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11

8.7.2

Multiple Read Mnemonics

8

COMMUNICATION…

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Содержание AnalyzeIT ZMT Series

Страница 1: ...AnalyzeIT Zirconia Oxygen Analyzer Systems ZMT Series Supplementary Operating Instructions Serial Data Communications IM ZMT SER_2 ...

Страница 2: ...of high pressure and or temperature 5 Chemicals must be stored away from heat protected from temperature extremes and powders kept dry Normal safe handling procedures must be used 6 When disposing of chemicals ensure that no two chemicals are mixed Safety advice concerning the use of the equipment described in this manual or any relevant hazard data sheets where applicable may be obtained from the...

Страница 3: ... COMMUNICATION 6 8 1 Communication between Master and Slaves 6 8 1 1 Mnemonics 6 8 2 Command Format 6 8 2 1 Term Clarification for Command Format 6 8 3 Reply Format 7 8 3 1 Term Clarification for Reply Format 7 8 4 Communication Examples 8 8 5 Status 8 8 6 Error Codes 9 8 7 Command Mnemonics 10 8 7 1 General Mnemonics 10 8 7 2 Multiple Read Mnemonics 11 9 OPERATION 12 10 SPECIFICATION 12 APPENDICE...

Страница 4: ...logic levels a for logic 1 MARK condition or IDLE state the A terminal of the transmitter is negative 0V with respect to the B terminal 5V b for logic 0 SPACE condition or ACTIVE state the A terminal of the transmitter is positive 5V with respect to the B terminal 0V Note A terminal is Tx or Rx and B terminal is Tx or Rx Parity is used for simple error checking The parity bit is a one bit code whi...

Страница 5: ...erial Connections Figs 4 1 and 4 2 The transmitters must be connected in parallel as shown in the schematic diagram Fig 4 1 The RS485 standard quotes connection of maximum thirty two slaves ZMT Analyzers to any single driver computer terminal or host computer the RS422 standard quotes connection of up to ten slaves However these numbers can be increased if the driver s serial port permits Make ser...

Страница 6: ...g plug in links see Fig 5 1 Switch off the supply and gain access to the Serial Output board in Output Module 3 see IM ZMT Section 6 2 Set the termination resistor links as shown in Fig 5 1 5 1 2 Hardware Baud Rate Setting To set the Baud rate to the required speed set the plug in link as shown in Fig 5 1 The protocol used is based on ANSI X3 28 1976 2 5 A4 and is used for master host computer to ...

Страница 7: ...N or OFF as required see Section A3 Parity Select the appropriate parity to match the computer terminal or host computer Return to the top of the Serial Interface Page or advance to the next page Fig 7 1 Location of Serial Data Interface Page Inst Identity 1 SERIAL INTERFACE Baud Rate 9600 Block Check ON Parity ODD DIAGNOSTIC CHECKS CLOCK SETUP Inst Identity 1 SERIAL INTERFACE Baud Rate 1200 2400 ...

Страница 8: ...tween Master and Slaves The commands from the master are coded as single characters as follows R Read read parameters M Multiple Read read a selection of parameters W Write write new parameter values 8 1 1 Mnemonics Each mnemonic for the ZMT Analyzer parameters comprises two characters see Section 8 7 8 2 Command Format Figs 8 1 to 8 3 The protocol is based on ANSI X3 28 1976 2 5 A4 Entries are ma...

Страница 9: ...BCC one character the arithmetic sum of the complete message excluding parity bits transmitted by the analyzer for error detection see Appendix A3 Fig 8 4 Reply Format Command Understood Fig 8 6 Reply Format Command Not Understood Fig 8 5 Multiple Read Reply Format 8 COMMUNICATION Instrument Identification 1 to 99 Parameter Mnemonic Section 8 6 BCC optional Reply ACK Sign Data up to 6 characters I...

Страница 10: ...k 06 Analyzer number 6 CO Carbon Monoxide 200 Carbon Monoxide value 200 ETB End of transmission block 06 Analyzer number 6 CD Carbon Dioxide 10 Carbon Dioxide value 10 ETB End of transmission block 06 Analyzer number 6 SA Status 0 Status No Alarms ETB End of transmission block ACK Command understood STX Start of text M Multiple Read command 06 Analyzer number 6 M1 Multiple Read Mnemonic ETX End of...

