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SD39RIO-1 INSTALLATION 
 

 
 

 

 

 
January 2001 

2-15

2.5.2   IOBUS Cable Connection up to 300 ft. (91 m) 
           for Redundant and Non-Redundant Systems

 

 
This section describes the preparation and installation of IOBUS cables for rack-to-rack redundant or non-
redundant APACS+ or QUADLOG systems when the needed cable length exceeds the maximum standard 
length of 98.4 Feet (30 meters) of a factory-prepared IOBUS cable, but is less than 300 feet (91 meters).  
 
The cable preparation procedure provided here involves splicing a custom-length cable that has unprepared 
ends. This kind of cable is type W2072.  It is intended for use as an IOBUS extension cable between two 
Remote I/O Racks, or between a Remote I/O Rack and another type of rack (e.g., MODULRAC or 
SIXRAC). 
 
The Remote I/O Rack can accommodate either prepared or unprepared ends of available IOBUS cable(s). A 
prepared cable end has a molded connector on it and is to be plugged into the appropriate IOBUS IN or 
IOBUS OUT connector on the rack’s backplane (see Figure 2-4).  The wires emerging from an unprepared 
cable end are to be individually stripped and connected directly to the screw terminals of the associated 
IOBUS IN or IOBUS OUT terminal block, also located on the rack’s backplane (see Figure 2-4).  
 
When another type of rack (e.g., MODULRAC or SIXRAC) is also used, it requires a prepared cable end 
(with a connector) to attach that rack to the IOBUS.  In these instances, you must supply DIN rail-mounted 
style terminal blocks (one for A side and one for B side). The terminal blocks are needed to transition 
between a W2072 unprepared cable end and another cable segment that has a prepared end that is usually 
obtained by cutting a standard IOBUS extension cable in half and preparing the cut end. To modify an 
IOBUS cable in this way, refer to section 2.5.5.  Each user supplied terminal block must be able to 
accommodate wire sizes of 16 to 28 AWG (1,3 mm

2

 to 0.09 mm

2

). 

 

IMPORTANT 

 

It is important to preserve continuous cable impedance through all splice 
connections. This is to minimize signal reflections within the cable and help assure 
collision-free communications. After preparing cable ends, make sure each intended 
pair is re-twisted at the same intervals all the way to the screw terminals of the 
terminal blocks.  Refer to Figures 2-12 and 2-13. 

 
 

To connect a W2072 IOBUS cable between a terminal block and a Remote I/O Rack:

 

 
1.  Determine the length of W2072 cable needed to connect from the terminal block location to the 

appropriate IOBUS connection point on the Remote I/O Rack’s backplane. Allow slack for cable 
stripping, dressing, tagging, and strain relief at each end.  

 
2. At the user-supplied terminal block, provide strain relief for the W2072 cable end. Connect the W2072 

cable conductors (wires) to the terminal block. Wire stripping and color code information for making 
connections are provided in Table 2-1 and Figure 2-11 respectfully. 

 

Содержание QUADLOG

Страница 1: ...Siemens Moore Process Automation Inc INSTALLATION AND SERVICE INSTRUCTION SD39RIO 1 Rev 1 January 2001 APACS and QUADLOG Remote I O Rack Installation and Service Instruction ...

Страница 2: ......

Страница 3: ...chanisms 2 7 2 5 IOBUS Cable and Shunt Jumper Connections 2 8 2 5 1 Standard IOBUS Cable Connections 2 10 2 5 2 IOBUS Cable Connection up to 300 ft 91 m for Redundant and Non Redundant Systems 2 15 2 5 3 IOBUS Cable Connection up to 1500 ft 460 m for Non Redundant APACS Systems Only 2 20 2 5 4 IOBUS Cable Connection up to 1500 ft 460 m for Rack to Rack Redundant APACS and All QUADLOG Systems 2 25 ...

