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Troubleshooting the TX-I/O Island Bus 

Troubleshooting the TX-I/O Island Bus 

 

All points on the TX-I/O island bus are failed. 

 

Verify all three signals, System Neutral ( ), Communication Data (CD), and 
Communication Supply (CS) are connected throughout the entire TX-I/O island 
bus. 

 

The 24 Vac LED on the TX-I/O Power Supply is OFF. 

1.

 

Check for 24 Vac input. 

2.

 

Replace the fuse (4A, 5 × 20 mm, 250V, medium-acting, ceramic fuse). 

 

The I/O Module Status LED (under the address key) is flashing or the I/O point 

Status LED is flashing on an open point. All points are operating normally. 

 

Reposition the TX-I/O Power Supply or Bus Connection Module so that the TX-I/O 

Island Bus extends from the male bus connector. 

 

The TX-I/O Power Supply and Bus Connection Module only supply 24 Vac to 

TX-I/O Modules on the male bus connector.  

 

TX-I/O Modules on the female bus connector of the TX-I/O Power Supply or 

Bus Connection Module do not receive power and have a fault condition. 

 

A point is failed or the point type displayed does not correspond to the point type 

defined in the database. 

1.

 

Using the job drawing or TX-I/O Island Bus layout sheet, verify that the address 

keys are in the correct module. 

2.

 

Reset the module to factory settings. 

 

Verify that the module is supplied with 24 Vdc. 

 

Remove keys that are in the wrong module. 

 

Insert and then remove the reset key.  

 

Cycle power to the module. 

 

Insert the correct address key.  

 

A current point on a Super Universal Module is failed. 

 

Verify that the sensor supply wire is connected to the DC terminal (3, 11, 20, or 

28). 

 

Modules begin oscillating; island bus communication shuts down 

 

Reset: Switch off the 24 Vac supply of the TC Modular or TC-36. 

Relays and current outputs have a power consumption that depends on the supply 

voltage (module supply 24 Vdc). The power consumption of an I/O island will rise when 

all relays are active and all current outputs deliver 20 mA. This causes a drop in the 

supply voltage. 

48 
Siemens Industry, Inc. 

TALON TX-I/O Modules and Island Bus Technical Reference

588-587 

CONFIDENTIAL: For internal use only 

4/6/2010

Summary of Contents for TALON Series

Page 1: ...TALON TX I O Modules and Island Bus Technical Reference Manual Siemens Industry Inc 588 587 ...

Page 2: ...and in the subject thereof By acceptance of the document the recipient acknowledges these rights and undertakes not to publish the document nor the subject thereof in full or in part nor to make them available to any third party without our prior express written authorization nor to use it for any purpose other than for which it was delivered to him ...

Page 3: ...ikely to cause interference in which case users at their own expense will be required to take whatever measures may be required to correct the interference Service Statement Control devices are combined to make a system Each control device is mechanical in nature and all mechanical components must be regularly serviced to optimize their operation All Siemens Industry Inc branch offices and authori...

Page 4: ...Copyright Notice 4 Siemens Industry Inc TALON TX I O Modules and Island Bus Technical Reference 588 587 CONFIDENTIAL For internal use only 4 6 2010 ...

Page 5: ...dules TXM1 8X and TXM1 8X ML 24 Supply Terminal Connections 25 Active Input and Output Support 25 Digital Input Support 27 Local Override Identification Device 28 TX I O Power Supply and Bus Modules 30 TX I O Power Supply Overview 30 TX I O Power Supply Specifications 31 TX I O Power Supply Product Diagram 32 Bus Connection Module Overview 33 TX I O Bus Connection Module Specifications 33 Bus Conn...

Page 6: ... TALON TX I O Modules and Island Bus Technical Reference 588 587 CONFIDENTIAL For internal use only 4 6 2010 Replacing a TX I O Plug in Module 46 Replacing a TX I O Module Assembly 47 Troubleshooting the TX I O Island Bus 48 ...

