Allen-Bradley 1734-OB2 User Manual Download Page 147

Page: 147 / 221

Rockwell Automation Publication 1734-UM001E-EN-P - July 2013

Troubleshoot with the Indicators

149

Troubleshoot I/O
Communication Modules

The status indicators on the communication modules provide system power and
DeviceNet power indications.

1734-PDN DeviceNet Communication Interface Module

System Power

DeviceNet Power

Indicator

Indication

Probable Cause

Recommended Action

System Power

Off

•

Device is not active.

•

DeviceNet power is off, or DC-
DC converter problem is
present.

1. Verify DeviceNet power is on, and apply power if needed.
2. Verify backplane power not exceeded, and correct, as needed.
3. Replace 1734-PDN module.

Green

•

System power is on.

•

DC-DC converter is active (5V).

None.

DeviceNet Power

Off

•

Device is not active.

•

DeviceNet power is off.

Apply DeviceNet 24V power.

Green

Power is on with 24V present.

None.

Summary of Contents for 1734-OB2

Page 1: ...4 IM2 1734 IM4 1734 IV2 1734 IV4 1734 IV8 1734 OA2 1734 OA4 1734 OB2 1734 OB2EP 1734 IV8 1734 OA2 1734 OA4 1734 OB2 1734 OB2EP 1734 OB2E 1734 OB4 1734 OB4E 1734 OB8 1734 OB8E 1734 OV2E 1734 OV4E 1734...

Page 2: ...well Automation Inc with respect to use of information circuits equipment or software described in this manual Reproduction of the contents of this manual in whole or in part without written permissio...

Page 3: ...ted additional information as necessary to more fully explain certain procedures Change Bars Change bars as shown with this paragraph show the areas in this manual that are different from previous edi...

Page 4: ...Publication 1734 UM001E EN P July 2013 iv Summary of Changes Notes...

Page 5: ...34 PDN DeviceNet Communication Interface or a 1734D xx POINTBlock I O module this user manual is the primary documentation Who Should Use This Manual In this manual we assume you know how to do the fo...

Page 6: ...n Instructions publication 1734 IN014 Provides installation information about 1734 APB adapters PROFIBUS Adapter User Manual publication 1734 UM005 Describes how to use 1734 APB adapters Digital AC In...

Page 7: ...ring Base Assembly Installation Instructions publication 1734 IN511 Provides installation information about 1734 TB and 1734 TBS assemblies POINT I O Wiring Base Assembly Installation Instructions pub...

Page 8: ...ribes how to use 1734 IR2 1734 IT2I and 1734 IR2E modules Synchronous Serial Interface Encoder Module Installation Instructions publication 1734 IN581 Provides installation information about 1734 SSI...

Page 9: ...Mounting Base 29 Wiring Digital Modules 30 1734 IB2 1734 IB4 and 1734 IB8 Sink Input Modules 30 1734 IB4D Modules 34 1734 IV2 1734 IV4 and 1734 IV8 Source Input Modules 35 1734 OB2E 1734 OB4E 1734 OB8...

Page 10: ...Wiring Diagram 60 1734 OE2C Analog Current Output Module 61 1734 OE2C Analog Current Output Module Wiring Diagram 61 1734 OE2V Analog Voltage Output Module 62 1734 OE2V Analog Voltage Output Module W...

Page 11: ...Output Wiring Diagram Load Powered by External Power 84 1734D IA8XOA8 POINTBlock 8 AC In 8 AC Out Modules 85 1734D IA8XOA8 POINTBlock 8 AC In 8 AC Out Modules Wiring Diagram 85 Input Wiring Diagram 8...

Page 12: ...03 Analog Input Modules 104 Data 104 Communicate with Your Module 105 Scaling 106 Channel Status 106 Latch Alarms 107 Alarm Disable 107 Calibration Status 107 Digital Filter 108 Update Rate 108 Notch...

Page 13: ...nd 1734 OB8E Source Output Modules 145 1734 OB2 1734 OB4 and 1734 OB8 Source Output Modules 145 1734 OB2EP Protected Output Module 146 1734 IV2 1734 IV4 and 1734 IV8 Source Input Modules 146 1734 OV2E...

Page 14: ...ed Output Module 170 1734 OB4E 1734 OB4 Electronically Protected Output Module 171 1734 OB8E 1734 OB8 Electronically Protected Output Module 171 1734 OB2EP Protected Output Module 171 1734 OV2E Output...

Page 15: ...rking with Dialogs for Digital Output Modules 190 Configure Analog Modules 195 Understanding Data and Connection Formats 196 Working with Dialogs for Analog Input Modules 197 Working with Dialogs for...

Page 16: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 xxiv Notes...

Page 17: ...4 IV8 2 4 and 8 sink output modules 1734 OV2E 1734 OV4E 1734 OV8E 2 4 and 8 protected source output modules 1734 OB2 1734 OB4 1734 OB8 1734 OB2E 1734 OB4E 1734 OB8E 2 protected source output modules 1...

Page 18: ...OB2EP sources a positive voltage of up to 2 A with respect to its DC return per channel The outputs are not isolated from each other For these modules DC outputs are 24V DC nominal with a range of 10...

Page 19: ...is load dependant Features include Autobaud will match baud of existing devices on the network Sequential auto addressing Analog Modules The 1734 analog modules consist of input modules 1734 IE2C and...

Page 20: ...ering units Input Modules These features are available on input modules Latching alarms when set latch low and high alarm status information Available alarms include Low Low Low High High High Disable...

Page 21: ...lies Wiring Base Assemblies and Miscellaneous Modules For more information about the following refer to the installation instructions and user manuals listed in the Related Products and Documentation...

Page 22: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 6 About the Modules Notes...

Page 23: ...t appropriate precautions there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance This equipment is supplied a...

Page 24: ...r has been removed or the area is known to be nonhazardous Secure any external connections that mate to this equipment by using screws sliding latches threaded connectors or other means provided with...

Page 25: ...erminal base Refer to the figures that show these wiring bases To install the mounting base assembly on the DIN rail proceed as follows 2 4 V D C S o u r c e O u t p u t M o d u l e S t a t u s N e t...