Страница 4: ...erica 3 2 3 6 Return of Equipment Outside North America 3 2 4 0 Circuit Description 4 1 4 1 Communications 4 1 4 2 IOBUS Signals 4 1 4 3 DC Power Bus 4 2 5 0 Accessories Attachments and Options 5 1 5 1 Accessories 5 1 5 2 Attachments 5 1 5 3 Options 5 1 6 0 Specifications 6 1 6 1 Mechanical Specifications 6 1 6 2 Environmental Specifications 6 1 6 3 Electrical Specifications 6 2 6 4 Electrical Cla...

Страница 5: ...eparation 2 22 2 15 Terminal Block to Rack W2040 Cabling up to 1500 ft 460 m for Non Redundant APACS Systems 2 23 2 16 Rack to Rack W2040 Cabling up to 1500 ft 460 m for Non Redundant APACS Systems 2 24 2 17 Belden 8627 Cable End Preparation 2 27 2 18 Terminal Block to Rack W2040 8627 Cabling up to 1500 ft 460 m for Node to Node Redundant APACS and All QUADLOG Systems 2 28 2 19 Rack to Rack W2040 ...

Страница 6: ...ronmental Specifications 6 1 6 3 Remote I O Rack Electrical Specifications 6 2 6 4 Agency Approvals 6 3 Siemens Moore Process Automation Inc assumes no liability for errors or omissions in this document or for the application and use of information included in this document The information herein is subject to change without notice APACS and QUADLOG are trademarks of Siemens Moore Process Automati...

Страница 7: ...ce Provides periodic maintenance procedures repair recommendations and suggestions for spare and replacement parts Section 4 Circuit Description Briefly describes the backplane circuitry and signals Section 5 Accessories Attachments and Options Lists the available accessories attachments and options available for the Remote I O Rack Section 6 Specifications Lists the rack s mechanical electrical a...

Страница 8: ... slots consisting of any combination of Remote I O Racks 4 slots SIXRACs 6 slots MODULRACs 10 slots and UNIRACs 1 slot These racks are interconnected serially with IOBUS A and B cables Note that each control module ACM CCM Bus Continuation Module BCM Bus Diverter Module BDM and each empty slot counts as a slot Two removable dual function Bus Terminate or Bus Continue IOBUS Shunts are provided for ...

Страница 9: ...or support for the first time a personal caller number is assigned Having the number available when calling for support will allow the TIC representative taking the call to use the central customer database to quickly identify the caller s location and past support needs Product part number or model number and version If there is a problem with product operation Whether or not the problem is inter...

Страница 10: ...com techservices Tel 65 299 6051 Fax 65 299 6053 E mail TICGroupAP smpa siemens com Hours of Operation 9 a m to 6 p m Singapore time Monday Friday except holidays TIC ASIA Secure Web Site www smpa siemens com techservices Tel 44 1935 470172 Fax 44 1935 706969 E mail TICGroupEurope smpa siemens com Hours of Operation 8 30 a m to 5 15 p m GMT BST Monday Thursday except holidays 8 30 a m to 4 00 p m ...

Страница 11: ...companies the symbol to identify something that can be dangerous and possibly life threatening to personnel For example WARNING Risk of electric shock Remove power from all involved wires before making connections to the Marshalled Termination Assembly Background Color Yellow Symbol Color Black Outline Color Black ISO 3864 No B 3 1 CAUTION Refer to accompanying Installation and Service Instruction...

Страница 12: ...ment format PDF printed form or both Refer to these documents as needed or as called for in text Documents may be located on your workstation s hard drive or on a CD supplied with your system Grounding Practices Installation and Service Instruction document number SD39GND 1 MODULPAC 2000 Installation and Service Instruction document number SD39MODULPAC 2 Power Supply Rack POWERAC Installation and ...

Страница 13: ...ble construction and electrical codes 2 1 Hardware Identification The Remote I O Rack is identified by a label affixed to the left side of its chassis An example label is shown in Figure 2 1 It provides Remote I O Rack information such as its model part number and serial number S N It also lists power requirements and space is provided for additional information such as safety agency certification...

Страница 14: ...The overall scope of controller communications and the number of racks needed to accommodate needed control and I O modules There are four types of racks available UNIRAC up to three slots Remote I O Rack four slots SIXRAC six slots and MODULRAC ten slots Note the following An IOBUS can support a maximum of 40 slots as described in section 1 1 The actual capacity depends upon the type of rack used...

