Chapter 2. SPECIFICATIONS
Contents
1. Reference No Item Specifications specification 1 Operating ambient 0 55 C temperature 2 Storage ambient 25 75 temperature 3 Operating humidity 5 95 non condensing 4 Storage humidity 5 95 RH non condensing Occasional vibration Frequency Acceleration Amplitude Sweep Count Es 10x f 57 Hz 0 075 mm 5 Vibration 57 lt f lt 150 Hz 9 8 m s 41 G 10 times in IEC 11312 Continuous vibration each Frequency Acceleration Amplitude direction 1051 lt 57 Hz 0035 10 2 57 lt f lt 150 Hz 4 9 5 10 56 Maximum shock acceleration 147 m s 15G 6 Shocks Duration time 11ms IEC 11312 Pulse wave half sine pulse 3 times in each of X Y and Z directions Square wave impulse noise 1 500 V Electrostatic discharge Voltage 4 kV contact discharge 2 ER Radiated 27 500 MHz 10 V m 2 Noise E Immunity Digital 1 05 Digital 06240 Severity Analog 1 05 Fast transient burst noise Level Ron interface 2 communication 1 06 Voltage 2kV lkV 0 25 kV 8 Operating Atmosphere Free from corrosive gases and excessive dust 9 Operation Altitude Up to 2 000m 10 Pollution degree 11 Cooling rs method Self cooling Table 2 1 General Specifications REMARK 1 IEC International Electromechanical Commission international civilian organization which produces standards for electrical and electronic2. STAT USINT Error status indication area Used to output the number of an error when it occurs during reading function block execution For description of errors see GM Section 7 4 ACT BOOL Run channel status indication area Array After the reading function block is finished with no error 1 is output if the channel is in Note 1 normal state But 0 is output for the disabled channels ALM BOOL Run channel error indication area Array Lis outputted when error occurs for each run channel Note 1 ALM_ USINT Run channel error code area CODE Array Used to output the code of error occurred during run for each channel Note1 Forerror description see GM Section 7 4 TEMP INT Detected temperature value output area Array The CPU module reads the detected temperature value 200 0 C to 600 0 C of the Note 1 corresponding channel from the RTD input module and outputs it to this area The detected temperature value of each channel is 10 times than the real temperature value Example Detected temperature value 1234 real temperature value 123 4 C SCAL INT Digital conversion value output area Array The CPU module reads the digital conversion of the corresponding channel from the Note 1 RTD input module and outputs it to this area The detected temperature value 200 0 to 600 0 C of each channel is converted into the a digital value within 0 to 16000 and it is outputted to this
3. I O Variable T Descriptions REQ BOOL Function block execution request area at rising edge G3F RD3A Used to request an execution of the reading function block If the conditions connected with this area are established while the RTDRGINI program is running and 0 changes into l rising edge the module REQ NDR initialization function block is executed NET_NO USINT Location No of the slot where the communication module of the station to which the function block will be sentis loaded Setting range 0 7 ST NO USINT Station No of the communication module loaded in the remote 1 0 station Setting range 0 63 BASE USINT Base module location No Used to write the number of the base where the RTD input module is loaded Setting range 0 3 SLOT USINT Slot location No Used to write the number of the slot where the RTD input module is loaded Setting range 0 7 CH BOOL Run channel enable disable specification Array Used to enable or disable a channel for run Note 1 Specify 1 for enabling and 0 for disabling TYPE BOOL Specifying the type of RTD for use Array Used to specify the type of 0 for and 1 for J Pt100 for each Note 1 channel RD2A 1 when the function block is finished without error 1 remains during the scan where the execution condition is being satisfied and it changes into REEN O at the nextscan _ Error informa
4. See Remote communications module User s Manual 129 mote Base location No outside the setting range Adjust the setting range See GM Section 7 2 131 Slot location No outside the setting range Specify correctly the numbers of the slot where the RTD Input module is loaded 133 Other module not RTD input module is loaded Load RTD input module on the specified slot 135 RTD input module hardware defect Contacta service station 136 RTD input module memory defect Contacta service station 137 The run channel was not specified in the Specify correctly run channels in the initalization Initialization function block function block 138 Disconnection detected at one or more of the 0 See GM Section 7 42 use channels or temperature outside the range 7 4 2 Errors Indicated by the Output Variable ALM CODE in the Array Type Detected Temperature Value Reading Function Block G3F RD3A RTD3ARD RTDR3RD G4F RD2A RTD2ARD RTDR2RD ALM CODE No Descriptions Corrective Action 0 Normal run status 16 disconnection detected Fix the A disconnection between RTD input module and disconnection detected Fix the A disconnection between RTD input module and RTD b disconnection detected A and B disconnection detected simultaneously 19 Temperature outside the range Correctly spec
5. 4 Program INITIAL READY START _NETO_LIVLO RTDRSINI START REQ S trigger and initial request for execution of live information on The RTD input module initialization is settings the initialization function opposite station normally Line 1 block when if has not been Turns at it s normal ERRORO operated operation Slot location No in the communication Indtcatig error information during Turns off at fault power off module of the local station initialization function block execution Line 2 0 5 4 remote station Indicating the type of error occurred NETO NETO LIVCO MOVE Base No of the RTD durnig initialzation function block execution Line 3 71 EN ENO input module 0 ACTO Indicating the channel operating normally The power off information on the INT OUTP START Line 4 opposite station Turns on when recovered from at location of fault power off and remains RTD input module Line 5 initial the user program turns it off CH Specifying the used channel Line 6 F PT100 Specifying the type ofthe TMR Lie 7 NETO RST 0J wee READ START READ NDR _NETO_LIV O RTDR3RD Line 9 FA um Request for execution of the reading function block at each Line 10 communications cycle ERROR1 Slot location No in the communication rad i module of the
