Mitsubishi AJ65BT-64RD3 User manual

Pt 100 Temperature Input Module Type AJ65BT-64RD3/AJ65BT-64RD4
User,s Manual
Mitsubishi Programmable Controller
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SAFETY PRECAUTIONS
(Read these precautions before using.)
When using Mitsubishi equipment, thoroughly read this manual and the associated manuals introduced
in this manual. Also pay careful attention to safety and handle the module properly.
These precautions apply only to Mitsubishi equipment. Refer to the user's manual of the used CPU
module for a description of the PLC system safety precautions.
These SAFETY PRECAUTIONS classify the safety precautions into two categories: "DANGER"
and "CAUTION".
DANGER
Procedures which may lead to a dangerous condition and cause death or
serious injury if not carried out properly.
CAUTION
Procedures which may lead to a dangerous condition and cause superficial
to medium injury, or physical damage only, if not carried out properly.
Depending on circumstances, procedures indicated by CAUTION may also be linked to serious
results.
In any case, it is important to follow the directions for usage.
Store this manual in a safe place so that you can take it out and read it whenever necessary. Always
forward it to the end user.
[DESIGN PRECAUTIONS]
DANGER
 When there are communication errors with the data link, the data of the master module will be held.
Built an interlock circuit into the sequence program that will make sure the system operate safely by using
the communication status information.
CAUTION
 Do not bunch the control wires or communication cables with the main circuit or power wires, or them close
to each other.
They should be installed 100 mm (3.9 in.) or more from each other.
Not doing so could result in noise that would cause malfunction.
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[INSTALLATION PRECAUTIONS]
CAUTION
 The module should be used under the environmental conditions listed under the general specifications in
the manual.
Using it under any other environmental conditions could cause problems such as fire, malfunction and
damage to or deterioration of the product.
 The module should be fixed securely with a DIN rail or installation screws, and then make sure to tighten it
within the range of the specified torque of the installation screws.
If the screws are loose, it may result in fallout or malfunction.
Tightening the screws too far may cause damages to the screws and/or the module, resulting in fallout or
malfunction.
 Do not directly touch the module's conductive parts.
Doing so could cause malfunction or trouble in the module.
[WIRING PRECAUTIONS]
CAUTION
 Be sure to shut off all phases of the external power supply used by the system before installation or wiring.
Not doing so can cause the product to be damaged or malfunction.
 When turning on the power or operating the module after installation or wiring work, be sure the module’s
terminal covers are correctly attached.
Failure to attach the terminal covers may result in short circuit or failure.
 The FG terminals should always be grounded using the class-D (class-3) or higher grounding designed
specially for the PLC.
Failure to ground these terminals may cause malfunction.
 Use applicable solderless terminals and tighten them with the specified torque.If any solderless spade
terminal is used, it may be disconnected when the terminal screw comes loose, resulting in failure.
 When wiring the module, check the rated voltage and terminal layout of the wiring, and make sure the wiring
is done correctly.
Connecting a power supply that differs from the rated voltage or wiring it incorrectly may cause fire or
failure.
 Tighten the terminal screws within the range of specified torque.
If the terminal screws are loose, it may result in short circuit or malfunction.
Tightening the terminal screws too far may cause damage to the screws and/or the module, resulting in
short circuit or malfunction.
 Be sure there are no foreign substances such as sawdust or wiring debris inside the module.
Such debris could cause fire, failure or malfunction.
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[WIRING PRECAUTIONS]
CAUTION
 Be sure that the wires or cables connected to the module are stored in the duct or fixed with cramps.
Failure to do so may cause a damage to the module or cables due to dangling, shifting or inadvertent
handling of calbes, or malfunction due to bad cable contacts.
 Do not install the control lines together with the communication cables, or bring them close to each other.
Failure to do so may cause malfunctions due to noise.
 Do not grab on the cable when removing the communication cable or power cable connected to the module.
When removing the cable, loose the screws on the side that is connected to the module.
Pulling the cable that is still connected to the module may cause a damage to the module or cable, or
malfunction due to bad contacts.