Page 26: ...owing the interlocking side pieces to engage the adjacent module power supply or adapter 3 Press firmly to seat the mounting base on the DIN rail 46116 5 3 1 2 8 9 7 4 6 Description Description 1 Modu...

Page 27: ...referenced to the base 1 Using a bladed screwdriver rotate the keyswitch on the mounting base clockwise until the number required for the type of module aligns with the notch in the base WARNING When...

Page 28: ...removable terminal block RTB handle This lets you remove and replace the base as necessary without removing any of the wiring To reinsert the removable terminal block proceed as follows 1 Insert the...

Page 29: ...e lock on the top of the module and pull up on the I O module to remove it from the base 4 Remove the module to the right of the base you are removing noting that the interlocking portion of the base...

Page 30: ...Common 4 and 5 V Supply 6 and 7 Input 0 C V Input 1 C V Input 2 Input 3 Status of Input 2 Status of Input 3 Input 0 1 2 and 3 C Common 4 and 5 V Supply 6 and 7 1734 IB2 1734 IB4 1734 IB8 Input 0 Input...

Page 31: ...n on 3 proximity switches 12 24V DC is supplied through the internal power bus Channel Input Channel Input 0 0 4 4 1 1 5 5 Prox In 0 In 1 In 2 C V V C In 3 Prox Prox Prox V 12 24V DC C Common Sink Inp...

Page 32: ...supplied external auxiliary terminal block ATTENTION When connecting more than one wire in a termination point make sure that both wires are the same gauge and type Channel Input Channel Input System...

Page 33: ...6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 V V V V V V V V C C C C C C C C 1734 IB8 1734 VTM 1734 CTM Prox Prox 1 1734 IB8 V Voltage Out C Common System Power DeviceNet Power Network Status Module Status 17...

Page 34: ...SSV 0 Input 1 SSV 1 Input 2 SSV 2 Input 3 SSV 3 Note that voltage and current are daisychained from either the adapter 1734 FPD module or 1734 EP24DC module Common connections for three wire devices...

Page 35: ...4 and 5 V Supply 6 and 7 1734 IV2 1734 IV4 24VDC Source Input Module Status Network Status 1734 IV8 NODE 0 1 2 3 4 5 6 7 Input 0 Input 2 C V Input 1 Input 3 C V Input 0 Input 2 Input 1 Input 3 Input 0...

Page 36: ...el Input Terminal Channel 0 0 Channel 4 4 Channel 1 1 Channel 5 5 Channel 2 2 Channel 6 6 Channel 3 3 Channel 7 7 Daisychain common and power connections from 1734 Adapter 1734 FPD 1734 EP24DC or from...

Page 37: ...both wires are the same gauge and type 24VDC Source Output Module Status Network Status 1734 OB4E 0 1 2 3 NODE 24VDC Source Output Module Status Network Status 1734 OB8E 0 1 2 3 NODE 4 5 6 7 42016 Mo...

Page 38: ...dule Status Network Status 1734 OB8 0 1 2 3 NODE 4 5 6 7 42016 Status of Output 0 Status of Output 1 Status of Output 2 Status of Output 3 Output 0 Output 0 C C Output 1 Output 1 C C Output 0 Output 2...

Page 39: ...dule Wiring Diagram Channel Output Terminal Common Terminal Power Channel 0 0 6 Channel 1 1 7 Channel 2 2 4 Channel 3 3 5 Module power is supplied from internal power bus 44339 V 12 24V DC C Common Fi...

Page 40: ...mmon Channel 1 1 Channel 2 2 Channel 3 3 Channel 4 4 Channel 5 5 Channel 6 6 Channel 7 7 Module power is supplied from the internal power bus Out 0 Out 1 Out 3 Out 2 Load Load Common must be daisychai...

Page 41: ...0 1 42016 Module Status Network Status Status of Output 0 Status of Output 1 Output 0 Connection Output 0 Connection Output 1 Connection Output 1 Connection C C V V C Common V Supply Channel Output T...

Page 42: ...load Power for the module can be provided by the internal power bus Relay Output Module Status Network Status 1734 OW2 NODE 0 1 41974 Module Status Network Status Status of Output 0 Status of Output...

Page 43: ...odule can be provided by the external power supply 0A 0 Not used Not used 0B 2 Not used Not used 1A 1 Not used Not used 1B 3 Not used Not used Channel Output Common Supply 1 0A 0 0B 2 1A 1 C C V V Out...

Page 44: ...load current or wattage capability beyond the maximum rating by connecting two or more outputs in parallel The slightest variation in relay switching time may cause one relay to momentarily switch the...

Page 45: ...ate a New AC Power Bus Relay Modules Using External Wiring for AC Power AC Power Bus DC Power Bus C V 120V AC PDN IB2 IV2 IB4 IV4 FPD OW2 OW2 OW2 AC Power Bus DC Power Bus C V 120V AC PDN IB2 IV2 IB4...

Page 46: ...ule Status Network Status 1734 OV8E NODE 0 1 2 3 4 5 6 7 Module Status Network Status Status of Output 1 Status of Output 0 Status of Output 0 4 Status of Output 1 5 Status of Output 2 6 Status of Out...

Page 47: ...nal Power Common Terminal Channel 0 0 6 Channel 1 1 7 Channel 2 2 4 Channel 3 3 5 Module power is supplied from internal power bus Out 0 Out 1 Out 3 Out 2 V V V V Load Load Load Load V 12 24V DC C Com...

Page 48: ...240V AC depending on relay load 12V 24V DC 120V 240V AC power for the module is provided by the internal power bus Relay Output Module Status Network Status 1734 OX2 NODE 0 1 0 1 2 3 4 5 6 7 41974 Mod...

Page 49: ...tion in relay switching time may cause one relay to momentarily switch the total load current Make certain that all relay wiring is properly connected before applying any power to the module Total cur...

Page 50: ...0 1 0 1 120V AC PDN OX2 OX2 PDN IB2 IB4 IV2 IV4 FPD OX2 OX2 OX2 AC Power Bus C V 120V AC or 240V AC Based on I O Modules Wiring With AC Modules Only Wiring Using a 1734 FPD Module To Create a New AC...