6. the digital BCD value i output QD0 4 0 QD0 4 19 Line 28 F_DATA3qIN1 OUTP BUFFER Line 29 Line 30 0 0 0 ALARM 00 3 1 Line 31 dp r at 8 7 Chapter 8 PROGRAMMING 6 1 0 variables used in the Program Variable Name Data AT Address Initial Value ACTO VAR ARRAY 0 7 OF BOOL ALARM VAR BOOL BUFFERO VAR DINT BURRER1 VAR DINT DATAO VAR INT F DATA VAR INT DATA1 VAR INT F_DATA2 VAR INT DATA3 VAR INTIAL VAR FB Instance PT100 VAR ARRAY 0 7 OF BOOL 2 0 0 0 0 0 0 0 0 RD STAT VAR USINT READ VAR FB Instance RTD CH VAR ARRAY 0 77 OF BOOL 21 1 0 0 0 0 0 0 0 SCALEO VAR INT STATO VAR USINT 8 8 Chapter 8 PROGRAMMING 8 3 AProgram when Loading the RTD Input Module onto the Remote 1 0 Station 1 System Configuration Remote Station No 0 Slot 0 2 Initial Settings 1 Specifying the used channel channel 0 2 Specifying the type of a RTD Pt 100 3 Descriptions of the Program 1 00 1 0 turns on when the temperature value detected at channel 0 is more than or equal to 10 C 2 00 1 1 turns on when the temperature value detected at channel 0 is less than 109 and more than or equal to 20 C 3 96Q0 1 2 turns on when the temperature value detected at channel 0 is less than 20 C 8 9 Chapter 8 PROGRAMMING
7. Channel enable 1 Channel disable 0 To specify channel enable disable 8 3 Chapter 8 PROGRAMMING 2 Specifying the type of the RTD Channel No 0 Pt100 1 JPt100 Specify Pt100 Pt100 8 4 Chapter 8 PROGRAMMING 6 1 0 variables used in the program Variable Name Data AT Address Initial Value ALARM VAR BOOL BUFFER VAR DINT CHO DIGITAL VAR CHO TEMPERATURE VAR 100 VAR ARRAY 0 7 OF BOOL 2 0 0 0 0 0 0 0 0 RTD_ACTO VAR ARRAY 0 7 OF BOOL RTD_CH VAR ARRAY 0 7 OF BOOL 1 0 0 0 0 0 0 0 RTD_INI VAR FB Instance RTD RD VAR FB Instance RTD READY VAR BOOL RTD STATO VAR USINT STATI VAR USINT 8 5 Chapter 8 PROGRAMMING 8 2 A Program for Conversing the Detected Temperature Value C into Fahrenheit F and Output as a BCD Value 1 System GM3 GM3 63 G3F 230 G3Q D24A RD3A RY4A IRY2A RY4A 00 4 0 00 4 19 BCD digital display A Fahrenheit temperature is display The ramp turns on when the Feahrenheit temperature value is a minusvalue 1 RTD module initial setting 10 0 0 n ramp turns on when disconnection occurs Pt100 The ramp turns on when the detected 7 temperture value is a negative BCD digital display A detected temperature value of 00 2 0 00 2 19 centigrade is displayed 2 Initia
8. 4 1 Errors Indicated by RUN LED Flickering 4 1 42 Troubleshooting Procedure veo 4 2 421 RUN LED Flickering Wig Saale ar H PEUT PUPPES 4 2 4 2 3 Detected Temperature Value Unreadable from the CPU Module 4 3 4 24 Input Value of the RTD Is Not Consistent with The Detected Temperature Value mmm 4 4 4 2 5 RTD Input Module Hardware Defect mmm 4 4 Chapter 5 DIMENSIONS 5 1 G3F RD3A Dimensions e IH 5 1 5 2 GAF RD2A Dimensions IH 5 2 Chapter 6 Standard Resistance Value of PURTD Bandas ORO IO COO ODORE O 6 1 Chapter 7 FUNCTION BLOCKS 71 Inserting Function Blocks for RTD Input Module in GMWIN m 7 1 22 Vocal Function Blocks io aee a UE XE 1 2 721 Module Initialization G3F RD3A RTD3INI G4F RD2A RTD2INI m 1 2 7 2 2 Reading the Detected Temperature Value of the Module Array Type G3F RD3A RTD3ARD G4F RD2A FRTD2ARD m HH 723 Reading the Detected Temperature Value of the Module Single Type G3F RD3A RTD3RD G4F RD2A RTD2RD Jo
9. Load RTD input module on the specified slot on 6 Channel No outside the setting range Specify correctly the No ofthe run channel 7 RTD input module hardware defect 0 O Contacta service station 8 RTD input module memory defect 0 O Contacta service station 9 The run channel was not specified in the Specify correctly run channels in the initialization Initialization function block function block 10 Disconnection detected at one or more of the See GM Section 7 1 2 use channels or temperature outside the range 16 A disconnection detected at the use channels O Fix the A terminal disconnection between the RTD input module and the temperature measuring resistor 17 B disconnection detected at the use channels Fix the B terminal disconnection between the RTD input module and the temperature measuring resistor 18 b disconnection detected at the use channels Fix the disconnection between the b terminal RTD A and B disconnection detected simultaneously input module and the temperature measuring resistor Or Fix A and B terminals disconnection 19 Temperature outside the range at the use Correctly specify the type of the temperature channels easuring resistor or use the temperature within the range 200 0 C 600 0 128 Re Remote communications module H W defect 0
10. Users LG Programmable Logic Controller GLOFA RD2A LG Industrial Systems Chapter 1 INTRODUCTION 11 Features 1 2 Glossary TT LA 1 NO N N M HR Chapter2 SPECIFICATIONS 2 1 General Specifications 2 1 22 Performance Specifications e eH 2 2 23 Names of Parts and Functions HH Hee Hee 2 3 C SEAL Sane 23 o 3d CAE DA 2 4 24 RTD Input Module Characteristics 2 5 2 4 1 Temperature Conversion Characteristics 2 85 24 2 Conversion Speed eee ee ee eee eene 2 5 243 VIR 2 5 Function 2 5 Connection between a Pt and RTD Input Module 2 7 3 INSTALLATION AND WIRING 31 Installation Hmmm een 3 1 JIT metalation Ambien Ce versa ees Ret decl 3 1 2 Handling Precautions meme meme e eee 3 1 32 Wiring Precautions mmm nene eene 3 2 Chapter 4 TROUBLESHOOTING
11. 7 3 Remote Function Blocks titil 7 5 731 Module Initialization G3F RD3A RTDR3INI GA4F RD2A RTDR2INI m 1 5 7 32 Reading the Detected Temperature Value of the Module 88 1 6 G3F RD3A RTDR3ARD G4F RD2A RTDR2ARD 74 Errors on Function Block HII 7 7 7 4 1 Errors Indicated by the Output Variable STAT mmm 1 1 7 4 2 Error Indicated by the Output Variable CODE in the Array Type Detected Temperature Value Reading Function Block 88 Chapter 8 PROGRAMMING 81 A Program for Output of the Detected Temperature Value as a BCD Value 82 AProgram for Conversing the Detected Temperature Value C into Fahrenheit F and Output as a BCD Value 8 3 A Program when Loading the RTD Input Module onto the Remote I O Station EN Be sure to read carefully the safety precautions given in data sheet and user s manual before operating the module and follow them The precautions explained here only apply to the G3F RD3A and G4F RD24A For safety precautions on the PLC system see the GLOFA GM3 4 User s Manuals A precaution is given with a hazard alert triangular symbol to call your attention and precautions are represented as follows according to the degree of hazard If not provided with proper prevention it can cause death or fatal N WARMING C injury or considerable loss of property CAUTION If not properly observed it can cause a hazard situation to result