[STARTING AND MAINTENANCE PRECAUTIONS]
CAUTION
 Do not touch the terminals while the power is on.
Doing so may cause malfunction.
 Be sure to shut off all phases of the external power supply used by the system before cleaning or
retightening the terminal screws.
Not doing so can cause the module to fail or malfunction.
Undertightening can cause a drop, short circuit or malfunction.
Overtightening can cause a drop, short circuit or malfunction due to damage of the screws or module.
 Do not disassemble or modify the module.
Doing so could cause failure, malfunction, injury or fire.
 Do not drop or give a strong shock to the module because its case is made of resin.
Doing so may cause a damage to the module.
 Be sure to shut off all phases of the external power supply used by the system before mounting or
dismounting the module to or from the panel.
Not doing so can cause the module to fail or malfunction.
 Do not remove or change the platinum temperature-measuring resistor designation pin while energizing the
module.
If a platinum temperature-measuring resistor designation pin is removed or changed while energizing, it may
cause failure or malfunction.
 Mounting/removing the terminal block is limited to 50 times after using a product. (IEC61131-2-compliant)
 Always make sure to touch the grounded metal to discharge the electricity charged in the body, etc., before
touching the module.
Failure to do so may cause a failure or malfunctions of the module.
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[DISPOSAL PRECAUTION]
CAUTION
 When disposing of this product, treat it as industrial waste.
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Revisions
* The manual number is noted at the lower left of the back cover.
Print Date *Manual Number Revision
May., 1998 SH(NA)-4001-A First printing
Oct., 2004 SH(NA)-4001-B Partial correction
SAFETY PRECAUTIONS,
Chapter 1, Section 2.1, 2.2, 3.1, 3.2, 3.2.2, 3.3.1, 3.3.4, 3.4.1, 3.4.2, 3.5.1,
Section 4.1, 4.2, 4.3, 4.5, 4.7.1, 4.7.2, Chapter 5, Section 5.1, 5.2, 6.1,
Addition
Conformation to the EMC Directive and Low Voltage Instruction, About
Manual, About the Generic Terms and Abbreviations, Product Structure,
Section 5.3, 5.4, 5.5, 5.6, WARRANTY
Deletion
Chapter 3, Section 5.2.1,
Jul., 2005 SH(NA)-4001-C Partial correction
SAFETY PRECAUTIONS
Dec., 2006 SH(NA)-4001-D Partial correction
SAFETY PRECAUTIONS, Section 2.1, 3.2, 3.6.1, 3.7.4, 4.1
Japanese Manual Version SH-3652-F
This manual does not imply guarantee or implementation right for industrial ownership or implementation
of other rights. Mitsubishi Electric Corporation is not responsible for industrial ownership problems caused
by use of the contents of this manual.
©1998 Mitsubishi Electric Corporation
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Introduction
Thank you for purchasing the Mitsubishi Graphic Operation Terminal.
Before using the equipment, please read this manual carefully to develop full familiarity with the functions and
performance of the graphic operation terminal you have purchased, so as to ensure correct use.
Please forward a copy of this manual to the end user.
