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1. COP Copy File Source N7 449 Dest N N7 410 62 Length 2 COP Copy File Source N7 451 Dest F N7 406 40 Length 11 METER METER CONFIG CONFIG DONE ENABLE N N7 410 60 N N7 410 1 JE O 0 0 METER METER AGA 8 AGA 8 CONFIG CONFIG DONE ENABLE N N7 410 60 N N7 410 1 Sf aN IE U 1 1 METER METER RESET RESET DONE ENABLE N N7 410 60 N N7 410 1 i a a tie as U 3 3 0013 CEND Page 7 Thursday July 08 1999 09 48 54 APPENDIX F Modbus Master Port Example 2100 AGA Modbus Master with Daniels 2251 Analyzer The 2100 AGA revision 1 9 and later has been configured with a Modbus Master port on COM2 of the module Configuration of the port communication parameters is accomplished by editing the MBM CFG file Also included with the unit is a file called MBM CMD This file contains the Modbus Master command configurations instruction the Master driver on what data to read from the Daniels and where to put it in the modules buffer memory Configuring Communications The PCMAIN EXE looks for a file called MBM CFG in the local directory If this file is not found or a problem is encountered in loading the file the EXE file will abort with an error message The MBM CFG may be edited with any dos editor which does not add characters hidden or otherwise to the file We normally use the DOS EDIT command which is provided with DOS 5 0 The structure of the f
2. When a Single Bit Control command is received from a Master the ProSoft module transfers the command immediately to the BTR buffer for the ladder logic to work with The ladder logic must be programmed to look at the BTR buffer decode several words and then take action The BTR buffer definition as it pertains to the Single Bit Control command is WORD DESCRIPTION 0 Control Type 2 Single Bit Control 1 Bit Address 2 Control Action Where CONTROL TYPE Word 0 of the BTR buffer is used to tell the processor the type of Control action has been commanded from the Master When the value is equal to 2 a new Single Bit Control command has been received With simple ladder logic to decode this value the appropriate action can be taken BIT ADDRESS The Bit Address represents the bit which will be acted on within the word addressed in the previous parameter CONTROL ACTION The action commanded by the Master is transferred in this word When the value is a 0 the addressed bit is Revised 3 21 01 Revised 3 21 01 to be reset and when the value is a 1 the addressed bit is to be set Multiple Bit Write Func Code 15 Future When a Multiple Bit Control command is received from a Master the ProSoft module transfers the command immediately to the BTR buffer for the ladder logic to work with The ladder logic must be programmed to look at the BTR buffer decode several words and then take action The BTR buffer definiti
3. 1003 14 Base T Contract base Temperature xxx x Deg F Deg C 1004 15 Base P Contract Base Pressure xxx x PSIA kPa 1005 16 Time Zone Hours behind GMT xx x hrs 1006 17 End of Day Rollover Hours 0 to 23 XX hr 1007 18 Number of Active Meter Runs 1 10 XX 1008 19 Number of Modbus Read Data Blocks XX 1 80 1009 20 Gauge Press to Absolute Press Offset Xx PSIA kPa 1010 21 Modbus Master Read Data Block Cnt XX 1011 Where Flow Calc Control Word Binary pattern This Control Word is used to perform several overall setup functions The active bits have the following meanings Bit 0 1 These bits are not used in 2100 at this time Bit2 Force End of Day Rollover When this bit is set the module executes an End of Day data rollover This forced rollover does not begin a new day but does add the values to the historical data array and reinitializes the daily accumulators for all meter runs The normal End of Day rollover will still occur based on the configured Hour value See Configuration Word 17 The bit must be cleared by the ladder logic or manually 23 24 Bit3 English or Metric Mode Select The Flow Processor support both modes of operation When bit 3 is clear the module will be configured for English units while a 1 is for metric Bit4 Display Mode A text line display mode can be enabled to assist debugging the module s operation under conditions when the module s operation becomes unreliable The bit
4. 2100 AGA Modbus Register Assignments Meter Meter Meter Meter Meter Meter Meter Meter Meter Meter Meter Run Real Time Data 1 2 3 4 5 6 7 8 9 10 N J 60 Status word 1800 1840 1880 1920 1960 2000 2040 2080 2120 2160 NIT 61 Spare Control Status word 1801 1841 1881 1921 1961 2001 2041 2081 2121 2161 F 20 Volumetric Flow Rate 1802 1842 1882 1922 1962 2002 2042 2082 2122 2162 F 21 Energy Flow rate future 1804 1844 1884 1924 1964 2004 2044 2084 2124 2164 F 22 Z AGA 8 Compressibility Factor 1806 1846 1886 1926 1966 2006 2046 2086 2126 2166 F 23 Gas Density flowing TP 1808 1848 1888 1928 1968 2008 2048 2088 2128 2168 F 24 Gas Density Base Conditions 1810 1850 1890 1930 1970 2010 2050 2090 2130 2170 F 25 Spare 1812 1852 1892 1932 1972 2012 2052 2092 2132 2172 Meter Run Summary Data Current Period F 26 Totalized Flow Current 1814 1854 1894 1934 1974 2014 2054 2094 2134 2174 F 27 Totalized Energy Curent 1816 1856 1896 1936 1976 2016 2056 2096 2136 2176 F 28 Average Flow Rate Current 1818 1858 1898 1938 1978 2018 2058 2098 2138 2178 F 29 Average Flowing Pressure Current 1820 1860 1900 1940 1980 2020 2060 2100 2140 2180 F 30 Average Flowing Temperature Current 1822 1862 1902 1942 1982 2022 2062 2102 2142 2182 F 31 Totalized Energy Daily Contract Period 1824 1864 1904 1944 1984 2024 2064 2104 2144 2184 F 32 Time away Current 1826 1866 1906 1946 1986 2026 2066 2106 2146 2186 F 33 On Production Time Cur
5. Revised 3 21 01 51 52 6 2 6 2 6 6 2 7 6 2 8 address and bit condition to the ladder logic Ladder logic in the processor must act upon the data and actually set or clear the bit See Section 5 1 for a more thorough discussion of this command Function Code 6 Single Register Write The module supports the single data register write command The data value and destination address written from the master will be transferred directly to the processor The ladder logic must actively move the data from the BTR buffer to the correct Data Table location in order for the write command to be completed Function Code 15 Multiple Bit Write Future The module supports the multiple bit write command Section 5 1 discusses implementation of this command in detail Function Code 16 Write Multiple Registers The module supports a data register write request from 1 to 60 words in length Note that the actual MODBUS protocol limitation is 125 registers per communications transaction This command will also support the writing of Floating Point data to the PLC In order to write a Floating Point value 2 words per value add 7000 to the desired address and increment the count field 2 words per write to represent the actual number of words Note the limit of 30 Floating Point values due to the word length Reading and Writing Floating Point Data The movement of Floating Point data to and from the 2100 module requires some s
6. he 5 CTS 6 DSR E 5 GND saat 7 GND RS 422 RS 485 CABLE CONFIGURATION Two Wire Mode ProSoft Module Foreign Device 7 RTS 8 CTS 9 TxRxD TxRxD 1 TxRxD TxRxD 5 GND GND RS 422 CABLE CONFIGURATION Four Wire Mode ProSoft Module Foreign Device 7 RTS 8 CTS 1 TxD RxD 2 RxD lt TxD 6 RxD TxD 9 TxD lt RxD 5 GND GND NOTES If communication in RS 422 RS 485 do not work despite all attempts try switching termination polarities Some manufacturers interpret and differently This page intentionally left blank APPENDIX C Gas Viscosity Chart Viscosty cend poet sed 200 ne H H EE EA GEESE Sil 35 Eee SSE LT SE Seek at 3a SWSRE SESS EE opan EE dES 100 200 300 400 500 600 700 B00 900 1000 Temperature F FIG 16 26 Hydrocarbon gas viscosity FEES ER EZZEL 4 Courtesy of Westera Supply Co Tulse APPENDIX D Use Interlink to Connect a Computer Excerpted from Allen Bradley Publication 1771 6 5 100 Dec 1992 Chapter Use Interlnk Software To Connect a Computer What s In This Chapter This chapter contains instructions on using Interlnk software to connect the main module 1771 DSX2 to a host computer For info
7. Last Period Average Flowing Pressure Last Period Average Flowing Temperature Last Period Spare Time away Last Period On Production Time Last Period Sequence Counter Spare Dm Meter Tube ID dm Orifice plate ID AGA 3 K factor AGA 7 spare Meter Run Summary Data Day 9 N A N A N A N A N A N A N A N A N A N A N A Status flags Last Period Status flags word 2 Timestamp Totalized Flow Last Period Totalized Energy Last Period Average Flow Rate Last Period Average Flowing Pressure Last Period Average Flowing Temperature Last Period Spare Time away Last Period On Production Time Last Period Sequence Counter Spare Dm Meter Tube ID dm Orifice plate ID AGA 3 K factor AGA 7 spare Meter Run Summary Data Day 10 Status flags Last Period Status flags word 2 Timestamp Totalized Flow Last Period Totalized Energy Last Period Average Flow Rate Last Period Average Flowing Pressure Last Period Average Flowing Temperature Last Period Spare Time away Last Period On Production Time Last Period Sequence Counter Spare Dm Meter Tube ID dm Orifice plate ID AGA 3 K factor AGA 7 spare Meter Meter Meter Meter Meter Meter Meter Meter Meter Meter 1 2 3 4 5 6 7 8 9 10 2450 2750 3050 3350 3650 3950 4250 4550 4850 5150 2451 2751 3051 3351 3651 3951 4251 4551 4851 5151 2452 2752 3052 3352 3652 3952 4252 4552 4852 5152 2454 2754 3054 3
8. Revised 3 21 01 Transferring the Module Configuration block to the module will force a reset of the communication port In order to initiate the configuration process from the PLC the Block Transfer Write must be setup with a value of 255 in the data buffer s first word the Block ID position Configuration data will follow the Block ID as outlined in the following sections A full listing of the configuration block is contained in Appendix A 1 4 2 1 Slave Port Configuration COM 1 The data to configure the Modbus Slave port COM 1 must be transferred from the PLC to the module The structure of the data is as follows Module Configuration Data Data Modbus Word Description Format Units Address Modbus Slave Configuration 0 Modbus Slave Address N A 1 Parity N A 2 Stop Bits N A 3 Baud Rate N A 4 RTS to TxD delay N A 5 RTS Off Delay N A 6 Input Table Offset N A 7 Output Table Offset N A 8 RTU ASCII Mode Select N A 9 Spare N A Where SLAVE ADDRESS The module s slave address The valid Slave addresses are 1 to 247 PARITY The parity mode to be used by the module is defined by this word as follows 0 No parity 1 Odd parity 2 Even parity STOP BITS The number of stop bits to be used is defined as follows 1 One stop bit 2 Two stop bits BAUD RATE The baud rate at which the module is to operate The baud rate is configured as follows VALUE BAUD RATE 0 300 Baud 21 22 600 Bau
9. 3801 4101 4401 4701 5001 2302 2602 2902 3202 3502 3802 4102 4402 4702 5002 2304 2604 2904 3204 3504 3804 4104 4404 4704 5004 2306 2606 2906 3206 3506 3806 4106 4406 4706 5006 2308 2608 2908 3208 3508 3808 4108 4408 4708 5008 2310 2610 2910 3210 3510 3810 4110 4410 4710 5010 2312 2612 2912 3212 3512 3812 4112 4412 4712 5012 2314 2614 2914 3214 3514 3814 4114 4414 4714 5014 2316 2616 2916 3216 3516 3816 4116 4416 4716 5016 2318 2618 2918 3218 3518 3818 4118 4418 4718 5018 2320 2620 2920 3220 3520 3820 4120 4420 4720 5020 2322 2622 2922 3222 3522 3822 4122 4422 4722 5022 2324 2624 2924 3224 3524 3824 4124 4424 4724 5024 2326 2626 2926 3226 3526 3826 4126 4426 4726 5026 2328 2628 2928 3228 3528 3828 4128 4428 4728 5028 2330 2630 2930 3230 3530 3830 4130 4430 4730 5030 2331 2631 2931 3231 3531 3831 4131 4431 4731 5031 2332 2632 2932 3232 3532 3832 4132 4432 4732 5032 2334 2634 2934 3234 3534 3834 4134 4434 4734 5034 2336 2636 2936 3236 3536 3836 4136 4436 4736 5036 2338 2638 2938 3238 3538 3838 4138 4438 4738 5038 2340 2640 2940 3240 3540 3840 4140 4440 4740 5040 2342 2642 2942 3242 3542 3842 4142 4442 4742 5042 2344 2644 2944 3244 3544 3844 4144 4444 4744 5044 2346 2646 2946 3246 3546 3846 4146 4446 4746 5046 2348 2648 2948 3248 3548 3848 4148 4448 4748 5048 2350 2650 2950 3250 3550 3850 4150 4450 4750 5050 2352 2652 2952 3252 3552 3852 4152 4452 4752 5052 2354 2654 2954 3254 3554 3854 4154 4454 4754 5054 2356 2656 2956 3256 3556 3856 4156 4456 4756
10. Capabilities sees ek ee ee 10 Il MODULE FUNCTIONAL OVERVIEW eise ee ee esse ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee dee ee ee ee ee ee ee 13 3 1 Modbus Slave CommunicatiOnS sesse ees Re ee RA ee ee ke 13 3 1 1 Command Reply Cycle ke RA ke ee ee ee 13 8122 Gommand TYDes EE ee doth DE eee 13 3 1 3 Command Error Checking iis ese ed ee RA ee ke dd ee 14 SA Datdlntedrs ss EE EE N a ED es 14 3 2 Module Memory Layout cccceeeeeeecceeeeeeeeeeeeeecaaeeeeeeeeeeeecaaeeeeeeeeeeeenaaaes 14 3 2 1 Modbus Data MeMOFV iese ees ke AR AA ee ek ee ee ee 15 3 2 2 Communications Configuration MeMOFY ese ee ee 16 3 2 3 AGA Data MeMOFWV iis eke eed Re ee AR AA ee ed ee ee ee ee 16 3 3 PLC Data Transfer Interface sees ee RA ee Re ek de ee ee 16 3 3 1 Writing Data to the 2100 Module iese ke ke 17 3 3 2 Receiving Master Write Commands from the Module 18 IV DATA MOVEMENT PLC TO THE 2100 MODULE esse sesse ee ee ees see ee ee ee ee ee ee ee ee ee ese ee ee 19 4 0 Section OverVieW sesse AR Re ed de ee ek ee ee ed ee ee 19 4 1 Moving Data to Modbus Data Memory Block ID 0 to 19 neen 19 EN Reali Time Clock AE OR OE 20 4 2 Configuring the 2100 Module Block ID 255 ee ee ee 20 4 2 1 Slave Port Configuration COM 1 RA ee 21 4 2 2 Flow Calculation Configuration System Parameters esse 23 4 3 Configuring the Meter Runs Block ID 20 29 ee RA ee 26 4 3 1 Meter Run
11. Configuration Data AGA 3 Diff Pressure 27 4 3 2 Meter Run Configuration Data AGA 7 Turbine Linear Analog Metersircta ft oon Ree Ba es nee a ven IE Ee 30 4 3 3 Real Time Update Data AGA 3 and AGA 7 ee nen 32 4 3 4 AGA 8 Configuration Data ee AR AA ee AA ek ee ee ee ee 34 V DATA MOVEMENT 2100 MODULE TO PLC ee ees see sesse see ee ese ee ee ee ee ee ee ee ee ee ee eek ee ee ee 37 5 0 SBCUOMNOVENIG WESE HEER ER EE ED ea 37 5 1 Modbus Write Commands iese RA ee RA ee dd ee eke ee 37 5 1 1 Register Writes Func Code 6 and 16 ee 37 5 1 2 Single Bit Write Func Code 5 iese AR ee 38 5 1 3 Multiple Bit Write Func Code 15 Future sesse ee ee ee 39 5 2 Module Status Data Read Block ID 0 ee ee RA ee 40 5 2 1 Reading Module Status Data sees ke AR ee 40 5 2 2 Resetting Module Status Data RR ee 41 5 2 3 Module Status Codes ie ee ee ee ee ee ee ee ee ee ee ee ee 41 5 3 Meter Run Results Block ID 20 29 ee RR ee ee 42 5 3 1 Real Time Meter Data iis see dd RA ee Ad ek ee 43 5 3 2 Meter Run Summary Data Current Period iese RR nna 46 5 3 3 Meter Run Summary Data Last Period iese RR RA RR RR RA 48 VI MODBUS SLAVE COMMANDS cccccceceeeeeeceeeeeeecaeeeeeeaeeeeeceaeeeeeseaeeeesecaeeeeseeneeeeseeaas 51 6 1 MODBUS Commands ccccceeeeeecccceeeeeeeeeeeeccaaeeeeeeeeeseecaaaeeeeeeeeeteescaaeeeeees 51 6 1 1 Function Code 1 Read Output Sta
12. ID Description Block Transfer Write data 255 W i sys config i time 20 21 22 23 24 W i loop data structure 10 70 words per meter 25 26 27 28 29 i loop config 31 words i loop update 9 words per aga 8 config 23 words per Spacel7 r time sys data not transferred to ladder space Block Transfer Read Data 20 21 22 23 R f_loop_output 10 40 words per 25 26 27 28 29 space R loop_storage 10 300 words per for 10 days space Internal Working Registers loop_config MAX_LOOP_CNT 70 words per i_space4 loop_update MAX_LOOP_CNT 15 words per sys_config loop calclMAX LOOP CNT 320 words per sys Revision 1 92 Modbus Wrd cnt Start 20 1000 10 1020 70 Run 1 1030 Run 2 1100 Run 3 1170 Run 4 1240 Run 5 1310 Run 6 1380 Run 7 1450 Run 8 1520 Run 9 1590 Run 10 1660 10 1730 40 1740 20 1780 40 400 total Run 1 1800 Run 2 1840 Run 3 1880 Run 4 1920 Run 5 1960 Run 6 2000 Run 7 2040 Run 8 2080 Run 9 2120 Run 10 2160 40 2200 300 Run 1 2240 Run 2 2540 Run 3 2840 Run 4 3140 Run 5 3440 Run 6 3740 Run 7 4040 Run 8 4340 Run 9 4640 Run 10 4940 100 5240 280 10 60 15 1280 30 Modbus Finished 1019 1029 1099 1169 1239 1309 1379 1449 1519 1589 1659 1729 1739 1779 1799 1839 1879 1919 1959 1999 2039 2079 2119 2159 2199 2239 2539 2839 3139 3439 3739 4039 4339 4639 4939 5239 5339 Page 1 2100 AGA Module Block Transfer Buffer Register Map BTW BLOC
13. Integer xx xx Mole 1030 1031 1033 1035 1037 1039 1041 1043 1045 1047 1049 1051 1053 1055 1057 1059 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 to 1099 Page 3 2100 AGA Module Block Transfer Buffer Register Map AGA 7 Turbine Meters BTW BLOCK ID 20 to 29 File Loc NITO F 0 FIT F 2 F 3 FU 4 F 5 F 6 F 7 F 8 F 9 F 10 F 11 F 12 F 13 F 14 N 1 ZZZZ2Z2Z22Z222 SOONBDHRON oO ZZZ22Z22Z222Z2222222222222222 Printed 6 10 98 BT Word 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 Description Meter Configuration Word 0 1 Use PLC Config 1 or User Port Config 0 2 AGA 3 or 7 Flow Calc Select 3 AGA7 Input Type 5 Static pressure upstream 0 or downstream 1 10 Compress Calc Type bit 0 11 bit 1 12 13 Output Value Scaling 0 MCF 1 MMCF 14 Compressible Fluid Flag Yes 1 No 0 15 Dm meter tube pipe ID measured TDm K Factor Spare Spare Spare Density T P Used if Entered selected Density base T P Used if Entered selected Low Flow Cutoff Analog flow rate Scaling Min Value Analog flow rate Scaling Max
14. M MCFD 1818 Float PSIA 1820 Float DEG F 1822 Float rst only on cont rollover 1824 Float Min 1826 Float Min 1828 Float 1830 Float rst only on cont rollover 1832 Float rst only on cont rollover 1834 longint Seconds since 1 1 70 1836 LoopStorage Data Section 2240 2241 Long Int Seconds since 1 1 70 2242 Float M MCF 2244 Float 2246 Float M MCFD 2248 Float PSIA 2250 Float DEG F 2252 Float Sec 2254 Float Min 2256 Float Min 2258 Float 2260 Float 2262 Page 5 BTW BLOCK ID 256 to 266 File Loc F 26 F 27 F 28 F 29 F 30 F 31 F 32 F 33 F 34 F 35 F 36 F 37 Printed 6 10 98 BT Word 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 2100 AGA Module Block Transfer Buffer Register Map Description Totalized Flow Current Totalized Energy Current Average Diff Press Current Average Flowing Pressure Current Average Flowing Temperature Current Time Stamp Current Period Time away Current On Production Time Current Sequence Counter On Production Time Daily Contract Period Totalized Flow Daily Contract Period Totalized Energy Daily Contract Period Revision 1 92 onmium mmmn oat oat oat oat oat ong int oat oat oat oat oat oat M MCF M MBTU M MCFD PSIA DEG F Seconds since 1 1 70 Min Min Page 6 6 10 98 2100 AGA Modbus Register Assignments Description i sys config i time i loop
15. Meter Run material Available selections are Bit Bit 9 8 Description 0 0 304 316 SS 0 1 Monel 1 0 Carbon Steel 1 1 Invalid Compressibility Calculation Type Select These bits allow the user to select the compressibility factor density calculation method for the meter run The available selections are Bit Bit 11 10 Description 0 0 Use USER entered values 0 1 AGA 8 1 0 Invalid 1 1 Invalid Output Value Scaling In AGA 3 calculation this bit determines the Output Flow rate and accumulation scaling factor The changes are reflected in the data returned from the module MCFD and MCF 0 Default in AGA 7 MMCFD and MMCF 1 Not used in AGA 7 Compressible Fluid Flag This bit is used select the fluid type in the AGA 3 calculations Liquid Incompressible 0 Gas Compressible 1 Revised 3 21 01 Revised 3 21 01 Dm Meter Tube Internal Diameter inches mm The entered value represents the Meter Tube Internal Diameter measured at TDm TDm Meter Tube ID Measurement Temp Deg F Deg C The entered value represents the temperature at which the Meter Tube Internal Diameter Dm was measured dm Orifice Plate Internal Diameter inches mm The entered value represents the Orifice Plate Internal Diameter measured at Tdm Tdm Orifice Plate ID Measurement Temp Deg F Deg C The entered value represents the temperature at which the Orifice Plate Internal Diameter dm was measured Viscosity Ba
16. Min value Float PSIA kPa 1055 27 28 Pf Scaling Max Value Float PSIA kPa 1057 29 30 Spare Float 1059 Where Meter Configuration Control Word Binary pattern This Control Word is used to perform control several meter specific setup functions The active bits have the following meanings Bit Description 1 PLC User Config Select This bit determines if the module uses configuration data from the PLC or from the Modbus port This value should be set to a 1 as User configuration through Modbus Port is not enabled in this release PLC Configuration Data 1 User Modbus Config Data 0 Inactive 2 AGA 3 or AGA 7 Flow Calculation Select This bit is used to select the flow measurement equations which will be performed for this meter 30 Revised 3 21 01 Revised 3 21 01 AGA 3 0 Differential Pressure AGA 7 1 Turbine pulses or analog 3 AGA7 Input Type Select Selects if the meter calculation logic will be looking for pulse values or for analog values Pulse 0 example 1771 CFM module Analog 1 4 Disable End of Day Rollover This bit is used to disable the End of Day Rollover that the module executes automatically based on the Real Time Clock and the configured End of Day Hour Enable End of Day Rollover 0 Disable End of Day Rollover 1 10 11 Compressibility Calculation Type Select These bits allow the user to select the compressibility factor density calculation method for the meter run The
