Proline Promass 83E/F/O Modbus RS485 Operating Instructions

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WiringProline Promass 83 Modbus RS485dgbaACdgbBbgdaN(L–)B (RxD/TxD-P)A (RxD/TxD-N) 27B (RxD/TxD-P) 26– 25+ 24f – 23+ 22– 21+ 20degL1 (L+)1 2A (RxD/TxD-N)+ – + – + –20 2122232425 26 27 fN (L-)L1 (L+)21cbbcgedFig. 22:Connecting the transmitter, Cable cross-section: max. 2.5 mm A View A (field housing)B View B (stainless steel field housing)C View C (wall-mount housing)a Connection compartment coverb Cable for power supply: 85 to 260 V AC, 20 to 55 V AC, 16 to 62 V DCTerminal No. 1: L1 for AC, L+ for DCTerminal No. 2: N for AC, L- for DCc Ground terminal for protective groundd Fieldbus cableTerminal No. 26: B (RxD/TxD-P)Terminal No. 27: A (RxD/TxD-N)e Ground terminal for signal cable shield/fieldbus cable shieldObserve the following:– the shielding and grounding of the fieldbus cable ä 27– that the stripped and twisted lengths of cable shield to the ground terminal are as short as possiblef Service adapter for connecting service interface FXA193 (Fieldcheck, FieldCare)g Signal cable: see terminal assignment ä 31a0002591Page 30 • MN0M030Issue/Rev. 0.2 (12/12)
Proline Promass 83 Modbus RS485Wiring"Caution!4.3.2 Terminal assignmentOnly certain combinations of submodules (see Table) on the I/O board are permissible. Theindividual slots are marked and assigned to the following terminals in the connection compartmentof the transmitter:• Slot "INPUT / OUTPUT 3" = Terminals 22 / 23• Slot "INPUT / OUTPUT 4" = Terminals 20 / 21Terminal No. (inputs/outputs)Order characteristicfor "inputs/outputs"20 (+) / 21 (–)Submodule onslot No. 422 (+) / 23 (–)Submodule onslot No. 324 (+) / 25 (–)Fixed onI/O board26 = B (RxD/TxD-P) 27 = A (RxD/TxD-N)Fixed on I/O boardQ – – Status input Modbus RS4857 Relay output 2 Relay output 1 Status input Modbus RS485N Current output Frequency output Status input Modbus RS485!Note!The electrical values of the inputs and outputs can be found in the "Technical data" section.4.4 Degree of protectionThe measuring device fulfill all the requirements for IP 67.Compliance with the following points is mandatory following installation in the field or servicing,in order to ensure that IP 67 protection is maintained:• The housing seals must be clean and undamaged when inserted into their grooves. The seals must be dried, cleaned or replaced if necessary.• The threaded fasteners and screw covers must be firmly tightened.• The cables used for connection must be of the specified outside diameter ä 112, cable entries.• The cable entries must be firmly tighten (point a å 23).• The cable must loop down in front of the cable entry ("water trap") (point b å 23). This arrangement prevents moisture penetrating the entry.! Note!The cable entries may not be point up.abFig. 23:Installation instructions, cable entriesa0001914"Caution!• Remove all unused cable entries and insert plugs instead.• Do not remove the grommet from the cable entry.Do not loosen the screws of the sensor housing, as otherwise the degree of protection guaranteedby no longer applies.Issue/Rev. 0.2 (12/12) MN0M030 • Page 31
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The specifications contained herein
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Proline Promass 83E/F/O Modbus RS485 Operating Instructions

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