Yamato V Instruction Manual Download Page 31

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5. COMMUNICATION SAMPLE MESSAGE

5.2: RTU

Sample message for RTU

Operation mode

STOP/RUN

0000: Fixed temp operation (remote)

0000: STOP

0001: Fixed temp auto start (remote)

0001: RUN

0002: Fixed temp auto stop (remote)

0003: Program operation (remote)

0004: Program auto stop (remote)

0005: Local

Error check

Example 6

Operation mode change

* Start number: reference number minus 40001

Fixed temp operation in remote mode: 46001 – 40001 = 6000

⇒

1770 in hexadecimal

Send data
Master

⇒

Device

Reply data
Device

⇒

Master

1770

0000

1770

0000

Error check

CRC (H)

Slave address

Function code

Start number

Operation mode

CRC (H)

CRC (L)

Slave address

Function code

Start number

Operation mode

Error check

Example 7

Operation mode: RUN

* Start number: reference number minus 40001

Fixed temp operation in remote mode: 46002 – 40001 = 6001

⇒

1771 in hexadecimal

Send data
Master

⇒

Device

Reply data
Device

⇒

Master

1771

0001

1771

0001

Error check

CRC (H)

Slave address

Function code

Start number

Operation mode

CRC (H)

CRC (L)

Slave address

Function code

Start number

Operation mode

Error check

Example 8

Operation mode: STOP

* Start number: reference number minus 40001

Fixed temp operation in remote mode: 46002 – 40001 = 6001

⇒

1771 in hexadecimal

Send data
Master

⇒

Device

Reply data
Device

⇒

Master

1771

0001

1771

0001

Error check

CRC (H)

Slave address

Function code

Start number

Operation mode

CRC (H)

CRC (L)

Slave address

Function code

Start number

Operation mode

Summary of Contents for V

Page 1: ...ycled paper For proper equipment operation please read this instruction manual and main unit instruction manual before use Also read external communications terminal instruction manual carefully when...

Page 2: ...8 2 8 Error check 9 2 9 Function code details 10 2 10 Error processing 12 2 11 Transmission error codes 12 3 REMOTE OPERATION VIA COMMUNICATION 13 3 1 Start remote mode 13 3 2 End remote mode 13 3 3...

Page 3: ...SCII RTU 2 Data length DATA 7 8 bit 3 Parity PARI Non odd evn 4 Stop bit length STOPB 1 2 bit 5 Communication rate BPS 9600 19200 38400bps 6 Response delay time DELAY 0 10 20 250 msec 7 Communication...

Page 4: ...ed to select ASCI or rtU Select either one and press 5 Data length setting default is 7BIT Press to show DATA in the sub display and 7BIT in the main display Press Main display content flashes can now...

Page 5: ...display Press Main display content flashes can now be used to select 9 6 kbps 19 2 kbps or 38 4 kbps Select one and press 9 Response delay time setting default is 0 Press to show DELAY in the sub disp...

Page 6: ...er OFF Sub display shows current time which completes the communication settings Change value can be recovered by using during setting change Effective before pressing With the controller turned OFF o...

Page 7: ...be made workstation not included Communication cable connection USB RS485 USB 485I USB USB Note External communication adapter kit product code 211880 includes the following 1 USB cable connects work...

Page 8: ...Terminating resistor custom made item If you prepare a terminating resistor yourself connect a fixed resistor of 100 and 1 4 W or over in parallel to the last cable appliance terminal block Workstatio...

Page 9: ...TU mode Error check LRC ASCII mode CRC 16 RTU mode 2 2 Frame configuration In RTU mode frame is composed of message portion only In ASCII mode frame consists of start character colon 3AH message and e...

Page 10: ...master data is composed of code number data count etc of target data to be read and written Response from the slave consists of data in relation to the request Basic MODBUS data is all integers of 16...

Page 11: ...A001H and EX OR Otherwise go to step 5 x 5 Repeat steps 3 and 4 until shifted 8 times 6 EX OR of x and following data x 7 Same as steps 3 5 8 Repeat final data 9 Create a message of the calculated 16...

Page 12: ...e numbers are 40001 to 40003 in above cases Reference number Relative number 40001 0000H 40002 0001H 40003 0002H Data 650 028AH 50 FFCEH 0 0000H RTU mode ASCII mode error check LRC F9H LRC 9DH Note st...

Page 13: ...nction code 06 06 H Assign analog setting value for given number to specified value Example set fixed temp operation temp setting to 100 for slave 1 RTU mode Master device Device master normal Slave a...