12. RTD Pt100 Pt1000 2 Shielded wire 2 7 Chapter 2 SPECIFICATIONS The shields of the RTD and shields of wire should be connected to the FG of the RTD input module 2 8 Chapter 3 INSTALLATION AND WIRING Chapter 3 INSTALLATION AND WIRING 3 1 Installation 311 Installation Ambience This module has high reliability regardless of its installation environment but be sure to check the following for system reliability and stability 1 Ambience requirements Avoid installing this unit in locations which are subjected or exposed to Water leakage and dust Continuous shocks or vibrations Direct sunlight Dew condensation due to rapid temperature change Higher or lower temperatures outside the range of 0 to 55 2 Precautions during installing and wiring During drilling or wiring do not allow any wire scraps to enter into the PLC Install it on locations that are convenient for operation Make sure that itis not located on the same panel that high voltage equipment located Make sure thatthe distance from the walls of duct and external equipment be 50 mm or more Be sure to be grounded to locations that have good ambient noise immunity 3 12 Handling Precautions From unpacking to installing the RTD input module be sure to check the following 1 Do not drop it off and make sure that strong shock should not be applied 2 Do not unload the PCB from its case It can cause faults 3 During wi
13. in severe or slight injury or a loss of property However a precaution followed with N CAUTION can also result in serious conditions Both of two symbols indicate that an important content is mentioned therefore be sure to observe it Keep this manual handy for your quick reference in necessary Design Precautions Installation Precautions CAUTION gt Do not run 1 0 signal lines and Operate the PLC in the environ ment conditions given in the Compensation wires near to high voltage line or power line Separate them as 100 mm or more as possible Otherwise noise can cause module mal function general specifications If operated in other environment not specified in the general specifications it can cause an electric shock a fire malfunction or damage or degradation of the module Make sure the module fixing pro jections is inserted into the mod ule fixing hole and fixed Improper installation of the mod ule can cause malfunction dis order or falling Wiring Precautions N CAUTION When grounding a FG terminal be sure to provide class 3 grounding which is dedicated to the PLC If not grounded It can cause malfunction Before the PLC wiring be sure to check the rated voltage and terminal arrangement for the module and observe them correctly If a different power not of the rated voltage is applied or wrong wiring is provided it can cause a fire or disorder of the module Drive the t
14. RTD CH VAR ARRAY 0 7 OF BOOL 2 0 0 0 0 0 0 0 0 START VAR BOOL STATO VAR USINT STATI VAR USINT TEMP VAR ARRAY 0 7 OF INT
15. and outputs it 11 Features Conversion from the temperature value into the value used in the Temperature data A i temperature value Buffer memory temperature conversion value Qo A change in the ambient temperature of the Pt 100 changes the resistance value of the Pt 100 Q Temperature data is stroed as temperature cnversion value in the buffer memory of the input module 3 A temperature conversion stored the Buffer memory of the input module is read from PLC CPU 1 With direct connection of the RTD input module the temperature data C can be converted into a digital value to be processed in the PLC 2 The temperature data C input can be processed to one digit after the point as a digital value 3 One module can be connected to G3F RD3A 8 point or G4F R D2A 4 point Pt100 or J Pt100 4 The RTD input module has Pt100 J pt100 or cable burn out function at their every channel 5 The RTD input module detects the out of range temperature that is input by Pt100 or J Pt100 6 The 5 digit LED display included in the G3F RD3A displays the temperature input value and error code 1 1 Chapter 1 INTRODUCTION 1 2 Glossary 1 2 1 A Analog Value e Nunter of man 0 time 0 gt time Fig 1 1 Analog Value Fig 1 2 Digital Value The continuous changeable value such as voltage curren
16. area The detected temperature value of each channel is 10 times than the real temperature value Example Detected temperature value 1234 real temperature value 123 4 C Digital conversion value output area The CPU module reads the digital conversion of the corresponding channel from the RTD input module and outputs it to this area The detected temperature value 200 0 C to 600 0 C of each channel is converted into a digital value within 0 to 16000 and it is output to this area Value to be read from the output variable e SCAL the value to be read from the output variable TEMP 2000 x2 e Example Where a temperature is 234 5 C The value to be read from the TEMP is temperature 10 then 2345 is the detected temperature value The value to be read from the SCAL is 2345 2000 X 2 i e 8690 The output value converted into a digital value can be used as the PV of the PID control module 7 4 Chapter 7 FUNCTION BLOCKS 7 3 Remote Function Block 7 3 1 Module Initialization G3F RD3A RTDR3INI G4F RD2A RTDR2INI The module initialization function block specifies for use in the program the location No of the slot where the communication module loaded in the receiving station the station No of the communication module loaded the remote 1 0 station the No of the base where the RTD input module is loaded the use channels and the type of the RTD
