paxcdc40 - Tuncell
Contents
1. 40033 bit 10 Term Max Poll RATE 40033 bit 11 RTC Date 40033 bit 11 Term Min Poll SFA 40033 bit 12 SP3 40033 bit 12 Term SP1 Poll SFB 40033 bit 13 SP4 40033 bit 13 Term SP2 Poll SFC I SP1 Off 40033 bit 14 Term SP3 Poll LDA 40033 bit 14 40033 bit 15 SP2 Off 40033 bit 15 Term SP4 Poll LDB 40034 bit 0 SP3 Off 40034 bit 0 Term AOR Poll LDC 40034 bit 1 SP4 Off 40034 bit 1 Term CSR Poll MMR 40034 bit 2 MMR 40034 bit 2 Response Delay Response Delay 40034 bit 3 Response Delay 40034 bit 3 Term CNT A 40041 bit 0 Term Timer 40041 bit 0 Term CNT B 40041 bit 1 Term Count 40041 bit 1 Term CNT C 40041 bit 2 Term RTC Time 40041 bit 2 Term Rate 40041 bit 3 Term RTC Date 40041 bit 3 Term Min 40041 bit 4 Term SP1 40041 bit 4 Term Max 40041 bit 5 Term SP2 40041 bit 5 Term SFA 40041 bit 6 Term SP3 40041 bit 6 Term SFB 40041 bit 7 Term SP4 40041 bit 7 Term SFC 40041 bit 8 Term SP1 Off 40041 bit 8 Term LDA 40041 bit 9 Term SP2 Off 40041 bit 9 Term LDB 40041 bit 10 Term SP3 Off 40041 bit 10 Term LDC 40041 bit 11 Term SP4 Off 40041 bit 11 Term SP12. 40041 bit 12 Term Time Start 40041 bit 12 Term SP2 40041 bit 13 Term Count Start 40041 bit 13 Term SP3 Term Time Stop 40041 bit 14 Term SP4 40041 bit 14 40041 bit 15 Term Count Stop 40041 bit 15 Term AOR 40042 bit 0 Term MMR 40042 bit 0 Term MMR 40042 bit 1 Term Day 40042 bit 1 Term SOR 40042 bit 2 Term SOR 40042 bit 2 COIL DESCRIPTIONS Coils 1 4 Output Coils These coils are used to read or change the states of the Setpoint Outputs To change the state of the output s the output s must be in manual mode Refer to the CSR or MMR SOR registers in the Manual Mode Description section Coils 5 10 Reset Coils These coils are used to perform the Reset command for the values listed Forcing the coil on causes the appropriate value in the unit to be reset The coil is cleared after the command is executed therefore the coil value read will always be 0 zero Coils 11 29 Polling Coils The MODBUS card is continually requesting values from the PAX unit The polling bit coils determine what values are requested during each loop Setting the coils to 1 enables the card to poll that particular value A 0 value disables it Turning polling coils off allows the user to request fewer values and therefore decreases the internal loop time which allows the values that are polled to be updated more often
3. Bulletin No PAXCDC4 E Drawing No LP0502 Released 8 07 Tel 1 717 767 6511 Fax 1 717 764 0839 www redlion net MODEL PAXCDC MODBUS OUTPUT OPTION CARD DESCRIPTION This product bulletin covers the MODBUS Communication Card for the PAX Setpoints and Reset Values via MODBUS RS485 communication in the RTU Meters The card will allow the PAX Meter to transmit Display Values and ASCII modes INSTALLING AN OPTION CARD Caution The option and main circuit cards contain static TOP VIEW A N sensitive components Before handling the cards discharge static charges from your body by touching a grounded bare metal object Ideally handle the cards at a static controlled clean workstation Also only handle the cards by the edges Dirt oil or other contaminants that may contact the cards can adversely affect circuit operation Alignment Slots Remove all power to the meter AND load circuits before Main accessing the unit VY Circuit Warning Exposed line voltage exists on the circuit boards 1 Remove the main assembly from the rear of the case Squeeze the finger Board holds on the rear cover or use a small scewdriver to depress the side latches to release it from the case It is not necessary to separate the rear cover from the main circuit card Locate the option card connector for the type of option card to be installed Hold the unit by the rear connector not the disp
