Mitsubishi QJ71PB92V-U-HW User manual

User’s Manual
(Hardware)
QJ71PB92V
Thank you for purchasing the Mitsubishi programmable controller
MELSEC-Q series.
© 2005 MITSUBISHI ELECTRIC CORPORATION
PROFIBUS-DP
Master Module
Prior to use, please read this and relevant manuals thorougly to fully
understand the product.
MODEL QJ71PB92V-U-HW
MODEL
CODE 13JP82
IB(NA)-0800324-D(0808)MEE

A-1
zSAFETY PRECAUTIONSz
(Always read these instructions before using this equipment.)
Before using this product, please read this manual and the relevant manuals
introduced in this manual carefully and pay full attention to safety to handle the
product correctly.
The instructions given in this manual are concerned with this product. For the
safety instructions of the programmable controller system, please read the CPU
module user’s manual.
In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".
Note that the level may lead to a serious consequence
according to the circumstances.
Always follow the instructions of both levels because they are important to
personal safety.
Please save this manual to make it accessible when required and always forward
it to the end user.
Indicates that incorrect handling may cause
hazardous conditions, resulting in death or severe
injury.
Indicates that incorrect handling may cause
hazardous conditions, resulting in medium or slight
personal injury or physical damage.
DANGER
CAUTION
CAUTION

A-2
[Design Precautions]
zWhen a communication error occurs on PROFIBUS-DP, the status of the
faulty station is as shown below.
Create an interlock circuit in the sequence program using the communication
status information to ensure the system operates safely (Input X1, buffer
memory 5A20Hto 5B19H(23072 to 23321)).
An erroneous output or malfunction may cause accidents.
(1) The QJ71PB92V holds the input data before the communication failure.
(2) When the QJ71PB92V has gone down, the output status of each DP-Slave
is dependent on the QJ71PB92V parameter setting on GX Configurator-
DP.
(3) When a DP-Slave has gone down, the output status of the other DP-
Slaves is dependent on the QJ71PB92V parameter setting on GX
Configurator-DP.
zDo not output the "use prohibited" signal as the output signal to an intelligent
function module from the programmable controller CPU.
Writing data into the "system area"or outputting a signal for "use prohibited"
may cause system malfunction in the programmable controller.
zWhen a stop error has occurred to the CPU module, the communication
status varies depending on the error time output mode setting of GX
Developer as shown below.
Set the communication status for when a stop error has occurred to the CPU
module according to the system specifications.
Note that, if the QJ71PB92V is mounted to a redundant system, it operates as
described in (1) regardless of the setting.
(1) When "Error time output mode" is set to "Hold".
(a) Since the communication with the DP-Slave is continued, values at the
time of the CPU module stop error occurrence are held as the output
data sent to the DP-Slave from the QJ71PB92V.
(b) Input data received from DP-Slaves are updated into the buffer memory
of the QJ71PB92V.
(2) When "Error time output mode" is set to "Clear".
(a) Communications with DP-Slaves are interrupted, and output data are
not sent.
(b) Input data received from DP-Slaves are held in the buffer memory of
the QJ71PB92V.
DANGER

A-3
[Design Precautions]
[Installation Precautions]
zWhen the QJ71PB92V is mounted in a redundant system, set the watchdog
timer for DP-Slaves so that the calculation formula shown in PROFIBUS-DP
Master Module User's Manual. If the formula is not satisfied, a watchdog timer
error occurs in DP-Slaves during system switching.
zDo not bunch PROFIBUS cables with the main circuit or power wires, or install
them close to each other.
They should be installed 100 mm (3.94 inch) or more from each other.
Not doing so could result in noise that would cause erroneous operation.
zUse the programmable controller under the environment specified in the
user's manual of the CPU module to be used.
Using this programmable controller in an environment outside the range of the
general specifications could result in electric shock, fire, erroneous operation,
and damage to or deterioration of the product.
zWhile pressing the installation lever located at the bottom of module, insert the
module fixing tab into the fixing hole in the base unit until it stops. Then,
securely mount the module with the fixing hole as a supporting point.
Incorrect loading of the module can cause a malfunction, failure or drop.
When using the programmable controller in the environment of much
vibration, tighten the module with a screw.
zTighten the screw in the specified torque range.
Undertightening can cause a drop, short circuit or malfunction.
Overtightening can cause a drop, short circuit or malfunction due to damage
to the screw or module.
zCompletely turn off the externally supplied power used in the system before
mounting or removing the module.
Not doing so could result in damage to the product.
DANGER
CAUTION
CAUTION