Page 7: ...er and the connected TX I O modules TX I O island bus communication requires one of the following controllers TC Modular TC 36 TC Modular The TC Modular connects to the island bus through a TX I O Power Supply or TX I O Bus Connection Module using standard DIN rails The TC Modular provides the control database and communications for points on TX I O modules but it does not supply power TC 36 The T...

Page 8: ... O island bus The design of the TX I O Modules provides optimum diagnostics and results in a more efficient installation and maintenance workflow Field wiring may be terminated prior to installation of electronics Connected peripheral devices can be measured without affecting or being affected by the I O module Hot swappable electronic components allow powered electronics to be disconnected and re...

Page 9: ...er Universal 8 Universal 8 DI 16 DI 6 DO Relay Local Override General LCD Display NI 1000 LS PT 1000 385 LT 1000 375 NTC 10K w out diode NTC 100K 0 10 Vdc AI 4 20 mA 0 10 Vdc AO 4 20 mA 1 1 Static Contact NC NO Pulse accumulator 25 Hz Counter with debouncing DI 10 Hz Counter with debouncing 2 ON OFF DO Pulse ON 1 4 20 mA functionality is available only point terminations 5 8 2 10 Hz counter functi...

Page 10: ...d The TC Modular or TC 36 resumes control when the system is switched back to Auto The TC Modular or TC 36 is notified of local overrides and the associated values and they are permanently saved in the module Override Button Pressing an override button in the middle enables or disables the local override press until the override status LED changes to ON or OFF When local override is enabled Pressi...

Page 11: ...Vdc Output Bus Voltage 24 Vac Supply Voltage TXM1 8D 1 1 W TXM1 16D 1 4 W TXM1 8U 1 5 W 96 VA TXM1 8U ML 1 8 W 96 VA TXM1 8X 2 2 W 4 8 W max 200 mA 96 VA TXM1 8X ML 2 3 W 4 8 W max 200 mA 96 VA TXM1 6R 1 7 W TXM1 6R M 1 9 W Consumption Data for I O Points Consumption data for the following devices is required as an aid to transformer and TX I O Power Supply sizing and to estimate the heat emitted ...

Page 12: ... sensors Ni PT 3 0 0 0 0 Temperature sensor NTC 3 0 0 0 0 Resistance 3 0 5 0 5 1 1 10 Vdc 2 0 5 0 5 1 1 20 mA Supply external or 24 Vac 2 0 5 0 5 20 mA 2 wire 2 20 20 AI 20 mA 3 wire 2 4 25 25 10 Vdc 2 2 5 2 5 3 3 AO 20 mA 2 18 18 DI Contact closed 2 2 2 3 3 3 5 2 5 DO Relay contact closed 2 8 8 1 Including module status LED includes LCD and all override LEDs if applicable 2 Including I O status L...

Page 13: ...assembly 12 Test pickups test points 4 Local override facility not applicable to all types 13 Slide fitting to lock assembly into position on standard mounting rail 5 LCD display not applicable to all types 14 TX I O bus connector 6 Detachable label holder 15 TX I O bus connector cover 7 Module label not included 16 Module lock 8 Address key with mechanically encoded module address 17 Module disen...

Page 14: ...nactive With an address key inserted the module has full functionality Based on the address the TC Modular or TC 36 configures the I O module indicates which field devices are connected to this module and which function is required for the field devices CAUTION The address key must be inserted firmly into the terminal base before swiveling it into the plug in module 1 TXIO0039R1 2 TXIO0040R1 14 Si...

Page 15: ...l Base TXIO0056R1 To remove squeeze sides of module and pull Parked position Normal position Separating a Module from its Terminal Base To Park a Module In the parked position the plug in modules are fully isolated from the terminal bases The connected field devices can be measured through the test pickups without being affected by the plug in module electronics 1 Squeeze module sides above the di...