17. area Value read from the output variable SCAL the value read the output variable TEMP 2000 X 2 e Example Where a temperature is 234 5 C The value read from the TEMP Is temperature X 10 then 2345 is the detected temperature value The value read form the SCAL is 2345 2000 X 2 i e 8690 The output value converted into a digital value can be used as the PV of the PID control module REMARK Note 1 The numbers of Array are 8 in G3F RD3A 4 in G4F RD2A 7 6 Chapter 7 FUNCTION BLOCKS 74 Errors on Function Block 7 41 Errors Indicated by the Output Variable STAT Errors indicated the output variable STAT and their corrective actions are explained Function Block STAT Item Initiali Reading No Descriptions zation Stand Corrective Action alone 0 Local Normal run status 0 1 Base location No outside the setting range 0 Adjust it within the setting range See GM Section 7 2 2 The corresponding base unit hardware defect 0 O Contacta service station 3 Slot location No outside the setting range Specify correctly the numbers of the slot where the RTD module is loaded 4 The specified slot has no RTD input module Load RTD input module on the specified slot 5 A module other than RTD input module is loaded
18. gives names and functions of each part of the G4F RD2A G4F RD2A 4 RUN LED G4F RD2A module operating status Indication Normal operation Flickering Error occurred For more information see Je gl Section Common 4 1 Off 5 VDC disconnection or G4F RD2A module error a Das S JEE JE 8996 999 BE als amp el 2 4 Chapter 2 SPECIFICATIONS 2 4 RTD Input Module Characteristics 241 Temperature Conversion Characteristics The RTD input module as shown in the Fig 2 1 linearlizes the non linear characteristic resistance input of the RTD Characteristics between linearlized _ temperature and resistance 4 2 600 Characteristies between real i temperature and resistance 2 peru 1 Temperature conversion value Resistance i temperature detection value 200 C Fig 2 1 Temperature conversion characteristics Pt100 24 2 Conversion speed The conversion speed of the RTD input module is 50 ms per channel and its processing is processed sequentially that is one channel is processed and then another channel is processed Processing time 50 ms X the number of the used channels Example When three channels are used Processing time 250 ms X 3 2150 ms 24 3 Accuracy The accuracy of RTD input module is within 0 5 96 of all of the measurable temperature range
19. local station Indicating error information Line 11 0 STATI 4 Indicating the type of error R emote station No when one ocours Line 12 ACT1 Base location of the Indicating the channel RTD input module operating normally Line 13 ALARM Slot location no of Turns on when error occurs theRTD input module atthe used channel Line 14 00 1 0 ALARM NO The temperature value Turns on when the detected Specifying the used Indicating the type of error when detected at channl 0 temperature value is more than disconnection error occurs Line 15 100 or equal to 10 TEMP Detected temperature value Line 16 DIGITAL Digital conversion value Line 17 Line 18 Line 19 Q0 1 1 Turns on when the temperature value detected at channel 0 is less Line 20 than 10 C and more than or equal i to 20 C Line 21 Line 22 Line 23 96Q0 1 2 Turns on when the temperature value detected at channel 0 is less Line 24 than 20 Line 25 8 10 Chapter 8 PROGRAMMING 7 1 0 variables used in the Program Variable Name Data AT Address Initial Value ACTO VAR ARRAY 0 7 OF BOOL ACTI VAR ARRAY 0 7 OF BOOL ALARM VAR ARRAY 0 7 OF BOOL ALARM NO VAR ARRAY 0 7 OF BOOL DIGITAL VAR ARRAY 0 7 OF BOOL ERRORO VAR BOOL ERRORI VAR BOOL INITIAL VAR FB Instance PT100 VAR ARRAY 0 7 OF BOOL 2 0 0 0 0 0 0 0 0 READ VAR FB Instance READY VAR BOOL
20. module If the RTD input module which has error is replaced with another one then normally operated See Section 4 2 5 Fault of other module notthe RTD input module For more information see the CPU Module User s Manual 4 2 Chapter 4 TROUBLESHOOTING 42 3 Detected Temperature Value Unreadable from the CPU Module CPU module cannot read the temperature conversion value RUN LED is turned off See Section 4 2 2 See Section 4 2 1 RUN LED is flickering The use channels are correctly specified Check the use channels and correctly specify them Wires are correctly connected to the specified channel Perform correctly the wiring with referring to Section 2 5 Replacing the RTD input module with another one correct the temperature conversion value See Section 4 2 5 The base unit hardware defect See Section 4 2 5 4 3 Chapter 4 TROUBLESHOOTING 4 2 4 Input value of the RTD is not consistent with the detected temperature value Input value of the RTD is not consistent with the detected temperature value RUN LED is flickering See Section 4 2 2 The specified RTD type for the corresponding channel is consistent with the connected RTD type Check the type of the RTD and correctly specify the type The wiring between the temperature resister input module and the temperature measuring resister is correct Perform correctly th
21. to this area The detected temperature value of each channel is 10 times than the real temperature value Example Detected temperature value 1234 real temperature value 123 4 C SCAL INT Digital conversion value output area Array The CPU module reads the digital conversion of the corresponding channel from Note 1 the RTD input module and outputs it to this area The detected temperature value 200 0 C to 600 0 C of each channel is converted into the a digital value within 0 to 16000 and itis output to this area Value to be read from the output variable e SCAL the value to be read from the output variable TEMP 2000 X 2 e Example Where a temperature is 234 5 The value to be read from the TEMP is temperature X 10 then 2345 is the detected temperature value The value to be read from the SCAL is 2345 2000 X 2 i e 8690 The output value converted into a digital value can be used as the PV of the PID control module REMARK Note 1 The numbers of Array are 8 in G3F RD3A 4 in G4F RD2A 7 3 Chapter 7 FUNCTION BLOCKS 7 2 Reading the Detected Temperature Value of the Module Single Type G3F RD3A RTD3RD G4FRD2A RTD2RD The stand alone type Temperature conversion value reading function block processes only one channel of the RTD input module If a channel is enabled then the function block outputs the detected temperature value and its digital conversion value that is usable a
