PCH WILCOXON | Alldatasheet
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Page: 1/14 HART® Field Device Specification: Amphenol (Maryland) PCH Sensor Revision 1 Document 93064, rev. 1 Initial release: 6 November 2015 Current release: 9 May 2018 Author: Gregory Houck Amphenol (Maryland), Inc.
20511 Seneca Meadows Parkway,
Germantown, MD 20876, USA Effective June 16, 2017, Amphenol Corporation purchased the Wilcoxon Research brand and the Meggitt (Maryland), Inc. business in its entirety. The Meggitt email address is set for temporary use. Notification of new email addresses will be provided shortly. This document contains technology governed by 15 CFR 730-774, the Export Administration Regulations (EAR), and is categorized as EAR99. The information contained in this document is the property of Amphenol (Maryland), Inc., and is proprietary and/or copyright material. This information and this document may not be used without the express authorization of Amphenol (Maryland), Inc. Any unauthorized use or disclosure may be unlawful. ® HART is a registered trademark of the HART Communication Foundation
Page: 2/14 Amphenol (MD), Inc., Proprietary Information Export Controlled Technical Data as specified on cover page Table of Contents
Page: 3/14 Amphenol (MD), Inc., Proprietary Information Export Controlled Technical Data as specified on cover page 1. Introduction Scope The Wilcoxon, model PCH series sensor, revision 1 complies with HART Protocol Revision 7.5. This document specifies all the device specific features and documents HART Protocol implementation details (e.g., the Engineering Unit Codes supported). The functionality of this Field Device is described sufficiently to allow its proper application in a process and its complete support in HART capable Host Applications. Purpose This specification is designed to complement other documentation (e.g., the Installation Manual) by providing a complete, unambiguous description of this Field Device from a HART Communication perspective Who should use this document? The specification is designed to be a technical reference for HART capable Host Application Developers, System Integrators and knowledgeable End Users. It also provides functional specifications (e.g., commands, enumerations and performance requirements) used during Field Device development, maintenance and testing. This document assumes the re ader is familiar with HART Protocol requirements and terminology. References HART Smart Communications Protocol Specification. HCF_SPEC-12. Available from the HCF. 2. Device Identification Manufacturer Name: Wilcoxon Model Name(s): PCH420V-M12, PCH420V-R6 Manufacture ID Code: 24,744 (0x60A8) Device Type Code: 58,092(0xE2EC) HART Protocol Revision 7.5 Device Revision: 1 Number of Device Variables 4 Physical Layers Supported Bell202 Physical Device Category Sensor, Vibration, Velocity The model name and serial number are engraved on the case of the sensor. 3. Product Overview The PCH series sensor is a loop powered vibration sensor with HART ® interface. The sensor is a piezo -electric accelerometer or velocity sensor (two hardware versions). The 4 -20mA output is proportional to the level of vibration measured at its mounting base. The sensor can transmit several banded vibration values and its own internal temperature via HART®. Configuration and local calibration are performed through the digital communication interface. ® HART is a registered trademark of the HART Communication Foundation ® HART is a registered trademark of the HART Communication Foundation
Page: 4/14 Amphenol (MD), Inc., Proprietary Information Export Controlled Technical Data as specified on cover page 4. Product Interfaces The PCH420 series is a loop powered industrial vibration sensor contained with-in a stainless-steel case that includes an external connector. 5. DEVICE VARAIBELS This Field Device does not expose any Device Variables. Device variables are mapped to Dynamic variables and are not configurable.
Page: 5/14 Amphenol (MD), Inc., Proprietary Information Export Controlled Technical Data as specified on cover page 6. Dynamic Variables Four Dynamic Variables are implemented Meaning Units PV Band1, velocity in/s[114], m/s[21], mm/s[240] Fixed to DV0 Fixed to analog output SV Band2, velocity in/s[114], m/s[21], mm/s[240] Fixed to DV1 TV Band3, velocity in/s[114], m/s[21], mm/s[240] Fixed to DV2 QV Internal Electronic Temperature degC[32], degF[33],K[35], R[34] Fixed to DV3 7. Status Information 7.1. Bit 4 (”More Status Available) is set for the following conditions 7.1.1. NV memory SPI communication error 7.1.2. NV memory CRC error 7.1.3. Signal processing compute time flag –Device status bit D7, device malfunction 7.1.4. DAC SPI communication error –Device status bit D7, device malfunction 7.1.5. DAC fault input indicate error –Device status bit D7, device malfunction 7.1.6. DAC fault register indicate error –Device status bit D7, device malfunction 7.2. Additional Device Status (command #48) 7.2.1. Hardware Failure Memory defect SPI error – Standard Status0 Register 8, bit 1 7.2.2. Hardware Failure Memory defect CRC error - Standard Status 0 Register 8,bit 1 7.2.3. AD5421 SPI Fault -Standard Status 0, Register8, bit 6 -Device Specific Status1; Register1, bit7 7.2.4. AD5421 PEC fault -Standard Status 0, Register8, bit 7 -Device Specific Status1; Register1, bit7 7.2.5. AD5421 loop, current over fault -Standard Status 0, Register8, bit 7 -Device Specific Status1; Register1, bit5 7.2.6. AD5421 loop, current under fault -Standard Status 0, Register8, bit 7 -Device Specific Status1; Register1, bit 7.2.7. AD5421 Temperature fault -Standard Status 0, Register8, bit 7 -Device Specific Status1; Register1, bit3 7.2.8. DAC SPI Fault -Standard Status 0, Register8, bit 7 -Device Specific Status1; Register1, bit2 7.2.9. AD5421 loop under 6V fault -Standard Status 0, Register8, bit 1 7.2.10. DAC_FaultPin -Standard Status 0, Register8, bit 0 7.2.11. HF_Fatal_Error -Device Specific Status 0, Register0, 0xAA 7.2.12. SF_DSP_TIMEOUT_COUNT -Device Specific Status 1, Register2 7.2.13. SF_Not_Calibrated -Device Specific Status 0, Register0, 0x55
Page: 6/14 Amphenol (MD), Inc., Proprietary Information Export Controlled Technical Data as specified on cover page 8. Universal Commands This device supports all universal HART commands.
