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Instruction manual

PM 984

for version P0.90 bis P0.99

Manual PM984

State July 2002 - All subject to change without notice

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Summary of Contents for PM 984

Page 1: ...Instruction manual PM 984 for version P0 90 bis P0 99 Manual PM984 State July 2002 All subject to change without notice 1...

Page 2: ......

Page 3: ...ng of Display SCAL 8 Setting the Zero Point Assignment null 8 Setting the Full Scale Assignment FS 8 Assigning the Zero Value of Analog Output A nul 8 Assigning the End Value of Analog Output A FS 8 L...

Page 4: ...ing 14 Wiring Principle 14 RS 485 Interface with Measurement Bus Protocol 14 Description of Commands for Interfaces 15 General 15 Number Representation 15 Priorities 15 Reading Setting the Operating M...

Page 5: ...Examples Transmission Display 1 2345 1 2345 1 AB CD 1 Ab CD 123 45 123 45 123 123 1 8 8 8 8 Test 123 45 Err 2 Error the sign cannot be represented Measured Value Processing Mode In this mode the inst...

Page 6: ...regulations of the national standards for electrical engineering Scope of Delivery The scope of delivery includes Data sheet PM 984 Slave displaying instrument PM 984 Screw clips clamping devices loc...

Page 7: ...the instrument with the screws to the switch panel Screwdriver can be used to tighten screw clips Note Screw clamp assignment for the connections e g power supply is obtained from the data sheet Atten...

Page 8: ...ividual menu items 6 The display flashes and can be changed by turning 7 Numeric settings such as limit values are carried out dynamically i e the quicker the turn ing the larger the numeric steps 8 T...

Page 9: ...ed mode with code 98 Normal mode with code 1234 Service mode with code 12049 Note Only the menus and are active CODE SAVE Service Mode Protected Mode Press the turn press switch with screwdriver Turn...

Page 10: ...set Only positive values are possible For a failure free limit monitoring the value shall never be greater than the measuring range or half of the toler ance range see Setting the Relay Function rEL 1...

Page 11: ...ge value is displayed Decimal Point Switching dP When the function dP is activated edge triggering the decimal point switches to the second decimal point level making it possible to change the decimal...

Page 12: ...data bits even parity E and 1 stop bit Setting the Communication Address Adr The address for the serial interface at which the instrument is to be addressed can be set The address 0 disables the addre...

Page 13: ...it value can be set The relay returns to rest position only after the mea sured value has risen above the low limit value and the amount of the hysteresis Maintaining the Tolerance Range Go1 Go2 As lo...

Page 14: ...tput setting remains unchanged therefore should be adjusted first Leaving the Sublevel of SYS Menu EndE Execute EndE to leave the sublevel for settings and to return to menu SYS starting posi tion Det...

Page 15: ...trol lines CTS with RTS and DTR with DSR as shown in Fig 2 Attention On the unit side CTS and RTS shall not be bridged as RTS reflects the current interface status and is not static Normal Operation...

Page 16: ...ed to the reception line of the next instrument as shown in Fig 3 All received characters are de livered delayed by one character from every unit This way all characters of the computer go through the...

Page 17: ...rs Therefore the response to several read commands in one command line are several answers When several write set commands are in one com mand line only the acknowledgement for the command line is out...

Page 18: ...nstrument operates in hexadecimal display mode see chapter Brief De scription Only limited interface commands are available Mode 1 In this mode the instrument operates in numerical measured value proc...

Page 19: ...measured value max over 3 3 million values The values are replied in ASCII format with sign followed by decimal point In addition the possibility to set and reset the values is given in order to rest...

Page 20: ...and relay ON 1 Note Make sure that the response of the relay is carried out just as with the limit moni toring If the relays are to respond exclusively via the interface then the corresponding relay...

Page 21: ...points zero value and limit value are assigned to the display values The display value is given as digit without decimal point the decimal posi tions are given separately Example Scaling to 0 mA 0 A...

Page 22: ...lue must be stepped under or stepped over before the relay returns to rest position All values are given in their basic scaling without decimal point Example Limit value pair 2 should give alarm at a...

Page 23: ...relay always active when instrument is on 2 activates when limit value 1 is reached 3 activates when limit value 2 is reached 4 activates when limit value 1 is stepped under 5 activates when limit va...

Page 24: ...and This command serves the identification of instrument the version of instrument and soft ware is returned Example Read instrument version Computer Instrument PM984H V1 10 Manual PM984 22 State July...

Page 25: ...a check sum therefore it can only be transmitted in unchanged form Note The first partial blocks have to be marked as block at transmission i e they are to end with end of block 17h and not with end...

Page 26: ...he latest valid legal regulations for hazardous waste when disposing of the instru ment Technical Data Technical data is obtained from data sheet Guarantee Defects that occur within one year as of del...

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