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Spectrum 1762sc-OF8, User Manual

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Spectrum 1762sc-OF8 User Manual Download Page 10

1-4 

Chapter 1: Module Overview 

 

 

User’s Manual Pub. 0300246-01 Rev. C 

1.5.2

 

Module Operation 

When the module receives a new command value from the output image, the 
module’s circuitry converts the digital value to an analog current/voltage signal 
using a DAC (Digital to Analog Converter).  See the block diagram below. 

 

 

Summary of Contents for 1762sc-OF8

Page 1: ......

Page 2: ...ervice referenced herein No patent liability is assumed by Spectrum Controls Inc with respect to the use of any of the information products circuits programming or services referenced herein The information in this owner s guide is subject to change without notice Limited Warranty Spectrum Controls warrants that its products are free from defects in material and workmanship under normal use and se...

Page 3: ...2 3 4 Selecting a Location 2 3 2 3 5 Reducing Noise 2 3 SECTION 2 4 MOUNTING 2 4 2 4 1 Minimum Spacing 2 4 2 4 1 DIN Rail Mounting 2 4 2 4 2 Panel Mounting 2 5 SECTION 2 5 SYSTEM ASSEMBLY 2 6 SECTION 2 6 FIELD WIRING CONNECTIONS 2 6 2 6 1 Wiring Diagram 2 8 2 6 2 Wiring the Finger Safe Terminal Block 2 8 2 6 3 Terminal Door Label 2 9 SECTION 2 7 MODULE INDICATORS 2 10 CHAPTER 3 CONFIGURING THE 176...

Page 4: ...ll configure program operate and troubleshoot a control system using the 1762sc OF8 Related Documentation The table below provides a listing of publications that contain important information about Allen Bradley PLC systems Document Title Document Number MicroLogix 1200 User Manual 1762 UM001 MicroLogix 1200 Technical Data 1762 TD001 MicroLogix 1200 and MicroLogix 1500 Programmable Controllers Ins...

Page 5: ... Bold type identifies headings and sub headings WARNING Identifies information about practices or circumstances that can lead to personal injury or death property damage or economic loss These messages help you to identify a hazard avoid a hazard and recognize the consequences ATTENTION Actions ou situations risquant d entraîner des blessures pouvant être mortelles des dégâts matériels ou des pert...

Page 6: ...vi MicroLogix 1200 8 Ch Output Module User s Manual Pub 0300246 01 Rev C ...

Page 7: ...supports current and voltage type outputs The module converts the digital value stored in each channel s output command word to an analog current or voltage signal Each output channel is individually configured via software for a specific output type data format and provides open circuit or short circuit detection and indication Section 1 2 Input Types and Ranges The tables below list the output t...

Page 8: ...rogramming software The module configuration is stored in the memory of the controller Refer to your controller s user manual for more information The illustration below shows the module s hardware features Item Description 1a Upper panel mounting tab 1b Lower panel mounting tab 2 Power diagnostic LED 3 Module door with terminal identification label 4 Bus connector male 5 Bus connector cover 6 Fla...

Page 9: ...f no faults are found during power up diagnostics the module status LED blinks rapidly waiting for command mode After power up checks are complete the module waits for command mode and then valid channel configuration data If an invalid configuration is detected the module generates a configuration error and remains in command mode Once the module is properly configured and enabled it continuously...

Page 10: ...46 01 Rev C 1 5 2 Module Operation When the module receives a new command value from the output image the module s circuitry converts the digital value to an analog current voltage signal using a DAC Digital to Analog Converter See the block diagram below ...

Page 11: ... EMC and the following standards in whole or in part documented in a technical construction file IEC 61000 6 4 Electromagnetic compatibility EMC Part 6 4 Generic standards Emission standard for industrial environments IEC 61000 6 2 Electromagnetic compatibility EMC Part 6 2 Generic standards Immunity for industrial environments This product is intended for use in an industrial environment Section ...

Page 12: ...of components may impair suitability for Class I Division 2 Touch a grounded object to discharge static potential Do not replace components or disconnect equipment unless power has been switched off or the area is known to be non hazardous Touch a grounded object to discharge static potential This product must be installed in an enclosure Touch a grounded object to discharge static potential All w...

Page 13: ...an erroneous signal to your system s field devices causing unintended machine motion Causing an explosion in a hazardous environment Electric arcing causes excessive wear to contacts on both the module and its mating connector and may lead to premature failure 2 3 4 Selecting a Location 2 3 5 Reducing Noise Most applications require installation in an industrial enclosure to reduce the effects of ...

Page 14: ...w 50 8 mm 2 in of space on all sides for adequate ventilation as shown Figure 2 1 NOTE 1762 expansion I O may only be mounted horizontally WARNING During panel or DIN rail mounting of all devices be sure that all debris metal chips wire strands etc is kept from falling into the module Debris that falls into the module could cause damage when power is applied to the module 2 4 1 DIN Rail Mounting T...