Page 51: ...1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 EPAC OX2 OX2 AENT IB2 IB4 IV2 IV4 FPD OX2 OX2 OX2 AENT OX2 OX2 OX2 OX2 OX2 AENT IB2 IB4 IV2 IV4 24V DC 24V DC 120V AC or 240V AC Based on I O Modules 24V DC 24V DC 120V...

Page 52: ...etwork Status 1734 IA2 0 1 NODE 120VAC Input Module Status Network Status 1734 IA4 0 1 NODE 2 3 46125 Module Status Network Status Status of Input 0 Status of Input 1 Channel 0 Connection No Connectio...

Page 53: ...power bus Channel Input Terminal Common Terminal Power 0 0 4 1 1 5 2 2 6 3 3 7 Module power is supplied from the internal power bus Prox Ch 0 Ch 1 NC L2 N L1 L1 L2 N NC Prox 3 wire 2 wire 3 5 7 0 1 2...

Page 54: ...atus 1734 IM4 0 1 NODE 2 3 46134 Module Status Network Status Status of Input 0 Status of Input 1 Channel 0 Connection No Connection Channel 1 Connection No Connection L2 N L2 N L1 L1 46134 Module Sta...

Page 55: ...Module power is supplied from the internal power bus Use an external neutral bus or a 1734 CTM module for AC 220V neutral connections if required Prox Ch 0 Ch 1 NC L2 N L1 L1 L2 N NC Prox 3 wire 2 wir...

Page 56: ...dule Status Network Status Status of Output 0 Status of Output 1 Channel 0 Connection Channel 1 Connection Channel 3 Connection L2 N 1734 OA4 Status of Output 0 Status of Output 1 1734 OA2 Status of O...

Page 57: ...erminal Power 0 0 4 1 1 5 2 2 6 3 3 7 44399 L1 120 220V AC Supply L2 N 120 220V AC Return Ch 0 Channel 0 Ch 2 Channel 2 Ch 1 Channel 1 Ch 3 Channel 3 Field power is supplied from the internal power bu...

Page 58: ...12 24V DC is provided by the internal power bus 41974 Module Status Network Status Status of Input 0 Status of Input 1 Input 0 Connection Chas Gnd C V Input 1 Connection Chas Gnd C V 4 20mA Analog In...

Page 59: ...5 7 12 24V DC is provided by the internal power bus 41974 Module Status Network Status Status of Input 0 Status of Input 1 Input 0 Connection Chas Gnd C Input 1 Connection Chas Gnd C Chas Gnd Chassis...

Page 60: ...s provided by the internal power bus 4 20mA Analog Output Module Status Network Status 1734 OE2C NODE 0 1 41974 Module Status Network Status Status of Output 0 Status of Output 1 Output 0 Connection C...

Page 61: ...DC power is provided by the internal power bus Analog Voltage Output Module Status Network Status 1734 OE2V NODE 0 1 Module Status Network Status Status of Output 0 Status of Output 1 Output 0 Connec...

Page 62: ...stem Power CHAS GND C V NC CHAS GND C V NC DeviceNet Connector DeviceNet Power NC No Connection CHAS GND Chassis Ground C Common V Supply V DC NC CHAS GND C V NC C V This supply will be connected to t...

Page 63: ...ll POINT I O Modules 47 Wire the Communication Interface Module for AC Modules Only 1734 FPD Field Potential Distributor Module 0 1 0 1 0 1 120V AC PDN OW2 OW2 AC Power Bus C V NC C V NC NC No Connect...

Page 64: ...ecomes the internal power bus for modules to the right Connect Terminal L1 6 L2 N 4 Chas Gnd 2 120 240V DC becomes the internal power bus for modules to the right NC NC C V V C V DC V 12 24V DC C Comm...

Page 65: ...s Wiring Using a 1734 FPD Module to Create a New DC Power Bus This configuration changes power bus voltage for 12 24V DC systems PDN IB2 IB4 IV2 IV4 FPD OW2 OW2 OW2 C V L2 N L1 AC Power Bus Digital Po...

Page 66: ...solates noisy digital I O power from sensitive analog I O power 1734 EP24DC Expansion Power Supply 42009 0 1 0 1 0 1 0 1 0 1 0 0 1 0 1 1 24V DC Analog I O Power Bus 24V 24V C Digital I O Power Bus PDN...

Page 67: ...als for continuing power V DC 6 7 V DC 4 5 Chas Gnd 2 3 12 24V DC becomes the internal power bus for modules to the right NC NC C V V C V DC V 12 24V DC C Common CHAS GND Chassis ground This DC supply...

Page 68: ...0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Adapter Status DeviceNet Status PointBus Status 1734 ADN DeviceNet Power System Power 1734 EP24DC DeviceNet Power System Power EP24DC ADN 12 24V DC Digital Supply 1734a...

Page 69: ...ION If you connect or disconnect wiring while field side power is on an electrical arc can occur This could cause an explosion in hazardous location installations Be sure that power is removed or the...

Page 70: ...EPAC AC expansion power supply can be used only with POINT I O adapters 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Adapter Status DeviceNet Status PointBus Status 1734 ADN DeviceNet Power System Power 1734 EPAC...

Page 71: ...0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 Adapter Status DeviceNet Status PointBus Status 1734 ADN DeviceNet Power System Power 1734 EPAC Field Power System Power I E 2 C I E 2 V O E 2 C O E 2 V I A 2 O A 2 O W...

Page 72: ...e Out Voltage Out Voltage Out Voltage Out Common Common Common Common 46128 Voltage Out 0 to 7 Common 0 to 7 Common Common Common Common Voltage Out Voltage Out Voltage Out Voltage Out 46127 V Voltage...

Page 73: ...0 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 C C C C C C C C V V V V V V V V 1734 IB8 1734 CTM 1734 VTM Prox Prox 1 1734 IB8 3 wire 2 wire 1734 CTM 1734 OV8 Load Load Load Load Out 7 Out 0 Out 1 Out...

Page 74: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 58 Install POINT I O Modules General Purpose Wiring Diagram C Common 1734 CTM 1734 VTM V Voltage Out Adapter Power Supply Other Devices...

Page 75: ...IB8XOW8 POINTBlock 8 DC In 8 Relay Out Modules 1734D IA8XOA8 POINTBlock 8 AC In 8 AC Out Modules 1734D IA8XOW8 POINTBlock 8 AC In 8 Relay Out Modules 1734D IA16 POINTBlock 16 AC Input Modules 1734D IB...