Страница 15: ...ired enclosure layout 4 Prepare or amend system drawings to document The physical location of Remote I O Rack s plug in I O modules and other related items such as power supplies and marshalled termination assemblies Identify the routing of all associated cables and power wiring e g DC power twinaxial communications cable IOBUS and MODULBUS Do not assign IOBUS cables to conduits containing telepho...

Страница 16: ...INSTALLATION SD39RIO 1 January 2001 2 4 Figure 2 2 Remote I O Rack Dimensions ...

Страница 17: ... and dirt is abrasive and can cause intermittent contact in connectors associated with the Remote I O Rack s backplane Liquid and gaseous contaminants can have a corrosive effect on metal rubber plastic and circuit board components Extended exposure to these contaminants may result in equipment malfunction To reduce contaminant related equipment malfunctions Identify contaminants and implement met...

Страница 18: ...rton 2 2 4 4 Equipment Handling and Storage A Remote I O Rack can be safely handled without undertaking special handling procedures however do not subject it to excessive shock or vibration The storage temperature and humidity parameters of section 6 2 must be met for rack storage 2 3 Remote I O Rack Mounting The Remote I O Rack is flanged for flush mounting on a flat surface such as a wall or ins...

Страница 19: ...isted in Table 5 3 feature the screwlock type mechanism Earlier APACS system devices used spring latch cable parts and cable connection points To accommodate system upgrade or retro fit situations where a cable must mate with an incompatible connector a Cable Adapter Kit P N 16056 593 is available for conversion from the spring latch type to screwlock type or vice versa The Remote I O Rack feature...

Страница 20: ...ctors The Remote I O Rack provides three strain relief tie points on each side of its chassis For reference tie points on the left side of the chassis are shown in Figure 2 5 The tie points are intended to provide strain relief to IOBUS power supply and cooling fan cables Secure cables to the tie points with common cable ties ...

Страница 21: ...redundant sides A and B and can have a maximum capacity of 40 nodes defined as one control module and up to 39 I O modules The actual nodal capacity depends upon the type of rack used or the combination of racks used see section 2 2 2 A minimum node IOBUS consists of two modules a control module and an I O module however the control module must reside in a SIXRAC or a MODULRAC to communicate over ...

Страница 22: ...f the rack s backplane as shown in Figure 2 4 and 2 9 2 Connect the involved racks as described below A Consult system drawings to identify the type of racks associated with IOBUS including those mounted in separate cabinets B If racks are located in separate cabinets IOBUS cables should already have been routed between cabinets and tagged Refer to the following examples Example A Connecting a SIX...

Страница 23: ...SD39RIO 1 INSTALLATION January 2001 2 11 Figure 2 6 IOBUS Connections SIXRAC to Remote I O Rack ...

Страница 24: ...INSTALLATION SD39RIO 1 January 2001 2 12 Figure 2 7 IOBUS Connections Remote I O Rack to Remote I O Rack ...

Страница 25: ...SD39RIO 1 INSTALLATION January 2001 2 13 Figure 2 8 IOBUS Connections MODULRAC to Remote I O Rack ...

Страница 26: ...INSTALLATION SD39RIO 1 January 2001 2 14 Figure 2 9 Remote I O Rack Backplane Details Figure 2 10 IOBUS Extension Cable ...

Страница 27: ... connector to attach that rack to the IOBUS In these instances you must supply DIN rail mounted style terminal blocks one for A side and one for B side The terminal blocks are needed to transition between a W2072 unprepared cable end and another cable segment that has a prepared end that is usually obtained by cutting a standard IOBUS extension cable in half and preparing the cut end To modify an ...

Страница 28: ...le conductors wires to the screw terminals as shown in Figure 2 13 Tighten screw terminals by applying 78 in oz 0 55 Nm of torque Wire stripping and color code information for making connections are provided in Table 2 1 and Figure 2 11 respectfully 3 At the appropriate IOBUS IN screw terminals on the second Remote I O Rack s backplane Figure 2 4 provide strain relief for the W2072 cable end by se...

