Series Prior to use please read both this manual and detailed manual thoroughly and familiarize yourself with the product MODEL QJ71NT11B U HW MODEL CODE 13JY93 IB NA 0800440 B 0903 MEE 2008 MITSUBISHI ELECTRIC CORPORATION ...

Page 2: ...ystem please read the CPU module user s manual In this manual the safety precautions are classified into to levels DANGER and CAUTION Indicates that incorrect handling may cause hazardous conditions resulting in death or severe injury Indicates that incorrect handling may cause hazardous conditions resulting in minor or moderate injury or property damage Under some circumstances failure to observe...

Page 3: ...he module When using the programmable controller in an environment of frequent vibrations fix the module a screw Tighten the screw within the specified torque range Undertightening can cause drop of the screw short circuit or malfunction Overtightening can damage the screw and or module resulting in drop short circuit or malfunction z Shut off the external power supply for the system in all phases...

Page 4: ...ion z Correctly solder coaxial cable connectors Incomplete soldering may result in malfunction z Prevent foreign matter such as dust or wire chips from entering the module Such foreign matter can cause a fire failure or malfunction z A protective film is attached to the top of the module to prevent foreign matter such as wire chips from entering the module during wiring Do not remove this film dur...

Page 5: ...Correction SAFETY PRECAUTIONS Capter 4 5 6 This manual confers no industrial property rights or any rights of any other kind nor does it confer any patent licenses Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property rights which may occur as a result of using the contents noted in this manual 2008 MITSUBISHI ELECTRIC CORPORATION ...

Page 6: ...s of twisted pair cable 8 5 1 2 Precautions for wiring twisted pair cable 9 5 2 Twisted Bus System When using CC Link Ver 1 10 compatible Cable 10 5 2 1 Specifications of CC Link Ver 1 10 compatible cable 10 5 2 2 Precautions for wiring CC Link Ver 1 10 compatible cable 11 5 3 Connecting Twisted Pair Cable and Solderless Terminal for CC Link Ver 1 10 compatible Cable 12 6 EXTERNAL DIMENSIONS 14 ...

Page 7: ...m meeting the requirements of the EMC and Low Voltage Directives when incorporating the Mitsubishi programmable controller EMC and Low Voltage Directives compliant into other machinery or equipment refer to Chapter 9 EMC AND LOW VOLTAGE DIRECTIVES of the QCPU User s Manual Hardware Design Maintenance and Inspection The CE mark indicating compliance with the EMC and Low Voltage Directives is printe...

Page 8: ...dule The network module is used as a control normal station in the PLC to PLC network in the MELSECNET H system After unpacking the network module confirm that the following products are enclosed Model name Part name Quantity Model QJ71NT11B MELSECNET H Network Module twisted bus type 1 QJ71NT11B Terminal resistor 110 1 2W brown brown brown 1 ...

Page 9: ...rmal stations Communication speed Twisted pair cable CC Link Ver 1 10 compatible cable 156kbps 3 1200m 1200m 312kbps 600m 900m 625kbps 400m 600m 1 25Mbps 200m 400m 2 5Mbps 200m 5Mbps 150m 10Mbps Not applicable 100m Overall distance for one network Connection cable Twisted pair cable or CC Link Ver 1 10 compatible cable 4 Number of occupied I O points 32 points intelligent function module 32 points...

Page 10: ...t snaps into place Incorrect mounting may cause malfunction failure or drop of the module When using the programmable controller in an environment of frequent vibrations fix the module a screw Tighten the screw within the specified torque range Undertightening can cause drop of the screw short circuit or malfunction Overtightening can damage the screw and or module resulting in drop short circuit ...

Page 11: ...ilm during wiring Be sure to remove it for heat dissipation before system operation 5 Before handling the module touch a grounded metal object to discharge the static electricity from the human body Failure to do so may cause the module to fail or malfunction 6 Tighten the screws such as module fixing screws within the following ranges Screw location Tightening torque range Module fixing screw M3 ...

Page 12: ... being joined in a network Green flash Test is determined to have completed normally when this LED flashes 20 times or more approximately 10 seconds during the test Off Baton pass not yet executed the host is disconnected from the network D LINK Green on Data link being executed cyclic transmission is being executed Off Data link not yet executed parameter receiving not completed host CPU error da...