Page 14: ...ode signifying error content is sent in response as an error message Slave address Function code Function code 80H Function code 80H Error codes CRC L 03 83H CRC H 04 84H 06 86H 2 11 Transmission erro...

Page 15: ...set remote operation state in standby then quit remote mode After remote mode ends the controller will be turned OFF shows power OFF screen 3 3 Remote operation start stop When starting remote operati...

Page 16: ...by holding down the POWER key When pressing any keys other than the POWER key display indicates that main unit is in remote mode and buzzer sounds This indication will show for one second and then th...

Page 17: ...on Initial value Remarks 40001 03 06 R W Fixed temp operation SV setting SLL SLH 0 0 Corrected within the range between SLL and SLH 40002 03 06 R W Fixed temp auto start SV setting SLL SLH 0 0 Correct...

Page 18: ...6 03 06 R W Fixed temp quick auto stop timer setting L 00 59 0 59 00 L minute 40017 03 06 R W Fixed temp quick auto stop time setting H 00 23 0 23 00 H hour 40018 03 06 R W Fixed temp quick auto stop...

Page 19: ...lated power consumption KW h 0 999KW h 0 999 0 KW h 40028 03 R Accumulated power consumption MW h 0 999MW h 0 999 0 MW h 40029 03 R Accumulated CO2 emissions Kg 0 999Kg 0 999 0 Kg 40030 03 R Accumulat...

Page 20: ...ndar setting Hour 0 23 0 23 0 41007 03 06 R W Calendar setting minute 0 59 0 59 0 Seconds are fixed at 0 41008 03 06 R W Refrigerator control function select NON 2P CYC CNT 0 1 2 3 2P 41009 03 06 R W...

Page 21: ...19 03 06 R W Auto damper setting damper aperture during standby 0 25 50 75 100 0 1 2 3 4 0 41020 03 06 R W Auto damper setting damper aperture during operation 0 25 50 75 100 0 1 2 3 4 0 41021 03 06 R...

Page 22: ...nt 3 output during standby OFF ON 0 1 OFF 41029 03 06 R W Event output setting event 3 output during operation OFF ON 0 1 OFF 41030 03 06 R W Event output setting event 3 output at the end of operatio...

Page 23: ...tion impossibility conditions 46004 03 06 R W Data length setting 7BIT 8BIT 0 1 It does not depend on communication impossibility conditions 7BIT cannot be set while RTU is being set 46005 03 06 R W P...

Page 24: ...04 R PV decimal position DP 0 DP 1 0 1 30103 04 R In operation target temp SV RUN SV target temp in program operation 1999 to 9999 0 when READY PV decimal point 30104 04 R In operation execute temp S...

Page 25: ...lure BIT8 Refrigerator error BIT9 RAM error BIT10 EEPROM error BIT11 Auto tune error BIT12 External Error BIT13 Inverter error BIT14 High pressure error BIT15 Overload error Refer to main unit instruc...

Page 26: ...mp auto start remaining time High order byte Hour 0 99 Low order byte Minute 0 59 30113 04 R Fixed temp auto stop remaining time High order byte Hour 0 99 Low order byte Minute 0 59 30114 04 R Fixed t...

Page 27: ...ing time in current step 0 count stop 1 counting Bit5 remote local status 0 local 1 remote Bit6 defrost status 0 defrost stop 1 defrosting Bit7 program operation repeat status 0 No repeat 1 repeating...

Page 28: ...ime setting H 00 99 INF 31006 04 R Step time setting L 00 59 INF 31007 04 R Repeat setting repeat destination 0 98 31008 04 R Repeat setting number of times to repeat 0 99 INF 31009 04 R Wait setting...

Page 29: ...SLH 32475 04 R Step time setting H 00 99 INF 32476 04 R Step time setting L 00 59 INF 32477 04 R Repeat setting repeat destination 0 98 32478 04 R Repeat setting number of times to repeat 0 99 INF 324...

Page 30: ...Example 5 Read operation mode Start number reference number minus 40001 Operation mode in local mode 46001 40001 6000 1770 in hexadecimal Send data Master Device Reply data Device Master 01 03 1770 0...

Page 31: ...dress Function code Start number Operation mode Error check Example 7 Operation mode RUN Start number reference number minus 40001 Fixed temp operation in remote mode 46002 40001 6001 1771 in hexadeci...

Page 32: ...r has been sent and then releases communication line If the next communication is started by the master before the line is opened the signals collide and communication cannot be properly carried out P...

Page 33: ...mandated by this manual Doing so may result in equipment malfunction serious personal injury or death Notice Instruction manual descriptions and specifications are subject to change without notice Yam...

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