17. Modbus data registers The 0 999 registers will be the data that has been written from the PLC and the 1000 registers will be the AGA data space The display context can be changed by selecting one of the following keys Integer Mode h Hex Mode b Binary Mode c Communication Status Screen This screen displays the Modbus slave port status information In addition to receive and transmit counters error status information is also displayed The error status counters can be reset by pressing the key SCREEN UPDATE TIMING The data display routines for the local VGA screen are called every 5 seconds in order to minimize processor loading This automatic update timing can be overridden by simply hitting the Key for the active screen Once one of these keys are pressed the screen update will occur immediately Revised 3 21 01 11 12 This page intentionally left blank Revised 3 21 01 ll MODULE FUNCTIONAL OVERVIEW 3 1 Revised 3 21 01 Modbus Slave Communications The 2100 Flow Processor s Modbus Slave port runs the RTU and ASCII versions of the Modbus protocol This capability allows the module to communicate data to a Modbus Master as available in most SCADA Master packages and vice versa The module supports both point to point implementations as well as multi drop implementations The following discussion centers on the functional capabilities of the Modbus Slave port 3 1 1 3 1 2 Com
18. Reset This bit will toggle after the module has completed resetting the flow accumulators for the meter The module has performed this step as a result of receiving a Meter Reset bit from the Meter Control Word Meter Configuration Status This bit indicates the Configuration status of the meter When set 1 the meter has successfully been configured The following Rollover Status bits are one shot latch bits that indicate the occurrence of an event sometime since the last End of Day Rollover These bits can be used to qualify disqualify flow accumulation values or to explain otherwise inexplicable events These bits are also stored in the Historical Data Stat field for historical purposes Rollover Power Up Module Config Status This bit indicates that a 255 Block ID configuration data block was received and processed from the PLC Rollover Meter Configuration Status This bit indicates that the Configuration Enable bit in the Meter Control Word has been set Rollover AGA 8 Configuration Status This bit indicates that the AGA 8 Configuration Enable bit in the Meter Control Word has been set Rollover Meter Freeze Status This bit indicates that the Meter Freeze bit in the Meter Control Word has been set Rollover Meter Reset Status This bit indicates that the Meter Reset bit in the Meter Control Word has been set Rollover Instrument Fail Status The PLC ladder logic has set the Instrument Fail bit i
19. Value Tf Scaling Min Value Tf Scaling Max Value Pf Scaling Min Value Pf Scaling Max Value Spare Meter Control Word 0 Configuration Enable 1 AGA8 Configuration Enable 2 Meter Freeze 3 Force Meter Reset 15 Instrument Fail Detected Turbine analog real time value Tf Flowing temp real time value Pf Flowing Pressure real time value Turbine frequency high Turbine frequency low Turbine pulse total high Turbine pulse total low Spare AGA 8 Update Control Word 1 Control bit User 0 or PLC 1 2 Control bit BTU Calc Disable Units Future 0 AGAS 1 AGA7 0 Turbine 1 Analog 00 Use entered values 01 AGA 8 Float inches mm Float pulses ft3 Float Float Float Float Ib ft3 kg m3 Float Ib ft3 kg m3 Float Float Float Float Deg F Deg C Float Deg F Deg C Float PSIA kPa Float PSIA kPa Float Set to enable Config words 0 9 Set to enable new AGA 8 values Set to freeze meter Clear to run meter Set to reset meter to 0 Set when detect any instrument failure 0 4095 0 4095 0 4095 0 120 0 999 0 999 0 9999 3 Control bit Fw Factor Calc Enable English Units Only Concentration Mole Methane Concentration Mole Nitrogen Concentration Mole Carbon Dioxide Concentration Mole Ethane Concentration Mole Propane Concentration Mole Water Concentration Mole Hydrogen Sulfide Concentration Mole Hydrogen Concentration M
20. base conditions Compressibility calculation type AGA Report No 8 User entered densities Revised 3 21 01 1 1 2 Static pressure Up Down stream English or Metric units AGA 7 Turbine Meter Gas Flow Measurement Report No 7 1984 Pulse data based on Allen Bradley 1771 CFM module Configurable for analog or pulse signal User configurable parameters Meter K Factor AGA 8 Compressibility Factors Report No 8 1992 Based on Detailed Characterization Method User configurable parameters 21 component gas composition Z Factor recalculation ranges Pres and Temp Independent meter run calculation control and status including Enable and Accumulator Reset Uses PLC Analog Input values or 1771 CFM module and Block Transfer file transfer capabilities to update real time data Modbus Slave port provides read access to all meter run data and calculation results for easy upload to Modbus Master Provides historical status run time and accumulated flow data to PLC Stores 10 days of historical status run time and accumulated flow data for retrieval PCMCIA retrieval to be added in future upgrade Environmental Requirements Operating Temperature 0 to 60 C 32 to 140 F Storage Temperature 40 to 85 C 40 to 185 F Relative Humidity Operating 5 95 non condensing Vibration Operating 10 to 150 Hz 2 g max peak acceleration 0 012 in peak to peak displacement Items included as part of 2100 module The 21 00 product is
21. data space that the Modbus slave will use when responding to Function Code 2 and 4 commands As an example to start the address space at word 150 enter a 150 A Function Code 2 or 4 command with an address of zero will then start reading at word 150 OUTPUT MEMORY START ADDRESS This value defines the offset address into the 1000 word data space that the Modbus Revised 3 21 01 Revised 3 21 01 slave will use when responding to the Function Code 1 command As an example to locate the output image at word 100 enter a 100 A Function Code 1 command with an address of zero will start reading at word 100 RTU ASCII MODE SELECT The module will operate as either an RTU or an ASCII mode slave The following values control the selection Value Mode 0 RTU Mode Default mode 1 ASCII 8 bit Mode 2 ASCII 7 bit Mode 4 2 2 Flow Calculation Configuration System Parameters The Flow Processor must receives certain Meter Run configuration parameters prior to execution This information consists of meter run independent calculation setup data The configuration data received through the 255 Module Configuration is as follows Flow Calculation Configuration Data Modbus Wd Description Format Units Address 10 Flow Calc Control Word 1000 11 Delta T3 for AGA 3 recalc resolution xxx x Deg F Deg C 1001 12 Delta T8 for AGA 8 recalc resolution xxx x Deg F Deg C 1002 13 Delta P8 for AGA 8 recalc resolution XXX X PSIA kPa
22. data structure 10 70 words per meter i loop config 31 words i loop update 9wordsper aga 8 config 23 wordsper Space 7 r time sys data not transferred to ladder space f loop output 10 40 words per space loop _storage 10 300 words pen for 10 days space loop configlMAX LOOP CNT 70 wordspen i space4 loop updatelMAX LOOP CNT 15 words pen sys config loop _calc MAX LOOP CNT 320 words per sys Agamoddt xls Module Configuration 6 10 98 N7 0 N7 1 N7 2 N7 3 N7 4 N7 5 N7 6 N7 7 N7 8 N7 9 N7 10 N7 11 N7 12 N7 13 N7 14 N7 15 N7 16 N7 17 N7 18 N7 19 N7 20 N7 21 N7 22 N7 23 N7 24 N7 25 N7 26 N7 27 N7 28 N7 29 2100 AGA Modbus Register Assignments Module Configuration Modbus Slave Address Parity Stop Bits Baud Rate RTS to TxD delay RTS Off Delay Input Table Offset Output Table Offset RTU ASCII Mode Select Flow Calc Co Pro System Setup Delta T3 for AGA 3 recalc resolution Delta T8 for AGA 8 recalc resolution Delta P8 for AGA 8 recalc resolution Base T Contract base Temperature Base P Contract Base Pressure Time Zone Hours behind GMT End of Day Rollover Hours 0 to 23 Active Meter Runs 1 10 Modbus Read Data Blocks 0 to 80 Gauge Pressure to Absolute Press Offset Modbus Master Read Data Block Count Spare Spare Spare Spare Spare Spare Spare Spare Modbus Address 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 101
23. is being received from the module Steps to Implement Modbus Master The Steps to implement the Modbus Master port capabilities are as follows lis Layout the memory map for the device instrument that the MBM port is going to read data from This map will assist in the development of the commands Edit the MBM CMD file to configure the commands Through this configuration the placement of data from the slave into the MBM memory buffer can be controlled Edit the MBM CFG file to configure the communication parameters for the slave device Add the logic to the PLC ladder to support the decoding of the MBM data block and the movement of data into the PLC data table Set the MNM enable bit in the module configuration word Bit 7 Connect the device to COM2 using either RS232 422 or 485 Set the jumper on the module for the appropriate position Aga5si rsp LAD 4 MBM LADDER Total Rungs in File 2 BLOCK 0 Module Status Read and Modbus Master Data When BTR Block ID is 0 the Modbus Slave Status is available as well as the Modbus Master port data Decode Copying BT Read BT Read Module Done Bit Block ID Status N7 400 EQU COP 0000 JE Equal Copy File 13 Source A N7 410 Source N7 411 20 lt Dest N7 800 Source B 0 Length 5 0 lt Copy MBM Data MBM Block ID Block EQU COP Equal Copy File Source A N7 419 Source N
24. is normally reset to 0 to display the data display screens When set to 1 the text line display mode debug mode is enabled Bit5 Disk Log Mode Future Event logging to the PCMCIA disk is disabled when the bit is reset to 0 When this bit is set the module will log events and data to the PCMCIA disk This data is in a ASCII format and may be extracted for use in other packages Contact the Factory for further information Bit6 Hard Debug Mode This bit causes the module to shut down in the case of a math error This bit will be removed in the future but is currently to be set only when requested by the factory during debug sessions Bit 7 Modbus Master Enable The COMM 2 port on the module can be enabled as a Modbus Master port In this mode the port will execute a series of commands as configured in the MBM CMD file on the PCMCIA card Full documentation on this feature will be provided in later editions of this manual DeltaT3 xxx x Deg F Deg C The DeltaT3 value is used by the module in a Greater Than test to determine when to recalculate the AGA 3 temperature dependent parameters This optimization can be performed with minimum loss on accuracy A value of 0 will cause the recalculation to be performed every time a temperature change is detected The value is entered as an integer with a 0 1 resolution An entered value of 50 means 5 0 to the module DeltaT8 xxx x Deg F Deg C The DeltaT8 value is used by the modul
25. module stores the data from the ladder logic in local memory read requests from the Master can be serviced immediately Write Memory Write commands are sent directly to the PLC bypassing the module s Modbus Data memory The Write Memory shall accept the data received by the slave as the result of a write data command from a Master i e Function Codes 5 6 15 and 16 This memory is a one 1 command buffer in the 2100 module that holds the data until the PLC performs a BTR file read Write data from a master does not go directly into the module s Modbus Data Memory PLC ladder logic must be used to accept the write data and place it in appropriate registers if the master is to be able to read back the data it has written The 2100 module controls the data which is transferred from the module to the PLC The only time valid data is transferred to the ladder logic is when a write command is issued from the Master 15 16 3 3 Section IV and V of this manual provides further information on the data transfer mechanism while Appendix A contains a PLC program showing an example of the logic to transfer data registers to and from the module 3 2 2 Communications Configuration Memory The Communication Configuration Memory contains the parameter data necessary for the module to set up the module s communications port Port 1 on the 2100 module On power up the module will not proceed withou
26. other computer then press ENTER Use the up or down arrow keys to select the serial port to use on the other computer and press Chapter 4 Use Interink to Connect a Computer On the other computer do the following Enter this information to prepare the other computer for accepting the files to transfer 1 Type MODE COM2 2400 n 8 1 p Presa ENTER Type CITY com2 Preas ENTER The status line indicates that this computer is searching for information on COM2 F3eExit Scanning port COM2 The Interlnk server is now copying the following files te the ciient interink will start copying a bootstrap intersvr exe copy program and the two executable intersvr exe files to the other computer The status line shows the precentage complete of the transfer of each file F3 Exit j Sending c intersvr exe 37266 10 When the file transfer is complete both computers retum to DOS Chapter 4 Use Interink to Connect a Computer Interink Commands INTERLNK EXE a device driver that you install in the CONFIG SYS file on the client main module The program is resident on the boot ROM card interlnk client J server Parameter Specifies the letter of the client drive that is redirected to a drive on the server The drive must be one that was redirected when you started Interink Specifies the letter of the drive on the Interink server that wil be redirected serv
27. received from a Master the ProSoft module transfers the command immediately to the BTR buffer for the ladder logic to work with bypassing the module s own Modbus and AGA Memory The ladder logic must be programmed to look at the BTR buffer decode several words and then take action The BTR buffer definition as it pertains to the Momentary and Continuous Control commands is WORD DESCRIPTION 0 Write Type 1 Register Write 1 Count 2 Destination Address 3 62 Write Data 60 contiguous registers 37 38 WRITE TYPE Word O of the BTR buffer is used to tell the processor the type of data which has been written from the Master When the value is equal to 1 a register write Function Code 6 or 16 has been received With simple ladder logic to decode this value the appropriate action can be taken COUNT The number of registers being written by the Master Valid numbers which will be received will range from 1 to 60 Any numbers outside this range will result in a protocol error response from the Slave to the Master DESTINATION ADDRESS This value is used by the ladder logic to determine the address in the processor data in which to start the data write The processor ladder logic must decode this word to determine where to begin locating the data from the Master DATA The data values written from the Master The values will be 16 bit register values and should be placed into an integer file Single Bit Write Func Code 5
28. word The module will support up to 125 words per requests and will support starting bit addresses not on a word boundary 6 1 2 Function Code 2 Read Input Status The slave returns bit data from the data space pointed to by the Input memory start address configuration word The module is subjected to the same operating criteria as outlined in Section 6 1 1 6 1 3 Function Code 3 Read Multiple Registers The module will return up to 125 words of data from anywhere within the module s data space This command will also support the reading of Floating Point data from the module In order to retrieve a Floating Point value 2 words per value add 7000 to the desired address and increment the count field to represent the actual number of words to be retrieved When the module receives a read request addressed above 7000 it will swap the words before returning them to the host This swapping is essential in order to successfully transfer floating point data to many host packages 6 2 4 Function Code 4 Read Input Registers The module returns word data from the data space pointed to by the Input memory start address configuration word The module will return up to 125 words per request 6 2 5 Function Code 5 Single Bit Write This message turns individual bits on or off The Modbus protocol calls for this code to force a bit overriding all other conditions The module is capable only of communicating the write data starting
29. 0 1011 1012 1013 1014 1015 1016 1017 1018 1019 Agamoddtods Module Configuration 2100 AGA Modbus Register Assignments BTW BLOCK ID 0 to 19 Description Modbus Data Registers 0 999 Spare Spare Spare Spare Spare Spare Spare PLC date and time PLC date and time PLC date and time PLC date and time PLC date and time PLC date and time 6 10 98 Agamoddtods Module Configuration 6 10 98 2100 AGA Modbus Register Assignments AGA 3 Differential Pressure Meters N 0 F 0 F 1 F 2 F 3 F 4 F 5 F 6 F 7 F 8 F 9 F 10 F 11 F 12 F 13 F 14 N 1 N 2 N 3 N 4 N 5 N 6 N 7 N 8 N 9 N 10 N 11 N 12 N 13 N 14 N 15 N 16 N 17 N 18 N 19 N 20 N 21 N 22 N 23 N 24 N 25 N 26 N 27 N 28 N 29 N 30 N 31 N 32 N A N A N A N A N A N A N A Meter Configuration Word Dm metertube pipe ID measured TDm TDm metertube measuring temp dm Orifice plate bore measured Tm Tdm Orifice plate measuring temp Visc osity Base Density TP Used if Entered selected Density base T P Used if Entered selected Low Flow Cutoff Diff P Scaling Min Value Diff P Scaling Max Value T Scaling Min Value T Scaling Max Value Pf Scaling Min Value Pf Scaling Max Value Spare Meter Control Word Delta P realtime value T Flowing temp real time value Pf Flowing P
30. 00 AGA Module Block Transfer Buffer Register Map BTR BLOCK ID 20 to 29 File Loc N 60 N 61 F 20 F 21 F 22 F 23 F 24 F 25 F 26 F 27 F 28 F 29 F 30 F 31 F 32 F 33 F 34 F 35 F 36 F 37 NI 62 N 63 F 40 Fa F 42 F 43 F 44 F 45 F 46 F 47 F 48 F 49 F 50 Printed 6 10 98 BT Word 0 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 Description Status word 0 Configuration Done Toggle 1 AGA8 Configuration Done Toggle 2 Meter Freeze Status 3 Meter Reset Done Toggle 5 Meter Configuration Status 10 Rollover Power Up Status 11 Rollover Configuration status 12 Rollover AGA8 Configuration status 13 Rollover Meter Freeze Status 14 Rollover Meter Reset Status 15 Rollover Instrument Fail status Spare Control Status word 0 Last Period Data New Data Status Flag new 1 4 Last Calc Time bad on power up 6 Pulse rate instrument fail underflow 7 Pulse rate instrument fail overflow 8 Pulse total instrument fail underflow 9 Pulse total instrument fail overflow 10 dp pulse analog instrument fail underflow 11 dp pulse analog instrument fail overflow 12 Tf instrument fail underflow 13 Tf instrument fail overflow 14 Pf instrument fail underflow 15 Pf instrument fail overflow Vo
31. 0004 0005 WRITES DATA TO MODBUS SLAVE REGISTERS 0 999 Based on the value in the BTW Block ID either data is moved to the module or configuration parameters are moved to the module To move additional data add a new branch with EQU N7 310 2 and COP N10 100 N7 311 50 DECODES ENCODES BT WRITE BT WRITE DATA BLOCK BLOCK ID GEO MOV Grtr Than or Eal A gt B Move Source A N7 310 Source 0 20 lt 0 lt Source B 22 Dest N7 310 22 lt 20 lt DECODE ENCODES BT READ BT WRITE BLOCK ID BLOCK ID LIM MOV Limit Test Move Low Lim 256 Source N7 410 256 lt 0 lt Test N7 410 Dest N7 310 0 lt 20 lt High Lim 266 266 lt 1ST SCAN ENCODES CONFIG BT WRITE DETECT BLOCK ID N7 309 MOV 4h Move 0 Source 255 255 lt Dest N7 310 20 lt BT READ BT WRITE ENABLE ENABLE N7 400 N7 300 LIM imit Test 15 15 Low Lim 0 0 lt Test N7 310 20 lt High Lim 19 19 lt BT READ BT WRITE ENABLE ENABLE N7 400 N7 300 LIM s f a Limit Test 15 15 Low Lim 0 0 lt Test N7 310 20 lt High Lim 19 19 lt WRITING METER RUN DATA BLOCKS TO 2100 MODULE This rung moves the integer and floating point data for meter runs 1 10 to the 2100 module The actual data files which are pointed to are determined by the range allowed on n7 310 in the ADD rung above BT READ ENABLE N7 400 15 BT WRITE ENABLE N7 300 LI
32. 1 3921 4221 4521 4821 5121 N A Timestamp 2422 2722 3022 3322 3622 3922 4222 4522 4822 5122 N A Totalized Flow Last Period 2424 2724 3024 3324 3624 3924 4224 4524 4824 5124 N A Totalized Energy Last Period 2426 2726 3026 3326 3626 3926 4226 4526 4826 5126 N A Average Flow Rate Last Period 2428 2728 3028 3328 3628 3928 4228 4528 4828 5128 N A Average Flowing Pressure Last Period 2430 2730 3030 3330 3630 3930 4230 4530 4830 5130 N A Average Flowing Temperature Last Period 2432 2732 3032 3332 3632 3932 4232 4532 4832 5132 N A Spare 2434 2734 3034 3334 3634 3934 4234 4534 4834 5134 N A Time away Last Period 2436 2736 3036 3336 3636 3936 4236 4536 4836 5136 N A On Production Time Last Period 2438 2738 3038 3338 3638 3938 4238 4538 4838 5138 N A Sequence Counter 2440 2740 3040 3340 3640 3940 4240 4540 4840 5140 N A Spare 2442 2742 3042 3342 3642 3942 4242 4542 4842 5142 N A Dm Meter Tube ID 2444 2744 3044 3344 3644 3944 4244 4544 4844 5144 N A dm Orifice plate ID AGA 3 K factor AGA 7 2446 2746 3046 3346 3646 3946 4246 4546 4846 5146 N A spare 2448 2748 3048 3348 3648 3948 4248 4548 4848 5148 6 10 98 Agamoddtods Module Configuration 6 10 98 2100 AGA Modbus Register Assignments Meter Run Summary Data Day 8 N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A Status flags Last Period Status flags word 2 Timestamp Totalized Flow Last Period Totalized Energy Last Period Average Flow Rate