Page 16: ...input present fuse is intact OFF Error No 24 Vac supply voltage input Fuse is blown 1 Address key and module status LED green Flashing or pulsing Fault indication No address key Remote override 2 I O point numbers 3 Terminal number 4 Test terminal 5 Connection terminals System neutral Configurable point Output arrow pointing OUT from center of module Input arrow pointing IN toward center module 24...

Page 17: ...binary value indication 10 I O status LEDs green Flashing or pulsing Fault indication Activity of field devices Module unconfigured no address key Analog value indication Digital Input Modules TXM1 8D and TXM1 16D TXIO0022R1 TXM1 8D 2 3 1 5 7 9 11 13 15 1 1 2 3 4 5 6 7 8 4 2 6 3 8 4 10 5 12 6 14 7 16 8 TXIO0020R1 TXM1 16D 2 3 1 5 7 9 11 13 15 2 1 4 6 8 10 12 14 16 9 10 12 11 13 14 15 16 4 2 6 3 8 ...

Page 18: ...with contacts open Max 50KΩ Min closing opening time ms including bouncing Max bounce time ms Max Counting frequency symmetric Maintained contact 80 40 Pulse contact 50 30 Counter1 40 30 10 Hz 1 Counting function for TXM1 16D is on I O points 1 through 8 only Digital Output Modules TXM1 6R and TXM1 6R M TXIO0018R1 TXM1 6R 24V 250V 2 3 9 15 19 21 25 27 31 33 1 2 3 4 5 6 4 5 6 4 1 8 10 2 14 20 26 32...

Page 19: ...ut Common Connections Digital Output common is isolated for each relay and must be externally wired to other DO common if needed DANGER Digital Output modules connected to high voltage should incorporate a readily accessible disconnect device outside the panel All low voltage and high voltage wiring must be routed separately within an enclosure so that low voltage and high voltage wiring cannot co...

Page 20: ...g to the voltage and current directly proportional Supply Terminal Connections NOTE The neutral of analog inputs and outputs must always be connected to the terminal associated with that I O input All supply terminals are connected in the I O module not in the terminal base The neutral of a digital input on Digital Input Universal and Super Universal modules can be connected to any neutral termina...

Page 21: ... 21 5 to 25 Vdc Contact sensing current 1 0 mA initial current 6 mA Contact resistance with contacts closed Max 200Ω Insulation resistance with contacts open Max 50KΩ Min closing opening time ms including bouncing Max bounce time ms Max Counting frequency symmetric Maintained contact 60 20 Pulse contact 30 10 Mechanical Counter 20 10 25 Hz Active Input and Output Support CAUTION Active inputs and ...

Page 22: ...ended range only with reduced hum injection see below 2 This section describes the measured resolution It is different from the transmitted resolution that the bus delivers into the AI block and that is transformed by Slpe and Icpt 3 The range monitoring of signal type U10 is done with a short NEGATIVE signal of 3 1 V 0 05 mA open circuit detection If a field device has an open output a negative v...

Page 23: ...Vdc supply 22 Vdc Inactive point Invalid value No voltage Unconfigured point TX I O LCD Display by Point Type Point Type Displays in LCD Bottom Row Normal Operation Displays in LCD Top Row Analog Input Current Low or high value Analog Input Resistance Temperature Analog Input Voltage Low or high value Analog Output Current Low or high value Analog Output Voltage Low or high value Digital Input Cou...

Page 24: ...dually configured as analog output analog input or digital input to best meet the specific application needs TXIO0024R1 TXM1 8X 2 3 7 15 11 19 21 23 25 27 29 31 33 5 7 6 8 1 2 3 4 5 6 7 8 4 1 6 8 2 10 12 3 14 20 24 28 32 16 6 4 V V V V V V V V TXIO0025R1 TXM1 8X ML 2 3 V V V V V V V V 7 15 11 19 21 23 25 27 29 31 33 5 6 7 8 1 2 3 4 5 6 7 8 4 1 6 8 2 10 12 3 14 20 24 28 32 16 4 NOTE All supply term...