Table of Contents
1. OVERVIEW 1-1 to 1-1
1.1 Features............................................................................................................................................................ 1- 1
2. SYSTEM CONFIGURATION 2-1 to 2-2
2.1 Overall Configuration ........................................................................................................................................ 2- 1
2.2 Applicable Systems........................................................................................................................................... 2- 2
3. SPECIFICATIONS 3-1 to 3-15
3.1 General Specification........................................................................................................................................ 3- 1
3.2 Performance Specification................................................................................................................................3- 2
3.2.1 Specifications when connecting to a platinum temperature-measuring resistor.................................... 3- 3
3.2.2 Data link processing time....................................................................................................................... 3- 4
3.3 Function ............................................................................................................................................................3- 5
3.3.1 Function list............................................................................................................................................3- 5
3.3.2 Conversion enable/disable designation.................................................................................................3- 6
3.3.3 Sampling processing/travel average processing designation................................................................ 3- 7
3.3.4 Wire breakage detection........................................................................................................................3- 9
3.3.5 Detected temperature ............................................................................................................................ 3-10
3.3.6 Designating the platinum temperature-measuring resistor type ............................................................ 3-10
3.4 I/O Signals in Respect to the Master Module.................................................................................................... 3-11
3.4.1 Remote I/O signal list............................................................................................................................. 3-11
3.4.2 I/O signal functions ................................................................................................................................ 3-12
3.5 Remote Register ............................................................................................................................................... 3-14
3.5.1 Remote register assignment.................................................................................................................. 3-14
3.5.2 Remote register for storing detected temperature (Address: RWrn to RWrn+11)................................. 3-15
4. SETTING AND PROCEDURE BEFORE OPERATION 4-1 to 4-12
4.1 Procedure before Operation ............................................................................................................................. 4- 1
4.2 Handling Precautions........................................................................................................................................ 4- 2
4.3 Part Identification and Setting...........................................................................................................................4- 3
4.4 Error Compensation by the Offset Value/Gain Value Setting ........................................................................... 4- 5
4.4.1 Initial settings for error compensation.................................................................................................... 4- 7
4.4.2 Error compensation procedure ..............................................................................................................4- 8
4.5 Station Number Setting.....................................................................................................................................4- 9
4.6 Orientation of Module Installation ..................................................................................................................... 4- 9
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4.7 Wiring................................................................................................................................................................ 4-10
4.7.1 Handling precautions for CC-Link dedicated cable................................................................................ 4-10
4.7.2 Wiring example with CC-Link modules .................................................................................................. 4-10
4.7.3 Precautions when wiring to a platinum temperature-measuring resistor ............................................... 4-11
4.7.4 Connecting AJ65BT-64RD3 and platinum temperature-measuring resistor.......................................... 4-11
4.7.5 Connecting AJ65BT-64RD and platinum temperature-measuring resistor............................................ 4-12
5. PROGRAMMING 5-1 to 5-15
5.1 Programming Procedure...................................................................................................................................5- 1
5.2 Program Example Conditions ...........................................................................................................................5- 2
5.3 Program Examples when QCPU (Q Mode) Is Used .........................................................................................5- 5
5.4 Program Examples when QnACPU Is Used .....................................................................................................5- 9
5.5 Program Example when ACPU/QCPU (A Mode) Is Used (Dedicated Instructions).......................................... 5-11
5.6 Program Example when ACPU/QCPU (A Mode) Is Used (FROM/TO Instructions).......................................... 5-14
6. TROUBLESHOOTING 6-1 to 6-5
6.1 Cause of Errors and Corrective Actions by LED Indication............................................................................... 6- 1
6.2 When Wire Breakage Detection Flag is On...................................................................................................... 6- 3
6.3 When E2PROM Error Flag is On....................................................................................................................... 6- 3
6.4 When Detected Temperature Value cannot be Read....................................................................................... 6- 3
6.5 When Detected Temperature Value is Abnormal ............................................................................................. 6- 3
6.6 When There is a Communication Error between Master Station and AJ65BT-64RD....................................... 6- 4
APPENDIX A-1 to A-2
Appendix 1 Standard Thermal Electromotive Force of Platinum Temperature-Measuring Resistor....................... A- 1
Appendix 1.1 New JIS⋅IEC type (Pt100)........................................................................................................ A- 1
Appendix 1.2 Old JIS type (JPt100)...............................................................................................................A- 1
Appendix 2 External Dimensions Diagram ............................................................................................................. A- 2
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About This Manual
The following are manuals related to this product.
Request for the manuals as needed according to the chart below.
Related Manuals
Manual Name Manual Number
(Model Code)
CC-Link System Master/Local Module User's Manual type AJ61BT11/A1SJ61BT11
Describes the system configuration, performance specifications, functions, handling, wiring and
troubleshooting of the AJ61BT11 and A1SJ61BT11. (Optionally available)
IB-66721
(13J872)
CC-Link System Master/Local Module User's Manual type AJ61QBT11/A1SJ61QBT11
Describes the system configuration, performance specifications, functions, handling, wiring and
troubleshooting of the AJ61QBT11 and A1SJ61QBT11. (Optionally available)
IB-66722
(13J873)
CC-Link System Master/Local Module User's Manual type QJ61BT11N
Describes the system configuration, performance specifications, functions, handling, wiring and
troubleshooting of the QJ61BT11N. (Optionally available)
SH-080394E
(13JR64)
Programming Manual type AnSHCPU/AnACPU/AnUCPU/QCPU-A (A Mode) (Dedicated
Instructions)
Explains the instructions extended for the AnSHCPU/AnACPU/AnUCPU/QCPU-A (A Mode).