Page 76: ...e proximity switches 12 24V DC is supplied through the internal power bus V dc NC NC Cin Vin 12 24V dc Power NC No Connection Chas Gnd Chassis Ground C Common V Supply NC NC Cin Vin 0 2 C V 1 3 C V 4...

Page 77: ...ule ATTENTION When connecting more than one wire in a termination point make sure that both wires are the same gauge and type Channel Output Terminal Common Terminal Power Remote Termination Block 3 C...

Page 78: ...t be cycled off on Auto Retry Mode Functionality In auto retry the output recovers once the fault is removed DeviceNet Connector Wiring State Indication Error Bit Off Dark 0 On Yellow 0 Faulted On Red...

Page 79: ...ss Rotary Switch 1 s Node Address Rotary Switch Module Status Network Status I O status V dc NC NC Cin Vin 12 24V dc Power NC No Connection Chas Gnd Chassis Ground C Common V Supply NC NC Cin Vin 0 2...

Page 80: ...1 5 7 2 2 4 6 3 3 5 7 Remote Termination Block 2 4 0 4 6 5 1 5 7 6 2 4 6 7 3 5 7 Connect common on 3 wire proximity switches 12 24V DC is supplied through the internal power bus ATTENTION When connec...

Page 81: ...6A 4 6B 6 7A 5 7B 7 Supply voltage can range from 5V DC to 240V ac depending on relay load 12 24V DC power for the module is provided by the internal power bus ATTENTION When connecting more than one...

Page 82: ...s Rotary Switch 1 s Node Address Rotary Switch Module Status Network Status I O status V ac NC NC L2in L1in 120V ac Power NC No Connection Chas Gnd Chassis Ground L2 N AC Return Neutral L1 AC Power NC...

Page 83: ...rmination Block 1 0 0 4 6 1 1 5 7 2 2 4 6 3 3 5 7 Remote Termination Block 2 4 0 4 6 5 1 5 7 6 2 4 6 7 3 5 7 120V AC is supplied through the internal power bus ATTENTION When connecting more than one...

Page 84: ...nnel 2 2 4 Channel 3 3 5 Remote Termination Block 4 Channel 4 0 6 Channel 5 1 7 Channel 6 2 4 Channel 7 3 5 Module power is supplied from the internal power bus ATTENTION When connecting more than one...

Page 85: ...Node Address Rotary Switch 1 s Node Address Rotary Switch Module Status Network Status I O status V ac NC NC L2in L1in 120V ac Power NC No connection L2 N AC Return Neutral L1 AC Power NC NC 0 2 L2 L1...

Page 86: ...rmination Block 1 0 0 4 6 1 1 5 7 2 2 4 6 3 3 5 7 Remote Termination Block 2 4 0 4 6 5 1 5 7 6 2 4 6 7 3 5 7 120V AC is supplied through the internal power bus ATTENTION When connecting more than one...

Page 87: ...A 1 5B 3 6A 4 6B 6 7A 5 7B 7 Supply voltage is 120V ac 120V AC power for the module is provided by the internal power bus ATTENTION When connecting more than one wire in a termination point make sure...

Page 88: ...itch Module Status Network Status I O Status V ac NC NC L2in L1in 120V ac Power NC No Connection Chas Gnd Chassis Ground L2 N AC Return Neutral L1 AC Power NC NC 0 2 L2 L1 1 3 L2 L1 4 6 L2 L1 5 7 L2 L...

Page 89: ...pe Channel Input Terminal Return Voltage Remote Termination Block 0 Field Power Block Vin L1 6 and or 7 Return L2 N 4 and or 5 Remote Termination Block 1 0 0 6 1 1 7 2 2 6 3 3 7 Remote Termination Blo...

Page 90: ...D IB16 POINTBlock 16 DC Input Modules 14 2 6 15 3 7 120V AC is supplied through the internal power bus Channel Input Terminal Return Voltage DeviceNet Connection Red White Bare Blue Black V V CAN High...

Page 91: ...te Termination Block 2 4 0 4 6 5 1 5 7 V dc NC NC Cin Vin 12 24V dc NC NC Cin Vin 0 2 C V 1 3 C V 4 6 C V 5 7 C V 8 10 C V 9 11 C V 12 14 C V 13 15 C V Field Power Inputs This supply will be connected...

Page 92: ...1 5 7 14 2 4 6 15 3 5 7 Connect common on 3 wire proximity switches 12 24V DC is supplied through the internal power bus ATTENTION When connecting more than one wire in a termination point make sure...

Page 93: ...t Modules The 1734 digital DC input modules feature the following 24V DC nominal DC inputs Input range of 10 28 8V dc 2 4 or 8 sinking or sourcing style inputs Autobaud will match baud of existing dev...

Page 94: ...Byte 7 6 5 4 3 2 1 0 Produces scanner Rx Ch7 Ch6 Ch5 Ch4 Ch3 Ch2 Ch1 Ch0 Consumes scanner Tx No consumed data Where Ch0 input channel 0 Ch1 input channel 1 Ch2 input channel 2 Ch3 channel 3 Ch4 input...

Page 95: ...1 Input 0 Off to On Filter Byte 1 Consume 2 Input 0 On to Off Filter Byte 0 Consume 3 Input 0 On to Off Filter Byte 1 Consume 4 Input 1 Off to On Filter Byte 0 Consume 5 Input 1 Off to On Filter Byte...

Page 96: ...d of existing devices on the network Sequential auto addressing I O messages are sent to consumed and received from produced these POINT I O modules These messages are mapped into the processor memory...

Page 97: ...0 off 1 on Default Data Map for 1734 OB4 1734 OB4E and 1734 OV4E Output Module Message Size 1 Byte 7 6 5 4 3 2 1 0 Produces scanner Rx Not used Ch3 Ch2 Ch1 Ch0 Channel status 1734 OB4E module only 1...

Page 98: ...annel state Where 0 off 1 on 1 The 1734 OB2 1734 OB4 and 1734 OB8 Digital DC Output modules do produce one byte of data Scanner RX but it is always zero Default Data Map for the 1734 OB2EP Output Modu...