4. Read Write 40037 AOR 2 RTC Day Read Write 40038 SOR SOR Read Write 40039 Reset Reset Read Write 40040 40041 Terminate1 Terminate1 Read Write 40042 Terminate2 Terminate2 Read Write HOLDING SETTING SETTING SETTING REGISTER PAXI PAXCK PAXTM ACCESS 40001 CTA HI Timer HI Read Write 40002 CTA LO Timer LO Read Write 40003 CTB HI Counter HI Read Write 40004 CTB LO Counter LO Read Write 40005 CTC HI RTC Time HI Read Write 40006 CTC LO RTC Time LO Read Write 40007 RTE HI RTC Date HI Read Write 40008 RTE LO RTC Date LO Read Write 40009 Min HI SP1 HI Read Write 40010 Min LO SP1 LO Read Write 40011 Max HI SP2 HI Read Write 40012 Max LO SP2 LO Read Write 40013 SFA HI SP3 HI Read Write 40014 SFA LO SP3 LO Read Write 40015 SFB HI SP4 HI Read Write 40016 SFB LO SP4 LO Read Write 40017 SFC HI SP1 Off HI Read Write 40018 SFC LO SP1 Off LO Read Write 40019 LDA HI SP2 Off HI Read Write 40020 LDA LO SP2 Off LO Read Write 40021 LDB HI SP3 Off HI Read Write 40022 LDB LO SP3 Off LO Read Write COIL TABLE PAX PAXI COIL ADDRESS COIL NUMBER COIL NAME MIRROR REGISTER COIL NAME MIRROR REGISTER PAXCK SP1 Output 40021 bit 0 SP1 Output 40038 bit 0 COIL NAME SP1
5. in the setpoint location means the output is inactive and a 1 means the output is active In Automatic Mode See MMR Description the meter controls the setpoint output state In Manual Mode writing to this register will change the output state The bit position definitions are bit 0 SP1 bit 1 SP2 0 Output off bit 2 SP3 1 Output on bit 3 SP4 Examples 1 Turn all outputs on Value to write to holding register 40038 000Fh 2 Turn outputs 1 3 on Value to write to holding register 40038 0005h 3 Turn all outputs off Value to write to holding register 40038 0000h AOR Analog Output Register Not PAXCK The Analog Output Register controls the analog output of the meter The manual mode must first be engaged by setting bit 4 of the CSR PAX or bit 0 of the MMR PAXI The range of values of this register is 0 to 4095 which corresponds to 0 mA 0 V and 20 mA 10 V respectively If a value larger than 4095 is written to the AOR register 4095 will be loaded The table lists correspondence of the output signal with the register value Reamer Van Output Signal egister Value S L Imai Yw Due to the absolute accuracy rating and resolution of the output card the actual output signal may differ 0 15 FS from the table values The output signal corresponds to the range selected 20 mA or 10 V Writing to this register while the meter is in the manual mode causes the output signal to upd
6. those expressly contained herein The Customer acknowledges the disclaimers and limitations contained herein and relies on no other warranties or affirmations Red Lion Controls BV Printerweg 10 NL 3821 AD Amersfoort Tel 31 0 334 723 225 Fax 31 0 334 893 793 Red Lion Controls AP 31 Kaki Bukit Road 3 06 04 05 TechLink Singapore 417818 Tel 65 6744 6613 Fax 65 6743 3360
7. If a MODBUS read is issued for any value that value is automatically updated to the latest value regardless of whether the polling bit is on or off On power up all values are updated regardless of Polling bit settings Polling coil values are saved in EPROM memory Factory settings is on for all Polling coils TYPICAL UPDATE TIMES PAX PAXI PAXCK All values 19 900 msec 10 values 480 msec All values 10 1 15 sec 5 values 500 msec 1 value 100 msec 5 values 230 msec 1 value 52 msec Update time is the typical time to update the internal memory provided no MODBUS requests are incoming Coils 21 29 PAX Coils 31 49 PAXI PAXCK Terminating Coils This set of coils determines what terminating character is sent to the PAX meter when a write command is executed If the flag is 0 a is used as the terminating character and the value is not saved to EPROM memory in the PAX If the flag is 1 an is used as the terminating character and the value is saved to E PROM memory in the PAX Coil 30 Response Delay When a write command is issued the new value is written to the PAX If the coil is off the MODBUS write response is not issued until the value is read back from the PAX For MODBUS reads if a polling coil is off the response is not issued until the latest value is read back from the PAX If the coil is set on the MODBUS response is issued as soon the received command is complete The writ