22. Example Whenthe RTD Pt100 is used the conversion values of 100 C and 400 C are as below Measurable temperature full range 800 200 0 to 600 09 Accuracy 800 X 50 596 800 40 005 4 Temperature conversion range 104 to 96 when 100 C 396 C to 404 C when 400 C 2 5 Chapter 2 SPECIFICATIONS 244 Burn out Function The RTD input module has the function of burn out on the Pt100 J Pt100 or cable 1 As shown in the Fig 2 2 if disconnection occurs in the RTD or cable then a voltage outside the measurable range voltage is inputted by the internal burn out circuit and burn out error code is generated 2 The RTD input module can detect disconnection for each channel But burn out is possible only in the channels enabled 3 If disconnection is detected in two or more wires first disconnection error code b generated and then disconnection error code a or b is generated sequentially If disconnection is detected simultaneously inA and B only disconnection error code b is generated Connection Connection Example Burn out Function Remark Method 2 wire bum out area In 4 wire type only all type i wires marked 7 block of terminal block the RTD input module Di all detected as disconnection then the A disconnection error can be detected 3 wire burn out area Mec x Pp terminal block of terminal block th
23. TD3ARD RTDR3RD RTD2ARD RTDRIRD Reading the detected temperature value Array type RTD3RD RTD2RD Reading the detected temperature value Single type 7 1 Inserting Function Blocks for the RTD Input Module in GMWIN Function blocks can be registered with the following procedure while the GMWIN is running Registering function blocks is only possible when a project is open Project P Selection Library Insert I G3F RD3A Inserting local 1 Special 3fb function block RTD3INI RTD3ARD RTD3RD 2 Remote3 3fb RTDR3INI e RTDR3RD 3 Remote 36 Inserting GM4 remote e RTDR3INI function block e RTDR2RD Inserting GM3 remote function block G4F RD2A Inserting local 1 Special 4fb function block RTD2INI e RTD2ARD eRTD2RD 2 Remote4 4fb e RTDR2INI e RTDR2RD 3 Remote3 4fb RTDR3INI RTDR3RD Inserting GM4 remote function block Inserting GM3 remote function block Directories Look in X Lib COMMUNI 3fb an mkstcliib 3fu a REMOTE3 3fb REMOTE4 3fb a SPECIAL STDLIB 3fb an Stdlib 3fu File name Stdlib Files of type M Cancel 7 1 Chapter 7 FUNCTION BLOCKS 72 Local Function Blocks 7 21 Module Initialization G3F RD3A RTD3INI G4F RD2A RTD2INI Module initialization function block specifies RTD input module base location slot location r
24. Used to write the number ofthe slot where the RTD input module is loaded Setting range 0 7 CH BOOL Run channel enable disable specification Array Used to enable or disable a channel for run Note 1 Specify 1 for enabling and 0 for disabling 0 DONE BOOL Function block execution complete status 1 is output when the reading function block is finished with no error and 1 remains until next execution If an error occur 0 is displayed and the operation enters into the stop state STAT USINT Error status indication area Used to output the number of an error when it occurs during reading function block execution For description of errors see GM Section 7 4 ACT BOOL Run channel status indication area Array After the reading function block is finished with no error 1 is output if the Note 1 channel is in normal state But 0 is output for the disabled channels ALM BOOL Run channel error indication area Array is outputted when error occurs for each run channel Note 1 ALM_ USINT Run channel error code area CODE Array Used to output the code of error occurred during run for each channel Note 1 For error description see GM Section 7 4 TEMP INT Detected temperature value output area Array The CPU module reads the detected temperature value 200 0 C to 600 0 C of Note 1 the corresponding channel from the RTD input module and outputs it
25. e RTD input module 4 Ire burn out area L d type terminal block of terminal block the RTD input module No wiring terminal block of X Pt 2 Shield wire Fig 2 2 Burn out Area 2 6 Chapter 2 SPECIFICATIONS 2 5 Connection between a Pt and RTD input module Number of method of connection between Pt and RTD input module are three that is 2 wired type 3 wired type and 4 wired type resistance of the wires used to connect Pt to RTD input module should be 10 or less per wire The same wire in thickness length and kind etc should be used for each channel The difference between the resistance values of the wires used should be 1 Q or less or the accuracy shown in the Table 2 2 could not be satisfied Connection Method 2 wired type Connection Example Wire Conditions terminal terminal block of block it etl wire resistance lt 100 wire resistance lt 100 wire resistance lt 100 3 wired type The difference between the the RTD resistance values of the wires and input module 10 or less The difference between the resistance values of the wires and 10 or less The difference between the resistance values ofthe wires and 1Q or less 4 wired type terminal block of terminal A the block input module Fig 2 3 Method of Connection between Pt and RTD Input Module 1
26. e wiring with referring to Section 2 5 See Section 4 2 5 4 2 5 Input Module Hardware Defect RTD input module hardware defect Contactthe nearest agency or service station 4 4 Chapter 5 DIMENSIONS Chapter 5 DIMENSIONS 51 G3F RD3A Dimensions 0000000000000000 unit mm OTT D 0000000000000000 G3F RD3A RUN Chapter 5 DIMENSIONS 5 2 G4F RD2A Dimensions lege 5 BE SH E 69 E Chapter 6 APPENDIX Chapter 6 Standard Resistance Value of PYRTD Pt1000 Temperature Temperature Unit Q 0 0 10 10 20 20 30 30 40 40 50 50 60 60 70 70 80 80 pt 100Q 90 Temperature C 90 Temperature C Unit Q 0 0 10 10 20 20 30 30 40 40 50 50 60 60 70 70 80 80 90 90 6 1 Chapter 7 FUNCTION BLOCKS Chapter 7 FUNCTION BLOCKS The followings explain the function blocks for the RTD input module used in GMWIN The types of function block are given here G3F RD3A G4F RD2A Local Remote Local Function Remote RTD3INI RTDR3INI RTD2INI RTDR2INI Module Initialization R