Page 99: ...owing Two Form C isolated normally open normally closed electromechanical relays Sink or source a current with respect to power or return Contact outputs isolated from each other Each output rated 5 2...

Page 100: ...an analog input voltage to a digital value The module resolution is 16 bits across 10 10V The module has two modes 0 10V DC default mode 10V dc Scaling to any 16 bit signed integer 32 768 32 767 Defau...

Page 101: ...ut data scanner Tx 1 These are mapped through scan lists in DeviceNet networks and Direct Listen Only or Rack optimized connections in ControlNet and EtherNet IP networks Default Data Map for the 1734...

Page 102: ...t indicates whether the module is operating with or without faults If any alarms or faults are detected this bit is set Channel Status can be read on a per channel basis or by reading the Channel Stat...

Page 103: ...default value for this alarm is as follows 1734 IE2C module is 2867 counts 3 5 mA 1734 IE2V module is 200 counts 200 mV 0 2V High High Alarm Value Bit When the input signal is more than the High Alarm...

Page 104: ...le on the input modules You set a time constant that is used in the equation Yn Yn 1 dt dt TA Xn Yn 1 Where Yn new data Yn 1 old data dt Channel Update Rate in milliseconds TA digital filter time cons...

Page 105: ...or from the Channel Status Byte bits 2 5 You can configure each channel alarm individually Range Status The module reports both Under Range and Over Range status Under Range Status This bit Channel S...

Page 106: ...34 OE2C module operates in Unipolar mode the 1734 OE2V module operates in Unipolar or Bipolar modes Data sent to the module is scaled by the user to any 16 bit number All data sent to the module is si...

Page 107: ...High Byte Channel 1 Status Low Byte Channel 0 Status Not used HCA LCA CM CF Not used HCA LCA CM CF Where CF Channel Fault status 0 no error 1 fault CM Calibration Mode 0 normal 1 calibration mode LCA...

Page 108: ...mA mode the value of 4 mA For the 1734 OE2V module in both modes you assign the high scaler the value of 10V For the lower scaler you assign the following In 0 10V mode the value of 0V In 10V mode the...

Page 109: ...ram state is Low Clamp All values are scaled You can set each action individually and on a per channel basis For an example of what would happen if the module lost communication see the table Channel...

Page 110: ...p Status Bit This status bit Channel Status Bit 3 is set when the output data is clamped to its maximum level The default value is 32 767 counts High Clamp Status can be read on a per channel basis or...

Page 111: ...re not reported in the channel status field The channel LED status indicator stays solid green and Latch Alarms are ignored Change of state has no effect on module behavior Default state is Alarms Ena...

Page 112: ...converter that generates 5V DC that powers the POINTBlock electronics and connects to the POINTBus port to power the expansion I O electronics Module Termination Voltage Cage clamp Spring clamp 1734D...

Page 113: ...es through the internal field power bus POINT I O modules to the right of the module will also have that internal power bus voltage applied unless you use a 1734 FPD 1734 EP24DC or 1734 EPAC module to...

Page 114: ...not consume output data scanner Tx Default Data Map for the 1734D IA8XOA8 AC Input Output Module Message Size 1 Byte 7 6 5 4 3 2 1 0 Produces scanner Rx Ch7 Ch6 Ch5 Ch4 Ch3 Ch2 Ch1 Ch0 Input Data Whe...

Page 115: ...OINT I O Module Data 117 Default Data for the 1734D IB16 Module Message Size 2 bytes 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Produces Rx I15 I14 I13 I12 I11 I10 I9 I8 I7 I6 I5 I4 I3 I2 I1 I0 Consumes Tx...

Page 116: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 118 POINT I O Module Data Notes...

Page 117: ...modules use current or voltage calibrators to send a signal to the module to calibrate it When you calibrate output modules use a digital multimeter DMM to measure the signal the module is sending out...

Page 118: ...4 mA current or 0V voltage 4 Begin calibration 5 Select both channels 6 Accept Low cal for channel 0 both status indicators blink 7 Set current or voltage source to high value 20 mA current or 10V vol...

Page 119: ...internal temperatures to stabilize and reduces drift errors 0 1 0 1 0 1 0 1 0 1 0 1 PDN IE2C 250 Current Source DeviceNet Input Power Supply Voltage Channel 0 Connect to 0 and 4 Channel 1 Connect to 1...

Page 120: ...from the device 2 From the EDS editor click Upload 3 From the General parameter dialog click Device Parameters You see the Device Parameters dialog 4 Select Calibration at the Groups pull down 5 Clic...

Page 121: ...P July 2013 Calibrate Your Analog Modules 123 7 Click Calibration Channel Set to bring up channel selections and select a channel 8 Click the Download to Device button 9 Apply 4 00 mA to the input 10...

Page 122: ...k Accept High Calibration 14 Click the Download to Device button Calibration is complete as soon as High and Low calibration for the selected channels are done successfully 15 Repeat above steps to ca...

Page 123: ...e click the icon to bring up the General parameter dialog You see the EDS editor ask you if you want to upload the configuration from the device IMPORTANT Apply power to the power supply and module fo...

Page 124: ...itor dialog click Upload 3 Click Device Parameters You see the Device Parameters dialog 4 Select Calibration at the Group pull down 5 From the Device Parameters dialog click Calibration Command and se...

Page 125: ...librate Your Analog Modules 127 7 Click Calibration Channel Sel to bring up channel selections and select a channel 8 Click the Download to Device button 9 Select Output Low Reference and download to...

Page 126: ...in the example 11 From the Device Parameters dialog select the Output High Value and download to the module 12 From the Device Parameters dialog enter the value shown on the DVM which is 20 231 in th...

Page 127: ...Your Analog Modules 129 15 From the Device Parameters dialog click Apply You see the EDS Editor and are prompted to download to the module 16 From the EDS Editor dialog click Yes If calibration was ac...

Page 128: ...e 1 Double click the icon to bring up the General parameter dialog 2 Click Device Parameters to view the parameters You see the EDS Editor dialog that asks you if you want to upload the configuration...

Page 129: ...our Analog Modules 131 3 From the EDS Editor dialog click Upload 4 From the General Parameters dialog select Calibration at the Groups pull down 5 Select your channel 6 Click Calibration Command and A...