Страница 29: ...SD39RIO 1 INSTALLATION January 2001 2 17 Figure 2 11 W2072 Cable End Preparation ...

Страница 30: ...INSTALLATION SD39RIO 1 January 2001 2 18 Figure 2 12 Terminal Block to Rack W2072 Cabling up to 300 ft 91 m for Redundant or Non Redundant Systems ...

Страница 31: ...SD39RIO 1 INSTALLATION January 2001 2 19 Figure 2 13 Rack to Rack W2072 Cabling up to 300 ft 91 m for Redundant or Non Redundant Systems ...

Страница 32: ...cable s A prepared cable end has a molded connector on it and is to be plugged into the appropriate IOBUS IN or IOBUS OUT connector on the rack s backplane see Figure 2 4 The wires emerging from an unprepared cable end are to be individually stripped and connected directly to the screw terminals of the associated IOBUS IN or IOBUS OUT terminal block also located on the rack s backplane see Figure ...

Страница 33: ...ach W2040 cable end as needed for identification To connect a W2040 IOBUS cable between two Remote I O Racks 1 Determine the length of W2040 cable needed to connect from the first Remote I O Rack to the second Remote I O Rack Allow slack for cable stripping dressing tagging and strain relief at each end 2 At the appropriate IOBUS OUT screw terminals on the first Remote I O Rack s backplane Figure ...

Страница 34: ...INSTALLATION SD39RIO 1 January 2001 2 22 Figure 2 14 W2040 Cable End Preparation ...

Страница 35: ...SD39RIO 1 INSTALLATION January 2001 2 23 Figure 2 15 Terminal Block to Rack W2040 Cabling up to 1500 ft 460 m for Non Redundant APACS Systems ...

Страница 36: ...INSTALLATION SD39RIO 1 January 2001 2 24 Figure 2 16 Rack to Rack W2040 Cabling up to 1500 ft 460 m for Non Redundant APACS Systems ...

Страница 37: ...equires a prepared cable end with a connector to attach that rack to the IOBUS In these instances you must supply DIN rail mounted style terminal blocks one for A side and one for B side The terminal blocks are needed to transition between W2040 and Belden 8627 unprepared cable ends and another cable segments that has a prepared end usually obtained by cutting a standard IOBUS cable in half Each t...

Страница 38: ...rom the first Remote I O Rack to the second Remote I O Rack Allow slack for cable stripping dressing tagging and strain relief at each end 2 At the appropriate IOBUS OUT screw terminals on the first Remote I O Rack s backplane Figure 2 4 provide strain relief for the W2040 and 8627 cable ends by securing them to the rack s tie points Figure 2 5 Connect the W2040 and 8627 cable conductors wires to ...

Страница 39: ...SD39RIO 1 INSTALLATION January 2001 2 27 Figure 2 17 Belden 8627 Cable End Preparation ...

Страница 40: ...INSTALLATION SD39RIO 1 January 2001 2 28 Figure 2 18 Terminal Block to Rack W2040 8627 Cabling up to 1500 ft 460 m for Node to Node Redundant APACS and All QUADLOG Systems ...

Страница 41: ...SD39RIO 1 INSTALLATION January 2001 2 29 Figure 2 19 Rack to Rack W2040 8627 IOBUS Cabling up to 1500 ft 460 m for Node to Node Redundant APACS and All QUADLOG Systems ...

Страница 42: ...hen the IOBUS must transition between a user supplied terminal block and the IOBUS IN or IOBUS OUT connection point on a rack s backplane that requires a factory prepared cable end with a molded connector To modify an IOBUS A or B Cable 1 Cut the Cable in half 2 Prepare the cable ends as shown in Figure 2 20 Figure 2 20 Modifying an IOBUS Cable ...

Страница 43: ... as shown in Figures 2 4 2 9 and 2 21 If the shunt is oriented so I O BUS CONTINUE is positioned on top the IOBUS will be continued from the Remote I O Rack s backplane to another rack If the shunt is oriented so I O BUS TERMINATE is positioned on top the IOBUS is terminated at the right side of the Remote I O Rack The shunt terminates the IOBUS in its characteristic impedance 2 5 7 IOBUS Attenuat...

