1771sc-IFE32 Installation
Contents
1. 6 9481 P O Box 5533 Fax 425 641 9473 Bellevue WA 98006 Web Site www spectrumcontrols com Replacing a 1771 IFE with a Spectrum 1771sc IFE32 Page 6 of 6 If only the module data is to be read the data will be presented in the data registers as follows Table 4 Module Data Only Word Bit _15 14 13 12 11 10 9 8 7 a 2 1 0 Description o T1 T J c Hef ee es RT is OR PU Diagnostics 6 CH32 CH34 CH30 CH29 CH28 CH27 CH26 CH25 CH24 CH23 CH22 CH21 CH20 CH19 CH18 CH17 Over Range 8 CH32 CH31 CH30 CH29 CH28 CH27 CH26 CH25 CH24 CH23 CH22 CH21 CH20 CH19 CH18 CH17 Sign Channel 1 Data If both the configuration echo and module data is to be read then the data will be presented as shown in Table 5 Table 5 Module Data Configuration Echo Re RA Oa E EE o J J J J f f CEJHF EEJCSs RT IS OR PU CH3 CH2 CH1 6 CH32 CH31 CH30 CH29 CH28 CH27 CH26 CH25 CH24 CH23 CH22 CH21 CH20 CH19 CH18 CH17 8 CH32 CH31 CH30 CH29 CH28 CH27 CH26 CH25 CH24 CH23 CH22 CH21 cH20 CH19 CH18 CH17 Sanne Data Channel 14 Channel 18 Channel 22 Channel 26 Channel 30 Channel 2 Channel 6 Channel 10 Channel 14 Channel 18 54 Channel 22 55 Channel 26 56 Channel 30 Description Diagnostics Channel Fault Channel Fault Under Range Under Range Over Range Over Range Sign Sign Data Data Data Type Ra2. Sa SPECTRUM Replacing a 1771 IFE With a ME Spectrum 1771sc IFE32 This technical note is intended as a simple guide for customers who would like to use Spectrum Controls new 32 channel analog input module as a replacement for an existing Allen Bradley 1771 IFE 16 channel analog input module Itis assumed that the user is familiar with RSLOGIXS and PLCS software and hardware The 1771sc IFE32 User Manual is intended to be used as a reference and will be referred to in this document Installation Power down the rack and replace the Allen Bradley 1771 IFE module with the Spectrum 1771sc IFE32 module Take note of the rack and slot number when replacing the IFE module This information will be used to configure the BTW Block Transfer Write instructions for the IFE32 module later in this document Follow the wiring guidelines outlined in the Spectrum 1771sc IFE32 User Manual when terminating field wiring See examples below Fig I Single Ended Current Inputs Fig 2 Differential Current Inputs R 250 Ohms H Li E ry Ah Z 12 rae Se Fy HA tate al raa ee me ala aie E ael ra aa KAS ake mele al av coe SS F Please add 250 ohm shunt CH16 resistors when using current CHI inputs in differential mode NC ss SIE Configuration The IFE32 can be easily configured using generic block transfers The module supports the standard PLCS rack addressing scheme The figure below d
3. isplays a typical rack configuration Fig 3 170 Configuration Chassis Table M Show Non l O Rows MAME 0 Channel Chassis Type Adapter Ini Res nee cartier Rack Group Spar Complementary 1771 416 4 slots PLO 5 30 O LJ 1 Slot 0 00 03 O lt DF1 gt fs DH gt 1B lt 1 0 Scanner Notel The RSLOGLX 5 I O auto configuration feature does not presently support the IFE32 Note2 There are no jumper settings required to configure the IFE32 module Spectrum Controls Inc Phone 425 746 9481 2700 Richards Rd Suite 200 Fax 425 641 9473 Bellevue WA 98006 Web Site www spectrumcontrols com Replacing a 1771 IFE with a Spectrum 1771sc IFE32 Page 2 of 6 The IFE32 is configured using one BTW Block Transfer Write instruction 23 words in length If the user defined scaling is to be used another BTW instruction is required The second BTW instruction will be 64 words in length See ladder sample below Note3 Rung number 2 shown in figure 4 below is only required if user defined scaling is to be utilized Fig 4 agil agia The rack and group values for the IFE32 module must be entered into each BTW and BTR instruction See Figure 4 above Spectrum Controls Inc Phone 425 746 9481 P O Box 5533 Fax 425 641 9473 Bellevue WA 98006 Web Site www spectrumcontrols com Replacing a 1771 IFE with a Spectrum 1771sc IFE32 Page 3 of 6 The BTW instruction 23 words in length is used to config