27. ending edge G3F Used to request an execution of the reading function block OD f the conditions connected with this area are established while the program is running and 0 changes into 1 rising edge the module reading function block is executed NET N USINT Location No of the slot where the communication module of the station to which the 0 function block will be sentis loaded Setting range 0 7 ST NO USINT Station No ofthe communication module loaded in the remote 1 0 station Setting range 0 63 BASE USINT Base module location No Used to write the number of the base where the RTD input module is loaded Setting range 0 3 SLOT USINT Slot location No Used to write the number ofthe slot where the RTD input module is loaded Setting range 0 7 CH BOOL Run channel enable disable specification Array Used to enable or disable a channel for run Notel Specify 1 for enabling and 0 for disabling 0 NDR BOOL 1 when the function block is finished without error 1 remains during the scan where the execution condition is being satisfied and changes into 0 at next scan GAF RD2A ERR BOOL Error information indication area If error occurs during reading function block execution 1 is outputted and the module enter into the stop state 1 remains during the scan where the execution condition is being satisfied and it changes into 0 at the next scan
28. erminal screws firmly to the defined torque If loosely driven it can cause short circuit a fire or malfunction Be careful that any foreign matter like wire scraps should not enter into the module It can cause a fire disorder or malfunction Test Run and Maintenance Precautions WARNING CAUTION Do not contact the terminals gt Do not separate the module from while the power is applied the printed circuit board P CB or It can cause malfunction do not remodel the module When cleaning or driving a termi They can cause disorder mal nal screw perform them after the function damage of the module power has been turned off or a fire gt Do not perform works while the When mounting or dismounting power is applied which can the module perform them after cause disorder or malfunction the power has been turned off Do not perform works while the power is applied which can cause disorder or malfunction gt When disposing the module do itas an industrial waste Chapter 1 INTRODUCTION Chapter 1 INTRODUCTION These two units are called G3F RD3A and G4F RD2A G3F RD3A is an Pt input module used with the CPU of GLOFA PLC GM1 2 3 series and the G4F RD2A is used with the CPU of GM4 series Hereafter the two units are called the RTD input module The RTD input module is a module that converts the temperature data C input by the Pt Pt100 or J Pt100 into a signed 16 bit digital binary data
29. hen it occurs during initialization function block execution For description of errors see GM Section 7 4 REMARK BOOL Array Note 1 Run channel status indication area After the initialization function block is finished with no error 1 is output if the channel is in normal state But 0 is output for the disabled channels Note 1 The numbers of Array are 8 in G3F RD3A 4 in G4F R D2A 7 2 Chapter 7 FUNCTION BLOCKS 7 2 2 Reading the Detected Temperature Value of the Module Array Type G3F RD3A RTD3ARD 4 2 RTD2ARD The Array type temperature conversion value reading function block executes all channels of the RTD input module in a batch processing If a channel is enabled then the function block outputs the detected temperature value and its digital conversion value that is usable as a PV the PID control module Function 3 NS Block lO Variable Type Descriptions G3F RD3A BOOL Function block execution request area RTD3ARD Used to request an execution of the reading function block If the conditions connected with this area are established while the program is running and 0 changes into 1 the reading function block is executed BASE USINT Base location No Used to write the number of the base where the RTD input module is loaded Setting range GM1 series 0 31 GM2 series 0 7 GM3 4 series 0 3 SLOT USINT Slot location No
30. icating the run channel Slot NO Turns On when error occurs during initialization function atthe used channel block execution Line 3 TEMP CHO TEMPE ifyi RATUR Specifying ubed Channel No deteted temperature value of channel 0 Line 4 PT100 SCAL CHO_DIGIT Specifying type of TMR AL Displaying the digital conversion Line 5 value of channel o S ee ius READY when the temperature value read through channel 0 is a negative Line 6 number and the temperature value of the negative temperature value E number is converted into positive 00 2 0 Line 7 Line 8 Line 9 Line 10 OUT F TEMPE RATURE Line 11 Line 12 INT TO DINT Line 13 _ RATURE Line 15 RTD RD RTD3RD REQ DONE RTD_INI RTOGINI DONE RTD READY Turns ON when the function blocks off the RTD input In this program The data type of the detected temperature value is integer so that it is converted into a BCD data type to be displayed to the digital BCD value is output Q0 1 0 to 00 1 19 8 2 Chapter 8 PROGRAMMING 5 Setting the initial values of I O variables 1 specifying channel This denotes 8 channels Select this and this screen appears Select this and this screen appears Channel No To select the previous channel To select the next channel
31. ify the type of the RTD or use the temperature within the range 200 0 600 0 18 Fix the A disconnection between RTD input module and RTD Or Fix the A and B disconnection 7 7 Chapter 8 PROGRAMMING Chapter 8 PROGRAMMING 8 1 A Program for Output of the Detected Temperature Value as a BCD Value 1 System Configuration GM3 GM3 G3F 630 G3Q PA1A CPUA RD3A RY4A RY2A The lamp tums on when the detected temperature value is negative BCD digital display 00 1 0 00 1 19 Displaying the detected temperature value 2 Initial Settings 1 Specifying the used channel channel 0 2 Specifying the type of the RTD Pt 100 3 Descriptions of the Program The present A D conversion value of the detected temperature value which is detected from the temperature measuring resistor Pt 100 is displayed on the BCD digital display by use of channel 0 of the temperature measuring resistor input module The lamp turns on when the detected temperature value is a negative number and turns off when itis a positive number 8 1 Chapter 8 PROGRAMMING 4 Program Line 0 Line 1 0 5 RTD STATO STATI RTD STAT module Specifying loaded base No Indicating the error status during Base NO Indicating the error ste initialization function block during reading function execution block erecution Line 2 0 SLOT ACT RTD ACTO ALM ALARM Specifying loaded slot No Ind
