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Emerson Rosemount 752 FOUNDATION Reference Manual Download Page 32

26

Reference Manual

00809-0100-4377, Rev CA

Troubleshooting

January 2018

Troubleshooting

4.3

Troubleshooting guides

Figure 4-1. Rosemount 752 Troubleshooting Flowchart

PROBLEMS WITH COMMUNICATIONS

Device does not appear 

on segment.

1. Check wiring to device. 
2. Recycle power to device.
3. Electronic failure.
Refer to 

Device does not show up on 

segment 

 in 

Table 4-1

 for more information.

Problem Identified?

Yes

No

Perform Recommended 
Action, see 

Table 4-1

.

Check Segment, see 

Device does not 

stay on segment 

 in 

Table 4-1

 for 

more information.

Problem Identified?

Yes

No

Perform Recommended 
Action, see 

page 13

.

If the problem persists 
contact your local Rosemount 
representative.

Device does not 

stay on segment.

Summary of Contents for Rosemount 752 FOUNDATION

Page 1: ...Reference Manual 00809 0100 4377 Rev CA January 2018 Rosemount 752 Remote Indicator with FOUNDATION Fieldbus protocol ...

Page 2: ......

Page 3: ...information 8 2 7 Foundation Fieldbus function blocks 11 2 8 Resource block 12 2 9 LCD transducer block 19 3Section 3 Operation and Maintenance 3 1 Overview 23 3 2 Safety messages 23 3 3 Resource block 24 3 4 Software upgrade in the field 24 3 5 Service support 24 4Section 4 Troubleshooting 4 1 Overview 25 4 2 Safety messages 25 4 3 Troubleshooting guides 26 4 4 Resource block 29 4 5 LCD transduce...

Page 4: ...iv Reference Manual 00809 0100 4377 Rev CA Contents January 2018 Contents B 1 Block configuration33 B 2 LCD transducer block39 ...

Page 5: ...ntative Explosions can result in death or serious injury Do not remove the indicator covers in explosive environments when the circuit is live Indicator covers must be fully engaged to meet explosion proof requirements Before connecting a configuration tool in an explosive atmosphere make sure the instruments in the loop are installed in accordance with intrinsically safe or nonincendive field wir...

Page 6: ...6 Reference Manual 00809 0100 4377 Rev CA Title Page January 2018 Title Page ...

Page 7: ...tenance contains operation and maintenance techniques Section 4 Troubleshooting provides troubleshooting techniques for the most common operating problems Section A Reference Data supplies procedure on how to get the specifications ordering information and product certification Section B Block Information supplies reference block information such as parameter tables 1 2 Device description efore co...

Page 8: ...2 Reference Manual 00809 0100 4377 Rev CA Introduction January 2018 Introduction ...

Page 9: ...erence Manual 2 2 Safety messages Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operations Information that raises potential safety issues is indicated by a warning symbol Refer to the following safety messages before performing an operation preceded by this symbol Explosions can result in death or serious injury Do...

Page 10: ...Do not remove the indicator covers in explosive atmospheres when the circuit is live 3 Slide the security and simulate switches into the preferred position by using a small screwdriver Re install the indicator cover Indicator covers must be fully engaged to meet explosion proof requirements Figure 2 1 Plantweb Housing Switches A Security B Alarm simulate 2 3 2 Connect wiring and power up Wiring fo...

Page 11: ...ON Fieldbus Power supply The indicator requires between 9 and 32 V dc 9 and 15 V dc for FISCO to operate and provide complete functionality The dc power supply should provide power with less than 2 ripple Power conditioner A fieldbus segment requires a power conditioner to isolate the power supply filter and decouple the segment from other segments attached to the same power supply Grounding Signa...

Page 12: ...the indicator Optional transient protection terminal block The transient protection terminal block can be ordered as an installed option Option code T1 in the indicator model number or as a spare part The spare part number is 03151 4134 0002 The lightning bolt symbol shown identifies it as a transient protection terminal block Note The fieldbus physical layer specification requires indicator commu...

Page 13: ...m portion This should be done for each device on the segment The bottom portion of the tags can be used for commissioning the segment in the control system providing a direct link between the Device ID and the tag location 2 5 Hazardous locations The Rosemount 752 Remote Indicator has explosion proof housing and circuitry suitable for intrinsically safe and non incendive operation Individual indic...