(Optionally available)
IB-66251
(13J742)
Conformation to the EMC Directive and Low Voltage Instruction
When complying with EMC Directives and Low-Voltage Directives by assembling a
Mitsubishi PLC compatible with EMC Directive and Low-Voltage Directives into the
user product, refer to Chapter 3 "EMC Directives and Low-Voltage Directives" in the
User’s Manual (Hardware) for the CPU module being used.
The CE logo is printed on the rating plate on the main body of the PLC that conforms
to the EMC directive and low voltage instruction.
To conform this product to the EMC Directive and Low Voltage Directive, refer to the
Section of "CC-Link Modules" in Chapter 3 "EMC Directive and Low Voltage
Directive" of the User's Manual (Hardware) of the CPU module used.
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About Generic Terms and Abbreviations
Unless otherwise specified, this manual uses the following generic terms and abbreviations to
explain the AJ65BT-64RD3/AJ65BT-64RD4 platinum temperature-measuring resistor Pt100
temperature input module.
Generic Term/
Abbreviation Description
GX Developer Generic product name for product model names SWnD5C-GPPW, SWnD5C-GPPW-A, SWnD5C-GPPW-V
and SWnD5C-GPPW-VA. n in the model name indicates 4 or more.
ACPU Generic term for A0J2CPU, A0J2HCPU, A1CPU, A2CPU, A2CPU-S1, A3CPU, A1SCPU, A1SCPUC24-R2,
A1SHCPU, A1SJCPU, A1SJCPU-S3, A1SJHCPU, A1NCPU, A2NCPU, A2NCPU-S1, A3NCPU, A3MCPU,
A3HCPU, A2SCPU, A2SHCPU, A2ACPU, A2ACPU-S1, A3ACPU, A2UCPU, A2UCPU-S1, A2USCPU,
A2USCPU-S1, A2USHCPU-S1, A3UCPU and A4UCPU.
QnACPU Generic term for Q2ACPU, Q2ACPU-S1, Q2ASCPU, Q2ASCPU-S1, Q2ASHCPU, Q2ASHCPU-S1, Q3ACPU,
Q4APU and Q4ARCPU.
QCPU (A mode) Generic term for Q02CPU-A, Q02HCPU-A and Q06HCPU-A.
QCPU (Q mode) Generic term for Q02CPU, Q02HCPU, Q06HCPU, Q12HCPU and Q25HCPU.
Master station Station that controls a data link system.
One station is required for one system.
Local station Station that has a PLC CPU and can communicate with the master station and other local stations.
Remote I/O station Station that handles only bit unit information. (Input/output from/to external device)
(AJ65BTB1-16D, AJ65SBTB1-16D, etc.)
Remote device station Station that handles bit unit information and word unit information. (Input/output from/to external device, analog
data conversion)
Remote station Generic term for remote I/O station and remote device station. Controlled by the master station.
Intelligent device station Station that can perform transient transmission, e.g. AJ65BT-R2. (Local station included)
Master module Generic term for QJ61BT11, QJ61BT11N, AJ61BT11 A1SJ61BT11, AJ61QBT11 and A1SJ61QBT11 used as
the master station.
SB Link special relay (for CC-Link)
Bit unit information that indicates the module operation status or data link status of the master station/local
station. Represented as SB for convenience.
SW Link special register (for CC-Link)
16-bit unit information that indicates the module operation status or data link status of the master station/local
station. Represented as SW for convenience.
RX Remote input (for CC-Link)
Information input from a remote station to the master station in bit unit. Represented as RX for convenience.
RY Remote output (for CC-Link)
Information output from the master station to a remote station in bit unit. Represented as RY for convenience.