33. 10 4910 5210 2511 2811 3111 3411 3711 4011 4311 4611 4911 5211 2512 2812 3112 3412 3712 4012 4312 4612 4912 5212 2514 2814 3114 3414 3714 4014 4314 4614 4914 5214 2516 2816 3116 3416 3716 4016 4316 4616 4916 5216 2518 2818 3118 3418 3718 4018 4318 4618 4918 5218 2520 2820 3120 3420 3720 4020 4320 4620 4920 5220 2522 2822 3122 3422 3722 4022 4322 4622 4922 5222 2524 2824 3124 3424 3724 4024 4324 4624 4924 5224 2526 2826 3126 3426 3726 4026 4326 4626 4926 5226 2528 2828 3128 3428 3728 4028 4328 4628 4928 5228 2530 2830 3130 3430 3730 4030 4330 4630 4930 5230 2532 2832 3132 3432 3732 4032 4332 4632 4932 5232 2534 2834 3134 3434 3734 4034 4334 4634 4934 5234 2536 2836 3136 3436 3736 4036 4336 4636 4936 5236 2538 2838 3138 3438 3738 4038 4338 4638 4938 5238 Agamoddtods Module Configuration APPENDIX B RS 232 and RS 422 485 Cabling Definitions of RS 232C Handshaking Signals Excerpted form Allen Bradley Publication 1785 6 5 2 SIGNAL TITLE DESCRIPTION TXD Transmitted Data Carries serialized data It is an output from the module RXD Received Data RXD is serialized data input to the module RXD is isolated from the rest of the circuitry on the modules RTS Request To Send RTS is a request from the module to the modem to prepare to transmit RTS is turned ON when the module has a message to transmit Otherwise RTS is OFF CTS Clear to Send CTS is a signal from the modem to the module that indicates the carrier is s
34. 253 1323 1393 1463 1533 1603 1673 1045 1115 1185 1255 1325 1395 1465 1535 1605 1675 1047 1117 1187 1257 1327 1397 1467 1537 1607 1677 1049 1119 1189 1259 1329 1399 1469 1539 1609 1679 1051 1121 1191 1261 1331 1401 1471 1541 1611 1681 1053 1123 1193 1263 1333 1403 1473 1543 1613 1683 1055 1125 1195 1265 1335 1405 1475 1545 1615 1685 1057 1127 1197 1267 1337 1407 1477 1547 1617 1687 1059 1129 1199 1269 1339 1409 1479 1549 1619 1689 1061 1131 1201 1271 1341 1411 1481 1551 1621 1691 1062 1132 1202 1272 1342 1412 1482 1552 1622 1692 1063 1133 1203 1273 1343 1413 1483 1553 1623 1693 1064 1134 1204 1274 1344 1414 1484 1554 1624 1694 1065 1135 1205 1275 1345 1415 1485 1555 1625 1695 1066 1136 1206 1276 1346 1416 1486 1556 1626 1696 1067 1137 1207 1277 1347 1417 1487 1557 1627 1697 1068 1138 1208 1278 1348 1418 1488 1558 1628 1698 1069 1139 1209 1279 1349 1419 1489 1559 1629 1699 1070 1140 1210 1280 1350 1420 1490 1560 1630 1700 1071 1141 1211 1281 1351 1421 1491 1561 1631 1701 1072 1142 1212 1282 1352 1422 1492 1562 1632 1702 1073 1143 1213 1283 1353 1423 1493 1563 1633 1703 1074 1144 1214 1284 1354 1424 1494 1564 1634 1704 1075 1145 1215 1285 1355 1425 1495 1565 1635 1705 1076 1146 1216 1286 1356 1426 1496 1566 1636 1706 1077 1147 1217 1287 1357 1427 1497 1567 1637 1707 1078 1148 1218 1288 1358 1428 1498 1568 1638 1708 1079 1149 1219 1289 1359 1429 1499 1569 1639 1709 1080 1150 1220 1290 1360 1430 1500 1570 1640 1710 1081 1151 1221 1291 1361 1431 1501 15
35. 281 1351 1421 1491 1561 1631 1701 1072 1142 1212 1282 1352 1422 1492 1562 1632 1702 1073 1143 1213 1283 1353 1423 1493 1563 1633 1703 1074 1144 1214 1284 1354 1424 1494 1564 1634 1704 1075 1145 1215 1285 1355 1425 1495 1565 1635 1705 1076 1146 1216 1286 1356 1426 1496 1566 1636 1706 1077 1147 1217 1287 1357 1427 1497 1567 1637 1707 1078 1148 1218 1288 1358 1428 1498 1568 1638 1708 1079 1149 1219 1289 1359 1429 1499 1569 1639 1709 1080 1150 1220 1290 1360 1430 1500 1570 1640 1710 1081 1151 1221 1291 1361 1431 1501 1571 1641 1711 1082 1152 1222 1292 1362 1432 1502 1572 1642 1712 1083 1153 1223 1293 1363 1433 1503 1573 1643 1713 1084 1154 1224 1294 1364 1434 1504 1574 1644 1714 1085 1155 1225 1295 1365 1435 1505 1575 1645 1715 1086 1156 1226 1296 1366 1436 1506 1576 1646 1716 1087 1157 1227 1297 1367 1437 1507 1577 1647 1717 1088 1158 1228 1298 1368 1438 1508 1578 1648 1718 1089 1159 1229 1299 1369 1439 1509 1579 1649 1719 1090 1160 1230 1300 1370 1440 1510 1580 1650 1720 1091 1161 1231 1301 1371 1441 1511 1581 1651 1721 1092 1162 1232 1302 1372 1442 1512 1582 1652 1722 1093 1163 1233 1303 1373 1443 1513 1583 1653 1723 1094 1164 1234 1304 1374 1444 1514 1584 1654 1724 1095 1165 1235 1305 1375 1445 1515 1585 1655 1725 1096 1166 1236 1306 1376 1446 1516 1586 1656 1726 1097 1167 1237 1307 1377 1447 1517 1587 1657 1727 1098 1168 1238 1308 1378 1448 1518 1588 1658 1728 1099 1169 1239 1309 1379 1449 1519 1589 1659 1729 Agamoddtods Module Configuration
36. 2858 3158 3458 3758 4058 4358 4658 4958 F 49 Sequence Counter 2260 2560 2860 3160 3460 3760 4060 4360 4660 4960 F 50 Spare 2262 2562 2862 3162 3462 3762 4062 4362 4662 4962 N A Dm Meter Tube ID 2264 2564 2864 3164 3464 3764 4064 4364 4664 4964 N A dm Orifice plate ID AGA 3 K factor AGA 7 2266 2566 2866 3166 3466 3766 4066 4366 4666 4966 N A spare 2268 2568 2868 3168 3468 3768 4068 4368 4668 4968 6 10 98 Agamoddtods Module Configuration 6 10 98 2100 AGA Modbus Register Assignments Meter Run Summary Data Day 2 N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A N A Status flags Last Period Status flags word 2 Timestamp Totalized Flow Last Period Totalized Energy Last Period Average Flow Rate Last Period Average Flowing Pressure Last Period Average Flowing Temperature Last Period Spare Time away Last Period On ProductionTime Last Period Sequence Counter Spare Dm Meter Tube ID dm Orifice plate ID AGA 3 K factor AGA 7 spare Meter Run Summary Data Day 3 N A N A N A N A N A N A N A N A N A N A N A Status flags Last Period Status flags word 2 Timestamp Totalized Flow Last Period Totalized Energy Last Period Average Flow Rate Last Period Average Flowing Pressure Last Period Average Flowing Temperature Last Period Spare Time away Last Period On Production Time Last Period Sequence Counter Spare Dm Meter
37. 288 3588 3888 4188 4488 4788 5088 Meter Run Summary Data Day 6 N A Status flags Last Period 2390 2690 2990 3290 3590 3890 4190 4490 4790 5090 N A Status flags word 2 2391 2691 2991 3291 3591 3891 4191 4491 4791 5091 N A Timestamp 2392 2692 2992 3292 3592 3892 4192 4492 4792 5092 N A Totalized Flow Last Period 2394 2694 2994 3294 3594 3894 4194 4494 4794 5094 N A Totalized Energy Last Period 2396 2696 2996 3296 3596 3896 4196 4496 4796 5096 N A Average Flow Rate Last Period 2398 2698 2998 3298 3598 3898 4198 4498 4798 5098 N A Average Flowing Pressure Last Period 2400 2700 3000 3300 3600 3900 4200 4500 4800 5100 N A Average Flowing Temperature Last Period 2402 2702 3002 3302 3602 3902 4202 4502 4802 5102 N A Spare 2404 2704 3004 3304 3604 3904 4204 4504 4804 5104 N A Time away Last Period 2406 2706 3006 3306 3606 3906 4206 4506 4806 5106 N A On Production Time Last Period 2408 2708 3008 3308 3608 3908 4208 4508 4808 5108 N A Sequence Counter 2410 2710 3010 3310 3610 3910 4210 4510 4810 5110 N A Spare 2412 2712 3012 3312 3612 3912 4212 4512 4812 5112 N A Dm Meter Tube ID 2414 2714 3014 3314 3614 3914 4214 4514 4814 5114 N A dm Orifice plate ID AGA 3 K factor AGA 7 2416 2716 3016 3316 3616 3916 4216 4516 4816 5116 N A spare 2418 2718 3018 3318 3618 3918 4218 4518 4818 5118 Meter Run Summary Data Day 7 N A Status flags Last Period 2420 2720 3020 3320 3620 3920 4220 4520 4820 5120 N A Status flags word 2 2421 2721 3021 3321 362
38. 354 3654 3954 4254 4554 4854 5154 2456 2756 3056 3356 3656 3956 4256 4556 4856 5156 2458 2758 3058 3358 3658 3958 4258 4558 4858 5158 2460 2760 3060 3360 3660 3960 4260 4560 4860 5160 2462 2762 3062 3362 3662 3962 4262 4562 4862 5162 2464 2764 3064 3364 3664 3964 4264 4564 4864 5164 2466 2766 3066 3366 3666 3966 4266 4566 4866 5166 2468 2768 3068 3368 3668 3968 4268 4568 4868 5168 2470 2770 3070 3370 3670 3970 4270 4570 4870 5170 2472 2772 3072 3372 3672 3972 4272 4572 4872 5172 2474 2774 3074 3374 3674 3974 4274 4574 4874 5174 2476 2776 3076 3376 3676 3976 4276 4576 4876 5176 2478 2778 3078 3378 3678 3978 4278 4578 4878 5178 2480 2780 3080 3380 3680 3980 4280 4580 4880 5180 2481 2781 3081 3381 3681 3981 4281 4581 4881 5181 2482 2782 3082 3382 3682 3982 4282 4582 4882 5182 2484 2784 3084 3384 3684 3984 4284 4584 4884 5184 2486 2786 3086 3386 3686 3986 4286 4586 4886 5186 2488 2788 3088 3388 3688 3988 4288 4588 4888 5188 2490 2790 3090 3390 3690 3990 4290 4590 4890 5190 2492 2792 3092 3392 3692 3992 4292 4592 4892 5192 2494 2794 3094 3394 3694 3994 4294 4594 4894 5194 2496 2796 3096 3396 3696 3996 4296 4596 4896 5196 2498 2798 3098 3398 3698 3998 4298 4598 4898 5198 2500 2800 3100 3400 3700 4000 4300 4600 4900 5200 2502 2802 3102 3402 3702 4002 4302 4602 4902 5202 2504 2804 3104 3404 3704 4004 4304 4604 4904 5204 2506 2806 3106 3406 3706 4006 4306 4606 4906 5206 2508 2808 3108 3408 3708 4008 4308 4608 4908 5208 2510 2810 3110 3410 3710 4010 4310 46
39. 5056 2358 2658 2958 3258 3558 3858 4158 4458 4758 5058 Agamoddtods Module Configuration 2100 AGA Modbus Register Assignments Meter Meter Meter Meter Meter Meter Meter Meter Meter Meter Meter Run Summary Data Day 5 1 2 3 4 5 6 7 8 9 10 N A Status flags Last Period 2360 2660 2960 3260 3560 3860 4160 4460 4760 5060 N A Status flags word 2 2361 2661 2961 3261 3561 3861 4161 4461 4761 5061 N A Timestamp 2362 2662 2962 3262 3562 3862 4162 4462 4762 5062 N A Totalized Flow Last Period 2364 2664 2964 3264 3564 3864 4164 4464 4764 5064 N A Totalized Energy Last Period 2366 2666 2966 3266 3566 3866 4166 4466 4766 5066 N A Average Flow Rate Last Period 2368 2668 2968 3268 3568 3868 4168 4468 4768 5068 N A Average Flowing Pressure Last Period 2370 2670 2970 3270 3570 3870 4170 4470 4770 5070 N A Average Flowing Temperature Last Period 2372 2672 2972 3272 3572 3872 4172 4472 4772 5072 N A Spare 2374 2674 2974 3274 3574 3874 4174 4474 4774 5074 N A Time away Last Period 2376 2676 2976 3276 3576 3876 4176 4476 4776 5076 N A On Production Time Last Period 2378 2678 2978 3278 3578 3878 4178 4478 4778 5078 N A Sequence Counter 2380 2680 2980 3280 3580 3880 4180 4480 4780 5080 N A Spare 2382 2682 2982 3282 3582 3882 4182 4482 4782 5082 N A Dm Meter Tube ID 2384 2684 2984 3284 3584 3884 4184 4484 4784 5084 N A dm Orifice plate ID AGA 3 K factor AGA 7 2386 2686 2986 3286 3586 3886 4186 4486 4786 5086 N A spare 2388 2688 2988 3
40. 651 means 96 51 If no conversation data is found The data will assume 100 methane for calculation purposes 35 36 This page intentionally left blank Revised 3 21 01 V DATA MOVEMENT 2100 MODULE TO PLC 5 0 5 1 Revised 3 21 01 Section Overview This section is dedicated to the movement of data from the 2100 module to the PLC Data Table Several different types of data can be expected from the 2100 module and this Section is broken down accordingly 5 1 Modbus Write Commands 5 1 1 Register Writes FC 6 and 16 5 1 2 Single Bit Writes FC 5 5 1 3 Multiple Bit Writes FC 15 5 2 Communication Status Data 5 2 1 Reading Module Status Data 5 2 2 Resetting Module Status Data 5 2 3 Module Status Codes 5 3 Meter Run Results 5 3 1 Real Time Meter Data 5 3 2 Meter Run Summary Data Current Period 5 3 3 Meter Run Summary Data Last Period Modbus Write Commands This section discusses how to get data written to the ProSoft module by a Modbus Master into the PLC processor Supported Modbus Function Codes include 5 6 15 and 16 Data transfer from the 2100 module to the PLC is executed through the Block Transfer Read function Four different types of data are read from the module into the processor The data structure for the Block Transfer depends on the type of data The following sections detail the different types of data 5 1 1 Register Writes Func Code 6 and 16 When a register write command is
41. 7 420 16778 lt Dest N16 0 Source B 0 Length 50 0 lt Copy MBM Data MBM Block ID Block EQU COP Equal Copy File Source A N7 419 Source N7 420 16778 lt Dest N16 50 Source B 1 Length 50 le 0001 CEND gt Page 1 Monday March 19 2001 16 19 11
42. 71 1641 1711 1082 1152 1222 1292 1362 1432 1502 1572 1642 1712 1083 1153 1223 1293 1363 1433 1503 1573 1643 1713 1084 1154 1224 1294 1364 1434 1504 1574 1644 1714 1085 1155 1225 1295 1365 1435 1505 1575 1645 1715 1086 1156 1226 1296 1366 1436 1506 1576 1646 1716 1087 1157 1227 1297 1367 1437 1507 1577 1647 1717 1088 1158 1228 1298 1368 1438 1508 1578 1648 1718 1089 1159 1229 1299 1369 1439 1509 1579 1649 1719 1090 1160 1230 1300 1370 1440 1510 1580 1650 1720 1091 1161 1231 1301 1371 1441 1511 1581 1651 1721 1092 1162 1232 1302 1372 1442 1512 1582 1652 1722 1093 1163 1233 1303 1373 1443 1513 1583 1653 1723 1094 1164 1234 1304 1374 1444 1514 1584 1654 1724 1095 1165 1235 1305 1375 1445 1515 1585 1655 1725 1096 1166 1236 1306 1376 1446 1516 1586 1656 1726 1097 1167 1237 1307 1377 1447 1517 1587 1657 1727 1098 1168 1238 1308 1378 1448 1518 1588 1658 1728 1099 1169 1239 1309 1379 1449 1519 1589 1659 1729 Agamoddtods Module Configuration 6 10 98 AGA 7 Turbine Meters N 0 F 0 F 1 F 2 F 3 F 4 F 5 F 6 F 7 F 8 F 9 F 10 F 11 F 12 F 13 F 14 N 1 N 2 N 3 N 4 N 5 N 6 N 7 N 8 N 9 N 10 N 11 N 12 N 13 N 14 N 15 N 16 N 17 N 18 N 19 N 20 N 21 N 22 N 23 N 24 N 25 N 26 N 27 N 28 N 29 N 30 N 31 N 32 N A N A N A N A N A N A N A 2100 AGA Modbus Register Asignments Meter Configuration Word Dm metertube pipe
43. A Data Memory in the 2100 module is accomplished using the Block Transfer Read command and decoding the Block ID codes between 20 and 29 The PLC ladder logic controls the selection of the Meter Run data block In a one for one relationship Meter run data is returned to the PLC every time the corresponding meter run AGA Data Memory is written into i e when the PLC ladder logic executes a BTW write to Block ID 20 meter 1 the next BTR will contain the read data for Block ID 20 The relationship between the Block ID number and the meter run is Block ID Meter Run 1 20 Meter Run 2 21 Meter Run 3 22 Meter Run 4 23 Meter Run 5 24 Meter Run 6 25 Meter Run 7 26 Meter Run 8 27 Meter Run 9 28 Meter Run 10 29 The data structure for each meter is exactly the same In order to more easily explain the data structure we have broken it down into the following types Revised 3 21 01 Revised 3 21 01 5 3 1 Data Type Data Word Meter Data Real Time 0 13 Meter Summary Data Current 14 37 Meter Summary Data Last Period 38 63 Real Time Meter Data The Real Time Meter Results data block contains current status word and output flow values for the meters The structure of the data block is as follows Meter Run Real Time Data Modbus Addresses shown only for Meter 1 Data Modbus Wrd Description Format Units Address 0 Meter Status word 1800 1 Spare Control Status word 1801 2 3 Volumetric Flow Rate Cont
44. Corporate Office 9801 Camino Media Bakersfield CA 93311 661 664 7208 Phone 661 664 7233 Fax 2100 AGA Revision 1 98 Revision 2 08 March 2001 AGA Gas Flow Processor and Communications Module AGA 3 7 and 8 USER MANUAL Please Read This Notice Successful application of the Flow Processor card requires a reasonable working knowledge of the Modbus protocol the AGA 3 7 and 8 flow calculations and the application in which they are being applied For this reason it is important that those responsible for configuring the module satisfy themselves that the module s functionality will meet the application s requirements This manual is provided to assist the user Every attempt has been made to assure that the information provided is accurate and a true reflection of the product s installation requirements In order to assure a complete understanding of the operation of the product the user should familiarize themselves with the Modbus protocol and the AGA 3 7 and 8 Gas Flow specifications Under no conditions will ProSoft Technology Inc be responsible or liable for indirect or consequential damages resulting form the use or application of the product Reproduction of the contents of this manual in whole or in part without written permission from ProSoft Technology Inc is prohibited Information in this manual is subject to change without notice and does not represent a commitment on the part of ProSoft Technolog
45. Cutoff value will force the measured flow to zero 0 0 Analog Scaling Min Max ft8 Sec m3 hr The Minimum and Maximum scaling values represent the range of the Analog signal that will be received from the meters pulse to analog Transmitter for the meter run These values are used to range the unscaled 0 4095 real time value Tf Scaling Min Max Deg F Deg C The Minimum and Maximum scaling values represent the range of the Temperature Transmitter for the meter run These values are used to range the unscaled 0 4095 real time value Pf Scaling Min Max PSIA kPa The Minimum and Maximum scaling values represent the range of the Pressure Transmitter for the meter run These values are used to range the unscaled 0 4095 real time value Real Time Update Data AGA 3 and AGA 7 The Meter Run Real Time Update Data block contains the pressure temperature and differential pressure data that the module requires to determine the instantaneous flow rates In addition the data block contains a control word which can be used to control the operation of the meter Real Time Update Data AGA 3 and AGA 7 Modbus addresses shown only for Meter 1 Data Modbus Wrd Description Format Units Address 31 Meter Control Word 1061 32 Delta P AGA 3 or Analog value AGA7 0 4095 1062 33 Tf Flowing temp real time value 0 4095 1063 34 Pf Flowing Pressure real time value 0 4095 1064 35 Turbine Frequency High AGA 7 0 120 1065 36 Turbi
46. ID measured TDm K Factor Spare Spare Spare Density T P Used if Entered selected Density base T P Used if Entered selected Low Flow Cutoff Analog flow rate Scaling Min Value Analog flow rate Scaling Max Value T Scaling Min Value T Scaling Max Value Pf Scaling Min Value Pf Scaling Max Value Spare Meter Control Word Turbine analog realtime value Tf Flowing temp real time value Pf Flowing Pressure realtime value Turbine frequency high Turbine frequency low Turbine pulse total high Turbine pulse total low Spare AGA 8 Update Control Word Concentration Mole Methane Concentration Mole Nitrogen Concentration Mole Carbon Dioxide Concentration Mole Ethane Concentration Mole Propane Concentration Mole Water Concentration Mole Hydrogen Sulfide Concentration Mole Hydrogen Concentration Mole Carbon Monoxide Concentration Mole Oxygen Concentration Mole i Butane Concentration Mole n Butane Concentration Mole i Pentane Concentration Mole n Pentane Concentration Mole n Hexane Concentration Concentration Concentration Mo Concentration Mole n Heptane Mo Mo le n Octane le n Nonane le n Decane Concentration Mole Helium Concentration Mo le Argon space Spare in 2100 module Spare in 2100 module Spare in 2100 module Spare in 2100 modu
47. K ID 255 Modbus and AGA configuration data File Loc BT Word N7 0 0 N7 1 1 N7 2 2 N7 3 3 N7 4 4 N7 5 5 N7 6 6 N7 7 7 N7 8 8 N7 9 9 N7 10 10 N7 11 11 N7 12 12 N7 13 13 N7 14 14 N7 15 15 N7 16 16 N7 17 17 N7 18 18 N7 19 19 N7 20 20 N7 21 21 N7 22 22 N7 23 23 N7 24 24 N7 25 25 N7 26 26 N7 27 27 N7 28 28 N7 29 29 BTW BLOCK ID 0 to 19 File Loc BT Word 0 to 49 50 51 52 53 54 55 56 57 58 59 60 61 62 Printed 6 10 98 _ Description Format Units Modbus Slave Address Parity Stop Bits Baud Rate RTS to TxD delay RTS Off Delay Input Table Offset Output Table Offset RTU ASCII Mode Select Flow Calc Co Pro System Setup 0 N A 1 N A 2 Force End of Day Rollover 3 English or Metric Units 4 Display Mode 5 Disk Log Mode PCMCIA 6 Hard debug Shuts down on a Math Error Set to enable clear in PLC logic 0 English 1 Metric 0 Normal 1 Debug 0 no log 1 log to PCMCIA 7 MBM Enable 1 Enable Delta T3 for AGA 3 recalc resolution xxx x Deg F Deg C Delta T8 for AGA 8 recalc resolution xxx x Deg F Deg C Delta P8 for AGA 8 recalc resolution xxx x psia kPa Base T Contract base Temperature xxx x Deg F Deg C Base P Contract Base Pressure xxx x psia kPa Time Zone Hours behind GMT XXX X hrs End of Day Rollover Hours 0 to 23 XX Active Meter Runs 1 10 XX Modbus Slave Port Read Data Blocks 0 to 80 XX Gauge Press to Absolute Pressure Offset Modbus Master Port Rea
48. L File Arith Logical GEND Control RITA Length 1 lt DN Position 0 lt Mode ALL lt ER gt Dest N12 0 0 lt Expression NOT N7 443 FC 15 CONTROL REG 2 FAL File Arith Logical CEN gt Control R11 2 Length 1 lt lt DN gt Position 0 lt Mode ALL CER gt Dest N12 30 0 lt Expression N10 N7 412 AND N12 0 FC 15 CONTROL REG 3 FAL File Arith Logical CEN gt Control R11 3 Length 1 lt DN Position 0 lt Mode ALL lt ER gt Dest N10 N7 412 0 lt Expression N7 413 AND N7 443 FC 15 CONTROL REG 4 FAL File Arith Logical CEN gt Control R11 4 Length 1 lt DN Position 0 lt Mode ALL CER gt Dest N10 N7 412 0 lt Expression N10 N7 412 OR N12 30 2100 MODULE METER DATA The meter results are returned in BTR blocks with block ID codes 20 29 This rung decodes the data and moves the data into the appropriate integer and floating point registers DECODE BT READ BT READ DONE BIT BLOCK ID N7 400 LIM CPL J E Limit Test Compute 13 Low Lim 20 Dest N7 406 20 lt 31 lt Test N7 410 Expression N7 410 10 0 lt High Lim 29 29 lt Page 6 Thursday July 08 1999 09 48 52 AGASSI RSP LAD 3 AGA_MAIN Total Rungs in File 14 TIMESTAMP COP Copy File Source N7 411 Dest N N7 410 60 Length 2 REAL TIME OUTPUT VALUES COP Copy File Source N7 413 Dest F N7 406 20 Length 18
49. M a Limit Test 15 Low Lim 20 20 lt Test N7 310 20 lt High Lim 29 29 lt WRITE TO BT WRITE BUFFER COP Copy File Source N10 0 Dest N7 311 Length 50 COP Copy File Source S 18 Dest N7 368 Length 6 CPT Compute Dest N7 307 Expression N7 310 10 30 lt Page 3 Thursday July 08 1999 09 48 45 AGASSI RSP LAD 3 AGA_MAIN Total Rungs in File 14 MOV Move Source N N7 310 0 17410 lt Dest N7 311 17410 lt COP Copy File Source N N7 310 1 Dest N7 342 Length 32 COP Copy File Source F N7 307 0 Dest N7 312 Length 30 DECODE WRITE TO BT READ BT WRITE BT WRITE BT WRITE ENABLE ENABLE BLOCK BUFFER N7 400 N7 300 EQU COP 0006 EE Equal Copy File 15 15 Source A N7 310 Source N7 0 20 lt Dest N7 311 Source B 255 Length 30 255 lt 1ST SCAN CONFIG DEACTIVATE N7 309 W gt 0 LIM CPT Limit Test Compute Low Lim 256 Dest N7 307 256 lt 30 lt Test N7 310 Expression N7 310 226 20 lt High Lim 266 266 lt WRITE TO BT WRITE BUFFER COP Copy File Source F N7 307 26 Dest N7 311 Length 24 BLOCK TRANSFER WRITE TO 2100 MODULE BT READ BT WRITE BT WRITE ENABLE ENABLE TO MODULE N7 400 N7 300 BTW 0007 EE e EE Block Transfer Write CEN 15 15 Module Type Gene