0 Read Unique Identifier
1 Read Primary Variable
2 Read Loop Current and Percent of range
3 Read Dynamic Variables and Loop Current
Command #3 returns PV, SV, TV and Qv for a total of 24 bytes.
6 Write Polling Address
7 Read the Loop Configuration
8 Read Dynamic Variable Classifications
9 Read Device Variables with Status
11 Read the Unique Identifier Associated With Tag
12 Read Message
13 Read Tag, Descriptor, Date
14 Read the Primary Variable Transducer Information
15 Read the Device Information
16 Read the Final Assembly Number
17 Write Message
18 Write Tag, Descriptor, Date
19 Write Final Assembly Number
20 Read the Long Tag
21 Read the Unique Identifier Associated With Long Tag
22 Write Long Tag
38 Reset Configuration Change Flag
48 Read Additional Device Status
Page: 7/14 Amphenol (MD), Inc., Proprietary Information Export Controlled Technical Data as specified on cover page 9. Common-Practice Commands The following common-practice commands are supported
33 Read Device Variables
34 Write Primary Damping Value
35 Write Primary Variable Range Values
36 Set Primary Variable Upper Range Value
37 Set Primary Variable Lower Range Value
40 Enter Exit Fixed current Mode
42 Perform Device Reset
44 Write Primary Variable Units
45 Trim Loop Current Zero
46 Trim Loop Current Gain
50 Read Dynamic Variable Assignments
53 Write Device Variable Units
54 Read Device Variable Information
59 Write Number of Response Preambles
71 Lock a Device
76 Read Lock Device State
78 Read Aggregated Commands
79 Write Device a Variable
89 Set Real-Time Clock
90 Read Real-Time Clock
95 Read Device Communication Statistics
100 Write Primary Variable Alarm Code
103 Write Burst Period
104 Write Burst Trigger
105 Read Burst Mode Configuration
107 Write Burst Device Variables
108 Write Burst Mode Command Number
109 Burst Mode Control
512 Read Country code
513 Write country code
- Non –public Device-Specific Commands – Contact Factory for details
Page: 8/14 Amphenol (MD), Inc., Proprietary Information Export Controlled Technical Data as specified on cover page 11. Device specific commands
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Page: 11/14 Amphenol (MD), Inc., Proprietary Information Export Controlled Technical Data as specified on cover page 12. Unit Conversion 12.1. Temperature (degree C) 12.1.1. F = engineering value *1.8 +32 12.1.2. K = engineering value +273.1 12.2. Velocity (inch per second) 12.2.1. m/s = engineering value * 0.0254 12.2.2. mm/s = engineering value *25.4 13. Performance 13.1. Power-up Power up is less than 5 seconds. Analog 4-20 output is stable in less than 10 seconds. This device has no special requirements for the reset and power-down process. 13.2. Command Response Times Minimum -15ms Typical -25mS Maximum -75mS 13.3. Channel update time period Typical -250mS 13.4. Non-Volatile Memory The devices configuration parameters are stored in EEPROM. New data is written to this memory immediately on execution of a write command. 13.5. Modes Fixed current mode, using command 40 is cleared by power loss or a reset command 42. 13.6. Damping Command 34 Damping is standard and affects only the PV and the loop signal. Additional damping is available using device specific command 129, parameter “detector time constant”. This damping affects PV, SV and TV and can be changed per channel. 13.7. Specification sheet – Vibration transmitters with HART protocal Part number – 99249
Page: 12/14 Amphenol (MD), Inc., Proprietary Information Export Controlled Technical Data as specified on cover page ANNEX A. Capability Checklist N/A
Page: 13/14 Amphenol (MD), Inc., Proprietary Information Export Controlled Technical Data as specified on cover page ANNEX B. DEFAULT CONFIGURATION All Modes Damping = 1 second Alarm code = High Alarm QV = degree C [32] PV (DV0), SV (DV1), TV (DV2) Lower Frequency Limit = 2 Hz Upper Frequency Limit = 1500 Hz Filter Type= 2 PV (DV0) PV lower range = calibrated at the factory Detector Type= 1 Filter Detect Time= 0.75 SV (DV1), TV (DV2) Detector Type= 0 Filter Detect Time= 1 Velocity Device Variable code = inch per second [114] PV upper range 20mA = 1g
Page: 14/14 Amphenol (MD), Inc., Proprietary Information Export Controlled Technical Data as specified on cover page ANNEX C. REVISION HISTORY Rev 1- PCH Release Rev 1.01- Re-branded document