Страница 44: ...along the IOBUS towards the control module From that point continue progressing along the IOBUS until a rack is encountered 3 Remove the shunt from the W4 socket Remote I O Rack or W10 socket MODULRAC or SIXRAC on the rack s backplane and replace it with a properly oriented attenuator 4 Repeat steps 2 and 3 as long as there is another 30 meter or longer segment of the IOBUS remaining towards the c...

Страница 45: ...rs a module as a serial input OKIN and exits as a serial output OKOUT from the same module The OKOUT from a lower slot module becomes the OKIN to the next higher module in the chain and so on Backplane jumpers W1 to W3 Figures 2 23 and 2 24 connect the OKOUT signals from module slot connectors to IOBUS MOK Module OK signals The Loop continues through socket W4 IOBUS shunt when the shunt is oriente...

Страница 46: ...uires that each rack be assigned a unique rack address The Rack Address thumbwheel switch SW1 located on the upper right side of the Remote I O Rack s backplane Figure 2 25 is used to assign an address 1 to 16 to the rack The address is used for software identification of I O modules during system operation The Rack Address switch is to be set in conjunction with the Slot Address switch described ...

Страница 47: ...re 2 25 Rack Address and Slot Address Switches 2 7 Slot Address Switch Setting The Slot Address switch SW2 located on the upper right side of the Remote I O Rack s backplane Figure 2 25 is a slide switch used to set whether the Remote I O Rack is to occupy lower slot addresses 1 to 4 for standalone use or upper slot addresses 7 to 10 when used as an extension to another rack such as a SIXRAC This ...

Страница 48: ...lide switch 2 Consult system drawings to identify the slot address range 1 4 or 7 10 of the Remote I O Rack 3 Set SW2 to the 1 4 or 7 10 default slot address position as needed 2 8 Recirculating Fan Power Cable Connection The Remote I O Rack has two built in 24 Vdc recirculating fans located under the module housing area of its chassis A bottom view of the chassis is shown in Figure 2 26 A fan pow...

Страница 49: ...ed cable from either an externally mounted power supply such as a Siemens Moore POWERAC or a user supplied power supply The power bus connectors are located on the left side of the Remote I O Rack s backplane and are identified as P1 24V A P2 24V B and P3 24V C as shown in Figure 2 4 Power bus connector pinouts are shown in Figure 2 27 A power supply cable P N 16137 60 compatible with the Remote I...

Страница 50: ...e power from all involved wires and terminals before making connections If using the Siemens Moore Power Supply Rack POWERAC refer to its Installation and Service Instruction SD39PSR 1 for connection details Figure 2 27 Pinout of Power Bus Connector Figure 2 28 Power Supply Cable ...

Страница 51: ...s Stripped ends of stranded or solid wires must not be soldered or tinned in preparation for use with DIN rail terminal blocks Solder is a malleable material and can loosen causing open connections Also corrosion to the terminal block can result from the pickling agents or flux used with solder Torque Specifications Use the following torque specifications when tightening connections in DIN rail te...

Страница 52: ...e extends from a module slot position in the Remote I O Rack to a companion marshalled termination assembly that provides I O field terminals The Remote I O Rack can accommodate up to four cable assemblies Installation of these cable assemblies as shown in Figure 2 30 is commonly performed at the time of rack installation prior to module installation Figure 2 30 Installing Module End of I O Interc...

Страница 53: ...ng is highly recommended since it enhances system safety and aids in preventing equipment damage Generally modules are keyed at the factory The keying pattern is unique to each module type e g Standard Analog Module Critical Analog Module Each Remote I O Rack involved in the factory staging of a system is keyed at the factory The installer must key racks not keyed at the factory Each slot must be ...

Страница 54: ...INSTALLATION SD39RIO 1 January 2001 2 42 Figure 2 31 Rack and I O Module Keying ...

