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Ins. No.

 

E-880CM-1-E

1

FLOW COMPUTER   EL4001 SERIES

COMMUNICATION MANUAL

Every OVAL Flow Computer is fabricated and shipped from our factory under stringent quality control. 

To derive maximum benefit from the computer, we recommend that you become familiar with this 

instruction manual before you place it in service and retain a copy at the field location for ready 

reference.

Summary of Contents for EL4001 Series

Page 1: ...Computer is fabricated and shipped from our factory under stringent quality control To derive maximum benefit from the computer we recommend that you become familiar with this instruction manual befor...

Page 2: ...uct name model No serial No and other pertinent information This communication manual applies to the following models EL4101 Steam Service Flow Computer saturated steam service EL4111 Steam Service Fl...

Page 3: ...unication Commands 13 6 4 Units of Numerical Data in Data Communication 14 6 5 Numerical Data Format in Data Communication 14 6 6 Response Code 15 6 7 Procedure to Change Parameters in the SET Mode 16...

Page 4: ...nse 38 6 21 SYS Mode Total Counter Reset Command ST 39 6 21 1 Description 39 6 21 2 Command Response 39 6 22 SYS Mode Simulated Analog Output Command SA 40 6 22 1 Description 40 6 22 2 Command Respons...

Page 5: ...ication n a maximum of 16 units Compatible with local remote selection Shown on the LCD screen We do not offer software support for higher level systems 2 NETWORK CONFIGURATION A higher level host sys...

Page 6: ...ompting you to enter the correct password again In this case you need to key in the password 2 Operation in Communication In communication you can change modes with the mode select command By includin...

Page 7: ...protected in function keys SET MODE and SYS MODE will no longer appear on the screen For details of DIP switch setup see EL4001 Key Operation Manual 2 Operation in Communication In data communication...

Page 8: ...e telling you of the switchover and goes into the remote mode Remote Only communication is acceptable In the RUN mode keying in brings up a message prompting you whether to switch into local and goes...

Page 9: ...E 880CM 1 E 3 1 Mode Select Map Shown below is the mode transition diagram Communication remote To normal RUN mode Other than RUN mode Comm command After showing for 3 seconds...

Page 10: ...8 bits Stop bit 1 bit 1 5 bits and 2 bits Home address 2 digits hexadecimal 00 to 0F Terminate None LF CR and CR LF BCC None BCC SUM Parity None odd or even 4 2 Menu Trees SYS mode related setup menus...

Page 11: ...ation it is necessary for the host system PC etc to retry or other processing Normal send receive Reception error with EL4001 Upon detection of an error such as command error or functional error on th...

Page 12: ...0 1 1 2 No Item Description Bytes 1 Client system No Client system EL4511 address 00 thru 0F in 16 ways 2 2 Host system No Host system PC etc address F0 thru FF in 16 ways 2 3 Response code Defined b...

Page 13: ...e Write the information in the SYS mode Read an error status Read reset the error logging Read the model setup information Local remote select Mode select command Read the computer status Read the cal...

Page 14: ...System EL4001 Set up screen Set up screen Memory Message Memory Pressure kgf cm2 Message Transmit Convert Pressure PASCAL Pressure PASCAL Pressure PASCAL Pressure PASCAL Pressure PASCAL 6 5 About the...

Page 15: ...on code has been received Forced remote termination A switchover from remote to local has taken place by operating a key A switchover was made properly in the RUN mode Local error A switchover from re...

Page 16: ...the SET mode main menu screen To view the data you want to modify read the parameters with SET mode data read command RS With SET mode data write command WS change the parameters of interest Repeat st...

Page 17: ...oeff unit Speci c enthalpy unit Speci c enthalpy unit 3 corr factor unit T P corr factor unit Quadratic correction factor unit Functions of Read Command in the RUN Mode by Model Function EL4201 EL4211...

Page 18: ...conversion factor unit Volumetric conversion factor unit Correction factor E1 Correction factor E2 Frequency Functions of Read Command in the RUN Mode by Model 6 8 2 Command Response Batch read with...

Page 19: ...0 0 0 0 0 0 0 2 5 0 0 0 0 0 0 1 0 0 1 2 0 0 0 0 0 2B 31 30 30 30 30 30 2B 30 30 35 43 2B 32 35 30 30 30 30 2B 30 30 38 44 2B 31 30 30 31 32 30 2B 30 30 30 30 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1...