8. OLD REGISTER FUNCTIONS FC03 Read Holding Registers FCO06 Preset Single Register FC16 Preset Multiple Registers 1 Valid register address are 40001 40039 40041 40042 41001 41010 Up to 16 registers can be requested at one time Block starting point can not exceed the register boundaries Holding registers are a mirror of Input registers FC04 Unused registers will return a value of HEX lt 8000 gt If a register is implemented but does not exist for a particular unit configuration such as SP3 SP4 a value of HEX lt 0000 gt will be returned Registers 41001 41010 contain the slave ID See FC17 8 Broadcast write is supported for FC06 amp FC16 Register writes using address 0 will be recognized by the MODBUS card regardless of address DIP switch setting G Lh ELM LA N PAX MANUAL MODE DESCRIPTION CSR Control Status Register 40021 The Control Status Register is used to directly control the meter s outputs setpoints and analog output or view the state of the setpoint outputs and the status of the temperature sensor PAXT only The register is bit mapped with each bit position within the register assigned to a particular control function The control functions are invoked by writing to each bit position The bit position definitions are bit 0 SP1 Output bit 1 SP2 Output bit 2 SP3 Output bit 3 SP4 Output bit 4 Manual Mode 0 automatic mode bit 5 Always stays 0 ev
9. Output MIRROR REGISTER 40038 bit 0 SP2 Output 40021 bit 1 SP2 Output 40038 bit 1 SP2 Output 40038 bit 1 SP3 Output 40021 bit 2 SP3 Output 40038 bit 2 SP3 Output 40038 bit 2 SP4 Output 40021 SP4 Output 40038 bit 3 SP4 Output 40038 bit 3 Reset Max 40018 bit 2 Reset Max 40039 bit 2 Reset Min 40018 bit 3 bit 3 Reset Min 40039 bit 3 Reset CNT A 40039 bit 7 Reset Timer 40039 bit 7 Reset CNT B 40039 bit 6 Reset Counter 40039 bit 6 Reset CNT C 40039 bit 5 OO Ol Jl OD a AJOJN Reset Total oO Poll Input Poll CNT A 40033 bit 0 Timer 40033 bit 0 Poll Total Poll CNT B 40033 bit 1 Counter 40033 bit 1 Poll Max Poll MAX 40033 bit 2 SP2 40033 bit 2 Poll Min Poll MIN 40033 bit 3 I SP1 40033 bit 3 Poll SP1 Poll SP1 40033 bit 4 Timer Start 40033 bit 4 Poll SP2 Poll SP2 40033 bit 5 Counter Start 40033 bit 5 Poll SP3 Poll SP3 40033 bit 6 Timer Stop 40033 bit 6 Poll SP4 Poll SP4 40033 bit 7 Counter Stop 40033 bit 7 Poll AOR Poll AOR 40033 bit 8 Day 40033 bit 8 Poll CSR Poll SOR 40033 bit 9 I SOR 40033 bit 9 Term Total Poll CNT C 40033 bit 10 RTC Time
10. at power up will be 40009 SP1 HI Read Write ignored The TRX Delay value is stored in EPROM memory On power up 2 40010 SP1 LO Read Write the calculated value is compared to the value read back from the E PROM The greater of the 2 values will be used as the TRX Delay value and will be aaa SP2 I ee written to the TRX Delay register 40012 SP2 LO Read Write 4 Numeric data is limited to value 19999 to 99999 40013 SP3 HI Read Write 5 Numeric data is limited to the value listed for that parameter according to the 40014 SP3 LO Read Write meter s literature 40015 SP4 HI Read Write 40016 SP4 LO Read Write 40017 Polling1 Read Write 40018 Reset Read Write 40019 TRX Delay Read Write 40020 AOR 2 Read Write 40021 CSR Read Write 40022 Terminate1 Read Write HOLDING SETTING SETTING SETTING REGISTER PAXI D PAXCK PAXTM ACCESS 40023 LDC HI SP4 Off HI Read Write 40024 LDC LO SP4 Off LO Read Write 40025 SP1 HI Timer Start HI Read Write 40026 SP1 LO Timer Start LO Read Write 40027 SP2 HI Counter Start HI Read Write 40028 SP2 LO Counter Start LO Read Write 40029 SP3 HI Timer Stop HI Read Write 40030 SP3 LO Timer Stop LO Read Write 40031 SP4 HI Counter Stop HI Read Write 40032 SP4 LO Counter Stop LO Read Write 40033 Polling1 Polling1 Read Write 40034 Polling2 Polling2 Read Write 40035 TRX Delay TRX Delay Read Write 40036 MMR MMR
11. ate immediately While in the automatic mode this register may be written to but the output will not update until the meter is placed in manual mode Examples 1 Set output to full scale Value to write to holding register 40020 PAX or 40037 PAXI OFFFh 4095 2 Set output to zero scale Value to write to holding register 40020 PAX or 40037 PAXI 0000h 0 HOLDING REGISTERS Values less than 65 535 will be in LO word Values greater than 65 535 will continue into HI word Negative values are represented by two s complement of the combined HI word and LO word HOLDING SETTING See Coil Table for register mapping and Coil Descriptions for functionality REGISTER PAX ACCESS 40001 Input HI Read On Notes P y 1 Any registers marked with are unused and will return a value of HEX 40002 Input LO Read Only lt 8000 gt 40003 Total HI Read Only 2 If a value larger than 4095 is written to the AOR register 4095 will be 40004 Total LO Read Only loaded 40005 Min HI Read Only 3 TRX delay is the minimum time from the reception of the last character in n Mirto GE the MODBUS Query until the response is started The minimum delay value E in LO coun is equal to 2 character times 2 msec min The user can increase the delay 40007 Max HI Read Only time by writing to the TRX Delay register Any value written to the TRX 40008 Max LO Read Only Delay register that is less than the value calculated