Page 14: ...rmation 2 6 1 Modes The Resource Transducer and all function blocks in the device have modes of operation These modes govern the operation of the block Every block supports both automatic AUTO and out of service OOS modes Other modes may also be supported Changing modes To change the operating mode set the MODE_BLK TARGET to the desired mode After a short delay the parameter MODE_BLOCK ACTUAL shou...

Page 15: ... write 0x02 to the BOOT_OPERAT_FUNCTIONAL_CLASS object Index 605 To deactivate write 0x01 3 Restart the processor 2 6 3 Block instantiation Rosemount devices are pre configured with function blocks at the factory the default permanent configuration for the Rosemount 752 is listed below The Rosemount 752 can have up to nine additional instantiated function blocks 1 Proportional integral derivative ...

Page 16: ...ermanent and 19 are fully configurable by the host system Thirty link objects are available Host timer recommendations T1 96000 T2 1920000 T3 480000 Block execution times PID 10 ms Arithmetic 10 ms Input selection 10 ms Signal characterizer 10 ms Integrator 10 ms Network parameter Value Slot time 6 Maximum response delay 4 Maximum inactivity to claim LAS delay 60 Minimum Inter DLPDU delay 7 Time s...

Page 17: ...s You can select the appropriate equation using the MATHFORM parameter The Standard ISA PID equation is the default selection Input selector block 1300 The Input Selector ISEL Function Block can be used to select the first good Hot Backup maximum minimum or average of as many as eight input values and place it at the output The block supports signal status propagation Signal characterizer block 14...

Page 18: ...ers within the device except to clear the WRITE_LOCK parameter During this time the block will function normally updating inputs and outputs and executing algorithms When the WRITE_LOCK condition is cleared a WRITE_ALM alert is generated with a priority that corresponds to the WRITE_PRI parameter The FEATURE_SEL parameter enables the user to select a hardware or software write lock or no write loc...

Page 19: ...m parameters FAILED_ALARM MAINT_ALARM and ADVISE_ALARM which will contain information regarding some of the device errors which are detected by the indicator software There will be a RECOMMENDED_ACTION parameter which will be used to display the recommended action text for the highest priority alarm FAILED_ALARM will have the highest priority followed by MAINT_ALARM and ADVISE_ALARM will be the lo...

Page 20: ... displays which of the alarms is active Only the alarm with the highest priority will be displayed This priority is not the same as the FAILED_PRI parameter described above This priority is hard coded within the device and is not user configurable FAILED_ALM Alarm indicating a failure within a device which makes the device non operational MAINT_ALARMS A maintenance alarm indicates the device or so...

Page 21: ...ABLED parameter contains a list of informative conditions that do not have a direct impact on the device s primary functions ADVISE_MASK The ADVISE_MASK parameter will mask any of the failed conditions listed in ADVISE_ENABLED A bit on means the condition is masked out from alarming and will not be reported ADVISE_PRI ADVISE_PRI designates the alarming priority of the ADVISE_ALM see ADVISE_PRI on ...

Page 22: ...s implies that the device is in need of repair and must be fixed immediately There are five parameters associated with FD_FAILED_ALARMS specifically they are described below FD_FAILED_MAP FD_FAIL_MAP parameter maps conditions to be detected as active for FD_FAIL_ALARM category Thus the same condition may be active in all some or none of the four alarm categories Below is a list of the failures wit...

Page 23: ... recommended values are three to seven FD_ OFFSPEC _ACTIVE FD_ OFFSPEC _ACTIVE parameter displays the active alarms is active that are being selected for this category Only the alarm with the highest priority will be displayed This priority is not the same as the FD_ OFFSPEC _PRI parameter described above This priority is hard coded within the device and is not user configurable FD_ OFFSPEC _ALM A...

Page 24: ...er is used primarily to broadcast a change in the associated active conditions which are not masked for this alarm category to a Host System FD MAINT ALARMS A maintenance alarm indicates informative conditions that do not have a direct impact on the device s primary function s There are five parameters associated with MAINT_ALARMS they are described below FD_MAINT_MAP The FD_MAINT_MAP parameter co...