Page 13: ... following communication errors has occurred CRC Error generated by an cable failure noise etc OVER This error occurs when the next data is received before the last receive data is loaded into the module and the data is overwritten It is caused by a hardware error in the receive area of the network module AB IF This error occurs when more than the specified number of bits are set to 1 among the re...

Page 14: ... 32 online 3 3 to 9 y 0 to 9 TEST 0 to 6 Setting error The ERR LED turns on 1 TEST 7 Self loopback test TEST 8 Internal self loopback test 10 10s unit 1 1s unit TEST 9 Hardware test 1 The ERR LED does not turn on in red if the station number is set equivalent to 33 to 64 3 Spring clamp terminal block Used to connect a twisted pair cable or CC Link Ver 1 10 compatible cable Refer to Section 5 1 2 2...

Page 15: ...Correctly solder coaxial cable connectors Incomplete soldering may result in malfunction z Prevent foreign matter such as dust or wire chips from entering the module Such foreign matter can cause a fire failure or malfunction z A protective film is attached to the top of the module to prevent foreign matter such as wire chips from entering the module during wiring Do not remove this film during wi...

Page 16: ...y the following specifications can also be used even not introduced Item KNPEV SB 0 5SQ 1P 1 Cross section Cable Shielded twisted pair cable Core 2 core Conductor resistance 20 39 4 km or less Insulation resistance 20 10M km or more Dielectric withstand voltage V min 1000VAC 1 minute Capacitance 1kHz 70nF km or less on average Characteristic impedance 100kHz 110 10 1 Applicable only when the commu...

Page 17: ...I O signal cables 3 Do not use any of shielded twisted pair cables e g One pair among three pairs for supplying power b Connecting terminating resistors For the network modules at both ends connect the DA and DB by a terminating resister 110 1 2W provided with the module c Connecting disconnecting a shielded twisted pair cable Shut off the external power supply for the system in all phases 2 Conne...

Page 18: ...by a slotted screwdriver When using a bar terminal the cable can be inserted without pressing the button Insertion hole Open close button 2 Disconnecting the cable Keep pressing the open close button by a slotted screwdriver until the cable is completely pulled out 5 2 Twisted Bus System When using CC Link Ver 1 10 compatible Cable 5 2 1 Specifications of CC Link Ver 1 10 compatible cable The foll...

Page 19: ...ule via FG The SLD and FG are connected within the module d Connecting a terminating resistor For the network module at both ends connect the DA and DB by a terminating resister 110 1 2W provided with the module e Connecting disconnecting CC Link Ver 1 10 compatible cable Shut off the external power supply for the system in all phases 2 Connection of cable a Connection method Connect a blue white ...

Page 20: ...ntative Solderless terminal TE0 5 10 0 3 to 0 5mm2 Tool dedicated for solderless terminal NH 79 For inquiries and orders please contact your local NICHIFU TERMINAL MFG Co Ltd representative Solderless terminal AI0 5 10WH 0 5mm2 CRIMPFOX UD6 CRIMPFOX UD6 4 1 CRIMPFOX UD6 6 1 Tool dedicated for solderless terminal CRIMPFOX ZA3 For inquiries and orders please contact your local Phoenix Contact repres...

Page 21: ...ls of the bar terminal or crimping tool used In the example a crimping tool FA VTC125T9 manufactured by Mitsubishi Electric Corporation is used 1 Strip the cable jacket by 5 5mm to 6 5mm 2 Place the terminal in the correct place in the end of the locater 3 Insert the terminal until it reaches to the locater 4 Insert the stripped cable into the terminal and crimp it ...

Page 22: ...15 6 EXTERNAL DIMENSIONS QJ71NT11B 27 4 1 08 90 3 54 98 3 86 17 5 0 69 23 0 91 4 0 16 Unit mm in ...

Page 23: ...16 MEMO ...

Page 24: ...ant Cugat del Valles Barcelona Spain Tel 34 93 565 3131 France Mitsubishi Electric Europe B V French Branch 25 Boulevard des Bouvets F 92741 Nanterre Cedex France TEL 33 1 5568 5568 South Africa Circuit Breaker Industries Ltd Private Bag 2016 ZA 1600 Isando South Africa Tel 27 11 928 2000 Hong Kong Mitsubishi Electric Automation Hong Kong Ltd 10th Floor Manulife Tower 169 Electric Road North Point...

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