Page 25: ...lies to terminals 7 15 24 and 32 Voltage AC DC 12 to 24 V Admissable current per module Max 4 A total for all four terminals Fuse 4A in TX I O Power Supply or Bus Connection Module Active Input and Output Support CAUTION Active inputs and output are permitted on the same module when connected sensors are powered from that module When sensors are externally powered active inputs and outputs should ...

Page 26: ...ing Temperature Pt1K 375 50 150 180 C 1 10 mK 1 54 mA Temperature Pt1K 385 50 400 600 C 1 20 mK 1 96 mA Temperature Ni1K LG Ni 1000 50 150 180 C 1 10 mK 1 54 mA Temperature NTC 10K 40 115 C 1 10 mK 25 C 0 14 mA Temperature NTC 100K 40 125 C 1 10 mK 25 C 0 14 mA Voltage measuring U10 0 10 V 3 1 mV Current measuring I420 4 20 mA 1 mA Load resistance 490 440 Ohm pulsed cyclic polling of the I O point...

Page 27: ...the same module Technical Data Digital inputs are not electrically separated from the system electronics Mechanical contacts must be volt free Counter inputs faster than 1 Hz that are routed for more than 32 8 ft 10 m in the same trunking as analog inputs must be shielded Contact sensing voltage 21 5 to 25 Vdc Contact sensing current 1 0 mA initial current 6 mA Contact resistance with contacts clo...

Page 28: ... indicate override status individually per point TX I O Module LCD Symbol Chart The TX I O module LCD displays a symbol to indicate each point type and its current value TX I O Module LCD Display for Errors and Reminders Displays in LCD Top Row Value above range limit Value below range limit Open circuit Short circuit Point in manual override No sensor current No output signal 24 Vdc supply 22 Vdc...

Page 29: ...plays in LCD Top Row Analog Input Current Low or high value Analog Input Resistance Temperature Analog Input Voltage Low or high value Analog Output Current Low or high value Analog Output Voltage Low or high value Digital Input Counter Step indicator Digital Input N C Contact Inactive Active Digital Input N O Contact Inactive Active 588 587 CONFIDENTIAL For internal use only 4 6 2010 ...

Page 30: ...he TX I O Power Supply bridges communication and power from one DIN rail to another and generates 28 8 W 1 2A at 24 Vdc to power TX I O modules and peripheral devices An LED provides an indication of 24 Vdc on the TX I O bus Up to 4 TX I O Power Supplies can be operated in parallel with a maximum of two per DIN rail It can be located within a row of TX I O modules or at the beginning of a new DIN ...

Page 31: ...wer Limited 150 VA max TX I O Bus Extension CS CD 164 ft 50 m total max using two 14 gauge twisted pair cable Ambient operating temperature 32 F to 122 F 0 C to 50 C 5 to 93 rh non condensing UL UL 864 UUKL Smoke Control Equipment UL 864 UUKL7 Smoke Control Equipment UL 916 PAZX CSA 22 2 No 205 PAZX7 Agency Compliance CFR47 Part 15 Class A CFR47 Part 15 Class B Australian EMC Framework C Tick 2004...

Page 32: ... Fuse LED for 24 Vac supply to peripheral devices OFF Error No 24 Vac supply voltage input Fuse is blown 4A 5 20 mm 250V medium acting ceramic fuse 24V 24 Vac supply voltage for the Power Supply module and field devices 4 System neutral ON Normal operation 24 Vdc bus voltage is in the acceptable range 5 green LED for 24 Vdc module supply field supply voltage conductor CS measured on bus OFF Error ...

Page 33: ...tem neutral terminals on the TX I O modules 24 Vdc supply terminals are connected in the I O module not in the terminal base 24 Vdc is current limited in the Bus Connection Module TX I O Bus Connection Module Specifications Dimensions L W D 1 26 3 54 2 75 32 mm 90 mm 70 mm TX I O Bus Communication Signal pass thru Power Requirements 24 Vac 20 input 50 or 60 Hz Power Output Pass thru 24 Vac Power T...