Page 130: ...input 9 Click Accept Low Calibration 10 Click the Download to Device button The status indicator for the channel being calibrated blinks 11 Set the voltage source to 10 0V 12 Click Accept High Calibr...

Page 131: ...vice Parameters dialog click Abort Calibration and start over Calibrate the Analog Voltage Output Module To calibrate your output module connect the module in a DeviceNet system similar to that shown...

Page 132: ...ick the icon to bring up the General parameter dialog You see the EDS Editor dialog ask you if you want to upload the configuration from the device 2 From the EDS Editor dialog click Upload 3 From the...

Page 133: ...Analog Modules 135 4 Select your channel s 5 Click Calibration Command and Apply 6 Click the Download to Device button The channel status indicator turns off 7 Select a channel 8 Click the Download t...

Page 134: ...librate Your Analog Modules The selected channel status indicator blinks green 10 Enter the value shown on your DVM for the Channel Low Value 10 1234 in the example 11 Select the Output High Value and...

Page 135: ...alogs 10 0057 in this example 13 Repeat these steps for the other channel 14 From the Device Parameters dialog select All and click Finish Calibration to complete the calibration process You see the E...

Page 136: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 138 Calibrate Your Analog Modules If calibration was accomplished the Cal Status reflects good Your module is now calibrated...

Page 137: ...c or change of state is reported back over the network communication adapter A single point of failure is detected and reported at the module and to the control system 24VDC Sink Input Module Status N...

Page 138: ...ce has not completed Auto Baud detection because there is no network traffic Device has not completed dup_MAC_id test Device not powered check module status indicator Apply power to device wait for MA...

Page 139: ...IB4 1734 IB8 Status of Input 0 4 Status of Input 1 5 Status of Input 2 6 Status of Input 3 7 Module Status Network Status 24VDC Sink Input Module Status Network Status 1734 IB8 NODE 0 1 2 3 4 5 6 7 St...

Page 140: ...ed Action I O Status Off All outputs are inactive None Yellow One or more output is active and under control None Flashing red Open circuit detected no load Off state only Connect load or disable no l...

Page 141: ...load detection Solid red Short circuit detected On state only Remove short or overloaded circuit 24VDC Source Input Module Status Network Status 1734 IV2 NODE 0 1 24VDC Source Input Module Status Net...

Page 142: ...Status Network Status Status of Output 0 Status of Output 1 Status of Output 2 Status of Output 3 1734 OV2E 1734 OV4E 1734 OV8E 46137 46138 46139 Indication Probable Cause Recommended Action I O Statu...

Page 143: ...twork Status 1734 OX2 NODE 0 1 41974 Indication Probable Cause Recommended Action I O Status Off Output is off None Yellow Output is on None Indication Probable Cause Recommended Action I O Status Off...

Page 144: ...rol None Indication Probable Cause Recommended Action I O Status Off Input is in the off state None Yellow Input is in the on state None Module Status Network Status Status of Output 0 Status of Outpu...

Page 145: ...mal operation present with channel scanning inputs None Flashing green Channel being calibrated None Solid red No power or major channel fault present Apply field power or replace module as needed Fla...

Page 146: ...ing calibrated None Solid red No power or major channel fault present Apply field power or replace module as needed Flashing red Channel is at end of range 0 25 10 25 or 10 25V Operate within normal r...

Page 147: ...DeviceNet Power Indicator Indication Probable Cause Recommended Action System Power Off Device is not active DeviceNet power is off or DC DC converter problem is present 1 Verify DeviceNet power is on...

Page 148: ...1734adnx Adapter Status DeviceNet Status Subnet Status 1734 ADNX Field Power System Power 1734 ADNX DeviceNet Adapter Indication Probable Cause Recommended Action DeviceNet Status Off Device is not on...

Page 149: ...Make sure all I O modules are connected and using the correct MAC IDs 2 Check Cycling Node Status parameter in RSNetWorx for DeviceNet software Solid red Critical link failure failed communication de...

Page 150: ...to device Apply power to device Alternating red green LED power cycle test module self test is present None Flashing red Recoverable fault has occurred Firmware NVS update MAC ID changed CPU load exce...

Page 151: ...commended Action ControlNet A B Status Viewed Together A and B Both Steady Off Reset no power or entire network interface deactivated None or cycle power Alternating red green Self test mode is presen...

Page 152: ...Power System Power Field Power Adapter Status PROFIBUS Status POINTBus Status 1734 2 Indication Probable Cause Recommended Action Adapter Status Off No power supplied Hardware check is in progress Ini...

Page 153: ...ware check is in progress Initialization is in progress Apply power Solid green Normal operation present None Flashing red 1 Hz Incorrect POINT I O module installed POINT I O module removed from backp...

Page 154: ...overable fault has occurred Self test failure present checksum failure or ramtest failure at power cycle Firmware fatal error present Replace adapter Indication Probable Cause Recommended Action POINT...

Page 155: ...work cabling and correct as needed Flashing green Off Transmit or receive activity present None Steady green Link established None Network Status Off Device not initialized The module does not have an...

Page 156: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 158 Troubleshoot with the Indicators Notes...

Page 157: ...169 1734 IM2 Input Module 169 1734 IM4 Input Module 169 1734 OA2 Output Module 170 1734 OA4 Output Module 170 1734 OB2E 1734 OB2 Electronically Protected Output Module 170 1734 OB4E 1734 OB4 Electron...

Page 158: ...Diagnostics 7 6 5 4 3 2 1 0 Produces scanner Rx Ch1 Ch0 Consumes scanner Tx No consumed data Where Ch0 channel 0 Ch1 channel 1 0 off 1 on 7 6 5 4 3 2 1 0 Produces scanner Rx Ch3 Ch2 Ch1 Ch0 Consumes s...

Page 159: ...1 Consume 2 Input 0 On to Off Filter Byte 0 Consume 3 Input 0 On to Off Filter Byte 1 Consume 4 Input 1 Off to On Filter Byte 0 Consume 5 Input 1 Off to On Filter Byte 1 Consume 6 Input 1 On to Off F...

Page 160: ...re Ch 0 input channel 0 data Ch 1 input channel 1 data 7 6 5 4 3 2 1 0 Produces scanner Rx Ch3 Ch1 Ch1 Ch0 Consumes scanner Tx No consumed data Where Ch 0 input channel 0 Ch 1 input channel 1 Ch 2 inp...