12. e coil is saved in E PROM memory Factory setting is on This page intentionally left blank 7 Red Lion Controls 20 Willow Springs Circle York PA 17406 Tel 1 717 767 6511 Fax 1 717 764 0839 LIMITED WARRANTY The Company warrants the products it manufactures against defects in materials and workmanship for a period limited to two years from the date of shipment provided the products have been stored handled installed and used under proper conditions The Company s liability under this limited warranty shall extend only to the repair or replacement of a defective product at The Company s option The Company disclaims all liability for any affirmation promise or representation with respect to the products The customer agrees to hold Red Lion Controls harmless from defend and indemnify RLC against damages claims and expenses arising out of subsequent sales of RLC products or products containing components manufactured by RLC and based upon personal injuries deaths property damage lost profits and other matters which Buyer its employees or sub contractors are or may be to any extent liable including without limitation penalties imposed by the Consumer Product Safety Act P L 92 573 and liability imposed upon any person pursuant to the Magnuson Moss Warranty Act P L 93 637 as now in effect or as amended hereafter No warranties expressed or implied are created with respect to The Company s products except
13. en if 1 is sent 0 output off bit 6 Sensor Status PAXT only 1 output on 0 sensor normal 1 sensor fail bit 7 Always stays 0 even if 1 is sent 1 manual mode In Manual Mode the setpoint outputs are defined by the values written to bits b0 b1 b2 b3 and the analog output is defined by the value written to the AOR Internal control of these outputs is then overridden In automatic mode the setpoint outputs can only be reset off MMR Auto Manual Mode Register 40036 PAXI PAXCK This register sets the controlling mode for the outputs In Auto Mode 0 the meter controls the setpoint output In Manual Mode 1 the outputs are defined by the registers SOR When transferring from auto mode to manual mode the meter holds the last output value until the register is changed by a write Each output may be independently changed to auto or manual Select values to place in manual mode by writing appropriate value to holding register 40036 The bit position definitions are PAXI PAXCK bit 0 Analog Output bit 0 SP4 bit 1 SP4 o bit 1 SP3 0 Auto Mode bit 2 SP3 0 Auto Mode bit 2 SP2 1 Manual Mode bit 3 SP2 1 Manual Mode ar 3 SP1 bit 4 SP1 Examples 1 Select manual mode for all outputs PAX Value to write to holding register 40021 0010h 2 Select manual mode for all outputs and AOR PAXI PAXCK Value to write to holding register 40036 001Fh OTHER SUPPORTED FUNCTIONS FC04 Returns the same valu
14. es as FC03 except the register number starts with 3 Ex Pax Input Hi is 30001 FC08 Fetch Comm Event Counter The MODBUS response breaks down as follows 010804 lt TOT HI gt lt TOT LO gt lt GOOD HI gt lt GOOD LO gt XX lt CR gt lt LF gt The TOT HI and TOT LO values are the total number of messages that were received that started with the card s address The GOOD HI and GOOD LO are good messages correct address parity and checksum The values are reset on power up and every time the FC08 function is requested FC17 Report Slave ID The following is sent upon FC17 request Unit Address 17 FC code RLC PAX I or 0070 0100 for code version 1 00 16 number of read supported registers 16 number of write supported registers 00 number of registers available for GUID Scratch pad memory checksum of the string The following is the HEX of a PAXI with unit address of 247 lt F7 gt lt 11 gt lt 14 gt lt 52 gt lt 4C gt lt 43 gt lt 2D gt lt 50 gt lt 41 gt lt 58 gt lt 49 gt lt 30 gt lt 30 gt lt 3F gt lt 30 gt lt 01 gt lt 00 gt lt 00 gt lt 10 gt lt 00 gt lt 10 gt lt 00 gt lt 00 gt lt XXK gt lt CR gt lt LF gt XX is the LRC Checksum SOR Setpoint Output Register 40038 PAXI PAXCK This register is used to view or change the states of the setpoint outputs Reading from this register will show the present state of all the setpoint outputs A 0