50. Repair The 2100 product is a product designed and manufactured to function under somewhat adverse conditions As with any product through age misapplication or any one of many possible problems the product may require repair The 2100 product has a 90 day upgrade warranty and a one year parts and labor warranty according to the limits specified in the warranty Revised 3 21 01 55 56 7 3 Replacement and or returns should be directed to the distributor from whom the product was purchased If you need to return the card for repair it is first necessary to obtain an RMA number from ProSoft Technology Please call the factory for this number and display the number prominently on the outside of the shipping carton used to return the card Warranty 7 3 1 7 3 2 General Warranty Policy ProSoft Technology Inc Hereinafter referred to as ProSoft warrants that the Product shall conform to and perform in accordance with published technical specifications and the accompanying written materials and shall be free of defects in materials and workmanship for the period of time herein indicated such warranty period commencing upon receipt of the Product This warranty is limited to the repair and or replacement at ProSoft s election of defective or non conforming Product and ProSoft shall not be responsible for the failure of the Product to perform specified functions or any other non conformance caused by or attributable to a a
51. S DEALER S TOTAL LIABILITY EXCEED THE PRICE PAID FOR THE PRODUCT Where directed by State Law some of the above exclusions or limitations may not be applicable in some states This warranty provides specific legal rights other rights that vary from state to state may also exist This warranty shall not be applicable to the extent that any provisions of this warranty is prohibited by any Federal State or Municipal Law that cannot be preempted Revised 3 21 01 Revised 3 21 01 7 3 3 Hardware Product Warranty Details Warranty Period ProSoft warranties hardware product for a period of one 1 year Warranty Procedure Upon return of the hardware Product ProSoft will at its option repair or replace Product at no additional charge freight prepaid except as set forth below Repair parts and replacement Product will be furnished on an exchange basis and will be either reconditioned or new All replaced Product and parts become the property of ProSoft If ProSoft determines that the Product is not under warranty it will at the Customer s option repair the Product using current ProSoft standard rates for parts and labor and return the Product freight collect 57 58 This page intentionally left blank Revised 3 21 01 APPENDICES APPENDIX A Block Transfer Buffer Register Mapping Modbus Register Mapping APPENDIX B RS 232 and RS 422 485 Cabling APPENDIX C Gas Viscosity Chart APPENDIX D Use Interlink to Conn
52. STATUS N7 400 EQU COP 0009 J E Equal Copy File 13 Source A N7 410 Source N7 411 0 lt Dest N7 800 Source B 0 Length 5 0 lt EQU COP Equal Copy File Source A N7 419 Source N7 420 16899 lt Dest N16 0 Source B 0 Length 50 0 lt EQU COP Equal Copy File Source A N7 419 Source N7 420 16899 lt Dest N16 50 Source B 1 Length 50 le MODBUS FC 5 BIT SET RESET COMMAND When the BT READ Block ID is 2 the action set reset and bit address are decoded and excecuted DECODE DECODE EXECUTE BT READ BT READ SET RESET SET RESET DONE BIT BLOCK ID BIT CMD BIT N7 400 EQU N7 412 B13 0010 4 E Equal J K 13 Source A N7 410 0 N7 411 0 lt Source B 2 DECODE EXECUTE 2 lt SET RESET SET RESET BIT CMD BIT N7 412 B13 o U 0 N7 411 Page 5 Thursday July 08 1999 09 48 49 AGASSI RSP LAD 3 AGA_MAIN Total Rungs in File 14 0011 0012 MODBUS FC 15 MULTIPLE BIT SET RESET COMMAND When the BT READ Block ID is 4 the logic necessary to combine the existing data registers with the new masked data is executed DECODE FC 15 BT READ BT READ CONTROL DONE BIT BLOCK ID REG 5 N7 400 EQU FAL J E Equal File Arith Logical CEN gt rA 13 Source A N7 410 Control R11 5 0 lt Length 4 lt lt DN gt Source B 4 Position 0 lt 4 lt Mode ALL CER gt Dest R11 1 LEN le Expression N7 411 FC 15 CONTROL REG 1 FA
53. TUS S 1 J C 1ST SCAN CONFIG ACTIVATE N7 309 0000 TE 2 15 0 DECODE BT READ BLOCK ID EQU Equal Source A N7 410 0 lt Source B 255 255 lt FORCE METER CONFIGURATION On Power Up or when module is reset for some reason this rung forces a configuration of the individual meter Until this logic is executed the meter will be considered unconfigured and will not operate To activate more meters simply add the appropriate branches to this rung 1ST SCAN METER 1 CONFIG CONFIG DETECT ENABLE N7 309 N20 1 0001 4 H CLD 0 0 METER 2 CONFIG ENABLE N21 B T METER 3 CONFIG ENABLE N22 1 u om 0 METER 4 CONFIG ENABLE N23 1 mag sm 0 BT WRITE DATA AND CONFIGURATION ENCODING The BTW Data Block is incremented prior to each BTW command being executed in rung 2 If the card configuration is activated first scan or N7 410 255 then 255 is written into the BTW Block ID INCREMENTS BT READ BT WRITE BT WRITE ENABLE ENABLE DATA BLOCK N7 400 N7 300 ADD 000 s f s Add 15 15 Source A N7 310 20 lt Source B 1 le Dest N7 310 20 lt DECODE ENCODES BT WRITE BT WRITE BLOCK BLOCK ID EQU MOV Equal Move Source A N7 310 Source 20 20 lt 20 lt Source B 1 Dest N7 310 1 lt 20 lt Page 2 Thursday July 08 1999 09 48 40 AGASSI RSP LAD 3 AGA_MAIN Total Rungs in File 14 0003
54. Tube ID dm Orifice plate ID AGA 3 K factor AGA 7 spare Meter Run Summary Data Day 4 Status flags Last Period Status flags word 2 Timestamp Totalized Flow Last Period Totalized Energy Last Period Average Flow Rate Last Period Average Flowing Pressure Last Period Average Flowing Temperature Last Period Spare Time away Last Period On Production Time Last Period Sequence Counter Spare Dm Meter Tube ID dm Orifice plate ID AGA 3 K factor AGA 7 spare Meter Meter Meter Meter Meter Meter Meter Meter Meter Meter 1 2 3 4 5 6 7 8 9 10 2270 2570 2870 3170 3470 3770 4070 4370 4670 4970 2271 2571 2871 3171 3471 3771 4071 4371 4671 4971 2272 2572 2872 3172 3472 3772 4072 4372 4672 4972 2274 2574 2874 3174 3474 3774 4074 4374 4674 4974 2276 2576 2876 3176 3476 3776 4076 4376 4676 4976 2278 2578 2878 3178 3478 3778 4078 4378 4678 4978 2280 2580 2880 3180 3480 3780 4080 4380 4680 4980 2282 2582 2882 3182 3482 3782 4082 4382 4682 4982 2284 2584 2884 3184 3484 3784 4084 4384 4684 4984 2286 2586 2886 3186 3486 3786 4086 4386 4686 4986 2288 2588 2888 3188 3488 3788 4088 4388 4688 4988 2290 2590 2890 3190 3490 3790 4090 4390 4690 4990 2292 2592 2892 3192 3492 3792 4092 4392 4692 4992 2294 2594 2894 3194 3494 3794 4094 4394 4694 4994 2296 2596 2896 3196 3496 3796 4096 4396 4696 4996 2298 2598 2898 3198 3498 3798 4098 4398 4698 4998 2300 2600 2900 3200 3500 3800 4100 4400 4700 5000 2301 2601 2901 3201 3501
55. Word is used to perform control several meter specific setup functions The active bits have the following meanings Bit 1 Description PLC User Config Select This bit determines if the module uses configuration data from the PLC or from the Modbus port This value should be set to a 1 as User configuration through Modbus Port is not enabled in this release PLC Configuration Data 1 User Modbus Config Data 0 Inactive AGA 3 or AGA 7 Flow Calculation Select This bit is used to select the flow measurement equations which will be performed for this meter AGA 3 0 Differential Pressure AGA 7 1 Turbine pulses or analog Disable End of Day Rollover This bit is used to disable the End of Day Rollover that the module 27 28 6 7 8 9 10 11 13 14 executes automatically based on the Real Time Clock and the configured End of Day Hour Enable End of Day Rollover 0 Disable End of Day Rollover 1 Static Pressure Location Selects the Static Pressure measurement location for the Flange tap If the downstream location is selected the module adds the Delta P value to determine the Upstream pressure Downstream 1 Upstream 0 Orifice Plate Material These bits allow the user to select the Orifice Plate material Available selections are Bit Bit 7 6 Description 0 0 304 316 SS 0 1 Monel 1 0 Carbon Steel 1 1 Invalid Meter Run Material Select These bits allow the user to select the
56. adley 1771 VO compatible processors the ability to 1 Perform the American Gas Association Report No 3 1992 and the American Gas Association Report No 7 1984 gas flow rate equations 2 Perform the American Gas Association Report No 8 1992 compressibility calculations 3 Interface to a Modbus Master device 1 1 Product Specifications The product performs per the following specifications Modbus Slave Specifications e RTU mode with CRC 16 or ASCII mode with LRC e Function codes 1 Read Output Status Future 2 Read Input Status Future 3 Read Multiple Data Registers 4 Read Input Registers 5 Force Single Coil Future 6 Preset Write Single Data Register 8 Loopback Test Future 15 Multiple Bit Write Future 16 Preset Write Multiple Data Register e Supports broadcast commands from Master e Software configuration From PLC Address 1 to 247 0 is broadcast Parity None odd or even Stop Bit 1or2 Baud Rate 300 TO 19 200 e Hardware RS 232C handshaking for modem and radio applications e RS 422 RS 485 compatible for multidrop applications e Supports the addressing of up to 1000 registers from the PLC data table while giving read access directly to the Flow Processor s memory AGA 3 7 amp 8 Specifications e Support for ten independently configured and operated meter runs e AGA3Flange Tapped Orifice Metering Report No 3 1992 User configurable parameters Orifice and Meter run materials and
57. aling 0 MCF 1 MMCF 14 Compressible Fluid Flag Yes 1 No 0 15 Dm meter tube pipe ID measured TDm TDm meter tube measuring temp dm Orifice plate bore measured Tm Tdm Orifice plate measuring temp Viscosity Density T P Used if Entered selected Density base T P Used if Entered selected Low Flow Cutoff Diff P Scaling Min Value Diff P Scaling Max Value Tf Scaling Min Value Tf Scaling Max Value Pf Scaling Min Value Pf Scaling Max Value Spare Meter Control Word 0 Configuration Enable 1 AGA8 Configuration Enable 2 Meter Freeze 3 Force Meter Reset 15 Instrument Fail Detected Delta P real time value Tf Flowing temp real time value Pf Flowing Pressure real time value Spare Spare Spare Spare Spare AGA 8 Update Control Word 1 Control bit User 0 or PLC 1 2 Control bit BTU Calc Disable Modbus Units Address Future 0 AGAS 1 AGA7 00 304 316 SS 10 Carbon Steel 01 Monel 00 304 316 SS 10 Carbon Steel 01 Monel 00 Use entered values 01 AGA8 Float inches mm Float Deg F Deg C Float inches mm Float Deg F Deg C Float cP cP Float Ib ft3 kg m3 Float Ib ft3 kg m3 Float in H2O kPa Float in H20 kPa Float in H20 kPa Float Deg F Deg C Float Deg F Deg C Float PSIA kPa Float PSIA kPa Float Set to enable Config words 0 9 Set to enable new AGA 8 values Set to freeze meter Clear to run meter Set to reset met
58. ands on the backplane connector must correspond to the slots in the board to allow the module to be inserted in the chassis For the 2100 snap the keying bands onto the lower backplane connector between 2 4 and between 14 16 2 3 Installing Battery Backup Jumper Revised 3 21 01 5 2 4 The 2100 module has a replaceable 3 6 V lithium battery A B part 1770 XZ that provides backup power for the clock and configuration information When the module is shipped from ProSoft Technology the battery jumper is located in the Enabled position This is the result of the testing procedure the module has been placed through at the factory Use the following information to adjust the battery jumper if ever required or to locate the battery if you need to change it Inserting Module in Chassis To insert the 2100 module into the I O chassis use the following procedure 1 Remove power from the 1771 I O chassis Place the module in the card guides on the top and bottom of the slot Slide the module into the slot 3 Snap the chassis latch over the top of the module to secure it Revised 3 21 01 2 5 Revised 3 21 01 SAFETY NOTICE Remove power from the 1771 I O chassis backplane before installing the module Failure to remove power could cause e Injury e equipment damage from unexpected operation e degradation of performance Connecting a Monitor A VGA compatible monitor is supported by the 2100 module to dis
59. available selections are Bit Bit 11 10 Description 0 0 Use USER entered values 0 1 AGA 8 1 0 Invalid 1 1 Invalid 13 Output Value Scaling In AGA 3 calculation this bit determines the Output Flow rate and accumulation scaling factor The changes are reflected in the data returned from the module MCFD and MCF 0 Default in AGA 7 MMCFD and MMCF 1 Not used in AGA 7 Dm Meter Tube Internal Diameter inches mm The entered value represents the Meter Tube Internal Diameter measured at TDm This value is included in the data set for historical logging purposes K Factor pulses ft3 pulses ma The value represents the pulses per cubic foot or per cubic meter for the turbine meter If the analog type is selected the module defaults the K factor to 1 0 Density T P User Entered lom ft3 kg m3 This value is the User Entered density which will be used to calculate flow at process conditions if the meter run Compressibility Calc Type word 0 bits 10 11 is set for User Entered Values 31 32 4 3 3 Density Base User Entered lbm ft3 kg m3 This value is the User Entered density which will be used to calculate flow at base conditions if the meter run Compressibility Calc Type word 0 bits 10 11 is set for User Entered Values Low Flow Cutoff inches of water kPa The entered value represents the low flow cutoff differential pressure Any measured differential pressure less than the Low Flow
60. ce 100 5240 5339 PLC Data Transfer Interface Revised 3 21 01 Data transfer between the PLC processor and the 2100 module occur using the Block Transfer functionality This functionality allows the transfer of 64 physical registers per transfer The J ogical data length changes depending on the data transfer function as will be explained in this and later sections in the manual The following discussion details the mechanism and data structures used to transfer the different types of data between the 2100 module and the PLC An example PLC ladder logic is included in Appendix A 2 In order for the Flow Processor module to function the PLC must be in the RUN mode or in the REM RUN mode If in any other mode Fault PGM the Block Transfer instructions will stop Under this condition the meter calculation will increment the Time Away counter once per minute The Modbus Slave port will continue to communicate 3 3 1 Writing Data to the 2100 Module This section discusses how to transfer data to the Flow Processor module to 1 Configure the module 2 To be accessed by a Master through Modbus Function Codes 1 2 3 and 4 and 3 For use by the AGA calculation The different types of data which are transferred require slightly different data block structures but the basic data structure is WORD DESCRIPTION 0 Block ID code 1 63 Data The BTW file length must be configured for 64 words when programming the i
61. d 1200 Baud 2400 Baud 4800 Baud 9600 Baud 19200 Baud OORUN RTS TO TXD DELAY This value represents the time in 1 ms increments to be inserted between asserting RTS and the actual transmission of data The delay if greater in duration than the hardware time delay associated with CTS will override the CTS line until the timeout is complete This configurable parameter is useful when interfacing with modem based devices or anytime line noise must be allowed to subside before data is transmitted RTS OFF DELAY The value in this word represents the number of 1 ms time delay increments inserted after the last character is transmitted and before RTS is dropped The delay serves an important function in modem and multidrop line driver applications RS 422 RS 485 applications Recommended values to be placed in the configuration register are as follows CONNECTION TYPE VALUE RS 232C 0 All others Modem RS 422 485 etc 300 Baud 25 50 600 Baud 14 16 1200 Baud 9 10 2400 Baud 3 4 4800 Baud 2 3 9600 Baud 1 2 19200 Baud 1 If an incorrect value is used in a system which requires a time delay communications will most likely fail completely or at least on an intermittent basis The values presented here have been empirically determined and should therefore only be used as starting points The maximum value that can be used is 65535 INPUT MEMORY START ADDRESS This value defines the offset address into the 1000 word
62. d Data Block Cnt 0 20 Spare Spare Spare Spare Spare Spare Spare Spare xx x psia kPa Description Modbus Data Registers 0 999 Spare Spare Spare Spare Spare Spare Spare PLC date and time PLC date and time PLC date and time PLC date and time PLC date and time PLC date and time N7 368 in BTW buffer N7 369 N7 370 N7 371 N7 372 N7 373 Revision 1 92 Modbus Address 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 Page 2 2100 AGA Module Block Transfer Buffer RegisterMap AGA 3 Differential Pressure Meters BTW BLOCK ID 20 to 29 File Loc NITO F 0 FIT F 2 F 3 F 4 F 5 F 6 F 7 F 8 F 9 F 10 F 11 F 12 F 13 F 14 N 1 ZZZZ2Z2Z22Z222 SOONDHHRON oO ZZZ22Z22Z22Z22Z222222222Z22222222 N Printed 6 10 98 BT Word 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 Description Meter Configuration Word 0 1 Use PLC Config 1 or User Port Config 0 2 AGA 3 or 7 Flow Calc Select 5 Static pressure upstream 0 or downstream 1 6 Orifice Plate Material bit 0 7 bit 1 8 Meter Run Material bit 0 9 bit 1 10 Compress Calc Type bit 0 11 bit 1 12 13 Output Value Sc
63. d or a problem is encountered in loading the file the EXE file will abort with an error message The MBM CFG may be edited with any dos editor which does not add characters hidden or otherwise to the file We normally use the DOS EDIT command which is provided with DOS 5 0 The structure of the file as originally provided is as follows Note that if your file gets corrupted you may clip out the following text and save to MBM CFG The CMD files is setup to support up to 10 slaves with each slave setup to handle 10 commands Each slave can be named with a 10 character name followed by the slave address Note spacing is very important Do not alter spacing in the file Following the definition of the slave name and address the CMD file contains up to 10 commands for the slave The command structure consists of the following DANIEL2251 1 10 char slave name slave address 1 3 0 27 3032 0 1 3 30 16 7000 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Frequency Remote Address l Count Local Address Function Code Enable Enable 1 Enables 1 or disables 0 the command Function 3 The Function Code to be executed by the MBM program Local Addr 0 The address in the MBM programs data buffer here the read data Will be deposited or where the write data will get its data Count 10 The number of words that the MBM program will request from
64. ddressed bits This allows for starting addresses which are not on a word boundary and lengths 39 40 5 2 which do not end on a word boundary The example logic shows how to use the mask bits Module Status Data Read Block ID 0 The module maintains communications status for the PLC This section discusses how to get this module status data from the ProSoft Technology module into the PLC The module maintains several pieces of status information that can be useful for module debugging purposes as well as determining communication integrity 5 2 1 Reading Module Status Data The Status Data block is transferred to the processor with a Block ID of 0 The structure of the data block is as follows DATA WORD DESCRIPTION Current module status Last transmitted error condition Total Messages to this slave Total Msg responses from this slave Total Msgs seen by this slave Spare Spare MBM Error Code MBM Receive Counter MBM Block ID OONDOARWNM O Where BLOCK ID When the Block ID number in the BTR buffer Word 0 is 0 the module is transferring the Status Data block CURRENT MODULE ERROR STATUS This value represents the current value of the error code inside the module The possible values are detailed in the following section LAST TRANSMITTED ERROR CONDITION This value is the last error code transmitted to the master by this slave Error codes which can be expected in this field are 0 1 2 3 and 6 The field
65. e in a Greater Than test to determine when to recalculate the AGA 8 temperature dependent equations This optimization can be performed with minimum loss on accuracy A value of 0 will cause the recalculation to be performed every time a temperature change is detected The value is entered as an integer with a 0 1 resolution An entered value of 50 means 5 0 to the module Revised 3 21 01 Revised 3 21 01 DeltaP8 xxx x PSI kPa The DeltaP8 value is used by the module in a Greater Than test to determine when to recalculate the AGA 8 pressure dependent equations This optimization can be performed with minimum loss on accuracy A value of 0 will cause the recalculation to be performed every time a temperature change is detected The value is entered as an integer with a 0 1 resolution An entered value of 50 means 5 0 to the module Base T Contract Base Temperature xxx x Deg F Deg C This value represents the Contract Base Temperature condition Normal values for this parameter are 68 0 Deg F or 20 0 Deg C An entered value of 680 means 68 0 to the module Base P Contract Base Pressure xxx x PSIA kPa This value represents the Contract Base Pressure condition Normal values for this parameter are 14 7 PSIA or 101 3 kPa An entered value of 147 means 14 7 to the module Time Zone xx x Hours The Time Zone parameter is used to correct the timestamp calculation from GMT to local time The entered value represents the number o