Page 15: ...ith extreme vibration and shock concerns use the panel mounting method described below instead of DIN rail mounting 2 4 2 Panel Mounting Use the dimensional template shown below to mount the module The preferred mounting method is to use two M4 or 8 Pan Head screws per module M3 5 or 6 Pan Head screws may also be used but a washer may be needed to ensure a good ground contact Mounting screws are r...

Page 16: ...e snapped in place In Class I Division 2 applications all modules must be mounted in direct contact with each other as shown in the graphic If DIN rail mounting is used an end stop must be installed ahead of the controller and after the last 1762 I O module Section 2 6 Field Wiring Connections Consider the following when wiring your system General Power and output wiring must be in accordance with...

Page 17: ...face cannot be grounded Under normal conditions the drain wire shield should be connected to the metal mounting panel earth ground Keep shield connection to earth ground as short as possible Ground the shield drain wire at one end only The typical location is at the module end If it is necessary to connect the shield drain wire at the module end connect it to earth ground using a panel or DIN rail...

Page 18: ...ng connections WARNING All return terminals are electrically tied together but each output should use its own associated return terminal for best accuracy 2 6 2 Wiring the Finger Safe Terminal Block Figure 2 6 OUT 0 Shield OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7 RTN 0 RTN 1 RTN 2 RTN 3 RTN 4 RTN 5 RTN 7 NC NC RTN 6 OUT 1 Load Figure 2 5 Wiring Diagram ...

Page 19: ...u can use the stripped end of the wire or a spade lug The terminals will accept a 6 35 mm 0 25 in spade lug See Figure 2 6 3 Tighten the terminal screw making sure the pressure plate secures the wire Recommended torque when tightening terminal screws is 0 904 Nm 8 in lbs 4 After wiring is complete remove the debris shield 2 6 3 Terminal Door Label A removable write on label is provided with the mo...

Page 20: ...is not properly configured or if the PLC is not in run mode the LED will blink rapidly The following blink codes are the only exception Table 2 2 LED Blink Codes Blink Code Description Rapid Blink5 PLC not in run mode or no valid module configuration present Solid Module is in run mode Normal Operation 3 Factory calibration in progress 4 Factory calibration invalid 5 Module is in command mode 5 Al...

Page 21: ...ou Should Know This chapter describes how to configure the OF8 module for the MicroLogix 1100 1200 and 1400 system using RSLogix 500 programming software Section 3 2 Module Memory Map The module uses 8 input words and 8 output words for input data and configuration The following figure describes the data mapping for the module Input Image I 0 to I 7 8 words Input Data Output Image O 0 to O 7 8 wor...

Page 22: ...e describes how to add the OF8 module to the RSLogix 500 programming software 1 Create a new RSLogix 500 project and select either a Micro 1100 1200 or 1400 processor 2 Double click I O Configuration from the project tree 3 Select the first empty slot and then double click the Other Requires I O Card Type ID option from the I O configuration screen ...

Page 23: ...t steps 1 through 4 for additional modules Section 3 4 Module Configuration The OF8 module is configured using a process that employs the input and output files The following flow chart describes the configuration process Transition To Run Unlock Command Issued Write Configuration Data Issue Load Configuration Command Issue Exit Command 600 ms Delay Module Enters Run Mode ...

Page 24: ... OF8 as well as control the output signal of each channel Use the addressing scheme below to locate the 8 output words needed to configure the module Figure 3 2 Output Addressing Scheme 1 I O located on the controller embedded I O is slot 0 I O added to the controller expansion I O begins with slot 1 The module enters a special mode called Command Mode when the PLC transitions from Program mode to...

Page 25: ...ero response will be placed in the Response Code see Input Data File table Keep in mind the module is constantly polling the output file as it is updated by the controller The module will validate each command using the following three step process 1 Validate Fixed Words 1 3 These words must always be valid during Command Mode An error will be posted in the Response Code until these are correct Co...

Page 26: ... null command to do that The response is always 0 No other action is taken with this command Load Config 0 FFF1 Data Words 1 4 must contain valid channel configuration data for all channels See Data Words table below Configuration will be validated An error will be posted for the first invalid channel configuration found If the configuration is invalid the configuration info in the Data Words may ...

Page 27: ...Condition Raw Prop EU PID FS 4 20 mA 20 40 mA High Limit 32767 20400 16793 10250 20 00 mA High Range 31176 20000 16383 10000 4 00 mA Low Range 32450 4000 0 0 3 92 mA Low Limit 32768 3920 82 50 0 20 mA 20 40 mA High Limit 32767 20400 16711 10200 20 00 mA High Range 31482 20000 16383 10000 0 00 mA Low Limit Range 32768 0 0 0 10 V 11 00 VDC High Limit 32767 11000 17202 11000 10 00 VDC High Range 2978...