A-4
[Installation Precautions]
[Wiring Precautions]
zDo not directly touch the module's conductive parts or electronic components.
Touching the conductive parts could cause an operation failure or give
damage to the module.
zBe sure to shut off all phases of the external power supply used by the system
before wiring PROFIBUS cables.
Failure to do so may result in failure or malfunctions of the module.
zBe sure there are no foreign substances such as sawdust or wiring debris
inside the module.
Such debris could cause fires, damage, or erroneous operation.
zBe sure to place the PROFIBUS cables in a duct or clamp them.
If not, dangling cables may be shifted or inadvertently pulled, resulting in
damages to the module or cables or malfunctions due to poor cable contact.
zWhen disconnecting the PROFIBUS cable, do not pull it by holding the cable
part.
Be sure to hold its connector which is plugged into the module.
Pulling the cable with it connected to the module may damage the module
and/or cable, or cause malfunctions due to poor contact of the cable.
zThe module has an ingress prevention label on its top to prevent foreign
matter, such as wire offcuts, from entering the module during wiring.
Do not peel this label during wiring.
Before starting system operation, be sure to peel this label because of heat
dissipation.
CAUTION
DANGER
CAUTION

A-5
[Startup and Maintenance Precautions]
[Disposal Precautions]
zBefore cleaning, be sure to shut off all phases of the external power supply
used by the system.
Failure to do so may cause electrical shocks.
zDo not disassemble or modify the module.
Doing so could cause trouble, erroneous operation, injury, or fire.
zUse any radio communication device such as a cellular phone or a PHS
phone more than 25cm (9.85 inch) away in all directions of the programmable
controller.
Not doing so can cause a malfunction.
zCompletely turn off the externally supplied power used in the system before
mounting or removing the module.
Not doing so could result in damage to the product.
zDo not mount/remove the module to/from the base unit or terminal block more
than 50 times (IEC 61131-2 compliant), after the first use of the product.
Failure to do so may cause module malfunctions.
zBefore touching the module, always touch grounded metal, etc. to discharge
static electricity from human body, etc.
Not doing so can cause the module to fail or malfunction.
zWhen disposing of this product, treat it as an industrial waste.
DANGER
CAUTION
CAUTION

A-6
Revisions
* The manual number is given on the bottom right of the cover.
© 2005 MITSUBISHI ELECTRIC CORPORATION
Print Date *Manual Number Revision
Aug., 2005 IB(NA)-0800324-A First edition
Jun., 2006 IB(NA)-0800324-B
SAFETY PRECAUTIONS, Chapter 2,4
Chapter 6
May, 2007 IB(NA)-0800324-C
SAFETY PRECAUTIONS, Manuals,
Section 3.1, Chapter 4, 6
Aug., 2008 IB(NA)-0800324-D
Compliance with the EMC and Low
Voltage Directives, Section 3.1
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.
Modifications
Additions
Additions
Additions

A-7
CONTENTS
1. Overview ........................................................................................................ 1
2. Specification .................................................................................................. 2
3. Implementation and Installation ..................................................................... 4
3.1 Handling precautions ............................................................................... 4
3.2 Installation environment .......................................................................... 5
4. Part Names and Settings ............................................................................... 6
5. Wiring ............................................................................................................. 9
5.1 PROFIBUS cable wiring .......................................................................... 9
5.2 Wiring precautions ................................................................................. 12
6. Setting from GX Developer .......................................................................... 13
7. External Dimensions .................................................................................... 14

A-8
About Manuals
The following manuals are related to this product.
Please purchase them if necessary.
*1 Refer to it when using the QJ71PB92D-compatible function.
Compliance with the EMC and Low Voltage Directives
(1) For programmable controller system
To configure a system 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 printed on the rating plate of the programmable controller.
(2) For the product
No additional measures are necessary for the compliance of this product
with the EMC and Low Voltage Directives.
Related Manuals
Manual name Manual number.
(Model code)
PROFIBUS-DP Master Module User's Manual
Explains the overview, system configuration, specifications,
functions, procedures before system operation, programming and
dedicated instructions of QJ71PB92V.
SH-080572ENG
(13JR84)
PROFIBUS-DP Interface Module User’s Manual *1
Explains the overview of the QJ71PB92D-compatible function,
system configurations, specifications, functions, procedures before
system operation, programming, and dedicated instructions.
SH-080127
(13JR22)

1
1. Overview
This manual is provided for handling the QJ71PB92V PROFIBUS-DP master
module (hereinafter referred to as "QJ71PB92V").
First, open the package of the QJ71PB92V and check that the following is
included.
Table 1.1 Packing List
Model Product name Quantity
QJ71PB92V QJ71PB92V PROFIBUS-DP master module 1