15. ess and serial set up are set via DIP switches on the MODBUS option card See the DIP switch setting table for more details on these DIP switches For the Unit Address bank the high order bit is switch 1 and the ON position is a 1 the OFF position is a 0 Legal unit addresses are 1 to 247 When a Unit Address of 0 is selected the card responds to Unit Address 1 When a Unit Address of 248 through 255 is selected the card responds to Unit Address 247 PAX METER RECEIVING DEVICE ESN 33K Transmit Enable L pew O A G COMM 4 ToL gt OPTIONAL Terminal Block Connection Figure Not used Not used COMM uj Not used l a 2 w A PAX CONNECTOR Extended Comms Connection Figure For the serial bank the following settings apply FACTORY SETTINGS 1 OFF ASCII ON RTU RT 2 OFF 7 Bits ON 8 Bits 8 Bits 3 OFF None ON Parity No Parity SWITCH SETTINGS AVAILABLE 4 OFF Even ON Odd OFF Baud Rate Baud Rate Baud Rate See Baud Rate Switch Selections BAUD RATE SWITCH SELECTIONS MODBUS SUPPORTED FUNCTION CODES COIL FUNCTIONS FC01 Read Coils FCO05 Force Single Coil FC15 Force Multiple Coils 1 Valid coil addresses are 1 49 2 Block starting point can not exceed coil 49 H
16. lay board when installing an option card Install the option card by aligning the option card connector with the slot Communications py Output in the rear cover The cards are keyed by position with different main Card i i i ral Card board connector locations Be sure the connector is fully engaged and the i i i tab on the option card rests in the alignment slot on the display board Finder i i i 4 Slide the assembly back into the case Be sure the rear cover latches fully dE d N into the case K eee errr Apply the option card label to the bottom side of the meter Do not cover chy Nd l D ih ke sij the vents on the top surface of the meter The surface of the case must be clean for the label to adhere properly Apply the label to the area OM OMM k designated by the large case label 6 See manual for wiring connections and programming procedures Analog Output or Real Time Clock Card Connectors S ar ES Serial Setpoint ww Nn MODBUS SPECIFICATIONS 1 Type RS485 RTU and ASCII MODBUS modes 2 Isolation To Sensor amp User Input Commons 500 Vrms for minute Working Voltage 50 V Not isolated from all other commons 3 Baud Rates 300 to 38400 MAI 4 Data 7 8 bits LABE 5 Parity No Odd or Even a 6 Addresses 1 to 247 7 Transmit Delay Programmable See Transmit De
17. lay explanation ORDERING INFORMATION SERIAL ANALOG SETPOINT CARD REAL TIME CARD CE 5 CARD REAL TIME SARD MODEL DESCRIPTION PART NUMBER LABEL CLOCK CARD LABEL PAX MODBUS Output Card PAXCDC40 LABEL PAXCDC PAX MODBUS Output Card with RJ11 Connector PAXCDC4C RS485 COMMUNICATIONS The RS485 communication standard allows the connection of up to 32 devices on a single pair of wires distances up to 4 000 ft and data rates as high as 10M baud the PAX is limited to 19 2k baud The same pair of wires is used to both transmit and receive data RS485 is therefore always half duplex that is data cannot be received and transmitted simultaneously SERIAL SET UP DIP SWITCH OPERATION Serial port configuration is accomplished through two banks of DIP switches on the MODBUS card The bank of 8 switches sets the Unit Address the bank of 7 switches sets the Serial port parameters ASCII RTU 7 8 bits Parity and Baud rate Changes to the switch settings are only detected on power up of the unit After changing a switch setting power to the unit must be cycled for the new switch setting to take effect S 5 E H Pa TITI TASAS S TERESE Doonnonn og a ON g DDD HD20 TTT TT Tre 123456781234567 UNIT ADDRESS SERIAL SET UP Both unit addr
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