Page 28: ...e In normal run mode output words 0 through 7 control the analog output signal for channels 0 through 7 respectively See Table 3 1 above Section 3 5 Module Status Input data for the OF8 consists of status information channel configuration information and module configuration status 3 5 1 Input Data File Command Mode In command mode the input data file returns module configuration status used durin...

Page 29: ... in command mode Table 3 6 Input Words Command Mode Word Description Command Echo Word 0 Matches Command Word 0 that is O e 0 When this word matches the Command Word it indicates the command is complete The Response Code is now valid Response Code Word 1 Non zero is an error see Response Codes This is valid only when Command Echo matches Command Word Response Channel Word 2 If Response Code error ...

Page 30: ...ected is displayed No Config 0 F005 An attempt was made to exit Command Mode before a configuration was loaded Either load the default config or manually enter a configuration for all channels Invalid Cal 0 F006 Calibration is invalid Module requires factory calibration before it can be configured NOTE Response codes are not to be considered valid until the Command Echo matches the issued command ...

Page 31: ...1 indicates the output word value set by the user is below the defined Low Range value see Output Data Format table The channel will output voltage or current depending on the range type to the Low Limit value O x Over range flag When set to 1 indicates the output word value set by the user is above the defined High Range value see Output Data Format table The channel will output voltage or curren...

Page 32: ...WARNING Use the Command bit B3 0 0 in the following ladder sample as a condition before any instruction that writes data to one of the 8 module output words Failure to do so can result in the module rejecting the configuration and not going into run mode i e a rapid blinking module status LED ...

Page 33: ...Chapter 3 Configuring the 1762sc OF8 for RSLogix 500 3 13 User s Manual Pub 0300246 01 Rev C ...

Page 34: ... module should need to be returned to Spectrum Controls Inc please ensure that the unit is enclosed in approved ESD packaging such as static shielding metalized bag or black conductive container Spectrum Controls Inc reserves the right to void the warranty on any unit that is improperly packaged for shipment RMA Return Merchandise Authorization form required for all product returns For further inf...

Page 35: ...ers 6561 feet Vibration Operating 10 to 500 Hz 5 G 0 030 in max peak to peak Shock Operating 30 G Bus Current Draw max 30 mA at 5 VDC Max 250 at 18 7 V 195 mA at 24 V Heat Dissipation 4 9 W Total Max Maximum number of modules on the bus Distance rating of 6 Maximum number of modules by controller type Controller Max 5 V Bus Current Max 24 V Bus Current Max of Modules ML1100 800 700 3 ML1200 24 pt ...

Page 36: ...tives Hazardous Environment Class Class I Division 2 Hazardous Location Groups A B C D ISA 12 12 01 C UL under CSA C22 2 No 213 Operating Temperature Code T6 Radiated and Conducted Emissions EN61131 2 Electrical EMC The module has passed testing at the following levels ESD Immunity IEC61000 4 2 4 kV contact 8 kV air 4 kV indirect Radiated Immunity IEC61000 4 3 10 V m 80 to 1000 MHz 80 amplitude mo...

Page 37: ...ges Current Output 380 nA per bit when using RAW format for all current ranges Differential Nonlinearity 1 LSB Output Ripple 15 mV ripple for voltage or current Output Impedance Current 1 Mohm Voltage 1 ohm Output Load Current 0 ohm min 500 ohm max Voltage 1 kohm at 10 V output 10 mA includes wire resistance Maximum Output Inductive and Capacitive Load 0 1 mH 1 µF Output Settling Time 1ms to 63 of...

Page 38: ...A 4 Appendix A Specifications User s Manual Pub 0300246 01 Rev C ...

Page 39: ...t 1 2 Door Label 2 9 E EMC Directive 2 1 G Grounding 2 7 H Hazardous Location 2 2 I Input Data 3 8 L LED 1 3 2 10 M Memory Map 3 1 Mounting DIN 2 4 Panel 2 5 N Noise 2 3 2 7 O Output Type 1 1 P Power Requirements 2 1 power up 1 3 S Slot number 3 4 Slot Number 3 8 Spacing Minimum 2 4 T Technical support contact information iv W Wiring Diagram 2 8 ...

Page 40: ...User s Manual Pub 0300246 01 Rev C ...

Page 41: ...User s Manual Pub 0300246 01 Rev C ...

Page 42: ...cations subject to change without notice The Encompass logo and ControlLogix are trademarks of Rockwell Automation Corporate Headquarters Spectrum Controls Inc P O Box 6489 Bellevue WA 98006 USA Fax 425 641 9473 Tel 425 746 9481 Web Site www spectrumcontrols com E mail spectrum spectrumcontrols com ...

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