Page 20: ...XX 1 Under fallback value XXXXXX XX 1 Over fallback value XXXXXX XX 1 Smoothing factor XXXXXX XX Pulse input Meter factor XXXXXX XX Max frequency XXXXXX XX Total count 1 Unit XX Total count 2 Unit XX...

Page 21: ...tor Pc XXXXXX XX Factor Ta XXXXXX XX Factor Tb XXXXXX XX Factor Tc XXXXXX XX Solids cont calc Factor Da XXXXXX XX Factor Db XXXXXX XX Factor Dc XXXXXX XX Factor Ta XXXXXX XX A Factor Tb XXXXXX XX B Fa...

Page 22: ...Meter error corr visc 3 XXXXXX XX Meter insp Velocity freq 1 XXXXXX XX Meter error 11 XXXXXX XX Meter error 21 XXXXXX XX Meter error 31 XXXXXX XX Meter insp Velocity freq 2 XXXXXX XX Meter error 12 XX...

Page 23: ...2 30 31 46 30 30 30 32 30 03 37 36 0D 0A HEX HEX S BCC BCC Numerical data S BCC BCC Data Host system Unit Client No Host No Client No Host No Func code Func code Client No Host No Res ponse Client No...

Page 24: ...rs SET mode temperature related items to read in 6 10 2 Command Response To write numerical data 0 0 F 0 F 0 0 1 0 1 W S W S W S 0 2 2 0 5 0 0 0 0 0 0 1 02 30 31 46 30 30 30 03 0D 0A 02 30 31 46 30 57...

Page 25: ...COUNT3 ALARM Pulse out width XX 1mS 50mS Pulse output 3 Output type XX NONE TOTAL COUNT1 TOTAL COUNT2 TOTAL COUNT3 ALARM Backlight AUTO Manual XX AUTO MANUAL ON OFF XX ON OFF Power ON reset ON OFF XX...

Page 26: ...format R Y R Y F 0 0 1 0 1 0 1 0 0 F 0 0 0 02 30 31 46 30 57 53 30 30 03 0D 0A 02 30 31 46 30 30 30 30 31 03 0D 0A BCC BCC Data Client No Host No Func code Client No Host No Res ponse Host system PC...

Page 27: ...Command is invalid unless in the local or SYS mode 6 12 2 Command Response Example Temperature input format W Y W Y F 0 0 1 0 1 0 0 F 0 0 0 02 30 31 0 1 30 31 46 30 57 53 30 30 03 0D 0A 02 30 31 46 3...

Page 28: ...ity conversion error Density converter circuit has a fault 19 13 UNDEFINED 20 14 TEMP1 PT OVER Temp input 1 Pt over flow Temp input 1 Pt level exceeded over alarm point 21 15 TEMP1 PT UNDER Temp input...

Page 29: ...4 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Data E T X 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 21 22 23 24 25 26 27 28 29 30 31 3...

Page 30: ...14 Error Logging Read Command RL 6 14 1 Description With this command you can read the logging record of error events in batch or individually Function No 00 Batch read 01 Read error events individua...

Page 31: ...02 30 31 46 30 30 30 30 33 33 34 32 34 31 35 33 30 30 0 3 2 4 1 5 3 0 0 L BCC BCC No Client No Host No Func code Client No Host No Res ponse Host system PC etc Client system EL4511 Host system PC etc...

Page 32: ...mple Batch read Function Description Data format Model code XXXX Model setup version XXX Common ROM version XXX Parameter status X Calibration yes or no X Password setup yes or no X Description 0 1 2...

Page 33: ...No Func code Client No Host No Res ponse Host system PC etc Client system EL4511 Host system PC etc Client system EL4511 Host system PC etc Client system EL4511 Read individually model code Example R...

Page 34: ...alculation Min output scaling factor to the response Scaling Add scale factor to the command message Resultant to response code If OK go to RUN mode Alter the end of calculation go to SYS mode Alter t...

Page 35: ...2B 30 30 0 0 2B 30 30 0 0 2B 30 30 31 M C M C BCC BCC HEX HEX pulse scaling 1 pulse scaling 2 pulse scaling 3 Password Mode Client No Host No Func code Password Client No Host No Func code Client No H...