Page 34: ...CD Communication Data Island bus signal 2 TX I O bus connector female Connection for the TC Modular or left covered if at the start of a TX I O bus No field device supply ON Normal operation 24 Vac supply voltage input present fuse is intact 3 Fuse LED for 24 Vac supply to field devices OFF Error No 24 Vac supply voltage input Fuse is blown 4A 5 20 mm 250V medium acting ceramic fuse Field device s...

Page 35: ...oints TC 36 Up to two modules approximately 32 points I O Row Up to two TX I O Power Supply modules may be connected in parallel per I O row Structure of the Island Bus Rows The following devices are combined to create rows of I O modules in the island bus TX I O Power Supply module TXS1 12F4 Bus Connection Module TXS1 EF4 I O modules Installation Rules and Limitations The first device mounted on ...

Page 36: ...ur AI I points using sensors which are powered from the 24 Vdc terminals on the modules 25 mA 0 6 W each The power requirements add up as follows Module Power Requirement TX I O Power Supply Remaining Power Module DC AC DC 28 8 W AC 96 VA TXM1 6R 1 7 W 27 1 W 96 VA TXM1 6R 1 7 W 25 4 W 96 VA TXM1 8D 1 1 W 24 3 W 96 VA TXM1 8U ML 1 8 W 4 actuators 10 VA 22 5 W 56 VA TXM1 8U ML 1 8 W 4 actuators 10 ...

Page 37: ...13 15 1 1 2 3 4 5 6 7 8 4 2 6 3 5 4 10 5 12 6 14 7 16 8 2 1 3 5 7 9 11 13 15 1 1 2 3 4 5 6 7 8 4 2 6 3 5 4 10 5 12 6 14 7 16 8 2 1 3 5 7 9 11 13 15 1 1 2 3 4 5 6 7 8 4 2 6 3 5 4 10 5 12 6 14 7 16 8 2 1 3 5 7 9 11 13 15 1 1 2 3 4 5 6 7 8 4 2 6 3 5 4 10 5 12 6 14 7 16 8 PS 2 1 3 5 7 9 11 13 15 1 1 2 3 4 5 6 7 8 4 2 6 3 5 4 10 5 12 6 14 7 16 8 2 1 3 5 7 9 11 13 15 1 1 2 3 4 5 6 7 8 4 2 6 3 5 4 10 5 1...

Page 38: ...o bottom PXC0053R2 2 1 3 5 7 9 11 13 15 1 1 2 3 4 5 6 7 8 4 2 6 3 5 4 10 5 12 6 14 7 16 8 2 1 3 5 7 9 11 13 15 1 1 2 3 4 5 6 7 8 4 2 6 3 5 4 10 5 12 6 14 7 16 8 2 1 3 5 7 9 11 13 15 1 1 2 3 4 5 6 7 8 4 2 6 3 5 4 10 5 12 6 14 7 16 8 2 1 3 5 7 9 11 13 15 1 1 2 3 4 5 6 7 8 4 2 6 3 5 4 10 5 12 6 14 7 16 8 2 1 3 5 7 9 11 13 15 1 1 2 3 4 5 6 7 8 4 2 6 3 5 4 10 5 12 6 14 7 16 8 2 1 3 5 7 9 11 13 15 1 1 2...

Page 39: ...URE PXA ENC34 34 x 22 x 5 75 in SERVICE BOX PXC0119R1 2 WIRE POWER 24V 3 WIRE COMMUNICATION CS CD 24V T CS CD COMPACT FIELD PANEL NOTE For Smoke Control rating Field Panel must be mounted horizontally or vertically in the lower section of the PX Series enclosure TC 36 with TX I O Bus on Vertical DIN Rails 39 Siemens Industry Inc TALON TX I O Modules and Island Bus Technical Reference 588 587 CONFI...