Page 25: ...user configurable FD_ CHECK _ALM FD_CHECK _ALM is an alarm indicating advisory alarms These conditions do not have a direct impact on the process or device integrity Recommended actions for field diagnostics alerts FD_ RECOMMEN _ACT The FD_RECOMMEN_ACT parameter displays a text string that will give a recommended course of action to take based on which type and which specific event of the Field Di...

Page 26: ...function block tags from the factory are PID_1200_XXXX 3 ISEL_1300_XXXX 3 CHAR_1400_XXXX 3 ARITH_1500_XXXX 3 INTEG_1600_XXXX 3 BLK_TYPE_ 2 Enter the Block Type of the function block that contains the parameter to be displayed This parameter is generally selected via a drop down menu with a list of possible function block types e g ISEL PID etc PARAM_INDEX_ 2 The PARAM_INDEX_ parameter is generally...

Page 27: ...m Units the UNITS_TYPE_ must be set to CUSTOM Figure 2 5 Configuring the LCD to Display Data from a Different Device on the Fieldbus Segment PID LCD Configuration Block TT102 71 2 DEG C Characterizer DISPLAY_PARAM_SEL n n 1 8 For each value displayed BLK_TAG_n BLK_TYPE_n PARAM_INDEX_n CUSTOM_TAG_n UNITS_TYPE_n CUSTOM_UNITS_n Arithmetic Input Selector TAG ISEL 1300 IN_1 IN_2 IN_3 IN_4 IN_5 IN_6 IN_...

Page 28: ...22 Reference Manual 00809 0100 4377 Rev CA Configuration January 2018 Configuration ...

Page 29: ...tion tool manual 3 2 Safety messages Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operations Information that raises potential safety issues is indicated by a warning symbol Refer to the following safety messages before performing an operation preceded by this symbol Explosions can result in death or serious injury...

Page 30: ...cess outside of the United States contact the nearest Rosemount representative Within the United States call the Rosemount National Response Center using the 1 800 654 RSMT 7768 toll free number This center available 24 hours a day will assist you with any needed information or materials The center will ask for product model and serial numbers and will provide a Return Material Authorization RMA n...

Page 31: ... Safety messages Procedures and instructions in this section may require special precautions to ensure the safety of the personnel performing the operations Information that raises potential safety issues is indicated by a warning symbol Refer to the following safety messages before performing an operation preceded by this symbol Explosions can result in death or serious injury Do not remove the i...

Page 32: ... device 2 Recycle power to device 3 Electronic failure Refer to Device does not show up on segment in Table 4 1 for more information Problem Identified Yes No Perform Recommended Action see Table 4 1 Check Segment see Device does not stay on segment in Table 4 1 for more information Problem Identified Yes No Perform Recommended Action see page 13 If the problem persists contact your local Rosemoun...

Page 33: ...ATUS see Table 4 4 Problem identified Yes No Perform recommended action see Table 4 4 For more detailed information Perform the following steps in the LCD Transducer Block to determine the recommended action BLOCK_ERR see page 29 If error condition does not exist in the Resource Block then it is a configuration problem see Block errors in Table 4 2 Problem identified Yes No If the problem persists...

Page 34: ... Replace electronics Incompatible network settings Change host network parameters Refer to host documentation for procedure Device does not stay on segment 2 2 Wiring and installation 31 25 kbit s voltage mode wire medium application guide AG 140 available from the fieldbus Foundation Incorrect signal levels Refer to host documentation for procedure 1 Check for two terminators 2 Excess cable lengt...

Page 35: ...tion Messages Condition Name and Description Other Simulate active this indicates that the simulation switch is in place this is not an indication that the i o blocks are using simulated data Memory failure A memory failure has occurred in FLASH RAM or EEPROM memory Device needs maintenance now Out of service the actual mode is out of service Condition name Recommended action LOI error 1 Restart p...

Page 36: ...ys BLOCK CONFIGURATION perform the Recommended Action One or more of the display parameters are not configured properly See LCD transducer block on page 39 752 is being displayed or not all of the values are being displayed The LCD block parameter DISPLAY_PARAMETER_SELECT is not properly configured See LCD transducer block on page 39 The display reads OOS The resource and or the LCD Transducer blo...