Page 161: ...consumed data Where Ch0 channel 0 Ch1 channel 1 0 off 1 on Table cell Heading 7 6 5 4 3 2 1 0 Produces scanner Rx Ch3 Ch2 Ch1 Ch0 Consumes scanner Tx No consumed data Where Ch0 channel 0 Ch1 channel...

Page 162: ...3 2 1 0 Produces scanner Rx No produced data Consumes scanner Tx Not used Ch1 Ch0 Channel state Where 0 off 1 on 7 6 5 4 3 2 1 0 Produces scanner Rx No produced data Consumes scanner Tx Not used Ch 3...

Page 163: ...2 1 0 Consumes scanner Tx Not used Ch3 Ch2 Ch1 Ch0 Channel state Where 0 off 1 on 7 6 5 4 3 2 1 0 Produces scanner Rx Ch7 Ch6 Ch5 Ch4 Ch 3 Ch 2 Ch 1 Ch 0 Channel status 1734 OB8E only Where 0 no error...

Page 164: ...roduces scanner Rx Not used Ch1 Ch0 Channel status Where 0 no error 1 error 7 6 5 4 3 2 1 0 Consumes scanner Tx Not used Ch1 Ch0 Channel state Where 0 off 1 on 7 6 5 4 3 2 1 0 Produces scanner Rx Not...

Page 165: ...Message Size 1 Byte 7 6 5 4 3 2 1 0 Consumes scanner Tx Ch 7 C h6 Ch 5 Ch 4 Ch 3 Ch 2 Ch 1 Ch 0 Channel state Where 0 no error 1 error 7 6 5 4 3 2 1 0 Consumes scanner Tx Not used Ch 1 Ch 0 Channel st...

Page 166: ...e LA Low Alarm 0 no error1 fault HA High Alarm 0 no error1 fault LLA Low Low Alarm 0 no error1 fault HHA High High Alarm 0 no error1 fault UN Underrange 0 no error1 fault OR Overrange 0 no error1 faul...

Page 167: ...Fault status 0 no error 1 fault CM Calibration Mode 0 normal 1 calibration mode LCA Low Clamp Alarm 0 no error 1 fault HCA High Clamp Alarm 0 no error 1 fault Channel Status Bytes Bit 7 Bit 6 Bit 5 B...

Page 168: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 176 Default Data Maps Notes...

Page 169: ...or a POINT I O module with a network adapter The example figure shows a 1734 ADN adapter 1734 EP24DC or 1734 FPD HxWxL 76 2 3 0 x 25 4 1 0 x 133 4 5 25 1734 EP24DC or 1734 FPD HxWxL 76 2 3 0 x 54 9 2...

Page 170: ...DN DeviceNet Communication Interface module L 1 0 of I O x 0 47 of FPD x 1 0 in Allow a 25 4 1 0 air gap all around 133 4 5 25 mm in L 25 4 of I O x 12 0 of FPD x 25 4 mm 1734 FPD HxWxL 76 2 3 0 x 25...

Page 171: ...ock Module See the figure for mounting dimensions for a 1734 D POINTBlock module 1 air gap all around mm in 133 4 5 25 L 60 0 of I O x 12 0 of FPD x 25 4 mm Allow a 25 4 1 0 Secure DIN rail to mountin...

Page 172: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 180 Mounting Dimensions Notes...

Page 173: ...alog for information about how to complete entries on the dialogs From a warning dialog click Help at the bottom of the dialog to get information about that specific error Configure Digital Modules To...

Page 174: ...e the entry for Requested Packet Interval RPI if the field is selectable per the following table 6 Choose Module Info to see a dialog that provides identification and status information 7 See the appr...

Page 175: ...the following You do not delete the existing module You do not create a new module You bring forward configuration data for the new settings Any configuration data you do not bring forward sets to th...

Page 176: ...all controls except for the Description field on the General dialog which remains active in all modes You revert to each control that contains an edited value including the Description field on the G...

Page 177: ...ral dialog select Configuration You see the Configuration dialog which is what you use to configure the filter for input points for the following Off to On On to Off The Configuration dialog displays...

Page 178: ...lect these dialogs from the General dialog when you add an output module with the following entries for connection type Data Rack Optimization Enter values for the Fault Program Action and Configurati...

Page 179: ...verload and open load diagnostic status 2 From the Fault Program Action dialog complete entries referring to the table for a summary of how to make these entries 3 From the Fault Program Action dialog...

Page 180: ...e following Overload diagnostic status Overload and open load diagnostic status To complete the entries on this dialog proceed as follows 1 From the General dialog select Configuration You see the Con...

Page 181: ...tching for tracking transient or momentary faults You do not affect status LEDs when using latched alarms If You Select Then Latch Faults Alarm bits stay faulted if an alarm checked occurs Clear the f...

Page 182: ...hecks all the boxes in the column and enables the bit for all the channels in the module 4 From the bottom of the Configuration dialog perform one of the following Click another tab at the top of the...

Page 183: ...troller If Connection Fails While in Run Mode 5 From the Connection dialog enter a value for Requested Packet Interval RPI if the field is selectable per the table 6 From the Connection dialog click C...

Page 184: ...settings You lose all configuration data from previous data formats The choices for connection type for modules depend on the communication type format for the parent adapter as explained in the user...

Page 185: ...alog input module is 16383 Default for 1734 IE2V analog input module is 10000 Low Engineering 32768 32767 Default for 1734 IE2C analog input module is 3277 Default for 1734 IE2V analog input module is...

Page 186: ...guration Dialog This dialog does not appear for Listen Only connections To complete the entries on this dialog proceed as follows 1 From the top of the General dialog click Alarm Configuration You see...

Page 187: ...checkbox for the following if desired Disable All Alarms A check in the checkbox tells the module to not report alarms This is disabled in Hard Run mode only Latch Process Alarms A check in the check...

Page 188: ...lected at least one of the channels Note that when you press the F1 button on your keyboard or click Help from the wizards and warning messages that appear during calibration you get detailed informat...

Page 189: ...ialogs for analog output modules Configuration Alarm Configuration Fault Program Action Calibration To display the dialogs you typically click Fault Program Action Configuration Alarm Configuration or...