RWw Remote register (write area for CC-Link)
Information output from the master station to a remote device station in 16-bit unit. Represented as RWw for
convenience.
RWr Remote register (read area for CC-Link)
Information input from a remote device station to the master station in 16-bit unit. Represented as RWr for
convenience.
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Packing List
This product consists of the following items.
Product name Quantity
AJ65BT-64RD3 platinum temperature-measuring resistor Pt100 temperature input module 1
AJ65BT-64RD4 platinum temperature-measuring resistor Pt100 temperature input module
AJ65BT-64RD3/AJ65BT-64RD4 platinum temperature-measuring resistor Pt100 temperature input module
user's manual (hardware)
1
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MEMO
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1. OVERVIEW MELSEC-A
1-1
1. OVERVIEW
This user's manual explains the specifications, handling, programming method, etc. of the AJ65BT-
64RD3 platinum temperature-measuring resistor Pt100 temperature input module (abbreviated as the
AJ65BT-64RD3 from here on) and AJ65BT-64RD4 platinum temperature-measuring resistor Pt100
temperature input module (abbreviated as the AJ65BT-64RD4 from here on), which are used as
remote device stations in a Control & Communication Link (abbreviated as CC-Link from here on)
system.
The AJ65BT-64RD3 is a 3-wire system connecting module for the platinum temperature-measuring
resistor.
The AJ65BT-64RD4 is a 4-wire system connecting module for the platinum temperature-measuring
resistor.
(Hereinafter, the AJ65BT-64RD3 and AJ65BT-64RD4 will be collectively referred to as AJ65BT-64RD.)
The AJ65BT-64RD converts temperature data input from platinum temperature-measuring resistor Pt
100 (abbreviated as Pt 100 from here on) or platinum temperature-measuring resistor JPt 100
(abbreviated as JPt 100 from here on) to 16-bit signed BIN data (up to the first decimal place), or 32-
bit signed BIN data (up to the third decimal place).
1.1 Features
The following describes the features of AJ65BT-64RD.
(1) Stores temperature data
By directly connecting the old JIS or new JIS IEC type platinum temperature-measuring resistor
to AJ65BT-64RD, temperature data [°C] may be received as digital values.
For the detected temperature, values to the first place and third place below decimal point are
stored in the remote register.
(2) Conversion is possible at four channels per module.
Conversion of temperatures into digital values can be carried out at four channels in a single
AJ65BT-64RD module.
Also, the conversion enable/disable can be specified for individual channels.
(3) Designation of sampling processing and travel average processing
As a conversion method, either sampling processing or travel averaging processing can be
selected for each channel.
(4) Wire breakage detection is possible at individual channels.
The wire breakage of platinum temperature-measuring resistor or cable can be detected for each
channel.
(5) High overall accuracy
High-accuracy temperature detection is feasible with a tolerance of ±0.25 % of the full scale in
overall accuracy for normal temperature detection, and ±0.1 % of the full scale when the ambient
temperature is in the normal temperature range (25 °C ±5 °C).
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2. SYSTEM CONFIGURATION MELSEC-A
2-1
2. SYSTEM CONFIGURATION
System configuration when using the AJ65BT-64RD is explained below.
2.1 Overall Configuration
The overall configuration when using the AJ65BT-64RD is shown below.
4 stations occupied
RX/RY 128 points each
RWr/RWw 16 points each
Platinum temperature-
measuring resistor
Temperature detection
target object
Master/local module for CC-Link (master station) Master/local module for CC-Link (local station)
CC-Link dedicated cable
(Intelligent device station) (Remote I/O station)
AJ65BT-64RD
(Remote device station)
(Remote device station)
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2. SYSTEM CONFIGURATION MELSEC-A
2-2
2.2 Applicable Systems
This section explains applicable systems.
(1) Applicable master modules
The AJ65BT-64RD is applicable to the following master modules.
• AJ61BT11
• A1SJ61BT11
• AJ61QBT11
• A1SJ61QBT11
• QJ61BT11
• QJ61BT11N
POINT
When using the AJ61BT11, A1SJ61BT11, AJ61QBT11 or A1SJ61QBT11, use the one where the
following number (9707 B or later) is indicated in the DATE column of the rating plate.