66. e is reset during the End Of Day Rollover process Time Away Time Minutes The Time Away value represents the amount of time in minutes that the meter module has detected a failed block transfer or power down reset condition The block transfer failure condition may be caused by the PLC being taken out of Run The power down reset condition could be an actual power failure or if the module is taken out of run such as for a software upgrade The 2100 AGA module stores the current calculation time in battery backed ram once per minute When the module is reset or powered up these registers are read to determined how long the module has been down and therefore the Time Away Meter On Production Time Sequence Period Minutes The Meter On Production Time represents the duration of the sequence period in minutes During which flow has been gt to the low flow cut off This value may be used to determine actual flow times in cases where contract period interruptions are detected 47 48 5 3 3 The 2100 AGA module clears all of its internal registers on power up To overcome the potential loss of valuable flow data the ladder logic is used to detect the power up or reset condition of the 2100 module When this condition is detected the ladder logic shifts all Current Period data into the Historical data and timestamps it Sequence Counter This value is used to monitor the number of re co
67. ect a Computer APPENDIX E PLC 5 Example Ladder Logic APPENDIX F Modbus Master Port Example Daniel 2251 Analyzer APPENDIX A Block Transfer Buffer Register Mapping Modbus Register Mapping Note that all Register Map spreadsheet files are available on the ProSoft Technology Inc BBS See Section 7 for instructions N 0 NIT 10 NIT 20 N 30 N 40 N 50 N 60 6 10 98 0 1 2 3 4 5 6 7 8 9 Config Wrd Control Wrd Delta P Tf Temp Pulse Rate H Pulse Rate L Pulse Total H Pulse Total L AGA8 Control Carbon Dioxide Hydrogen Carbon Monoxide Oxygen 2100 AGA Module Example Ladder Logic Data Table Usage Integer File Setup i Butane n Butane i Pentane n Pentane n Hexane n Heptane n Octane n Nonane n Decane Argon Mir Status 1 _MirStatus2 mirStattLastP MirStat2tastP TT Updated Revision 7 29 95 1 92 F 0 F 5 F 10 F 15 F 20 F 25 F 30 F 35 F 40 F 45 F 50 Floating Point File Setup 0 1 2 3 4 Mtr Tube ID_ Mtr Tube Temp Orifice ID Orifice Temp Density T P Density Base Low Flow Cutoff Diff P Min Diff P Max Configuration Flow Rate Energy Flow Density T P Density Base Meter Results Total Flow Total Energy Avg DP On Prod T Daly TotFlow Daily Timestamp cur S Spare Spare Do Plcagamp xls Avg Press Historical Last Period Register Mapping Printed 6 10 98 2100 AGA Module Block Transfer Buffer Register Map Block
68. egister listing in Appendix A 1 This User Manual This page intentionally left blank Revised 3 21 01 I INSTALLING THE MODULE Installing the 2100 AGA module into a 1771 I O platform is straightforward and procedural in nature The following sections detail the step by step procedures that must be followed to take a 2100 module out of the shipping box to the point of being operational Many aspects of this section are excerpted from the 1771 DSX2 User Manual 2 1 Locating the Module in VO Chassis Place the 2100 module in a chassis in one of the slots closest to the PLC Group similar modules to minimize adverse effects from radiated electrical noise and heat It is recommended that you e Group analog and low voltage DC modules away from AC modules or high voltage DC modules to minimize electrical noise e Do not place the 2100 module in the same even odd slot pair with A 16 bit VO module when using 2 slot addressing A 32 bit VO module when using 1 slot addressing e Consider the environmental requirements outlined in Section 1 2 2 Placing the Keying Bands Once you have designated a slot for the module steps should be taken to assure other modules are not accidentally inserted into this slot It is recommended that the plastic keying bands shipped with each I O chassis be used to key the I O slot for the 2100 module The module is slotted in two places on the lower rear edge of the card The position of the keying b
69. er Installing the INTERLNK EXE device driver You must use the device command to install the INTERLNK EXE device driver in the config sys file and restart the computer before you can use the interlink command Notes Canceling redirection on a drive To cancel redirection of a client drive to a server drive specify only the client drive and the equal sign Examples To cancel the redirection of client drive F type interlnk f Gar To display the current status of the Interink program type interlnk Chapter 4 Use Interink to Connect a Computer INTERSVR EXE a program that you run from the command line or batch file on the server computer The program specifies the operation of the server and is resident on the utility diskette Syntax intersvr drive x drive lpt n address com n address baud rate b v rcopy Parameter Switch Description Parameter drive Specifies the letter of a drive that will be redirected By default all drives are redirected Swiiches usdrive Specifies a drive that will not be redirected By default all drives are redirected ipt n address Specifies a parallel port to use n Specifies the number of the parallel port address specifies the address of the parallel port If you omit n or address the Interink server uses the first parallel port that i finds connected to the client If you specify the 2pt switch and omit the com switc
70. er logic will be transferred into the Meter Status Word for logging with the historical data No action is taken by the meter except to store the bit in status This indication may be used later when analyzing data to determine if any readings may be bad Delta P AGA 3 or Pulse Analog AGA 7 0 4095 The entered number is the unscaled value for the Differential Pressure or the Pulse Analog signal This value should be updated by the ladder logic from measurements taken by an analog input module Analog signal coming from instrument may need to be scaled to correct units for module to handle Tf Flowing Temperature 0 4095 The entered value represents the process fluid temperature in engineering units as measured in the process stream This value should be updated by the ladder logic from measurements taken by an analog input module 33 4 3 4 Pf Flowing Pressure 0 4095 The entered value represents the Gauge or Aboslute pressure as measured in the process stream The pressure may be measured upstream or downstream of the orifice plate The location can be configured in the Meter Configuration Word Word 0 bit 5 This value should be updated by the ladder logic from measurements taken by an analog input module If the pressure is provided in Gauge form then see module configuration registers to enter the Gauge to Absolute offset AGA 8 Configuration Data The AGA 8 Composition Data block contains the gas composition data neces
71. er to 0 Set when detect any instrument failure 0 4095 Upper 2 bits for alarms 0 4095 Upper 2 bits for alarms 0 4095 Upper 2 bits for alarms 1 Must be set 0 enable 1 disable 3 Control bit Fw Factor Calc Enable English Units Only 0 disable 1 enable Concentration Mole Methane Concentration Mole Nitrogen Concentration Mole Carbon Dioxide Concentration Mole Ethane Concentration Mole Propane Concentration Mole Water Concentration Mole Hydrogen Sulfide Concentration Mole Hydrogen Concentration Mole Carbon Monoxide Concentration Mole Oxygen Concentration Mole i Butane Concentration Mole n Butane Concentration Mole i Pentane Concentration Mole n Pentane Concentration Mole n Hexane Concentration Mole n Heptane Concentration Mole n Octane Concentration Mole n Nonane Concentration Mole n Decane Concentration Mole Helium Concentration Mole Argon space Revision 1 92 Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole Integer xx xx Mole
72. essure If it is desired to provide the Static Pressure in Gauge form then the local atmospheric pressure can be entered in this register to conver the Gauge pressure to Absolute Note that if Abosulte pressure is provided to the module then this register should contain a zero Modbus Master Read Block Count xx Blks This register will be used to determine the number of block transfers required to move the results from the Modbus Master port read commands to the PLC ladder logic Configuring the Meter Runs Block ID 20 29 Configuring the meters runs is accomplished by writing to the AGA Data Memory in the 2100 module using the Block Transfer Write with the Block ID Code between 20 and 29 followed by the necessary data The relationship between the Block ID number and the meter run is Block ID Meter Run 1 20 Meter Run 2 21 Meter Run 3 22 Meter Run 4 23 Meter Run 5 24 Meter Run 6 25 Meter Run 7 26 Meter Run 8 27 Meter Run 9 28 Meter Run 10 29 The data structure for each meter is exactly the same In order to more easily explain the data structure we have broken it down into the following types Data Type Data Word Meter Run Configuration Data 0 30 AGA 3 block type AGA 7 block type Real Time Update Data 31 39 AGA 8 Composition Data 40 62 Revised 3 21 01 Revised 3 21 01 4 3 1 Meter Run Configuration Data AGA 3 Diff Pressure The Meter Run Configuration Data block consists of m
73. eter run specific configuration data Data must be entered for each meter run that will be operational The structure of the data block is different between the AGA 3 and AGA 7 equations after the Flow Calc Select bit This bit determines which equation set will be used Values entered in words 0 9 are not used by the module until the Configuration Enable bit word 10 Section 4 4 2 is set Meter Run Configuration Data AGA 3 Meter type Modbus addresses shown only for Meter 1 Data Modbus Wrd Description Format Units Address 0 Meter Configuration Control Word 1030 1 2 Dm Meter tube pipe ID TDm Float inches mm 1031 3 4 TDm Meter tube measuring temp Float Deg F Deg C 1033 5 6 dm Orifice plate bore Tdm Float inches mm 1035 7 8 Tdm Orifice plate measuring temp Float Deg F Deg C 1037 9 10 Viscosity Float cP cP 1039 11 12 Density T P if User Entered selected Float lb ft3 kg m3 1041 13 14 Density base if User Entered selected Float lb ft3 kg m3 1043 15 16 Low Flow Cutoff Float in H20 KPA 1045 17 18 Diff P Scaling Min value Float in H2O kPa 1047 19 20 Diff P Scaling Max value Float in H2O kPa 1049 21 22 Tf Scaling Min value Float Deg F Deg C 1051 23 24 Tf Scaling Max Value Float Deg F Deg C 1053 25 26 Pf Scaling Min value Float PSIA kPa 1055 27 28 Pf Scaling Max Value Float PSIA kPa 1057 29 30 Spare Float 1059 Where Meter Configuration Control Word Binary pattern This Control
74. f hours behind GMT An entered value of 80 means 8 0 hours to the module End of Day Rollover xx Hour The End of Day Rollover parameter is used to configure the Hour of the day when the daily flow accumulation values will be placed into the historical storage buffer and the current values will be reset The rollover occurs as soon as the module logic detects the beginning of the configured hour Number of Active Meter Runs xx Meter Runs The Number of Active Meter Runs parameter is used by the module to optimize calculation time and the number of block transfers that are executed at the end of each calculation sequence Valid values for this parameter are 1 10 with the module defaulting to 10 if a value of zero is entered Number of Modbus Data Read Blocks xx Blks The Number of Modbus Data Read Blocks parameter is used by the module in combination with the Number of Active Meter Runs parameter to determine the total number of block transfers to be executed at the end of each calculation sequence Valid values are from 1 to 80 with the module defaulting to 2 if a value of 0 is entered 25 26 4 3 The sum of the Number of Active Meters and the Number of Modbus Read Data Blocks determines the total number of block transfers executed at the end of each calculation sequence Gauge Press to Absolute Press Offset xx x PSIA kPa The Statis Pressure for each meter run can be entered in either Gauge or Absolute Pr
75. h the server searches only for parallel ports By default all parallel and serial ports are scanned com n address Specifies a serial port to use n Specifies the number of the serial port address specifies the address of the serial port If you omit n of address the Interink server searches all serial ports and uses the first port that il finds connected to the client If you specify the com switch and omit the 1pt switch the server searches only for serial ports By default all senal ports are scanned baud rate Sets a maximum seria baud Valid values are 9600 19200 38400 57600 and 115200 The default value is 115200 b Displays the Interink server screen in black and white You use this switch if you are having problems reading your monochrome monitor v Prevents conflicts with a computer s timer Specify this switch if you have a serial connection between computers and one of them stops running when you use Interink to access a drive or printer port roopy Copies Interink files from one computer to another provided that the computers are connected with the interink serial cable and that the mode command is available on the computer where you are installing Interink Chapter 4 Use Interink to Connect a Computer Specifying the order of drives Interink redirects drives in the order that you specify The first server drive specified is redirected to the first available client drive the second
76. haracters The receiving station executes the same calculation on the data and verifies the transmitted LRC Any discrepancy will cause the message to be disregarded Parity Parity checking can be added as an additional level of data security If parity checking is selected even or odd parity can be implemented 3 2 Module Memory Layout Revised 3 21 01 Revised 3 21 01 This section serves to explain the different segments of the memory which are utilized in the PLC and in the 2100 Module The 2100 module maintains several segments of memory Modbus Data Memory Communications Configuration Memory AGA Data Memory Data values are moved over the backplane between the module and the processor using the Block Transfer capabilities of the PLC 3 2 1 Modbus Data Memory The Modbus register address range of 0 to 999 is considered the Modbus Data Memory In order to understand how the module handles the data memory it is easier if the discussion is broken down into Read and Write Memory Read Memory This memory contains the data which services read data requests from a Master i e Function Codes 1 2 3 and 4 This memory is maintained in the 2100 module and services the data read requests directly Data is transferred from the PLC to the module asynchronously from the Master s data read requests This allows the application ladder logic to manipulate and position the data as needed before transfer to the module Since the
77. have not used one of products previously you should add Section II to the list of important reading while scanning the remaining sections The key concepts to understand that will help you the most in working with our module is the memory paging between the PLC and the module This is discussed in an overview fashion in Section II while the actual data structures are discussed in Section III and IV The AGA Calculations The Flow and Compressibility calculations used in this product have been implemented as published in the 1992 American Gas Association Report No 3 and No 8 publications including the latest known erratas and the latest AGA 7 publication These equations are quite extensive and based on years of work by experts in their fields We recommend that key decisions involving the configuration data and or the operation of the product should be made by those familiar with the ramifications and therefore familiar with the AGA Reports This page intentionally left blank Product Revision History Revision 1 9 1 92 2 01 2 02 1 98 2 03 2 04 2 05 2 06 2 08 Date 7 25 95 1 6 95 8 30 96 7 12 97 01 12 98 04 12 98 12 02 98 06 01 99 07 01 99 04 08 00 01 19 01 Description of Changes Added the Modbus Master functionality Added the code necessary to support the Energy rate and totalization Added several configuration control bits to disable BTU calc and to enable the Fw Calculat
78. he Pressure Transmitter for the meter run These values are used to range the unscaled 0 4095 real time value 4 3 2 Meter Run Configuration Data AGA 7 Turbine Linear Analog Meters The Meter Run Configuration Data block consists of meter run specific configuration data Data must be entered for each meter run that will be operational The structure of the data block is different between the AGA 3 and AGA 7 equations after the Flow Calc Select bit This bit determines which equation set will be used Values entered in words 0 9 are not used by the module until the Configuration Enable bit word 10 Section 4 4 2 is set Meter Run Configuration Data AGA 7 Meter type Modbus addresses shown only for Meter 1 Data Modbus Wrd Description Format Units Address 0 Meter Configuration Control Word 1030 1 2 Dm Meter tube pipe ID Float inches mm 1031 3 4 K Factor Float pulses ft3 1033 5 6 Spare Float pulses m3 1035 7 8 Spare Float 1037 9 10 Spare Float 1039 11 12 Density T P if User Entered selected Float lb ft3 kg m3 1041 13 14 Density base if User Entered selected Float lb ft3 kg m3 1043 15 16 Low Flow Cutoff Float in H20 KPA 1045 17 18 Analog Pulse rate Scaling Min value Float ft3 s m3 hr 1047 19 20 Analog Pulse rate Scaling Max value Float ft3 s m3 hr 1049 21 22 Tf Scaling Min value Float Deg F Deg C 1051 23 24 Tf Scaling Max Value Float Deg F Deg C 1053 25 26 Pf Scaling
79. he accumulated and average results for the last Contract Period Unless overridden by meter control bits whenever the Force End of Day Rollover bit in the Flow Calc Control Word is set the contract period is one day in length starting and ending at the End of Day Rollover Hour as detailed in Section 4 2 2 The structure of the data block is as follows Revised 3 21 01 Revised 3 21 01 Meter Run Summary Data Last Period Modbus Addresses shown only for Meter 1 Data Modbus Wrd Description Format Units Address 38 Status flags 2240 39 Status flags word 2 2241 40 41 Timestamp Long int 2242 42 43 Totalized Flow float 2244 44 45 Totalized Energy float future 2246 46 47 Average Flow Rate float 2248 48 49 Average Flowing Pressure float 2250 50 51 Average Flowing Temperature float 2252 52 53 Spare float 2254 54 55 Time Away float 2256 56 57 Meter On Production Time float 2258 58 59 Sequence Counter float 2260 60 61 Spare float 2262 Where Control Status Flags Binary pattern The Control Status Flags word is contains several different values encoded and embedded within the word The bit fields are defined as follows Bit 2 10 15 Description Meter Freeze Status This bit indicates the Run status of the meter When set 1 the meter is stopped with the meter flow rate at 0 and the compressibility and flow rate calculations not being performed The module is in this state as a result of receiving
80. ile as originally provided is as follows Note that if your file gets corrupted you may clip out the following text and save to MBM CFG This first line of the file should be Modbus Master Modbus Master bits 1 par 0 stop 0 baud 5 rtson 1 rtsoff 1 timout 2000 retry 1 mode 0 The meaning of these parameters is as follows bits 1 The number of data bits each character should have In RTU this should always be a 1 representing 8 data bits 0 7 bits 1 8 bits par 0 The parity which the Modbus Slave should operate with Valid values are 0 None 1 Odd 2 Even stop 0 The number of stop bits Valid values are 0 1 Stop bit 1 2 Stop bits baud 7 The baud rate at which the slave port should operate Valid values are 0 300 baud 1 600 baud 2 1200 baud 3 2400 baud 4 4800 baud 5 9600 baud 6 19200 baud rtson 1 RTS to TXD delay for modem warmup or otherwise are required Time interval is in ms 5 5ms rtsoff 1 RTS OFF DELAY for delaying turning off modems or line drivers Time interval is in ms 5 5ms timeout 2000 Number of ms to wait after issuing a command to a slave before considering the slave non responsive retry 1 Number of times that the master should retry the command before considering the slave non responsive mode 0 Selects between RTU and ASCII modes 0 RTU 1 ASCII Configuring Commands The PCMAIN EXE looks for a file called MBM CMD in the local directory If this file is not foun
81. ins the accumulated and average results for the current Contract Period Unless overridden by meter control bits whenever the Force End of Day Rollover bit in the Flow Calc Control Word is set the Contract Period is one day in length starting and ending at the End of Day Rollover Hour as detailed in Section 4 2 2 The structure of the data block is as follows Meter Run Summary Data Modbus Addresses shown only for Meter 1 Data Modbus Wrd Description Format Units Address 14 15 Totalized Flow float 1814 16 17 Totalized Energy float 1816 18 19 Average Diff Press float 1818 20 21 Average Flowing Pressure float 1820 22 23 Average Flowing Temperature float 1822 24 25 Totalized Energy Daily Contract Period float 1824 26 27 Time Away float 1826 28 29 Meter On Production Time float 1828 30 31 Sequence Counter float 1830 32 33 Meter On ProductionTime Daily Contract Period float 1832 34 35 Totalized Flow Daily Contract Period float 1834 36 37 Timestamp current seq long int 1836 Where Totalized Flow M MCF E3 m3 The Accumulated Flow volume represents the summation over time of the Volumetric Flow Rate The value is reset during the End of Day Rollover process or whenever the Reset Meter command is received in the Meter Control Word Totalized Energy MYMBTU The Accumulated Energy represents the summation over time of the heating value of the gas This value is reset during the End of Day Rollover proces