Page 190: ...to default values or Click Apply to save changes you made on any of the dialogs and continue to display the dialog noting that you enable the Apply button when you make changes to any of the dialogs...

Page 191: ...r Low Clamp limit default is 32768 For Low Clamp limit range is 32768 to 32767 4 Choose unlatch options one of these ways Click Unlatch to unlatch an individual alarm Click Unlatch All to unlatch all...

Page 192: ...he dialog noting that you enable the Apply button when you make changes to any of the dialogs Work with the Calibration Dialog To complete entries on this dialog proceed as follows Perform calibration...

Page 193: ...dialog check the Calibrate checkbox to specify which channel to calibrate 4 From the Calibration dialog click Start Calibration which is active when the system is online and you selected at least one...

Page 194: ...re You see a Low Value dialog 6 From the Low Value dialog follow the instructions you see and click Next You see the High Value dialog 7 From the High Value dialog follow the instructions you see and...

Page 195: ...libration fails the Results dialog shows a failed calibration 9 If calibration is successful click Finish otherwise from the Results dialog click Retry to calibrate the channel that did not calibrate...

Page 196: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 204 Configure POINT I O Modules in RSLogix 5000 Software Notes...

Page 197: ...b com networks eds Commissioning a Node Methods for commissioning nodes are the following RSNetWorx commissioning pull down Sequential Auto Addressing feature Third party configuration software Using...

Page 198: ...ve it from the network recommission it then reinstall it on the network Use Sequential Auto Addressing Sequential Auto Addressing SAA reassigns the node address of every module to the right of the one...

Page 199: ...ing third party configuration software load the EDS files into the software and follow the designers instructions Configure Digital Modules Using RSNetWorx Software To configure digital input modules...

Page 200: ...etting the parameters Configure Input Modules See the figure for a Device Parameters dialog for a 1734 IB4 input module example All digital input modules have parameters similar to this example On thi...

Page 201: ...Parameters dialog use this procedure 1 From the General Parameters dialog at the groups list Select Configuration and the parameters you want 2 From the Device Parameters dialog select Single and cha...

Page 202: ...the network and you are prevented from selecting a specific communication rate 3 From the Device Parameters dialog select the filter of your choice by selecting and typing in the filter time noting th...

Page 203: ...similar to the one for the 1734 OB4E output module used in this procedure 1 From the General Parameters dialog click Device Parameters to get the dialog for setting parameters 2 From the Device Param...

Page 204: ...hange all selections at once noting that configurable parameters include the following Fault Value Off on Fault Action Fault value hold last state Idle Value Off on Idle Action Idle value hold last st...

Page 205: ...Configure POINT I O Modules for DeviceNet Networks 213 See the figures for dialogs for selecting Fault Action and Fault Value See the figure for a dialog for selecting Idle Action and Idle Value See t...

Page 206: ...omation Publication 1734 UM001E EN P July 2013 214 Configure POINT I O Modules for DeviceNet Networks See the figure for a dialog for selecting Enable No Load See the figure for a dialog for selecting...

Page 207: ...dialog for selecting autobaud 5 From the Device Parameters dialog click Download to Device To configure the 1734 OW2 relay output module use this procedure 1 From the General dialog click Device Param...

Page 208: ...include sequential addressing and autobaud or if not using autobaud the communication rate The Groups pull down menu includes the following All parameters I O POINTBus Configuration Select to set the...

Page 209: ...Rockwell Automation Publication 1734 UM001E EN P July 2013 Configure POINT I O Modules for DeviceNet Networks 217 Autobaud Enable Disable...

Page 210: ...ce Parameters dialog to monitor the output click Start Monitor noting the following The output value is displayed for each scan Click All to scan all values The Start Monitor button turns to Stop Moni...

Page 211: ...ctual dialogs for your particular module may not be identical to the ones shown here To configure analog input modules proceed as follows 1 Open your RSNetWorx for DeviceNet software You see the RSNet...

Page 212: ...load to upload existing parameters from the device 6 From the Device Parameters dialog at the Groups list select Configuration to select parameters 7 Select Single to change or configure parameters on...

Page 213: ...output module use this procedure 1 Double click the icon The General dialog appears 2 From the General dialog click Device Parameters to set parameters You see the EDS Editor dialog 3 From the EDS Edi...

Page 214: ...s dialog set Run or Idle noting that any parameter with a lock indicated next to it is nonchangeable 6 Select values for current or voltage For current click one of the following 4 20 mA 0 20 mA For v...

Page 215: ...July 2013 Configure POINT I O Modules for DeviceNet Networks 223 Go to Fault Value 7 For Enable Alarm Latch select Enable Latching Alarms or Disable 8 For Disable Alarm select Alarms Enabled or Alarms...

Page 216: ...omation Publication 1734 UM001E EN P July 2013 224 Configure POINT I O Modules for DeviceNet Networks With current or voltage modules if you change range values note that it affects range or scaling o...

Page 217: ...dule about 13 14 default data map 163 troubleshoot 140 wire 30 1734 IB8 module about 13 14 default data map 162 troubleshoot 140 wire 26 27 1734 IE2C module about 16 default data map 170 troubleshoot...

Page 218: ...fault data map 169 troubleshoot 143 wire 43 1734 OW2 module about 13 default data map 169 troubleshoot 144 wire 38 1734 OW4 module about 13 default data map 169 troubleshoot 144 wire 38 1734 OX2 modul...

Page 219: ...rNet IP network 13 211 F fault and idle mode state 109 filter notch 104 192 H high alarm 105 194 high high alarm 105 194 I indicators LED 137 install I O modules 22 mounting base assembly 21 removable...

Page 220: ...dule 144 1734 OW4 module 144 1734 OX2 module 145 analog modules 147 digital modules 140 I O communications modules 150 U under range status 105 update rate 104 W wiring 120 220V AC output module 53 12...

Page 221: ...and needs to be returned follow these procedures Documentation Feedback Your comments will help us serve your documentation needs better If you have any suggestions on how to improve this document com...

Search results

Summary of Contents for 1734-OB2

Reviews:

Allen-Bradley 1734-OB2, User Manual, Page: 147 / 221

Search results

Summary of Contents for 1734-OB2

Reviews: