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Fuji Electric ZKM, Руководство по обслуживанию

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14 

INZ-TN5A0506-E 

(2) Explanation 

1)

 

Frame detection 

The status on the line of the communication system is one of the 2 below. 

(a)

 

Vacant status (no data on line) 

(b)

 

Communication status (data is existing) 

The units connected on the circuit start in receiving state and monitor the circuit. When a blank state 
appears on the circuit for at least 24 bit time, the unit detects the end of the previous frame, and within 
the next 24 bit time, enters receiving standby. When data appears on the circuit, the unit begins 
receiving data, and once another blank state of at least 24 bit time is detected, that frame is ended. In 
other words, the data on the circuit from the first time that a 24 bit time blank state appears to the 
second time one appears is loaded as one frame (a bundle of data). 
Therefore, one frame (command message) must be sent while following the rules below. 
(1-1)  The command message must be sent after an empty space of at least 48 bit time. 
(1-2)  Interval between bytes of 1 command message is smaller than 24 bits time. 

 

2)

 

Response of this instrument 

After the PUM detects the frame (detects blank states at least 24 bit times long), that frame is used to 
send a command message. If the command message is destined to the own station, a response message 
is returned. Its processing time is 1 to 30 ms (The time may change depending on the contents of the 
command message.) 
Therefore, one frame (command message) must be sent while following the rules below. 
(1-3)  After sending a command message, for less than 24 bit time the master will enter receiving 

standby. 

 

 

 
 
 
 

POL1 POL2 

POL1 POL2 

POL1 Response data

POL1 Response data

Space time of longer than 25 ms 
is needed. 
(5ms or more is recommendable)

1 to 30msec

Control
Station  

→

 Main unit 

Control
Station  

←

 Main unit 

Data on line 

Содержание ZKM

Страница 1: ...Service Manual INZ TN5A0506a E ZIRCONIA OXYGEN ANALYZER CONVERTER transmission specification MODBUS TYPE ZKM...

Страница 2: ...onse of Slave Station 9 5 4 Function Code 10 5 5 Calculation of Error Check Code CRC 16 11 5 6 Transmission Control Procedure 13 6 DETAILS OF MESSAGE 15 6 1 Word data readout Function code 03H 15 6 2...

Страница 3: ...per master station host computer programmable controller graphic display panel etc through RS485 interface One slave station this instrument can be connected to one master station Because the master s...

Страница 4: ...RTU mode Error detection CRC 16 Isolation Not isolated against communication part and other parts b RS 485 interface Item SPECIFICATIONS Electrical specification Based on EIA RS 485 Communication met...

Страница 5: ...n the kind of communication switch the jumper pin Communication JP1 JP2 JP5 RS 232C 3 5 4 6 3 5 4 6 2 3 RS 485 1 3 2 4 1 3 2 4 1 2 3 2 Terminal allocation TM2 a RS 232C Interface Terminal number Signa...

Страница 6: ...d twist pair cable Recommended cable KPEV SB made by The Furukawa Electric Co Ltd The total extension length of the cable is up to 500 m One master and up to thirty one micro controllers slaves can be...

Страница 7: ...exceed 500V we recommend using a noise filter on the master side as seen in the figure below Noise filter Recommended ZRAC2203 11 made by TDK Corporation RS 485 Noise filter Master Main unit If there...

Страница 8: ...than one instrument 4 1 Setting item The parameters to be set are shown in the following table Set them by operating keys on the screen Item Factory shipment default Settable range Remarks Baud rate...

Страница 9: ...the slave station executes the command and sends back the response message 4 If mismatched the slave station leaves the message and wait for the next command message a In case when the station No in...

Страница 10: ...executed at a slave station For details refer to section 5 4 3 Data part Data are the data required for executing function codes The composition of the data part is different depending on the function...

Страница 11: ...ion code 80H 1 byte Error code 1 byte Error check code CRC 16 2 bytes Fig 5 2 Response message at error detection Table 5 1 Error Code Error code Contents Explanation 01H Illegal function code Non act...

Страница 12: ...tents 03H reading continuance Holding register 4xxxx Reading writing Word data 04H reading continuance Input register 3xxxx Reading Word data 06H Writing Holding register 4xxxx Reading writing Word da...

Страница 13: ...is 0 do nothing If LSB before shifting is 1 subject it and A001H to XOR and store the result into the CRC register e Repeat the steps c and d 8 times shift by 8 bits f Execute steps b to e for the nex...

Страница 14: ...set that result to CR Shift CR to right by 1 bit Calculation 8 times is finished J 8 Add 1 to I Calculation of all characters is completed I All characters Close YES YES YES NO NO NO Explanation of v...

Страница 15: ...1 4 After receiving the response message the next command message must be sent after at least 48 bit time Same as in 1 1 1 5 For safety reasons create a framework where the master checks the response...

Страница 16: ...erefore one frame command message must be sent while following the rules below 1 1 The command message must be sent after an empty space of at least 48 bit time 1 2 Interval between bytes of 1 command...