82. ion AGA 8 Configuration Word AGA 3 and 7 results can be modified by the Fw Factor English Units Only Added a new variable called Totalized Energy Daily Contract Period to current data Used up spare register to do this Added ability to disable contract period rollover End of Day on a per meter basis The bit to enable and disable the rollover was added to the Meter Configuration Word bit 4 Fix MBM driver to support ASCII protocol Compile MBMDRV C and PCMAIN C rev date only Modified mbm cfg file to add mode selection Fix AGA7 rollover at 1000000 Had constant entered with commas and compiler did not like it Changed to 10000000 entry and changed working number flow_pulses to unsigned long int Problem has gone away Worked on protecting against date lockup when PLC is first init with month day as 0 This was causing an invalid lookup in day calc handling routine Also put some logic in to account better for year 2000 Fix PCAGA where it calls Pf_calc no matter if run is cfg for AGAS or AGA7 Causes a problem if cfg for AGA 7 w AGA 8 turned on Fix AGA7 C and the handling of energy calculation Was only occuring in aga3 mode and not in aga7 09 13 98 Fix Energy calc value as is not getting zeroed out when the AGA3 gas flow rate goes to 0 due to low flow cutoff Added logic in BT routine to count up to 5 times of bad time before flagging to screen Putin to address problem that seems to be arising with EIP modules with o
83. iple Register Write Diagnostics The following diagnostic command is supported 8 Loopback Test Code 0 3 1 3 Command Error Checking When the Modbus Slave cannot execute a command an error code is generated and returned to the master Error codes generated at the slave will usually be indicative of an illegal function an illegal address bad data or the inability to complete a transaction because of a network problem Error codes are note returned under states of failed or tentative communications such as bad checksum 3 1 4 Data Integrity As in all good protocols there must exist a level of data integrity checking to verify with some degree of assurance the quality of the transmitted data The Modbus protocol supports two types of error checking e RTU Mode 16 bit cyclic redundancy check CRC 16 ASCII Mode 8 bit longitudinal redundancy check LRC e One bit parity check CRC 16 When the master generates a message a 16 bit CRC value is added to the end of the transmitted packet The CRC value is generated using a series of bit shifts and manipulations The receiving station executes the same calculation on the data and verifies the transmitted CRC Any discrepancy will cause the message to be disregarded LRC When the master generates a message in the ASCII mode an 8 bit LRC value is added to the end of the transmitted packet The LRC value is generated by two s complementing the result of a binary summation on the c
84. ised 3 21 01 2 8 Revised 3 21 01 Each serial port can be configured by setting a jumper located on the top of the module The jumpers are easily reached without disassembly of the module when the module is removed from the I O chassis Appendix B details the cabling necessary to support RS 232 RS 422 and RS 485 The RS 422 transmitter is controlled by the RTS line In the RS 422 mode the receiver is always enabled In the RS 485 mode the transmitter and receiver are controlled by the RTS line with the transmitter enabled when RTS is true and the receiver enabled when RTS is false Installing the AGA Software The 2100 module s software is supplied with the initial purchase of the module on a PCMCIA Flash Memory Card 2 8 1 Initial Installation In order to install the software on the module 1 Insert the PCMCIA card into the slot on the module 2 Power up the I O rack or press the reset button on the module 3 Leave the card in the PCMCIA slot in case of system power fail With the card in the slot the system will automatically power up and re start the AGA calculation process 2 8 2 Upgrading an Operating Module Provisions in the implementation of the 2100 module have been made to allow Users to easily update the AGA software to the latest release The update software will be made available through our Bulletin Board BBS to all Users who have completed one of our Product Registration Forms Special software pr
85. ity and density as measured at flowing actual conditions This value is defined as Q in the AGA 3 1992 specifications The value is presented in MCFD m3 h or MMCFD E3 m3 h depending on the scaling selection made in the Meter Configuration Control Word Energy Flow Rate M MBTUD The Energy Flow Rate is the output of the AGA 3 flow calculation equations compensated for compressibility and density as measured at flowing actual conditions The value is presented in MBTUD or MMBTUD depending on the scaling selection made in the Meter Configuration Control Word Z AGA 8 Compressibility Factor factor The Z Compressibility Factor represents the output value from the AGA 8 calculations This value is provided for information purposes only as its effect is already built into the gas flow rate and total values Density at Flowing T P lbm ft3 kg m3 The Density at Flowing T P represents the value calculated by the AGA 8 calculations This value is provided for information purposes only as its effect is already built into the gas flow rate and total values 45 46 5 3 2 Density at Base T P lbm ft3 kg m3 The Density at Base T P represents the value calculated by the AGA 8 calculations This value is provided for information purposes only as its effect is already built into the gas flow rate and total values Meter Run Summary Data Current Period The Meter Run Summary Data for the Current Period block conta
86. ld PLC5 units Fix Modbus Slave driver problem where rx_sum was not called in time to prevent response bytes to be sent even w bad crc fc Add logic to allow the BTU value to be input from the PLC code detects if value is gt 0 and uses PLC value For questar Fixed Modbus master so that it would read more than one slaves command list from the MBM CMD file This page intentionally left blank TABLE OF CONTENTS 3 PRODUGT OVERVIEW OS Me E Ge Ge Ge encore ed 1 1 1 Product Specifications iese AA RA AA RA ee ee ee ee ee 1 1 2 Items included as part of 2100 module see Re ee 2 II INSTALLING THE MODULE esse sesse ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee ee RA ee denent nenene drei 5 2 1 Locating the Module in VO Chassis ees AR ee de ke 5 2 2 Placing the Keying BandS eie ee RR RA RA AA ee ed ee ee ke ee ee 5 2 3 Installing Battery Backup JUMDEF esse ke ee AA RA AA ee de eke ee ee 5 2 4 Inserting Module in ChassiS iss ee Re ed ee ee ed ee 6 2 5 Connecting a MONILOF ee ee ee RA RA ee ee RA ee ee de ee 7 2 6 Connecting a Keyboard iese ee AR RA ee de ee ee ee ed ee ee 8 2 7 Serial Port Connectors and JumperS iese ees ed dd Re ee ed ee 8 2 8 Installing the AGA Software ese ee AA Re ee ee ee ee 9 2 8 1 Initial InstallatiON ee ee RA RA AA ee ek ke ee ee 9 2 8 2 Upgrading an Operating Module iese RA Re ee 9 2 9 Using the VGA Data Display
87. le Spare in 2100 module Spare in 2100 module Spare in 2100 module Meter Meter Meter Meter Meter Meter Meter Meter Meter Meter 1 2 3 4 5 6 7 8 9 10 1030 1100 1170 1240 1310 1380 1450 1520 1590 1660 1031 1101 1171 1241 1311 1381 1451 1521 1591 1661 1033 1103 1173 1243 1313 1383 1453 1523 1593 1663 1035 1105 1175 1245 1315 1385 1455 1525 1595 1665 1037 1107 1177 1247 1317 1387 1457 1527 1597 1667 1039 1109 1179 1249 1319 1389 1459 1529 1599 1669 1041 1111 1181 1251 1321 1391 1461 1531 1601 1671 1043 1113 1183 1253 1323 1393 1463 1533 1603 1673 1045 1115 1185 1255 1325 1395 1465 1535 1605 1675 1047 1117 1187 1257 1327 1397 1467 1537 1607 1677 1049 1119 1189 1259 1329 1399 1469 1539 1609 1679 1051 1121 1191 1261 1331 1401 1471 1541 1611 1681 1053 1123 1193 1263 1333 1403 1473 1543 1613 1683 1055 1125 1195 1265 1335 1405 1475 1545 1615 1685 1057 1127 1197 1267 1337 1407 1477 1547 1617 1687 1059 1129 1199 1269 1339 1409 1479 1549 1619 1689 1061 1131 1201 1271 1341 1411 1481 1551 1621 1691 1062 1132 1202 1272 1342 1412 1482 1552 1622 1692 1063 1133 1203 1273 1343 1413 1483 1553 1623 1693 1064 1134 1204 1274 1344 1414 1484 1554 1624 1694 1065 1135 1205 1275 1345 1415 1485 1555 1625 1695 1066 1136 1206 1276 1346 1416 1486 1556 1626 1696 1067 1137 1207 1277 1347 1417 1487 1557 1627 1697 1068 1138 1208 1278 1348 1418 1488 1558 1628 1698 1069 1139 1209 1279 1349 1419 1489 1559 1629 1699 1070 1140 1210 1280 1350 1420 1490 1560 1630 1700 1071 1141 1211 1
88. lumetric Flow Rate Energy Flow rate Z AGA 8 Compressibility Factor Gas Density flowing T P Gas Density Base Conditions Spare Totalized Flow Current Totalized Energy Current Average Diff Press Current Average Flowing Pressure Current Average Flowing Temperature Current Totalized Energy Daily Contract Period Time away Current On Production Time Current Sequence Counter On Production Time Daily Contract Period Totalized Flow Daily Contract Period Time Stamp Current Period Status flags Last Period Status flags word 2 Timestamp Totalized Flow Last Period Totalized Energy Last Period Average Diff Press Last Period Average Flowing Pressure Last Period Average Flowing Temperature Last Period Spare Time away Last Period On Production Time Last Period Sequence Counter Spare Revision 1 92 Modbus Address 1800 Run 1 1 when meter is frozen 1 when meter has been configured Power up or 255 Config since rollover Configuration has occured since rollover AGA 8 configuration has occured since rollover Meter has been frozen since rollover Meter reset has occured since rollover Instrument fail has been detected since rollover 1801 cleared after BTW w Last Period Data Acceptec 1 if bad time detected defaulted to current time Float M MCFD 1802 Float M MBTUD 1804 Float 1806 Float Ib ft3 1808 Float Ib ft3 1810 Float 1812 Float M MCF 1814 Float M MBTU 1816 Float
89. mand Reply Cycle Successful communications between a Modbus Slave and a Master will always consist of the following two transactions Command Message from master giving instruction to slave Reply Response to command A slave station will respond to a master issued command in several Data Message If the command was executed by the slave the response message will include the data requested or an acknowledgment that the command was executed Error Message If the command could not be executed by the slave for whatever reason an error response message is transmitted to the master The error response message consists of the original function code ord with 80hex and an error code No Reply If the master does not detect a reply within its timeout period the master should re transmit the command before a time out error is issued If the Slave could not decode the message or an error occurred preventing the Slave from recognizing the message no response will be issued Command Types The Modbus Slave can respond to three types of commands from the master read data write data and a diagnostic command These are overviewed below and detailed in Appendix C Read The following data read commands are supported 1 Read Output Status 2 Read Input Status 3 Read Multiple Registers 13 4 Read Input Registers Write Data The following data write commands are supported 5 Single Bit Write 6 Single Register Write 16 Mult
90. munications Status accumulators are reset to 0 anytime the module receives a new configuration data block from the processor Block ID 255 Module Status Codes The possible communication status codes returned in fields 1 and 2 of the Module Status Data block are detailed below Code Description 0 All OK The module is operating as desired 1 Illegal Function An illegal function code request has been received from the master 2 Illegal Data Address The address or the range of addresses covered by a request from the master are not within allowed limits 3 Illegal Data Value The value in the data field of the command is not allowed 41 42 5 3 6 Module Busy The module busy status code is returned when a write command from the master has not yet been completed when a second write command is received 254 Checksum Error The slave determined that the message checksum was in error and therefore discarded the message Meter Run Results Block ID 20 29 The ProSoft module maintains the results of the AGA flow calculation in data blocks for the PLC This section discusses how to get the Meter Run Flow calculation results from the 2100 module into the PLC and the meaning of the data The ProSoft module maintains several pieces of status and output information that are designed to provide detailed instantaneous data current period summary data and last period summary data Reading the Meter Run Results from the AG
91. n the Meter Control Word Spare Control Status Word Binary pattern This Spare Control Status Word is used to toggle and flag the occurrence of an end of period a rollover where data is shifted from the Current Period registers to the Historical registers The active bits have the following meanings Revised 3 21 01 Revised 3 21 01 Bit Description 0 New Data Status Flag This bit will toggle after the module has completed a rollover at the End of Day During this rollover data is transferred internally in the module and the Current Period registers are re initialized The Status Flag is cleared by the module 4 Last Calc Time Bad On Power Up On power up the Last Calc Time is retrieved from battery backed memory If this time is determined to be bad the module defaults the Last Calc Time to the current PLC time and then sets this flag When this flag is set there is a good change the Time Away value is in error 6 15 Instrument Fail Overflow and Underflow These bits store the occurrence of an Overflow and or an Underflow condition during the current period These conditions are detected based on bits 15 and 14 in the real time analog data The bits are simply ord into the status word and maintained until daily rollover Volumetric Flow Rate Contract M MCFD E3 m3 h The Volumetric Flow Rate Contract conditions is the output of the AGA 3 and 7 flow calculation equations compensated for compressibil
92. nd is complete may take about one minute disconnect the Serial Cable from the 2100 module and press the Reset Push button located behind the card removal handle When the 2100 module completes the reset process it will boot up into the AGA software and begin the calculation process Using the VGA Data Display Capabilities The 2100 AGA package supports the display of data to the VGA port on the front of the 2100 module In order to see this data and make the most use of it install a VGA monitor and keyboard as outlined earlier in this Section Once the monitor warms up the AGA Module Status Screen should be displaying the status of the enabled meter runs At this point the following keystrokes may be used to navigate through the available display options Meaning AGA Module Status Screen Revised 3 21 01 This screen displays four meter calculation results per screen To view more meters use the Right Arrow gt or Left Arrow lt keys h AGA Historical Storage Display Screen This screen displays the historical storage results for four meters per screen To view more meters use the Right Arrow gt or Left Arrow lt keys To scroll through the historical records up to 10 days worth use the PG UP and PG DN keys d Modbus Data Table screen This screen is a Data Table Format screen similar to what you would see with PLC programming software The registers which are displayed consist of the
93. nd to check memory Setting Up Interink 1 Connect the main module to the computer with the Interink serial cable 2 Copy INTERLNK EXE to the client main module and INTERSVR EXE to the server computer The server provides resources such as disk drives to the client 3 On the client main module use any text editor to add another line to the CONFIG SYS file that contains a device command for INTERLNK EXE The CONFIG SYS file is located in the root directory of the start up disk of your main module The device command should be on a line by itself Example This command specifies that INTERLNK EXE is located in the root directory on drive C device c interink exe Chapter 4 Use Interink to Connect a Computer 4 Reboot the client main module by pressing You see Communication is not established between client and server Microsoft Interlnk version 2 00 Connection NOT established Drive letters redirected 3 D through F Printer ports redirected 2 LPT2 through LP73 Indicates communication has not been established on this Interink client with an Interink server In this example drive C is on the main module All the drives on the server are automatically renamed D through F 5 Start the server Change to the directory where you copied the intersvr command At the command prompt type intersvr er See page 4 9 for more information about the inte
94. ne Frequency Low AGA 7 0 999 1066 37 Turbine pulse total High AGA 7 0 999 1067 38 Turbine pulse total Low AGA 7 0 9999 1068 39 Spare 1069 Where Revised 3 21 01 Revised 3 21 01 Meter Control Word Binary pattern This Control Word is used to perform control several meter specific setup functions The active bits have the following meanings Bit Description 0 Configuration Enable This bit will instruct the module to perform a re configuration of the meter run flow equations using the new values that have been entered in words 0 9 See Section 4 2 1 and 4 2 2 The module will return a Configuration Done bit which can be used to unlatch this bit 1 AGA 8 Configuration Enable This bit will instruct the module to perform a re configuration of the meter run AGA 8 Compressibility equations using the new values that have been entered See Section 4 4 4 The module will return an AGA 8 Configuration Done bit which can be used to unlatch this bit 2 Meter Freeze This bit will freeze the meter flow rate to 0 and will disable the compressibility and flow rate calculations while the bit is set 3 Meter Reset This bit when set will reset the meter accumulators to 0 No historical storage of the values is done This function is to assist in the metering of batches The module will return a Meter Reset Done bit which can be used to unlatch this bit 15 Instrument Fail Detected This bit when set by the PLC ladd
95. nfigurations that have occurred in the middle of Contract periods 24 hour Upon detecting a re configuration request from the PLC on command or on power up the 2100 module increments the Sequence Counter and cuts a new historical record shifting all current period Summary Data to the 1st day of historical storage Meter On Production Time Daily Contract Period Minutes This value represents the measured duration of the true contract period in minutes as measured from the last End Of Day Rollover Qualified by the low flow cut off configuration value gt and no stock transfer error This value is not reset on a module re configuration and is therefore a true representation of the Meter On Production Time for the Contract Period independent of the Sequence Counter This value is reset during the End Of Day Rollover process Totalized Flow Daily Contract Period M MCF E3 m3 This Totalized Flow value represents the summation of the Volumetric Flow Rate since the last End Of Day Rollover This value is reset during the End Of Day Rollover process Timestamp Current Seq Seconds since 1 1 70 This is the timestamp value for the beginning of the current accumulation sequence This value is used in a power down situation to provide the timestamp for the historical record when the module is powered back up Meter Run Summary Data Last Period The Meter Run Summary for the Last Period data block contains t
96. nnect POET CCHI Drive letters redirectec 3 ID through F to the other computer Printer ports redirected 2 LPT2 through LPT3 This Computer Cther Computer client Server Indicates the size and volume EER Eer n P D equals A labets of the hard disk drives E equals C 8SMb SYSTEM DISK on the server Interink software determines this mapping ME Mt AS ate Vin yf Chapter 4 Use Interink to Connect a Computer You see this screen when you start the server Communication is established between client and server This Computer Other Cosputer Server Ciient The status bar displays the status of the Interink connection Transfer Port COM2 Speed 115200 I AlteP4 Exit Indicates whether the client is reading or writing to the server When the client reads from or writes to Indicates the server port that is the server Interink displays an asterisk that used to connect to the client indicates which server resource is affected and its communication rate Changing Redirected If a device was assigned when you started Interink you can change the Devices redirection of the device on the client Use the interlnk command see page 4 8 to specify the server drive to which you want to redirect the client drive Example Suppose that client drive F is redirected to server drive C To redirect client drive F to server drive D type interlnk f d To cancel the redirecti