32. industry 2 Pollution degree It indicates a standard of operating ambient pollution level The pollution degree 2 means the condition in which normally only con conductive pollution occurs Occasionally however a temporary conductivity caused by condensation shall be expected 2 1 Chapter 2 SPECIFICATIONS 22 Performance Specifications Table 2 2 shows performance specifications of the RTD input module Specifications Item G3F RD3A G4F RD2A Pt 100 J IS C1640 1989 DIN 43760 1980 J Pt100 KS C1603 1991 J IS 1604 1981 Pt100 200 0 to 600 C 18 48 to 313 59Q JPtl00 200 0 C to 600 C 17 14 to 317 280 Digital conversion value 0 to 16 000 Connectable RTD Temperature input range Digital output Detected temperature value 2000 to 6000 one digit after point X 10 Each of three wires at every channel has detection Buffer memory function Accuracy 0 5 full scale Maximum conversion speed 50 per channel Number of temperature input device points 8 channels per module 4 channels per module Photo coupler insulation between the input terminal and Insulation method the PLC power supply non insulation between channels Connection terminal block 38 point terminal block 20 point terminal block Internal current consumption 0 5A 0 45A Weight 630g 350g Output of the temperature LED display conversion value and error code Tab
33. l Settings 1 Specifying the used channel channel 0 2 Specifying the type of a temperature measuring resistor Pt 100 3 The Expression that Converts the Detected Temperature Value into a Fahrenheit Detected temperature value real temperature value x 10 Fahrenheit temperature realtemperature x 1 8 32 Detected Ewa value x18 432 Detected temperature value x 18 320 10 2 the Fahrenheit temperature displayed on the BCD digital display is represented as the real Fahrenheit temperature x 10 the detected temperature x 18 320 be processed into the program 4 Descriptions of the Program 1 If 10 0 0 turns on then the initialization of the RTD input module is executed 2 The detected temperature value is displayed on Q0 2 0 to Q0 2 19 of the BCD digital display when itis negative the ramp 00 3 2 turns on 3 The detected temperature value is converted into a Fahrenheit temperature value and displayed on Q0 4 0 to Q0 4 19 of the BCD digital display when it is negative the ramp 00 3 0 turns on 4 If disconnection is detected during temperature conversion at channel 0 The Lamp Q0 3 1 turns on 8 6 Chapter 8 PROGRAMMING 5 Program 0 00 _ READ DONE RTD3RD INITIAL READ ndicating the error Line 0 1 1 Indicat REQ DONE status during Initialization Request during reading function Line 1 comma
34. le 2 2 Performance Specifications 2 2 2 SPECIFICATIONS 23 Names of Parts and Functions The following gives names of parts 231 G3F RD3A The following gives the names and functions of each part of the G3F RD3A G3F Descriptions RUN LED It displays the operating status of G3F RD3A module On Normal Operation e Flickering Error occurred For more information see Chapter 4 1 e Off DC 5V disconnection or the G3F RD3A module error LED display Detected temperature value indication Indication the temperature conversion value of the channels enabled by the channel selection switch The detected temperature value is represented as 5 digit decimal number Down to one place of a decimal number is represented as a floating port number Representation range 210 0 C to 610 0 C Representation example 123 4 C 11213 14 e Error No display rightmost one digit displays the rr number of error Stop Indication This appears if a channel specified by the channel selection switch is not specified as the used channel in the program Channel selection switch Used to specify the channel for detected temperature value indication Setting range 0 to 7 8 to F are not used 2 3 2 SPECIFICATIONS 2 3 2 G4F RD2A The following
35. nd Tar 0 STATO function block execution 0 STAT RD STA block execution inputmodule when it Loaded Base No urns On Lie 2 DINE acto ae ALARM sia Sennen id Line 3 RTD CH 2 0 emperature value sed function block execution Used of channel 0 channe SCALEO The digital Line 4 5 conversion value of 0 Line 5 READ DONE ALARM Line 6 The Tums On temperature when error is Line 7 detection is detected normally the used finished channel Line 8 the RTD 00 3 2 turns on when the input module detected temperature value of centigrade is negative and the Line 9 B M is converted E i positive Line 10 00 3 2 Line 11 Line 12 Line 13 this toune the data of the i detected temperature value 5 Line 14 integer so that it is covered into i dan type to be APA tie i digital BCD value is output 00 2 0900219 Line 16 This routine Line 17 t READ DONE temperature valig H into a value 0 Line 18 Fahrenheit Line 19 Line 20 Line 21 Q0 3 0 turns On when the temperature Line 22 merted into of Fahrenheit and a ative is converted into a positive p 00 3 0 Line 23 Line 24 Line 25 3 In this routine the data type of the Line 26 NT TO DNI detected temperature value is a nteger so that covered A BCD data type to be displayed to Line 27 EN
36. ring be sure to check any foreign matter like wire scraps should not enter into the upper side ofthe PLC If any foreign matter has entered into it always eliminate it 4 Do notload or unload the module while the power supply is being connected 3 1 Chapter 3 INSTALLATION AND WIRING 3 22 Wring Precautions 1 When connecting Pt with the RTD input module refer to the Chapter 2 5 for wiring 2 Be sure to separate the external input signal of the RTD input module from an alternating current so that surge or induction noise generated from the alternating current could not effect 3 When wiring locating this unit too near from high temperature generating devices or materials or contacting it with the material like oil can cause short circuit and occur damage or disorder 4 When wiring to the terminal block wiring with high pressure wire or power supply wire can occur flow inhibition and cause disorder or malfunction 5 Make sure that electric wires do not pass before the LED display It causes the digital values not to be identified 3 2 Chapter 4 TROUBLESHOOTING Chapter 4 TROUBLESHOOTING The followings explain errors that could occur during operating the RTD input module and their troubleshooting 41 Errors Indicated by RUN LED Flickering Errors indicated by the flickering RUN LED of RTD input module are given below RUN LED Status Descriptions G3F RD3A LED display Remark Flickering WDT e