Page 40: ...ps onto the DIN rail 1 Align the I O module with the Power Supply or Bus Connection Module and slide the I O module down over the DIN rail and TX I O bus connector 2 Push in each mounting tab until it clips onto the DIN rail TXIO0064R1 1 2 3 5 4 Connecting Devices to the TX I O Island Bus Required Tools Screwdrivers for I O Modules The I O module connection terminals have slotted screws No 1 screw...

Page 41: ...m Neutral must be connected to building approved earth ground at a single point only at the 24 Vac transformer Third party Transformer If powering from a third party transformer earth ground the secondary neutral to the same point for all panels powered by that transformer If powering TX I O components from a third party transformer connect the transformer neutral to the building approved earth gr...

Page 42: ... must be connected to the building approved earth ground at the enclosure where the Service Box is installed PXC00122R1 From Service Building Approved Earth Ground Enclosure Back Lock Nut Green Yellow Lock Washers Enclosure Earth Ground Stud Under Wire Cover To Service Box Protective Ground Green Yellow To Service Box Transformer Neutral Green Connect or Tape back as Required Flat Washer or Lock W...

Page 43: ...NICATION 2 WIRE POWER WIRING DIAGRAM IF ALL COMPONENTS ARE INSIDE THE SAME ENCLOSURE 24V CS CD 24V TX I O Power Supply to Bus Connection Module Wiring TC 36 TX I O Modules do not need to be powered off of the same AC source as the TC 36 The island bus driver circuit in the TC 36 is isolated from the power supply of the TC 36 itself The CD CS and System Common signals from the TX I O Power Supply m...

Page 44: ...n CAUTION For information on extending the TX I O island bus outside the enclosure see the TALON Wiring Guidelines Manual 588 581 CAUTION If wires go between enclosures or are in an enclosure with VFD or 100 kVa or larger motors then use twisted pair cables and keep them a minimum of two feet away from any high voltage wires If an installation requires more than one DIN rail connect the Communicat...

Page 45: ...le supply must be present I O Module Power up Sequence Power Off Status TX I O modules shut down when the power supply to the module is below 16 V The LEDs and LCDs are off The modules are inactive Power Up Sequence The modules start up when the power supply to the module rises above 21 5V 1 The module status LED lights up and the LCD briefly displays the address number 2 The status LED indicates ...

Page 46: ...factory default function for each I O point Any previous local override settings are deleted Replacing a TX I O Plug in Module NOTE If reusing an I O module reset the module to factory settings before you begin The plug in module of a TX I O module assembly can be replaced at any time by the same or a compatible I O module type even while the system is running 1 Swivel the address key outward to s...

Page 47: ...e the base of the key plugged into the terminal base 2 Remove the adjacent I O module from its terminal base 3 Working on the TX I O module being removed pull the mounting tabs outward 4 Remove the complete TX I O module assembly plug in module and terminal base Removing the terminal base interrupts the Island Bus communication and power 5 Insert the new TX I O module assembly without an address k...

Page 48: ...ve a fault condition A point is failed or the point type displayed does not correspond to the point type defined in the database 1 Using the job drawing or TX I O Island Bus layout sheet verify that the address keys are in the correct module 2 Reset the module to factory settings Verify that the module is supplied with 24 Vdc Remove keys that are in the wrong module Insert and then remove the rese...

Page 49: ...ly 4 6 2010 If too many of these outputs are configured the voltage may drop too much so that all modules switch off When the voltage recovers the modules switch on again and so forth 1 to 2 times per second In this case the TC Modular or TC 36 reacts by switching off the communication after 5 cycles shortcut between CD and CS the COM LED will light brightly ...

Page 50: ... Grove IL 60089 USA Tel 1 847 215 1000 2010 Copyright Siemens Industry Inc Technical specifications and availability subject to change without notice Document ID 588 587 Manual TALON TX I O Modules and Island Bus Technical Reference Edition 4 6 2010 CONFIDENTIAL For internal use only Register ...

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