Страница 55: ...n associated hardware The fans should also be carefully cleaned Cleaning of I O modules and associated hardware is discussed in module documentation 3 3 Parts Replacement Refer to Figures 1 1 2 3 and 2 26 for major parts identification When servicing a Remote I O Rack the removal of installed I O modules and their associated hardware is sometimes necessary refer to the module documentation for mod...

Страница 56: ...he return If returning equipment for repair failure information e g error code failure symptom installation environment will be requested Supply a purchase order number for non warranty repairs Material Safety Data Sheet A Material Safety Data Sheet MSDS must be included with each item being returned that was stored or used anywhere hazardous materials were present Packaging Package the Remote I O...

Страница 57: ...ignal The IOBUS uses a differential line transceiver system where transceivers located in I O modules are connected to these buses Additionally the IOBUS is isolated by 1 1 isolation transformers located in each module that connects to IOBUS 4 2 IOBUS Signals Redundancy signals are functional in a node to node rack to rack redundant system These signals are constantly monitored the control module ...

Страница 58: ...signal is jumpered to the MOK line by an IOBUS Shunt in the I O Bus Terminate position or by an installed OK Loop jumper The control module reads the state of MOK to determine if any of the modules on IOBUS are not OK MOK Master OK or Module OK This redundancy signal return line gives the result of the OK continuity string The line is bused across the backplane and continues through the IOBUS Shun...

Страница 59: ...ption 16056 384 Remote I O Rack Keying Kit A bag containing 24 stop plugs to mechanically interface I O modules to the Remote I O Rack Kit comes attached to the rack 14784 9 single piece Jumpers W1 to W3 OK Loop Factory installed in the backplane assembly 16066 21 single piece IOBUS Shunt Module Assembly W4 Factory installed in the backplane 16405 1 single piece IOBUS Attenuator Module Assembly In...

Страница 60: ...le Unterminated Belden type 9843 redundant non redundant systems 16137 122 Interconnect I O Cable Assembly 5 7 ft 1 75 m 16137 114 Interconnect I O Cable Assembly 10 ft 3 m 16137 115 Interconnect I O Cable Assembly 26 2 ft 8 m 16137 116 Interconnect I O Cable Assembly 49 2 ft 15 m 16137 117 Interconnect I O Cable Assembly 98 4 ft 30 m 16137 118 Unterminated Interconnect I O Cable Assembly 10 ft 3 ...

Страница 61: ... Specification Value Module Capacity Four APACS or QUADLOG I O Modules Rack Dimensions Refer to Figure 2 2 Rack Weight w o modules 8 14 lbs 3 69 kg 6 2 Environmental Specifications Table 6 2 lists the environmental specifications for the Remote I O Rack Table 6 2 Remote I O Rack Environmental Specifications Category Specification Value Temperature Operating Temperature 25 C to 70 C 13 F to 158 F H...

Страница 62: ...ndant APACS System 1500 ft 460 m maximum Extendable with fiberoptics Data Transmission Rate 1 Mbps Media Specification IEEE RS 485 Media Access Master to Slave IOBUS Architecture IOBUS Capacity 1 control module plus up to 39 I O modules Rack Address Address Number 1 to 16 Set by Thumbwheel Switch SW1 Slot Address Slot Range 1 4 standalone or 7 10 extension rack Set by Slot Address Switch SW2 Air D...

Страница 63: ... CSA C22 2 No 213 M1987 Non Incendive Electrical Equipment for use in Class I Div 2 Hazardous Locations CSA C22 2 No 142 M1987 Process and Control Equipment for Non Hazardous Locations FM FM Class 3611 Electrical Equipment for use in Class I Div 2 Class II Div 2 and Class III Div 1 and 2 Hazardous Locations FM FM Class 3810 Safety Standards for Electrical and Electronic Test Measuring and Process ...

Страница 64: ...SPECIFICATIONS SD39RIO 1 January 2001 6 4 ...

Страница 65: ...pressly in lieu of all other warranties guaranties obligations or liabilities expressed or implied by the Company or its representatives All statutory or implied warranties other than title are hereby expressly negated and excluded Warranty repair or replacement requires the equipment to be returned to one of the following addresses Equipment manufactured or sold by Siemens Moore Process Automatio...

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