The module where "9707 B" is not indicated in the DATE column cannot be used.
MITSUBISHI
MITSUBISHI ELECTRIC BD992D008H40
CPU UNIT
MODEL
DATE
PROGRAMMABLE CONTROLLER
DATE 9707 B
MITSUBISHI ELECTRIC CORPORATION JAPAN
BD992D008H40
9707 B
Date of
manufacture
Function
version
Date of
manufacture
Function
version
<Large type>
<Small type>
(2) Restrictions on use of CC-Link dedicated instructions (RLPA, RRPA)
The CC-Link dedicated instructions (RLPA, RRPA) may be inapplicable depending on the used
PLC CPU and master module.
For details of the restrictions, refer to the A series master module user's manual (details) or
AnSHCPU/AnACPU/AnUCPU programming manual (dedicated instructions).
The AJ65BT-64RD accepts only the dedicated instructions RLPA and RRPA.
Refer to Section 5.5 for a program example that uses the dedicated instructions (RLPA, RRPA).
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3. SPECIFICATIONS MELSEC-A
3-1
3. SPECIFICATIONS
This section explains the AJ65BT-64RD the general specifications, performance specifications, and
transmission specifications.
3.1 General Specification
This section explains the AJ65BT-64RD general specifications.
Table 3.1 General Specification
Item Specifications
Ambient operating
temperature 0 to 55 °C
Ambient storage temperature -20 to 75 °C
Ambient operating humidity 10 to 90 %RH, Non-condensing
Ambient storage humidity 10 to 90 %RH, Non-condensing
Frequency Acceleration Amplitude No. of sweeps
10 to 57 Hz — 0.075 mm
Vibration resistance 57 to 150 Hz 9.8 m/s2—
10 to 57 Hz — 0.035 mm
57 to 150 Hz 4.9 m/s2—
Shock resistance Conforming to JIS B 3502, IEC 61131-2
(147 m/s2, 3 times in each of 3 directions X Y Z)
Operating ambience No corrosive gases
Operating elevation 2000 m (6562 ft.) max.
Installation location Control panel
Over voltage category *1 II max.
Pollution level *2 2 max.
*1 : This indicates the section of the power supply to which the equipment is assumed to be
connected between the public electrical power distribution network and the machinery within the
premises. Category II applies to equipment for which electrical power is supplied from fixed
facilities. The surge voltage withstand level for up to the rated voltage of 300 V is 2500 V.
*2 : This index indicates the degree to which conductive material is generated in terms of the
environment in which the equipment is used. Pollution level 2 is when only non-conductive
pollution occurs. A temporary conductivity caused by condensation must be expected
occasionally.
Conforming to
JIS B 3502,
IEC 61131-2
Under intermittent
vibration 10 times each in
X, Y, Z
directions
(for 80 min.)
Under continuous
vibration
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3. SPECIFICATIONS MELSEC-A
3-2
3.2 Performance Specification
The performance specification of the AJ65BT-64RD is explained below.