97. nstruction Module operation will be unpredictable otherwise Where BLOCK ID CODE A block identifier code between 0 and 255 in value This code is used by the 2100 module to determine what to do with the data block Valid codes are CODE DESCRIPTION 0 19 Modbus Data Memory 20 29 AGA Data Memory 255 Module Configuration Memory 256 266 Meter Run Initialization Data Revised 3 21 01 17 3 3 2 DATA The data to be written to the module The structure of the data is dependent on the Block ID code Section IV provides details on the structure of the data depending on the data type Receiving Master Write Commands from the Module This section discusses how to get data written to the Flow Processor module by a Master into the PLC s memory Supported Modbus Function Codes include 5 6 and 16 The transfer of data from the 2100 Flow Processor module to the PLC is executed through the Block Transfer Read function Four basic different types of data are read from the module into the processor The data structure for the block transfer depends on the type of data to be transferred and the Block ID The following provides an introduction to the data transfer while Section IV details the data structures The different types of data which are transferred require slightly different data block structures but the basic structure is WORD DESCRIPTION 0 Block ID code 1 63 Data The BTR file length must be configured for 64 w
98. ny misapplication of misuse of the Product b failure of Customer to adhere to any of ProSoft s specifications or instructions c neglect of abuse of or accident to the Product or d any associated or complementary equipment or software not furnished by ProSoft Limited warranty service may be obtained by delivering the Product to ProSoft and providing proof of purchase or receipt date Customer agrees to insure the Product or assume the risk of loss or damage in transit to prepay shipping charges to ProSoft and to use the original shipping container or equivalent Contact ProSoft Customer Service for further information Limitation of Liability EXCEPT AS EXPRESSLY PROVIDED HEREIN PROSOFT MAKES NO WARRANT OF ANY KIND EXPRESSED OR IMPLIED WITH RESPECT TO ANY EQUIPMENT PARTS OR SERVICES PROVIDED PURSUANT TO THIS AGREEMENT INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANT ABILITY AND FITNESS FOR A PARTICULAR PURPOSE NEITHER PROSOFT OR ITS DEALER SHALL BE LIABLE FOR ANY OTHER DAMAGES INCLUDING BUT NOT LIMITED TO DIRECT INDIRECT INCIDENTAL SPECIAL OR CONSEQUENTIAL DAMAGES WHETHER IN AN ACTION IN CONTRACT OR TORT INCLUDING NEGLIGENCE AND STRICT LIABILITY SUCH AS BUT NOT LIMITED TO LOSS OF ANTICIPATED PROFITS OR BENEFITS RESULTING FROM OR ARISING OUT OF OR IN CONNECTION WITH THE USE OR FURNISHING OF EQUIPMENT PARTS OR SERVICES HEREUNDER OR THE PERFORMANCE USE OR INABILITY TO USE THE SAME EVEN IF PROSOFT OR IT
99. ole Carbon Monoxide Concentration Mole Oxygen Concentration Mole i Butane Concentration Mole n Butane Concentration Mole i Pentane Concentration Mole n Pentane Concentration Mole n Hexane Concentration Mole n Heptane Concentration Mole n Octane Concentration Mole n Nonane Concentration Mole n Decane Concentration Mole Helium Concentration Mole Argon space Revision 1 92 Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Integer Upper 2 bits for alarms Upper 2 bits for alarms Upper 2 bits for alarms Upper 2 bits for alarms Upper 2 bits for alarms 1 Must be set 0 enable 1 disable 0 disable 1 enable xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole xx xx Mole Modbus Address 1030 1031 1033 1035 1037 1039 1041 1043 1045 1047 1049 1051 1053 1055 1057 1059 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 to 1099 Page 4 21
100. on as it pertains to the Multiple Bit Control command is WORD DESCRIPTION 0 Control Type 4 Multiple Bit Control 1 Word Count 2 Word Start Address 3 32 Data 30 words of bit sets resets 33 62 Mask image for 30 data words Where CONTROL TYPE Word 0 of the BTR buffer is used to tell the processor the type of Control action has been commanded from the Master When the value is equal to 4 a new Multiple Bit Control command has been received With simple ladder logic to decode this value the appropriate action can be taken COUNT This value represents the number of words in the data block that contain valid bit write data Valid numbers will range from 1 to 30 Note that because a master can write a bit length that is not equal to a full word it is possible that only a part of a data word will contain valid data The ladder logic should mask out the invalid bits should they be used elsewhere START ADDRESS This value represents the offset word address into which the bit write data block will start to be written When the master addresses a bit write it sends the starting bit address The starting bit address is used by the module to generate this word start address Bit address 16 DATA These registers contain the bit write data received from the master Note that partial word length bit writes are acceptable The mask bits and some PLC logic protects unaddressed bits within a common word MASK These words mask off the a
101. on of client drive F type interlnk f Chapter 4 Use Interink to Connect a Computer Breaking The Connection To break the Interlink connection stop the server On the server computer Between Computers keyboard press fav Using The Remote Copy If the Interlnk programs are located on only one of the two computers that Procedure you want to connect you can use the Interlink copy procedure to copy Interlink programs to the other computer To use the remote copy program s the computers must be connected through their serial ports by the Interink serial cable the MS DOS MODE command must be available on the computer where you are installing the Interlink program if you are using a port other than COM1 on the computer that you are copying files to make sure that you are not running Microsoft Share software on that computer If you are remove the share command from your AUTOEXEC BAT or CONFIG SYS file and restart your computer 1 Change to the directory where you want the interink files to reside 2 Atthe command prompt of the computer that has the Interink programs type intersvr rcopy You see The supplied Interink serial cable Interlink will copy its pregram files to another computer that is connected is a 7 wire nul modem cable to this one by a wire null modem cable see page D 12 Before continuing make sure the cable connects the two computer s serial ports Specify the serial porz of the
102. ords when programming the instruction Module operation will be unpredictable otherwise Where BLOCK ID CODE A block identifier code used by the Flow Processor module to determine what to do with the data block Valid codes are CODE DESCRIPTION 1 Register Write command from Master FC 6 or 16 2 Bit Set or Reset Write command from Master FC 5 4 Multiple Bit Write command from Master FC 15 20 29 AGA Data Memory read 255 Module is requesting configuration data 256 266 Module request for Meter Run initialization data DATA The data to be written to the PLC The structure of the data is dependent on the block ID code Section IV details the different structures Revised 3 21 01 IV DATA MOVEMENT PLC TO THE 2100 MODULE 4 0 Section Overview This section is dedicated to the movement of data from the PLC Ladder Logic to the 2100 module Several different types of data are required to be transferred to the 2100 module and this Section is broken down accordingly 4 1 Moving Data to Modbus Data Memory 4 1 1 Real Time Clock 4 2 Configuring the 2100 Module 4 2 1 Slave Port Configuration 4 2 2 Flow Calculation Configuration System Parms 4 3 Configuring the Meter Runs 4 3 1 Meter Run Config Data AGA 3 4 3 2 Meter Run Config Data AGA 7 4 3 3 Real Time Update Data 434 AGA 8 Configuration 4 1 Moving Data to Modbus Data Memory Block ID 0 to 19 Writing to the Modbus Data Memory in the 2100 module is a
103. ovided with the 2100 module is used to perform the upgrade Appendix D in this manual includes a detailed explanation on how this software works In order to execute an upgrade please follow the following procedure Items needed to perform Upgrade e Serial Cable supplied with 2100 module e PC laptop or otherwise e Downloaded file from ProSoft BBS loaded on PC e Spare keyboard 10 2 9 Download the new EXE file from the ProSoft BBS and place file on PC to be used to connect to 2100 module The procedure and passwords for this will be provided upon receipt of completed Product Registration Form Make sure the ProSoft Flash Ram card is n the PCMCIA socket Plug the Serial Cable supplied with the module into COM 3 on l the front of the 2100 module Plug the other end of the cable into COM 1 of a PC containing the upgrade EXE file Plug the spare keyboard into the 2100 module and press the F10 key The F10 key will take the 2100 out of the AGA run mode and invoke the Interlink server program INTERSVR EXE On the PC invoke the INTERLNK utility supplied with the 2100 module on the System Utilities diskette Prior to invoking INTERLNK several changes may have to be made to your system configuration files Appendix D includes a detailed explanation of the INTERLINK utility to assist you in this effort From the PC invoke the following command COPY pathname PCMAIN EXE dest drivr Once the copy comma
104. pecial consideration Floating Point FP data is stored in the module in IEEE 784 format with two words per value Depending on the host package the orientation of these two words may need to be swapped in order to successfully use the data value 6 2 1 6 2 2 Reading Floating Point Values Function Code 3 is used to read FP values from the 2100 module In order to access FP values the command must be configured to request 2 words per desired value with a starting address offset by 7000 The base starting address can be determined from Appendix A With a starting address offset by 7000 the word pairs will be swapped by the module while building the response message If no swapping is required the host can read the data in pairs without including the 7000 offset in the address Writing Floating Point Values Revised 3 21 01 Revised 3 21 01 Function Code 16 is used to write FP values to the 2100 module In order to access FP values the command must be configured to write 2 words per desired value with a starting address offset by 7000 The base starting address can be determined from Appendix A As the data is received by the module it is moved into the BTR buffer space Up to 15 FP values may be written at a time in this fashion With a starting address offset by 7000 the word pairs will be swapped by the module while moving the data to the BTR buffer If no swapping is required the host can write the data in pairs witho
105. play meter run calculation results directly out of the module This section details the hardware connection while a later section details how the VGA interface functions with a keyboard Use only VGA compatible monitors with an analog type interface Generic analog monitors are listed as either analog interlaced or analog non interlaced with a dot pitch resolution The following monitors are listed by Allen Bradley as having been tested but are not supported by Allen Bradley NEC Multisync II Model NEC JC 1402 IBM PS 2 Monochrome display IBM 8503 001 Panasonic Panasync C1395 Panasonic Panasync C1381i Samsung CJ4681 Color Monitor Some analog monitors have a 9 pin connector rather than the 15 pin connector To convert from the 9 pin to the 15 pin head the G amp C 45 590 9 15 pin adapter is recommended If a TTL type monitor is used the video will be distorted and equipment could be damaged if connected under power for a prolonged period of time 2 6 Connecting a Keyboard Any AT style keyboard can be connected to the 2100 PS 2 keyboards require a special adapter Radio Shack 90 2441 2 7 Serial Port Connectors and Jumpers The 2100 module has three 9 pin connectors for serial ports Each serial port maintains 500 volts of isolation from the backplane and is isolated from the other serial port by 500 volts At this time only COM1 is activated supporting Modbus Slave functionality Rev
106. ract Conditions float 1802 4 5 Energy Flow Rate float future 1804 6 7 Z AGA 8 Compressibility Factor float 1806 8 9 Gas Density Flowing T P float 1808 10 11 Gas Density Base conditions 14 7 psia 60 F float 1810 12 13 Spare float 1812 Where Meter Status Word Binary pattern This Meter Status Word is used to toggle and flag the status of meter specific events occurring in the module The active bits have the following meanings Bit 0 Description Configuration Done This bit will toggle after the module has completed a re configuration of the meter run flow equations using the new values that have been entered The module has performed this configuration as a result of receiving a Configuration Enable bit from the Meter Control Word AGA 8 Configuration Done This bit will toggle after the module has completed a re configuration of the AGA 8 compressibility equations using the new values that have been received from the PLC The module has performed this configuration as a result of receiving an AGA 8 Configuration Enable bit from the Meter Control Word Meter Freeze Status This bit indicates the Run status of the meter When set 1 the meter is stopped with the meter flow rate at 0 and the compressibility and flow rate calculations not being performed The module is in this state as a result of 43 44 10 11 12 13 14 15 receiving the Meter Freeze bit from the Meter Control Word Meter
107. rent 1828 1868 1908 1948 1988 2028 2068 2108 2148 2188 F 34 Sequence Counter 1830 1870 1910 1950 1990 2030 2070 2110 2150 2190 F 35 On Production Time Daily Contract Period 1832 1872 1912 1952 1992 2032 2072 2112 2152 2192 F 36 Totalized Flow Daily Contract Period 1834 1874 1914 1954 1994 2034 2074 2114 2154 2194 F 37 Timestamp Current 1836 1876 1916 1956 1996 2036 2076 2116 2156 2196 N A Spare in 2100 module 1838 1878 1918 1958 1998 2038 2078 2118 2158 2198 N A Spare in 2100 module 1839 1879 1919 1959 1999 2039 2079 2119 2159 2199 Meter Run Summary Data Historical Last Period N 62 Status flags Last Period 2240 2540 2840 3140 3440 3740 4040 4340 4640 4940 N 63 Status flags word 2 2241 2541 2841 3141 3441 3741 4041 4341 4641 4941 F 40 Timestamp 2242 2542 2842 3142 3442 3742 4042 4342 4642 4942 F 41 Totalized Flow Last Period 2244 2544 2844 3144 3444 3744 4044 4344 4644 4944 F 42 Totalized Energy Last Period 2246 2546 2846 3146 3446 3746 4046 4346 4646 4946 F 43 Average Flow Rate Last Period 2248 2548 2848 3148 3448 3748 4048 4348 4648 4948 F 44 Average Flowing Pressure Last Period 2250 2550 2850 3150 3450 3750 4050 4350 4650 4950 F 45 Average Flowing Temperature Last Period 2252 2552 2852 3152 3452 3752 4052 4352 4652 4952 F 46 Spare 2254 2554 2854 3154 3454 3754 4054 4354 4654 4954 F 47 Time away Last Period 2256 2556 2856 3156 3456 3756 4056 4356 4656 4956 F 48 On Production Time Last Period 2258 2558
108. ressure realtime value Spare Spare Spare Spare Spare AGA 8 Update Control Word Concentration Mole Methane Concentration Mole Nitrogen Concentration Mole Carbon Dioxide Concentration Mole Ethane Concentration Mole Propane Concentration Mole Water Concentration Mole Hydrogen Sulfide Concentration Mole Hydrogen Concentration Mole Carbon Monoxide Concentration Mole Oxygen Concentration Mole i Butane Concentration Mole n Butane Concentration Mole i Pentane Concentration Mole n Pentane Concentration Mole n Hexane Concentration Concentration Concentration Mo Concentration Mole n Heptane Mo Mo le n Octane le n Nonane le n Decane Concentration Mole Helium Concentration Mo le Argon space Spare in 2100 module Spare in 2100 module Spare in 2100 module Spare in 2100 module Spare in 2100 module Spare in 2100 module Spare in 2100 module Meter Meter Meter Meter Meter Meter Meter Meter Meter Meter 1 2 3 4 5 6 7 8 9 10 1030 1100 1170 1240 1310 1380 1450 1520 1590 1660 1031 1101 1171 1241 1311 1381 1451 1521 1591 1661 1033 1103 1173 1243 1313 1383 1453 1523 1593 1663 1035 1105 1175 1245 1315 1385 1455 1525 1595 1665 1037 1107 1177 1247 1317 1387 1457 1527 1597 1667 1039 1109 1179 1249 1319 1389 1459 1529 1599 1669 1041 1111 1181 1251 1321 1391 1461 1531 1601 1671 1043 1113 1183 1
109. ric Block Transfer Rack 000 CDN gt Group 2 Module 0 CER Control Block N7 300 Data File N7 310 Length 64 Continuous No Page 4 Thursday July 08 1999 09 48 47 AGASSI RSP LAD 3 AGA_MAIN Total Rungs in File 14 BT READ AND MODBUS FC 6 16 REGISTER WRITE DECODING BT READ from module If BT READ Block ID is 1 then decodes length and destination address of write data from master BT READ BT WRITE BT READ FROM ENABLE ENABLE MODULE N7 300 N7 400 BTR 0008 H Block Transfer Read C EN gt 15 15 Module Type Generic Block Transfer Rack 000 DN Group 2 Module 0 lt ER gt Control Block N7 400 Data File N7 410 Length 64 Continuous No DECODE FC6 amp 16 BT READ BT READ COPY WRITE DONE BIT BLOCK ID LENGTH N7 400 EQU MOV 4h Equal Move 13 Source A N7 410 Source N7 411 0 lt 0 lt Source B 1 Dest R11 0 LEN le 0 lt FC6 amp 16 COPY WRITE DATA FAL File Arith Logical END Control R11 0 Length 0 lt CDN gt Position 0 lt Mode ALL CER gt Dest N10 N7 412 0 lt Expression N7 413 BLOCK 0 MODULE STATUS READ and MODBUS MASTER DATA When BTR Block ID is 0 the Modbus slave status is available as well as the Modbus Master port data DECODE COPYING BT READ BT READ MODULE DONE BIT BLOCK ID
110. rmation on see page Interink programs 4 1 What You Need to Use Interink 42 Setting Up Interink 42 Changing Redirected Drives 45 Breaking The Connection Between Computers 45 Using The Remote Copy Procedure 4 6 Interink Commands 48 About Interink Using Interink software you can a easily transfer files between the main module and a computer use a computer to run programs on the main module use a computer to access information on the main module You need these two files INTERLNK EXE a device driver that you install in the CONFIG SYS file on the main module The program is resident on the boot ROM card INTERSVR EXE a program that you run from the command line or batch file on the computer The program is resident on the utility diskette Chapter 4 Use Interink to Connect a Computer What You Need to Use To use Interink you need Interink serial ports on both the main module and the computer the serial port you use on the main module must be set to RS 232 the provided Interlink serial cable see wiring diagram on page D 12 If you want to use a parallel cable you can use a Laplink parallel cable or make a cable using the wiring diagram on page D 12 a MS DOS version 3 0 or later on both the main module and the computer a 16 Kbytes main module and 130 Kbytes computer of available RAM after MS DOS software any applications and TSR programs are loaded Use the MS DOS MEM EXE comma
111. rsvr command You see Communication is not established between client and server This column lists the drives and printer ports on the server This Computer Other Computer Server client This column lists the drives and printer ports on the client that represent drives and ports on the server Communication has not been established with the client so this column is empty Alt PF4 Exit Chapter 4 Use Interink to Connect a Computer 6 Establish communication between the client and server Change to the directory where you copied the interink file At the command prompt type See page 4 8 for more information about the interink command interlnk Example Drive D on the client is redirected to drive A on the server This means Interink also establishes connections that any command given to drive D on the client will actually be between all redirected drives and performed on drive A of the server To establish a connection type the ports when you drive letter of the redirected drive which is drive D restart the chent while the server is running make a redirected drive on the client the active drive d Reum Interink automatically connects to the server when you specify a redirected drive You see this screen when you start the client Communication is established between client and server Microsoft Interlink versier 1 00 Indicates which port is used to co
112. s or whenever the Reset Meter command is received in the Meter Control Word Average Diff Press PSI kpa The Average Diff Pressure represents the Flow dependent time weighted linear average of the measured differential pressure The differential pressure is sampled once per second Revised 3 21 01 Revised 3 21 01 Average Flowing Temperature Deg F Deg C The Average Flowing Temperature represents the Flow dependent time weighted linear average of the flowing temperature The temperature is sampled once per second from the module s data independent of the update data rate from the PLC Average Flowing Pressure PSIA kPa The Average Flowing Pressure represents the Flow dependent time weighted linear average of the flowing pressure The pressure is sampled once per second from the module s data independent of the update data rate from the PLC The Flow dependent time weighted linear average calculation method used does not increment the averages during the sampling period if there is a no or low flow condition In all average value cases the actual values are sampled once per second and accumulated in the module but the calculated output values returned to the PLC and to the VGA display are only updated once per minute Totalized Energy Daily Contract Period M BTU E3 J3 This Totalized Energy value represents the summation of the Energy Flow Rate since the last End Of Day Rollover This valu