Page 37: ... and click Documents Drawings 3 Click Manuals Guides 4 Select the appropriate Quick Start Guide A 2 Ordering Information Specifications and Drawings To view current Rosemount 752 Remote Indicator Ordering Information Specifications and Drawings follow these steps 1 Go to Emerson com Rosemount Rosemount 752 2 Scroll as needed to the green menu bar and click Documents Drawings 3 For installation dra...

Page 38: ...Reference Data January 2018 Reference Manual 00809 0100 4377 Rev CA Specifications and Reference Data 32 ...

Page 39: ...arameter used only for conformance testing 09 DD_RESOURCE String identifying the tag of the resource which contains the Device Description for the resource 10 MANUFAC_ID Manufacturer identification number used by an interface device to locate the DD file for the resource 11 DEV_TYPE Manufacturer s model number associated with the resource used by interface devices to locate the DD file for the res...

Page 40: ...ed notify messages possible 32 LIM_NOTIFY Maximum number of unconfirmed alert notify messages allowed 33 CONFIRM_TIME The time the resource will wait for confirmation of receipt of a report before trying again Retry will not happen when CONFIRM_TIME 0 34 WRITE_LOCK If set all writes to static and non volatile parameters are prohibited except to clear WRITE_LOCK Block inputs will continue to be upd...

Page 41: ...cast of a condition 55 FD_FAIL_ALM Used primarily to broadcast a change in the associated active conditions which are not masked for this alarm category to a Host System 56 FD_OFFSPEC_ALM Used primarily to broadcast a change in the associated active conditions which are not masked for this alarm category to a Host System 57 FD_MAINT_ALM Used primarily to broadcast a change in the associated active...

Page 42: ...asked out from alarming This parameter is the Read Only copy of FD_FAIL_MASK 84 FAILED_ACTIVE Enumerated list of failure conditions within a device All open bits are free to be used as appropriate for each specific device This parameter is the Read Only copy of FD_FAIL_ACTIVE 85 MAINT_PRI Designates the alarming priority of the MAINT_ALM 86 MAINT_ENABLE Enabled MAINT_ALM alarm conditions Correspon...

Page 43: ...de of a block may be restricted to one or more of the supported modes Table B 2 BLOCK_ERR Conditions Number Name and description 0 Other 1 Block Configuration Error A feature in CYCLE_SEL is set that is not supported by CYCLE_TYPE 3 Simulate Active This indicates that the simulation jumper is in place This is not an indication that the I O blocks are using simulated data 6 Device needs maintenance...

Page 44: ...tatus parameters associated with the resource block Table B 3 Alarm Priority Levels Number Description 0 The priority of an alarm condition changes to 0 after the condition that caused the alarm is corrected 1 An alarm condition with a priority of 1 is recognized by the system but is not reported to the operator 2 An alarm condition with a priority of 2 is reported to the operator but does not req...

Page 45: ...ve will set the Active status in the Status attribute As soon as the Unreported status is cleared by the alert reporting task another block alert may be reported without clearing the Active status if the subcode has changed BLOCK_ERR 6 This parameter reflects the error status associated with the hardware or software components associated with a block it is a bit string so that multiple errors may ...

Page 46: ...ion level of the static data associated with the function block STRATEGY 3 The strategy field can be used to identify grouping of blocks TAG_DESC 2 The user description of the intended application of the block TRANSDUCER_DIRCTORY 9 A directory that specifies the number and starting indicies of the transducers in the transducer block TRANSDUCER_TYPE 10 Identifies the transducer that follows UNITS_T...

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Page 48: ...n com Asia Pacific Regional Office Emerson Automation Solutions 1 Pandan Crescent Singapore 128461 65 6777 8211 65 6777 0947 Enquiries AP Emerson com Middle East and Africa Regional Office Emerson Automation Solutions Emerson FZE P O Box 17033 Jebel Ali Free Zone South 2 Dubai United Arab Emirates 971 4 8118100 971 4 8865465 RFQ RMTMEA Emerson com Linkedin com company Emerson Automation Solutions ...

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