Item AJ65BT-64RD3 AJ65BT-64RD4
Measurement method 3-wire 4-wire
Connectable platinum temperature-
measuring resistor Pt 100, JPt 100
Output current for detecting temperature 1 mA
Temperature input range –180 to 600 °C
Temperature detection
16-bit signed binary : –1800 to 6000
(value to one decimal place × 10)
value 32-bit signed binary : –180000 to 600000
(value to three decimal places × 1000)
Overall
Operating ambient
temperature
(25 ± 5 °C)
± 0.1 % (accuracy for maximum value)
accuracy Operating ambient
temperature (less than
20 °C, more than 30
°C)
± 0.25 % (accuracy for maximum value)
Resolution 0.025 °C
Conversion speed (Sampling time) 40 ms/channel *1
Temperature input point 4-channel/module
CC-Link station type Remote device station
Occupied points 4-station : RX/RY 128 points each
RWw/RWr 16 points each
Connection cable CC-Link dedicated cable
Noise durability Noise voltage 500 Vp-p, Noise width 1 μs by noise simulator of the noise frequency 25 to 60 Hz
Dielectric withstand voltage
Between batch of power supply system and ground
Between batch of power supply system and batch of communication system
Between batch of communication system and batch of temperature input
Between batch of temperature input and ground
500V AC 1 minute
Insulation method
Between the platinum temperature-measuring
resistor input and CC-Link transmission: Photocoupler insulation
Between the platinum temperature-measuring
resistor input and channel: no insulation
Insulation resistor
Between batch of power supply system and ground
Between batch of power supply system and batch of communication system
Between batch of communication system and batch of temperature input
Between batch of temperature input and ground
500 V DC, 10MΩor more on the insulation resistance tester
Connection terminal block 27-point terminal block (M3.5 × 7 screws)
Supported cable size 0.75 to 2.00 mm2
Supported solderless terminal RAV 1.25-3.5, RAV 2-3.5 (Conform to JIS C 2805)
Module installation screw M4 × 0.7 mm (0.03 in.) × 16 mm (0.63 in.) or more
Installation in the rail is possible, too.
Applicable DIN rail TH 35-7.5 Fe, TH 35-7.5 Al, TH 35-15 Fe
(conform to JIS C 2812)
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3. SPECIFICATIONS MELSEC-A
3-3
Performance specification (continued)
Item AJ65BT-64RD3 AJ65BT-64RD4
External power supply 24 V DC (18 to 30 V DC)
Internal consumed current 0.17 A
Allowable momentary power failure
period 1ms
Weight 0.38 (0.84) kg (lb.)
*1 : Conversion speed is the time until it is converted to the corresponding digital value after the
temperature has been input, and then stored in the remote register.
When the multiple channels are used, the conversion speed is “40 ms × number of the
conversion enable channels”
3.2.1 Specifications when connecting to a platinum temperature-measuring
resistor
The following explains the specifications when connecting the AJ65BT-64RD and a platinum
temperature-measuring resistor.
(1) • The effect on the measured resistance by the discrepancy in the lead resistance value
connected to A, b is approximately
0.025 °C/10 m Ω.
• The lead resistance value between platinum temperature-measuring resistor and AJ65BT-
64RD3 should be 100 Ωor less per line.
A
Platinum temperature-
measurin
g
resistor
AJ65BT-64RD3
100 Ω or less per line
B
b
SLD
(2) The lead resistance value between between platinum temperature-measuring resistor and
AJ65BT-64RD4 should be 100 Ωor less per line.
A
AJ65BT-64RD4
B
a
b
SLD
100 Ω or less per line
Platinum temperature-
measuring resistor
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3. SPECIFICATIONS MELSEC-A
3-4
3.2.2 Data link processing time
For the AJ65BT-64RD, the data link processing time shown below will be required in order to execute
each function.
For details of the link scan time, refer to the user's manual (details) of the used mater module.
Example) Data link processing time in asynchronous mode when the master module is the QJ61BT11
(normal value)
(1) Mater station (RY) →Remote device station (RY) processing time
[Expression]
SM + LS × 1 + Remote device station processing time [ms]
SM : Master station sequence program scan time
LS : Link scan time
Remote device station processing time: 1ms
(2) Master station (RX) ←Remote Device Station (RX) Processing Time
[Expression]
SM + LS × 1 + Remote device station processing time [ms]
SM : Master station sequence program scan time
LS : Link scan time
Remote device station processing time: (Number of used channels +1*) ×40ms
*: Internal processing time of AJ65BT-64RD
(3) Master station (RWr) ←Remote Device Station (RWr) Processing Time
[Expression]
SM + LS × 1 + Remote device station processing time [ms]
SM : Master station sequence program scan time
LS : Link scan time
Remote device station processing time: (Number of used channels +1*) ×40ms
*: Internal processing time of AJ65BT-64RD
POINT
The above are examples of processing time until the control of the output signal to the AJ65BT-
64RD from the PLC CPU or until input signals or remote registers are read.
The maximum time that takes for updating the detected temperature read by the PLC CPU is
“data link processing time + sampling time.”
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