Page 36: ...intenance parameters logging XX Error count XX DIP setup enabled disabled X Description 0 1 2 3 Mode Scaling setup Disabled Enabled 6 18 2 Command Response Example F 0 F 0 0 1 0 1 0 0 0 0 0 0 0 0 0 1...

Page 37: ...e Read individually year D F 0 F 0 0 1 0 1 0 0 0 0 9 8 02 30 31 46 30 52 44 30 30 03 0D 0A 03 0D 0A 02 30 31 46 30 30 30 30 33 39 38 33 30 31 34 34 36 0 3 3 0 1 4 4 6 D BCC BCC Date Time HEX HEX D F 0...

Page 38: ...D 0A 02 30 31 46 30 30 30 30 33 39 38 33 30 31 35 31 35 0 3 3 0 1 5 1 5 W D BCC BCC Date Time HEX HEX W D F 0 F 0 0 1 0 1 0 7 2 0 0 0 02 30 31 46 30 57 44 30 37 32 30 03 0D 0A 03 0D 0A 02 30 31 46 30...

Page 39: ...than two total counters an attempt to implement code 03 Total 3 will result in an error Also with a model not provided with total counters always an error message will be emitted 6 21 2 Command Respo...

Page 40: ...d sending its response the analog output is updated The measuring unit to be set up is mA 00 Analog output 1 01 Analog output 2 6 22 2 Command Response Example Analog output 1 S A F 0 F 0 0 1 0 1 0 0...

Page 41: ...y and density unit of liquid B 2 Command Response Batch read Example Batch read Code Liquid kind 0 Crude 1 Fuel 2 Lube S C F 0 F 0 0 1 0 1 0 0 0 0 0 0 02 30 31 46 30 53 43 30 30 03 0D 0A 03 0D 0A 02 3...

Page 42: ...liquid B 09 Write density and density unit of liquid B 6 23 3 Command Response Batch write Example Batch write S C F 0 0 1 0 5 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 02 02 03 30 31 46 30...

Page 43: ...ity and density unit 2 Command Response Batch read Example Batch read Code Liquid kind 0 Crude 1 Fuel 2 Lube S C F 0 F 0 0 1 0 1 0 0 0 0 0 0 02 30 31 46 30 53 43 30 30 03 0D 0A 03 0D 0A 02 30 31 46 30...

Page 44: ...nits see Chapter 12 CODES ASSIGNED TO UNITS 04 Batch read 05 Read liquid kind 06 Read viscosity and viscosity unit 07 Read density and density unit 6 24 3 Command Response Batch read Example Batch rea...

Page 45: ...the message below Example Remote keystrokes unacceptable 6BH 30H XOR 31H XOR 46H XOR 30H XOR 53H XOR 4DH XOR 30H XOR 31H XOR 03H F 0 F 0 0 1 0 1 0 1 6 B 0 0 02 30 31 46 30 53 4D 30 31 36 42 03 0D 0A 0...

Page 46: ...message in your SYS mode communication setup None S M BCC BCC S M BCC BCC Client No Host No Func code Client No Host No Func code Host system PC etc Client system EL4001 Host system PC etc Client sys...

Page 47: ...another Hence a duration of about 3 seconds is required in this case It requires about 20ms for the EL4001 to issue a response until being ready to receive the next command If it is desired to issue a...

Page 48: ...0 l s 61 6 kg ml Liquid B4 0 kl min C EL4131 20 2 C 63 1 g m3 Liquid B5 0 kl h C EL4131 21 2 F 6C 2 kJ kg B6 0 kl C EL4131 23 2 K 6D 2 J g B7 0 l min C EL4131 28 0 gal US 6E 3 kcal kg B8 0 l h C EL41...

Page 49: ...0 0 1 1 B7 0 0 0 0 1 1 1 1 B8 0 0 0 0 0 0 0 0 B4 B3 B2 B1 0 1 2 3 4 5 6 7 0 0 0 0 0 NUL DLE 0 P p 0 0 0 1 1 SOH DC1 1 A Q a q 0 0 1 0 2 STX DC2 2 B R b r 0 0 1 1 3 ETX DC3 3 C S c s 0 1 0 0 4 EOT DC4...

Page 50: ...E 880CM 1 E All speci cations are subject to change without notice for improvement 2018 12 Revised 2011 04 Revised 2008 09 Released E 880CM 1 E 2...

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