Страница 17: ...st word data Lower Readout Word number Lower 1 to 60 Upper Upper Contents of the next word data Lower CRC data Lower Upper Contents of the last word data Lower Upper CRC data Lower Arrangement of read...

Страница 18: ...start number Relative address Lower Upper Upper Contents of the first word data Lower Readout Word number Lower 1 to 60 Upper Upper Contents of the next word data Lower CRC data Lower Upper Contents o...

Страница 19: ...byte Response message composition byte Station No Station No Function code Function code Upper Upper Write in designation No Relative address Lower Write in designation No Relative address Lower Upper...

Страница 20: ...d number Lower Upper Write in byte number Write in word number 2 CRC data Lower Upper First write in word data Lower Upper Next write in word data Lower Upper Last write in word data Lower Upper CRC d...

Страница 21: ...measurement unit When transmitted the calibration concentration setting alarm s high and low limits and measurement concentration data have no decimal point nor measurement unit Calculate exact values...

Страница 22: ...ime 0 to 240 24 5 40006 WORD Setting flag 2 bits Inhabitation of all calibration 0 enable 1 unenable 0 Year of automatic calibration star Upper 00 to 99 99 6 40007 WORD Month of automatic calibration...

Страница 23: ...ute of automatic blow back start Upper 0 to 59 0 20 40021 WORD Unused 0 0 Automatic blow cycle time Upper 0 to 99 24 21 40022 WORD Automatic blow cycle minute Lower 0 to 99 0 22 40023 WORD Blow time s...

Страница 24: ...1digit 0 0001 vol 500000 34 40035 O2 concentration alarm upper2 limit vol Upper Range 1 35 40036 DWORD O2 concentration alarm upper2 limit vol Lower Range 1 1 to 550000 1digit 0 0001 vol 200 36 40037...

Страница 25: ...3 WORD LCD Automatic OFF time of the backlight Minute 0 to 99 10 53 40054 WORD Warm up operation monitoring time Minute 0 to 60 45 54 40055 WORD Average time of movement Seconds 0 to 60 2 55 40056 WOR...

Страница 26: ...e Low Upper 74 40075 DWORD AD2 adjustment value Low Lower 0 to 4294967295 2000 75 40076 AD2 adjustment value High Upper 76 40077 DWORD AD2 adjustment value High Lower 0 to 4294967295 32000 77 40078 AD...

Страница 27: ...40090 WORD PID control parameter I 0 to 65535 3000 90 40091 WORD PID control parameter D 0 to 65535 600 91 40092 WORD AC voltage applied time Minute 0 to 65535 20 92 40093 WORD Unused 93 40094 WORD Un...

Страница 28: ...nimum value of Oxygen concentration Lower 0 to 0xFFFFFFFF 1digit 0 0001 vol Second of corrent date Upper 0 to 59 10 30011 WORD Minute of corrent date Lower 0 to 59 Time of corrent date Upper 0 to 23 1...

Страница 29: ...input adjustment of temperature span 4 bits input adjustment auxiliary zero 5 bits input adjustment of auxiliary span 6 bits 4 mA adjustment flag 7 bits 20 mA adjustment flag 0 None 1 Active 23 30024...

Страница 30: ...Upper 0 bit Heater control 1 bit Hold signal 2 bits Warm up operation HOLD 4 bits Key input for backlight off 5 bits Restored sonsor to wait high temperature 6 bits Auto blow start 7 bits Manual batch...

Страница 31: ...n error 4 bits Calibration error 6 bits Timeout of high temperature setting of heater 0 Normal 1 Abnormal Parameter for alarm control Upper 0 bit Warm up operation error 1 bit Heater temperature error...

Страница 32: ...per 37 30038 DWORD AD2 Heater temperature control Lower 0 to 0xFFFFFFFF 38 30039 AD3 combustion control Upper 39 30040 DWORD AD3 combustion control Lower 0 to 0xFFFFFFFF 40 30041 AD4 Thermocouple ambi...

Страница 33: ...temperature input zero Lower 0 to 0xFFFFFFFF 63 30064 Heater temperature input span Upper 64 30065 DWORD Heater temperature input span Lower 0 to 0xFFFFFFFF 65 30066 WORD PWM oncounter 0 to 50 66 300...

Страница 34: ...99 0 1008 31009 WORD Month of data storage position 0 at error generation date Lower 1 to 12 1 Day of data storage position 0 at error generation date Upper 1 to 31 1 1009 31010 WORD Time of data sto...

Страница 35: ...99 0 2008 32009 WORD Month of data storage position 0 at alarm generation date Lower 1 to 12 1 Dayof data storage position 0 at alarm generation date Upper 1 to 31 1 2009 32010 WORD Time of data stora...

Страница 36: ...Month of data storage position 0 at operation generation date Lower 1 to 12 1 Day of data storage position 0 at operation generation date Upper 1 to 31 1 3009 33010 WORD Time of data storage position...

Страница 37: ......

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