113. sary for the module to perform the Detailed Characterization Method compressibility calculations The Detailed Method requires a total gas analysis with composition in either mole percents or mole fractions Values entered in words 40 61 are not used by the module until the AGA 8 Configuration Enable bit word 10 Section 4 4 2 is set or until the Configuration Enable bit Word 10 bit 0 is set 40 4 42 43 44 45 46 47 AGA 8 Configuration Data Modbus addresses shown only for Meter 1 Data Wrd Modbus Description Format Units Address AGA 8 Update Control Word 1070 Concentration Methane xx xx Mole 1071 Concentration Nitrogen xx xx Mole 1072 Concentration Carbon Dioxide xx xx Mole 1073 Concentration Ethane xx xx Mole 1074 Concentration Propane xx xx Mole 1075 Concentration Water xx xx Mole 1076 Concentration Hydrogen Sulfide xx xx Mole 1077 Concentration Hydrogen xx xx Mole 1078 Concentration Carbon Monoxide xx xx Mole 1079 Concentration Oxygen xx xx Mole 1080 Concentration i Butine xx xx Mole 1081 Concentration n Butane xx xx Mole 1082 Concentration i Pentane xx xx Mole 1083 Concentration n Pentane xx xx Mole 1084 Concentration n Hexane xx xx Mole 1085 Concentration n Heptane xx xx Mole 1086 Concentration n Octane xx xx Mole 1087 Concentration n Nonane xx xx Mole 1088 Concentration n Decane xx xx Mole 1089 Concentration Helium
114. se and Exponent cP The viscosity base and exponent values are used together to enter the fluid viscosity in centipoise Appendix C contains a chart from the GPSA manual for gas viscosities Density T P User Entered lom ft3 kg m3 This value is the User Entered density which will be used to calculate flow at process conditions if the meter run Compressibility Calc Type word 0 bits 10 11 is set for User Entered Values Density Base User Entered lom ft3 kg m3 This value is the User Entered density which will be used to calculate flow at base conditions if the meter run Compressibility Calc Type word 0 bits 10 11 is set for User Entered Values Low Flow Cutoff inches of water kPa The entered value represents the low flow cutoff differential pressure Any measured differential pressure less than the Low Flow Cutoff value will force the measured flow to zero 0 0 Diff Pressure Scaling Min Max inches of water kPa The Minimum and Maximum scaling values represent the range of the Differential Pressure Transmitter for the meter run These values are used to range the unscaled 0 4095 real time value Tf Scaling Min Max Deg F Deg C The Minimum and Maximum scaling values represent the range of the Temperature Transmitter for the meter run These values are used to range the unscaled 0 4095 real time value 29 Pf Scaling Min Max PSIA kPa The Minimum and Maximum scaling values represent the range of t
115. server drive specified is redirected to the second available client drive and so forth Redirected devices Interlink does not redirect network CD ROM drives or any other device that uses a redirection interface Using a serial mouse with Microsoft Windows If you are using a serial mouse with Microsoft Windows and you start the Interlnk server while Windows is running specify the com switch that designates a COM port other than the one the mouse is using Using Interink in a task switching or multitasking environment If you start the Interlnk server in a task switching or multitasking environment task switching and key combinations that switch you out of your current task are disabled To restore these functions quit the server These commands do not work with the Interlink server a chkdsk mirror a diskcomp sys a diskcopy undelete a format unformat APPENDIX E PLC 5 Example Ladder Logic Note that the example PLC 5 ladder program files are available on the ProSoft Technology Inc BBS See Section 7 for instructions AGASSI RSP LAD 2 MAIN Total Rungs in File 2 JSR 0000 Jump To Subroutine Prog File Number U 3 0001 CEND Page 1 Thursday July 08 1999 09 48 39 AGASSI RSP LAD 3 AGA_MAIN Total Rungs in File 14 CONFIGURATION The card configuration is activated on first scan or when the module identifies it needs to be configured 1ST SCAN STA
116. shipped as one complete unit from the factory with hardware software and several items needed to support the product long term Included in the 2100 package from ProSoft should be the following items tem Description 1 Allen Bradley 1771 DSX2 Module The hardware used as the platform for the 2100 module 2 PCMCIA Flash Ram Card This card marked with a ProSoft sticker indicating the serial number and revision level must be installed in the DSX2 per Section 2 8 of this User Manual Revised 3 21 01 Revised 3 21 01 Utility Diskette 3 5 This diskette contains the files necessary to setup and Interlink connection between the 2100 module and a PC This utility will be used when it is necessary to upgrade the AGA software Serial Cable Rev ACT302 This cable is used in combination with the Interlink utility to connect a PC to the 2100 module during the software upgrade process described in Section 2 8 Remote Reset Connector Kit These components are used to interface an I O module to the 2100 reset circuitry Please call us at 661 664 7208 if you desire to install this option We will fax you a connection diagram 9 25 Pin Converter This converter is provided at assist in connecting the Serial Cable to the PC during the software upgrade Example Ladder Logic diskette This diskette contains example PLC 5 ladder logic to implement up to 10 flow meters on the 2100 module Also included is an Excel spreadsheet of the r
117. simple Block Transfer Write with Block ID Codes from 0 to 19 followed by 50 words of data The data that is to be made available to the Modbus Master for reading is written into the module in this fashion The actual data table is built starting at word 0 Block ID 0 word 0 and is built incrementally after this The full range of the table is 0 to 999 As an example the following memory table demonstrates the relationship between the processor data table the module data table and the protocol addressing Assuming we are using N10 as the data file in the PLC the data will map as follows Proc Bik ID Module Modbus Addr Word Addr Addr N10 0 0 0 0 0 N10 1 0 1 1 1 N10 2 0 2 2 2 N10 49 0 49 49 49 N10 50 1 0 50 50 N10 51 1 1 51 51 N10 99 1 49 99 99 By paging the different data blocks into the module on a continuous basis the module will always contain relatively current data Revised 3 21 01 19 20 4 2 The example ladder logic in Appendix A demonstrates how to execute the data write for Block ID 0 50 words of data 4 1 1 Real Time Clock The module uses the PLC s real time clock as the basis for the module s time The real time value is updated to the module by the PLC ladder logic as part of every Block Transfer with a Block ID between 0 and 19 with the PLC clock registers being copied to the tail end of every block transfer data block The real time clock values are copied in the BTW transfer buffer star
118. st error code transmitted to the master by this slave Error codes which can be expected in this field are 0 1 2 3 and 6 The field will only be cleared by re configuring the module Block ID 255 TOTAL MESSAGES TO THIS SLAVE This value represents the total number of messages that have matched this slaves address whether the slave actually determined them to be good worthy of response or not TOTAL MESSAGE RESPONSES FROM THIS SLAVE This value represents the number of good non error responses that the slave has sent to the master The presumption is that if the slave is responding the message was good TOTAL MESSAGES SEEN BY THIS SLAVE This value represents the total number of commands seen by the slave regardless of the slave address Note All accumulators will rollover to 0 after reaching 65535 1 in PLC Integer File MBM Error Code This value represents the current error code status for the Modbus Master port MBM Receive Counter This value increments upon each successful reception from a Modbus Slave device Monitoring the value in this register with a timer can be used to determine if communications on the Modbus Master port are troubled MBM Block ID This value is used to page Modbus Master read data blocks from the 2100 module into the ladder logic memory As with all Block ID values in the 2100 module each data block is 50 words and the Block ID value can be used to decode which 50 word block
119. t receiving the configuration block Block ID 255 and the Meter Run Data Initialization blocks Block ID 256 to 266 This memory can only be accessed by the PLC and is Write Only i e the configuration memory contents in the 2100 module are not accessible for reading by the PLC 3 2 3 AGA Data Memory The 2100 module maintains the AGA Data Memory accessible for the flow calculation logic The AGA Memory consists of several different types of data The input and output values are available to the PLC ladder logic through Block ID Numbers 20 through 29 In addition to the data that is transferred to the PLC historical storage data and all relevant working data is available to the Modbus Slave port AGA Data Memory is addressed on the Modbus Slave port starting at Register Address 1000 The AGA Data Memory structure is overviewed in the following table A detailed breakdown of the register address assignments is provided in the Appendix Modbus Block ID Description Cnt Start Finish Write data from PLC 255 W i sys config 20 1000 1019 i_time 10 1020 1029 20 21 22 23 W i loop data structure 10 70 run 24 25 26 27 i_loop_config 31 words Run 1 10 1030 1729 28 29 i_loop_update 9 words per aga_8 config 23 words per Space 7 r_time 10 1730 1739 space 60 1740 1799 Read Data To PLC 20 21 22 23 R f_loop_output 10 40 words per Run 1 10 1800 2199 24 25 26 27 space 40 2200 2239 28 29 R loop storagef10 300 words per Run 1 10 2240 5239 spa
120. table and the modem is ready to transmit The module will not transmit until CTS is on If CTS is turned off during transmission the module will stop transmitting until CTS is restored DTR Data Terminal Ready DTR is a signal to the modem to indicate that the module is operational and ready for communication The module will continually assert DTR DSR Data Set Ready DSR is a signal from the modem to the module to indicate that the modem is operational and ready for communication The module will not transmit or receive unless DSR is on This signal is typically continually asserted by the modem The module will continually assert DSR If the modem does not properly control DSR or if no modem is used DSR must be jumpered to a high signal at the module s RS 232 C connector Since DTR is held high by the module DSR can be jumpered to DTR DCD Data Carrier Detect DCD is a signal from the modem to the module to indicate that the carrier from another modem is being sensed on the link The module will continually assert DCD RS 232C CABLE CONFIGURATION WITH HANDSHAKING ProSoft Module MODEM 25 Pin 2 RxD EE 2 Verify 9 IKD qetela 3 Verify 7 RUS Sheers 4 8 CTS 5 5 GND 7 4 ETE saien 20 WITHOUT HANDSHAKING ProSoft Module RS 232 Device 25 Pin 2 RxD lt 2 RxD 3 TxD lt 3 TxD 7 RTS eS o 4 RTS 8 CTS
121. the Slave Remote Addr 0 The register address in the slave where the MBM is requesting the Data to come from Frequency 2 The number of 1 2 second intervals between executions of the command A value of two should cause the command to be executed once per second Receiving Modbus Data from the Slave The 2100 module returns the data received from the slave device embedded in the block ID 0 data block The structure of Block 0 is as follows The Following section has been excerpted from the 2100 AGA manual and modified to include the Modbus Master specific information 5 2 1 Reading Module Status Data The Status Data block is transferred to the processor with a Block ID of 0 The structure of the data block is as follows BT Buf Offset DESCRIPTION N7 410 0 Current module status N7 411 1 Last transmitted error condition N7 412 2 Total Messages to this slave N7 413 3 Total Msg responses from this slave N7 414 4 Total Msgs seen by this slave N7 415 5 Spare N7 416 6 Spare N7 417 7 MBM Error Code N7 418 8 MBM Receive Counter N7 419 9 MBM Block ID N7 420 10 59 MBM Data Block 0 to 49 Where BLOCK ID When the Block ID number in the BTR buffer Word 0 is O the module is transferring the Status Data block CURRENT MODULE ERROR STATUS This value represents the current value of the error code inside the module The possible values are detailed in the following section LAST TRANSMITTED ERROR CONDITION This value is the la
122. the Meter Freeze bit from the Meter Control Word Meter Configuration Status This bit indicates the Configuration status of the meter When set 1 the meter has successfully been configured and the compressibility and flow rate calculations not being performed The module is in this state as a result of receiving the Meter Freeze bit from the Meter Control Word Rollover Status The bits from the Rollover bits in Section 5 3 1 are stored in these bits See 5 3 1 for details on the bits All other values are as detailed in the Current Period discussion above 49 50 This page intentionally left blank Revised 3 21 01 VI MODBUS SLAVE COMMANDS The 2100 module Modbus Slave functionality supports several data read and write commands The decision on which commands to use is made depending on the type of data being addressed and the level of Modbus support in the slave and master equipment The following sections detail the different commands supported by the module 6 1 MODBUS Commands The Modbus Slave driver supports the following commands As stated in earlier sections the data for responding to read commands is taken directly out of module memory while write data from the Master is sent directly to the processor ladder logic bypassing the module memory table 6 1 1 Function Code 1 Read Output Status The slave returns bit data from the data space pointed to by the Output memory start address configuration
123. ting at word 58 of the buffer Data word 57 Real Time Clock Data Word Description Format Units 57 Time year XXX 58 Time month XX 59 Time day XX 60 Time hour xXx 61 Time minute xX 62 Time second XX 63 Where Time Data Values xx The Time Set Data values to be used by the module for all decisions based on real time clock values These functions include End of Day Hourly data accumulations future and Rollover timestamping The time data is copied straight from the PLC s Status File Configuring the 2100 Module Block ID 255 The ProSoft Technology firmware must be configured at least once when the card is first powered up and any time thereafter when the configuration parameters must be changed The Module Configuration data block consists of data necessary to configure the Modbus Slave port as well as key Flow Measurement calculation setup values On power up the module enters into a logical loop waiting to receive configuration data from the PLC While waiting the module sets the first word of the BTR buffer to 255 telling the PLC that the module must be configured before anything else will be done The module will continuously perform block transfers until the Module Configuration block is received Upon receipt the module will execute a Modbus port initialization reset the Modbus error counters and then proceed to request the Meter Run Initialization Data Revised 3 21 01
124. tus 0 00 0 ee 51 6 1 2 Function Code 2 Read Input Status sees ee 51 6 1 3 Function Code 3 Read Multiple Registers iss ee ee 51 6 2 4 Function Code 4 Read Input Registers iis ee ee 51 6 2 5 Function Code 5 Single Bit Write see AA ee 51 6 2 6 Function Code 6 Single Register Write ee ee 52 6 2 7 Function Code 15 Multiple Bit Write Future 52 6 2 8 Function Code 16 Write Multiple Registers 52 6 2 Reading and Writing Floating Point Data iese esse AA ee ee ee 52 6 2 1 Reading Floating Point Values ese ee de Re ee 52 6 2 2 Writing Floating Point ValueS sees Re ed Re ee 52 7 0 SUPPORT SERVICE AND WARRANTY see ee esse ee ee ee ee ee ee eek ee ee ee ee ee ee ee ee ee ee ee Re ee ee 55 7 1 Technical SUDDOF esse ees RA Ge RA ee AA RA de ee ee ee ek ee ee ee 55 7 2 Service and Repair 0 ee eee cece AR ee AA ee Ad de ee 55 7 3 MEER AE ER EE 56 7 3 1 General Warranty PoliCY ee ee ee Re ee 56 7 3 2 Limitation of Liability RA Re ee 56 7 3 3 Hardware Product Warranty Details iss sesse de dee ee ee ee ed ee ee 57 APPENDICES A Block Transfer Buffer Register Assignments Modbus Register Map B RS 232 and RS 422 485 Cabling C Gas Viscosity Chart D Use Interlink to Connect A Computer E PLC 5 Example Ladder Logic F Modbus Master Port Example Daniels 2251 Analyzer I PRODUCT OVERVIEW The ProSoft Technology Inc 2100 family of Flow Processor products gives Allen Br
125. ut including the 7000 offset in the address Once the data is received in the PLC a COP command must be used to copy the data from the Integer File space to a Floating Point File type Examples of COP commands to move data from to Integer files are included in the Appendix A ladder logic 53 54 This page intentionally left blank Revised 3 21 01 7 0 SUPPORT SERVICE AND WARRANTY 7 1 Technical Support ProSoft Technology survives on its ability to provide meaningful support to its customers Should any questions or problems arise please feel free to contact us at Factory Sales California ProSoft Technology Inc 9801 Camino Media Suite 105 Bakersfield CA 93311 661 664 7208 800 326 7066 661 664 7233 fax Email prosoft prosoft technology com Before calling for support please prepare yourself for the call In order to provide the best and quickest support possible we will most likely ask for the following information you may wish to fax it to us prior to calling 1 Product Serial and Version Number 2 Hardware Information Dip Switches Jumpers Communication cabling 3 Application specific information Configuration Ladder listing AGA setup data ete An after hours answering service on the Bakersfield number can patch you to one our qualified technical and or application support engineers at any time to answer the questions that are important to you 7 2 Service and
126. will only be cleared by re configuring the module Block ID 255 TOTAL MESSAGES TO THIS SLAVE This value represents the total number of messages that have matched this slaves address whether the slave actually determined them to be good worthy of response or not TOTAL MESSAGE RESPONSES FROM THIS SLAVE This value represents the number of good non error responses that Revised 3 21 01 Revised 3 21 01 5 2 2 5 2 3 the slave has sent to the master The presumption is that if the slave is responding the message was good TOTAL MESSAGES SEEN BY THIS SLAVE This value represents the total number of commands seen by the slave regardless of the slave address Note All accumulators will rollover to 0 after reaching 65535 1 in PLC Integer File MBM Error Code This value represents the current error code status fo the Modbus Master port MBM Receive Counter This value increments upon each successful reception from a Modbus Slave device Monitoring the value in this register with a timer can be used to determine if communications on the Modbus Master port are troubled MBM Block ID This value is used to page Modbus Master read data blocks from the 2100 module into the ladder logic memory As with all Block ID values in the 2100 module each data block is 50 words and the Block ID value can be used to decode which 50 word block is being received from the module Resetting Module Status Data The module Com
127. xx xx Mole 1090 Concentration Argon xx xx Mole 1091 Spare xx xx Mole 1092 to 1099 34 Revised 3 21 01 Revised 3 21 01 AGA 8 Update Control Word Binary pattern This Control Word is used to control the use of the AGA 8 configuration parameters The active bits have the following meanings Bit Description 0 Not Used 1 PLC User Config Select This bit determines if the module uses configuration data from the PLC or from the Modbus port This value should be set to a 1 as User configuration through Modbus Port is not enabled in this release PLC Configuration Data 1 User Modbus Config Data 0 Inactive 2 BTU Calculation Disable This bit determines if the module will perform the energy calculations on the gas mixture This value when defaulted to 0 will perform the calcuations In order to disable the calculations place a value of 1 in this bit position 3 Fw Factor Calculation Enable When this bit is clear the Volumetric flow values will be returned to the PLC as they are calculated straight from the AGA 3 7 and 8 equations When the bit is set the Fw equation will be applied to the volumetric flow Concentration Fluid Component XXX XX The values entered are the individual gas component concentrations obtained from a detailed gas analysis The values are entered as a percentage number Care should be taken in rounding concentration values to assure the best accuracy possible A value of 9
128. y Inc Improvements and or changes in this manual or the product may be made at any time These changes will be made periodically to correct technical inaccuracies or typographical errors WARNING This product will allow remote access to binary and register data which may have Control related implications in the devices connected to the card The User is responsible for assuring that any applicable regulations and safety practices concerning the remote operation of equipment are adhered to ProSoft Technology Inc 1994 1995 1996 1997 1998 1999 2000 PLC and SLC are registered trademarks of Allen Bradley Company Inc Modbus is a registered trademark of AEG Modicon Preface Getting Started The key to successfully getting started with this product is to install the example ladder logic and to experiment with the ladder logic and the module Through this experimentation you will learn how the PLC communicates with the module the layout of the AGA and Modbus memory map and the relationship between the module memory and the PLC memory As you familiarize yourself with the product begin to adapt the configuration data to your application What to Read Section Ill and IV are the most important chapters of the manual to understand and to familiarize yourself with If you have experience with any of our other products you will probably be able to get by with these chapters and the example ladder logic If you

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