37. rror cycle 0 1 sec Flickering System error Erro Flickering A D conversion error Err3 cycle 0 6 sec Flickering A disconnection detected Err4 cycle 1 0 sec B disconnection detected Err5 The data before b disconnection detected Err6 error has Outside the upper or lower Err7 occurred is bound of the range maintained C cycle 0 2 sec Internal memory error Em2 C e C Chapter 4 TROUBLESHOOTING 4 2 Troubleshooting Procedure 4 2 1 RUN LED Flickering RUN LED flickering RUN LED flickering with 0 1 sec cycle Err 0 is displayed in the LED display Only G3F RD3A RUN LED flickering with 0 2 sec cycle 1 or Err 2 is displayed in the LED display RUN LED flickering with 0 6 sec cycle Err 3 is displayed in the LED display Only G3F RD3A RUN LED flickering with 1 sec cycle One of Err4 Err5 E rr6 and Err7 is displayed Only G3F RD3A Disconnection is detected between the temperature measuring register and RTD input module or temperature is outside the range 200 0 C 600 0 See GM Section 12 See Section 4 2 5 4 2 2 RUN LED Off D The RTD input module is correctly loaded on the base unit m Load correctly the input module on the base unit The capacity of the power supply module on the base unit is sufficient Re examine system configuration with calculating the consumption current of each
38. s a PV in the PID control module Function Block Variable Descriptions REQ Function block execution request area G3F Used to request an execution of the reading function block If the conditions connected with this area are established while the program is running and changes into 1 the reading function block is executed Base location No Used to write the number of the base where the RTD input module is loaded Setting range GM1 series 0 31 GM2 series 0 7 GM3 4 series 0 3 Slot location No Used to write the number of the slot where the RTD input module is loaded Setting range 0 7 Area for specifying the used channel Settings G3F RD3A 0 to 7 G4F RD2A 0 to 3 Function block execution complete status is output when the reading function block is finished with no error and 1 remains until next execution If an error occur 0 is displayed and the operation enters into the stop state Error status indication area Used to output the number of an error when it occurs during reading function block execution G4F RD2A For description of errors see GM Section 7 4 Run channel error indication area 1 is output if error occurs for each run channel Detected temperature value output area The CPU module reads the detected temperature value 200 0 C to 600 0 C of the corresponding channel from the RTD input module and outputs it to this
39. t temperature velocity pressure and flow is called analog value For example temperature changes continuously with time as shown in Fig 1 1 The PLC can process that continuous changeable temperature by use of the RTD input module 1 2 2 D Digital Value In Fig 1 2 the number of man can be counted as 0 1 2 3 The non continuous changeable value as such is Called a digital value On and Off signals can be denoted as a digital value 0 and 1 respectively x 70 A Analog value cannot be directly input to the CPU Digital module for digital processing Therefore analog value gt gt should be converted into a digital value to be input to JL the CPU module In addition for external output of analog value digital value of the CPU module should 2 converted into analog value 4 20 Fig 1 3 Processing the PLC 1 2 3 Pt This is a sensor that detects temperature as the type of resistance The Pt 100 outputs the resistance value of 100 00 for the temperature of 0 C 1 24 Burn out Function If a part of the connected RTD or cable is disconnected the out of range voltage is input by the internal burn out circuit and the connection or disconnection is detected 1 2 2 SPECIFICATIONS Chapter 2 SPECIFICATIONS 2 1 General Specifications Table 2 1 shows general specifications of the GLOFA GM series
40. tion indication area If error occurs during initialization function block execution 1 is output and the module enter into the stop state 1 remains during the scan where the execution condition is being satisfied and it changes into 0 at the next scan Error status indication area Used to output the number of an error when it occurs during reading function block execution For description of errors see GM Section 7 4 Run channel status indication area After the initialization function block is finished with no error 1 is output if the channel is in normal state But 0 is output for the disabled channels REMARK Note 1 The numbers of Array are 8 in G3F RD3A 4 in G4F RD2A 7 5 Chapter 7 FUNCTION BLOCKS 7 3 2 Reading the Detected Temperature Value of the Module G3F RD3A RTDR3RD G4F RD2A RTDR2RD The module temperature conversion value reading function block specifies the location No of the slot where the communication module loaded in the receiving station the station No of the communication module loaded in the remote 1 0 station If also processes all channels in block The enabled channel outputs the temperature conversion value and its digital conversion value that can be used as the PV in the PID control module and the two values are used in the program feng JO Variable Descriptions BOOL Function block execution request area atthe asc
41. un channel enable disable and the type of RTD for use in program Function Gard Block JO Variable Type Descriptions Function block execution request area Used to request an execution of the initialization function block MI IN REQ BOOL If the conditions connected with this area are established while program is running and input condition changes from low to high the initialization function block is executed Base location No BASE USINT Used to write the number of the base where the RTD input module is loaded Setting range GM1 series 0 31 GM2 series 0 7 GM3 4 series 0 3 Slot location No SLOT USINT Used to write the number of the slot where the RTD input module is loaded Setting range 0 7 BOOL Run channel enable disable specification CH Array Used to enable or disable a channel for run Note 1 Specify 1 for enabling and 0 for disabling BOOL Specifying the type of RTD for use Used to specify the type of 0 for Pt100 and 1 for Pt100 for each channel TYPE Array 0 100 Note 1 RD2A RTD2INI 1 J Pt100 Function block execution complete status 1 is output when the initialization function block is finished with no error and 1 remains until next execution If an error occur 0 is displayed and the operation enters into the stop state Error status indication area Used to output the number of an error w
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