2
2. Specification
The performance specifications of the QJ71PB92V are given below.
When using the QJ71PB92D-compatible function, refer to the PROFIBUS-
DP Interface Module User's Manual.
For the general specifications of the QJ71PB92V, refer to the QCPU User's
Manual (Hardware Design, Maintenance and Inspection).
*1 The transmission speed is controlled within 0.2%. (Compliant with IEC
61158-2)
*2 Up to 124 when the QJ71PB92V is mounted to redundant system.
Table 2.1 Performance specifications
Item Specifications
PROFIBUS-DP station type DP-Master (Class 1)
Trasmission
specifications
Electrical standard/
characteristics EIA-RS485 compliant
Medium Shielded twisted pair cable (Refer to Section 5.1.)
Network topology Bus topology (Tree topology when repeaters are used)
Data link method
Between DP-Master and DP-Master: Token passing
method
Between DP-Master and DP-Slave: Polling method
Encoding method NRZ
Transmission speed *1 9.6 kbps to 12Mbps (Refer to (1) in this chapter.)
Transmission distance Differs depending on the transmission speed (Refer to
(1) in this chapter.)
Max. No. of repeaters 3 repeaters
Number of connectable
modules
(Per segment)
32 per segment (including repeater(s))
Number of connectable
modules (Per network)
126 per network
(total of DP-Masters and DP-Slaves)
Max. No. of DP-Slaves
*2 (Per QJ71PB92V) 125 per QJ71PB92V
Trasmission
specifications
I/O data
size
Input data Max. 8192 bytes (Max. 244 bytes per DP-Slave)
Output data Max. 8192 bytes (Max. 244 bytes per DP-Slave)
Number of writes to flash ROM Max. 100000 times
No. of occupied I/O points 32 (I/O assignment: 32 special points)
Internal current consumption (5V DC) 0.57A
External dimensions 98(3.86 in.)(H) 27.4(1.08 in.)(W) 90(3.54 in.)(D) [mm]
Weight 0.13kg

3
(1) Transmission distance
*1 The max. transmission distance in the table above is based on the case where
3 repeaters are used.
The calculation formula for the transmission distance extended using a
repeater(s) is:
Table 2.2 Transmission distance
Transmission speed Transmission distance Max. Transmission distance when
repeater is used *1
9.6kbps
1200m(3937ft.)/segment 4800m(15748ft.)/network19.2kbps
93.75kbps
187.5kbps 1000m(3281ft.)/segment 4000m(13123ft.)/network
500kbps 400m(1312ft.)/segment 1600m(5249ft.)/network
1.5Mbps 200m(656ft.)/segment 800m(2625ft.)/network
3Mbps
100m(328ft.)/segment 400m(1312ft.)/network6Mbps
12Mbps
Max. transmission distance [m/network] = (No. of repeaters +1) Transmission distance [m/segment]

4
3. Implementation and Installation
This section provides the handling precautions, from unpacking to installation
of the QJ71PB92V.
For details on implementation and installation of the QJ71PB92V, refer to the
"QCPU User's Manual (Hardware Design, Maintenance and Inspection)."
3.1 Handling precautions
The following are precautions for handling the QJ71PB92V as a unit.
(1) Do not drop the module case or subject it to heavy impact since it is
made of resin.
(2) Do not remove the printed-circuit board of each from its case.
This may cause a failure in the module.
(3) Be careful not to let foreign objects such as wire burrs enter the
module during wiring.
In the even any foreign object enters, remove it immediately.
(4) The module has an ingress prevention label on its top to prevent
foreign matter, such as wire offcuts, from entering the module during
wiring.
Do not peel this label during wiring.
Before starting system operation, be sure to peel this label because
of heat dissipation.
(5) Before touching the module, always touch grounded metal, etc. to
discharge static electricity from human body, etc.
Not doing so can cause the module to fail or malfunction.
(6) Tighten the screws such as module fixing screws within the following
ranges.
*1 The module can be easily fixed onto the base unit using the hook at the top of
the module.
However, it is recommended to secure the module with the module fixing
screw if the module is subject to significant vibration.
Table 3.1 Screw tightening torque
Screw location Tightening torque range
Module fixing screw (M3 screw) *1 0.36 to 0.48N•m
PROFIBUS cable connector screw (#4-40 UNC
screws) 0.20 to 0.28N•m

5
3.2 Installation environment
Refer to the QCPU User's Manual (Hardware Design, Maintenance and
Inspection).