Страница 11: ...n i o p l a m i c e d d i l a v n I 8 0 s t i m i l s r e l l o r t n o c e h t n i h t i w t o n s i e u l a v e t i r W e h T 0 1 a t a d n i d e r e t n e r e t c a r a h c c i r e m u n n o N 5 1 r o r r e r e t c a r a h c k c e h c k c o l b d e v i e c e R 6 1 t a m r o f x e l p m o c n i r e t c a r a h c X T S o N 7 1 r o r r e k c e h c y t i r a p d e v i e c e R 8 1 a t a d d e v i e ...

Страница 12: ... e g y x O 1 2 l e u F 1 l e u F 2 e r u t a r e p m e t r e d n u l l e C 3 n e k o r b e l p u o c o m r e h T y n A 4 n e k o r b e l p u o c o m r e h T l l e C 5 n e k o r b e l p u o c o m r e h T e u l F 6 n e k o r b e l p u o c o m r e h T r i A 7 h g i h e r u t a r e p m e T l l e C 8 w o l e r u t a r e p m e T l l e C 9 h g i h e r u t a r e p m e T e u l F 0 1 w o l e r u t a r e p m...

Страница 13: ...D e r u t a r e p m e T e u l F T F o N e r u t a r e p m e T e u l F d e y a l p s i D e r u t a r e p m e T r i A T A o N e r u t a r e p m e T r i A d e y a l p s i D y c n e i c i f f E F E o N y c n e i c i f f E d e y a l p s i D e d i x o n o M n o b r a C O C o N e d i x o n o M n o b r a C d e y a l p s i D e d i x o i D n o b r a C D C o N e d i x o i D n o b r a C d e y a l p s i D s u ...

Страница 14: ...re positioned correctly see Section 5 Check that the parameters programmed in the instrument s Serial Data Communication Page are compatible with those of the computer terminal or host computer see Section 7 If communication is still not possible or is erratic check that the computer terminal or host computer interface has pull up and pull down resistors connected as shown in Figs 9 1 Note If no r...

Страница 15: ... 15 0010101 SYN Synchronous Idle 22 16 0010110 ETB End of Transmission Block 23 17 0010111 CAN Cancel 24 18 0011000 EM End of Medium 25 19 0011001 SUB Substitute Character 26 1A 0011010 ESC Escape 27 1B 0011011 FS File Separator 28 1C 0011100 GS Group Separator 29 1D 0011101 RS Record Separator 30 1E 0011110 US Unit Separator 31 1F 0011111 SP Space 32 20 0100000 33 21 0100001 34 22 0100010 Number ...

Страница 16: ...9 59 1011001 Z 90 5A 1011010 91 5B 1011011 92 5C 1011100 93 5D 1011101 94 5E 1011110 95 5F 1011111 96 60 1100000 a 97 61 1100001 b 98 62 1100010 c 99 63 1100011 d 100 64 1100100 e 101 65 1100101 f 102 66 1100110 g 103 67 1100111 h 104 68 1101000 i 105 69 1101001 j 106 6A 1101010 k 107 6B 1101011 l 108 6C 1101100 m 109 6D 1101101 n 110 6E 1101110 o 111 6F 1101111 p 112 70 1110000 q 113 71 1110001 r...

Страница 17: ...ed A3 Block Check Characters The block check character BCC transmitted is determined by the seven least significant bits in the binary arithmetic sum of a complete message excluding parity bits All characters transmitted before the BCC must be included in the arithmetic sum Refer to Appendix A1 for ASCII characters A3 1 BCC Example Message STXR01A1ETX Find the ASCII decimal equivalent of each char...

Страница 18: ...16 NOTES ...

Страница 19: ...trumentation pH conductivity and dissolved oxygen transmitters and sensors ammonia nitrate phosphate silica sodium chloride fluoride dissolved oxygen and hydrazine analyzers Zirconia oxygen analyzers katharometers hydrogen purity and purge gas monitors thermal conductivity Customer Support We provide a comprehensive after sales service via a Worldwide Service Organization Contact one of the follow...

Страница 20: ...uments 9716 S Virginia St Ste E Reno Nevada 89521 USA Tel 1 775 850 4800 Fax 1 775 850 4808 ABB has Sales Customer Support expertise in over 100 countries worldwide www abb com The Company s policy is one of continuous product improvement and the right is reserved to modify the information contained herein without notice Printed in UK 08 04 ABB 2004 ...

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