4. ith a Spectrum 1771sc IFE32 Page 4 of 6 Table 2 below shows how to configure the IFE32 for 4 to 20mA in Differential mode Table 2 Differential Mode Word Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 11 0 Description poo B B B J B TypeRange O B J B J B J B TypeRange O B J B J B J B Type Range_ Single A r Ended Differential Limits Hex 8 10to ov 30 B B B B Type Range B B B B _Type Range 6e B5 B B B TypeRange 7 B5 B B B Type Range ET E a te 3 3 3 DataFoma re 3 3 3 Data Format wo 3 3 3 3 DataFoma a 3 3 3 3 DataFoma 42 3 3 3 3 DataFoma 3 3 3 DataFoma tinsianee 18 RE 01 209 6 Hz 1667 Hz 20 4 Auto Calibrate Once Every 30 Minutes 21 1 Debug Flags Hex Wenge Value gt m BTR Data Only BTR and Configuration Data Decimal s Note4 Within a channel pair both channels must be specified as single acquisition or both as differential acquisition Also within a group of 8 consecutive channels all 8 channels must be from either 8 voltage or current sources Note5 Please note that in Table 2 the 1 to 5 V input type selection was made Current modes are not applicable for differential mode In order to use current inputs in differential mode a 250Q shunt resistor must be added see Figure 2 and the module must be configured for 1 to 5 V or 0 to 5 V S
5. nge Type Range Type Range Type Range Type Range Type Range Type Range Type Range Data Format Data Format Data Format Data Format Data Format Data Format Data Format Data Format Ch4 58 Chi2 59 Autocal Summary The 1771sc IFE32 is a high density module capable of replacing two Allen Bradley 1771 IFE modules The IFE32 offers 16 bit resolution easy installation and configuration without the need of circuit jumpers With possible update times of as little as 2 1ms per channel and 16 bit resolution the IFE32 is an ideal solution for jobs requiring large quantities of analog inputs Spectrum Controls Inc P O Box 5533 Bellevue WA 98006 Phone 425 746 9481 Fax 425 641 9473 Web Site www spectrumcontrols com
6. pectrum Controls Inc Phone 425 746 9481 P O Box 5533 Fax 425 641 9473 Bellevue WA 98006 Web Site www spectrumcontrols com Replacing a 1771 IFE with a Spectrum 1771sc IFE32 Page 5 of 6 Table 3 User Defined Scaling Single Ended Mode Value Entered in Decimal A second BTW instruction is required if one wishes to use o o Ch0ScaledmMmin the module s user defined scaling option The second BTW 1 100 Ch 1 Scaled Max instruction must be 64 words in length Please refer to 2 O Ch2ScaledMin __ Figure 4 for ladder sample Table 3 shows the layout for the user defined scaling when the module is configured for pero nee ode p58 O0 CH29 Scaled Min 60 O Ch30 Scaled Min 62 O Ch31 Scaled Min Note6 If differential mode is used every other channel group is skipped For example when channel 1 is used in differential mode Scale word 0 Min Scale and Word I Max Scale are used Word 2 and Word 3 are skipped Word 4 and Word 5 are Min and Max Scale words for channel 2 etc Note7 To disable the user defined scaling for an individual channel the scaled min and max must be set to 0 Module Status amp Input Data Depending on the value stored in word 21 of the configuration block see Tables I and 2 the BTR Block Transfer Read instruction will be either 41 or 64 words in length The figure below shows the BTR instruction for the latter case ooo Spectrum Controls Inc Phone 425 74
7. ure the type range data format filter frequency etc for each channel For a definition of each item listed in the description column on the following two tables please refer to the 1771sc IFE32 User Manual Table 1 below shows how to configure the IFE32 for 4 to 20mA in single ended mode Table 1 Single Ended Mode Word Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 71 0 Description Pp oo f 6 6 6 Type Range Single 1 F Ended Differential Limits Hex Hex Be 9 a f e e f e 6 TypoRamge o f e e ype ange s 6e 6e 6e 6 ype ange a f e 6e 6e 6 TypoRme s 6e ype ange s 6e 6 6e 6 ype ange 7 6e 6e 6 ypeange o 3 atta Format _ p10 3 3 J 3 3 atta Format _ 3 3 J 3 DataFormat __ 3 3 DataFormat OB J 3 3 J 3 3 ata Format _ Data Format O Signed16 Bit _ Binary 3dB Frequency 00 13 65Hz E Once Every 30 Minutes o 21 1 Debug Flags Value gt BTR Data Onl BTR and Configuration Data p 7 10 dok Note4 Within a channel pair both channels must be specified as single acquisition or both as differential acquisition Also within a group of 8 consecutive channels all 8 channels must be from either 8 voltage or 8 current sources 15 Spectrum Controls Inc Phone 425 746 9481 P O Box 5533 Fax 425 641 9473 Bellevue WA 98006 Web Site www spectrumcontrols com Replacing a 1771 IFE w
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