6
4. Part Names and Settings
This section explains the names and settings of each part of the QJ71PB92V.
*1 Use a D-Sub 9-pin male connector.
The PROFIBUS cable is to be fabricated by users. (For details on cable wiring,
refer to Section 5.1.)
The applicable screw size is #4-40 UNC.
Figure 4.1 QJ71PB92V appearance
Table 4.1 Names of part
No. Name Description
1) Indicator LEDs
These LEDs indicate the operation
status of the QJ71PB92V.
For details, refer to (1) in this chapter.
2) PROFIBUS interface connector
This connector connects the
PROFIBUS cable to the
QJ71PB92V.*1
1)
2)

7
(1) Indicator LEDs
(To the next page)
Figure 4.2 Indicator LEDs
Table 4.2 Indicator LEDs
LED Status Description
RUN
ON Normally operating
OFF Hardware error (watchdog timer error) or power failure
SD/RD
ON Exchanging I/O data*1 or during acyclic
communications *2
Flashing
OFF Not communicating with DP-Slave, or being in the
standby system
READY
ON Ready to communicate or communication being
performed
OFF Not ready to communicate or no communication
RSP ERR.
ON A communication error has occurred.
OFF No communication error
TEST
ON Executing self-diagnostics or flash ROM initialization
Flashing Executing self-diagnostics
OFF Not executing self-diagnostics or flash ROM
initialization
TOKEN
ON
Token being passed*3
Flashing
OFF No token passing, or being in the standby system*3
PRM SET
ON Operating in parameter setting mode (mode 1)
Flashing The written parameters are invalid
OFF Operating in operation mode other than parameter
setting mode (mode 1)
FAULT
ON An error has occurred
OFF Normally operating

8
*1 The LED flashes at intervals based on the value set in "Data control time" in
Master Parameters.
*2 The LED flashes at the time of request or response in acyclic communication.
*3 The LED status during token passing varies depending on the number of DP-
Masters within the same network and the transmission speed setting, as shown
the Table 4.3.
Table 4.3 TOKEN LED status
No. of DP-Masters within the
same network
Transmission speed
19.2kbps or less 93.75kbps or more
1ON
More than 1 Flashing ON or OFF

9
5. Wiring
5.1 PROFIBUS cable wiring
The following describes the pin assignments of the PROFIBUS interface
connector on the QJ71PB92V, the PROFIBUS cable wiring
specifications, bus terminator and other information.
(1) Pin assignments of the PROFIBUS interface connector
The following shows the pin assignments of the PROFIBUS interface
connector (D-sub 9-pin female connector).
*1 Optional signal
*2 Signal used to connect the bus terminator
Figure 5.1 PROFIBUS interface connector
Table 5.1 Pin assignments of the PROFIBUS interface connector
Pin
No.
Signal
code Name Description Cable color
1 SHIELD *1 Shield, protective ground
2Open
3 B/B' RxD/TxD-P Receive/send data-P Red
4Open
5 C/C’ DGND *2 Data Ground
6 VP *2 Voltage +
7Open
8 A/A’ RxD/TxD-N Receive/send data-N Green
9Open
1
2
3
4
5
6
7
8
9

10
(2) PROFIBUS cable
The following shows the PROFIBUS cable and wiring specifications.
(a) PROFIBUS cable
Use a PROFIBUS cable that meets the following specifications
(Type A (IEC 61158-2) compliant).
(b) Wiring specifications
(3) Connector
Use a D-sub 9-pin male connector for the PROFIBUS cable.
The applicable screw size is #4-40 UNC.
Table 5.2 PROFIBUS cable specifications
Item Transmission line
Applicable cable Shielded twisted pair cable
Impedance 135 to 165 (f = 3 to 20MHz)
Capacity Less than 30pF/m
Conductor resistance Less than 110 /km
Cross-sectional area 0.34mm2or more (22AWG)
Figure 5.2 PROFIBUS cable wiring specifications
PROFIBUS cable
SHIELD
RxD/TxD-P (red)
RxD/TxD-N (green)
1
3
8
QJ71PB92V

11
(4) Wiring specifications for bus terminator
When the QJ71PB92V is a terminal station, use a connector with
built-in bus terminator that meets the following wiring specifications.
(5) PROFIBUS equipment
The PROFIBUS cables, connectors and other PROFIBUS
equipment must be purchased or obtained at user's discretion.
For details on PROFIBUS equipment, access the following website.
PROFIBUS International :http://www.profibus.com/
Figure 5.3 Wiring specifications for bus terminator
VP (6)
RxD/TxD-N (8)
DGND (5)
RxD/TxD-P (3)
R 390 2 , min1/4W
220 2 , min1/4W
390 2 , min1/4W
u
RtA
Rd