HRM-0800 Instruction Manual

Transcription

1 HRM-0800 Instruction Manual

2 Table of Contents 1 Highway Addressable Remote Transducer (HART ) 4 2 General Specifications 5 3 Dimensions: 6 4 General Description Introduction Purpose Functions 8 5 HRM0800 Presentation 9 6 Features Two Ethernet-Switch Ports mA Pass-Through Built-in Filters and Resistor Terminations DC to DC Converter 10 7 RS-485 Pass Through Operation Connections Details 11 8 Hardware DIP-switches S1, S2 and S HE10 Connection HE10 Pin-Out Connections for Field Devices Passive Transmitter with Analog Input Module Connections Active Transmitter (example for a 24VDC supply Transmitter) Smart valve Without Analog I/O card 15 9 Operation Power ON Behavior LED Indications Holding registers (% MW) Memory map MODBUS Holding Registers ( to ) MODBUS Holding Registers (460011) Web Server Ethernet Setup Static IP Address Embedded Web Pages Home Page Monitoring Device Information Run Time Parameters Diagnostic Page Ethernet Statistics HRM0800 Statistics HRM0800 Setup Configure IP Comm. Settings HRM0800 Configuration 31 Appendix A: Installation recommendations Ethernet architecture Grounding topology according to north America principles 35 REVISION HISTORY 36

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4 1 Highway Addressable Remote Transducer (HART ) The HART protocol makes use of the Bell 202 FSK standard to superimpose digital signals at a low level on top of the 4-20mA signal. This enables two-way communication and makes it possible for additional information beyond just the normal process variable to be communicated to/from a smart field instrument. The HART protocol communicates without interrupting the 4-20mA signal and allows a host application (master) to get two or more digital updates per second from a field device. As the digital FSK signal is phase continuous, there is no interference with the 4-20mA signal. 4

5 2 General Specifications Part number: Supply for HRM0800 Auxiliary input 24 VDC Supply for individual DC/DC converters Built-in 24 DC/DC converter Communication Ports: HRM V DC 500 ma Auxiliary Input Power Supply connections provided for powering field devices via 8 individual 24V DC-DC 500mA Maximum 1 24 V DC per Channel Continuous Short-Circuit Protection 1. Two RJ45 ports Embedded switch. Usage: - Embedded Web Page for Diagnostics, Ethernet setup - Modbus TCP/IP Data Access 2. One Removable 5-pin Terminal Block RS485, HART pass-through. Usage: - 16 devices maximum without repeater. Field Wire Requirements mm2 (24 16 AWG). Isolation Minimum 1 KV isolation between power supply and communication ports Indication 1. LED1: for HART Pass-Through communication status LED (Yellow) 2. LED2: for HART communication status LED (Yellow ) 3. LED3: Ethernet communication status LED (Yellow ) 4. LED4: Module OK/Scanning Status LED (Green ) 5. CH1-8 Over Current Fault Indication (30 ma) (Red ) Isolation HART channels are transformer isolated. (1.5KV between HART modem and HART field device) Polarity independent connection on the HART side. 30V DC isolation Channel to Channel. No. of HART Device per Channel 1 device per channel. HART Protocol Revision 7 supported. Secondary master device is supported. (i.e.: handheld configuration tool) Module Configuration Configuration via Ethernet port using embedded Web Pages (HTTP) DIP switches SW1 ON Position: 250 ohm termination disabled DIP switches SW2 ON Position: Filtering enabled DIP switches SW3 ON Position: without analog I/O Dimensions 155mm X 102 mm X 48mm Operating Temperature 0 to 60ºC Storage Temperature -20 C to +80 C, non-operating Operating Humidity 10-90%, non-condensing Compliance CE, UL, RoHS 5

6 3 Dimensions: Side View Top View 6

7 Instruction Manual: HRM Pub.: 01/2013 Rev General Description 4.1 Introduction This manual provides guidance for the installation, operation and maintenance of the product HRM0800 (8 channels HART Interface Multiplexer). Typical block diagram: HE10 connector ModbusTCP Embedded Ch1(+) Ch1(-)...Ch4(+)Ch4(-) Ch5(+)Ch5(-)... Ch8(+)Ch8(-) Servers HTTP HART Pass-Through HART Modem Embedded Switch CPU Addressable RS-485 HART Pass-through HART Modem... (1) Asset Management or HART OPC client connection via Serial RS485 Port or Ethernet. (2) Module Configuration via web pages and Asset Management via Modbus/ TCP-IP. Note: Asset Management Available on either the Ethernet OR RS-485 port at one time. 7

8 4.2 Purpose The HRM0800 is a HART Interface Multiplexer unit, which allows access to 8 Channels HART communications on existing 4-20mA loop. 4.3 Functions At power up the module scans the 8 channels and retrieves all the HART Data (Manufacture ID, Device ID, etc.). This information is routed to three internal memory areas: Pass-Through PC can use this port for configuration of field instruments Embedded Web Server (HTML pages) Most HART Data can be viewed on web pages using standard web clients (Internet Explorer 7.0, Fire Fox, Netscape, etc.) x Registers Mapping (Holding Registers) All HART data from each detected device can be mapped to holding registers (4X). The default configuration uses 14 holding registers per channel and can be modified to meet your applications using the configuration web page. The information can be accessed using standard Modbus / TCP- IP protocol. 8

9 Instruction Manual: HRM Pub.: 01/2013 Rev HRM0800 Presentation HRM0800 is a HART Interface Multiplexer. It contains 8 channels and two HART modem. 1 8 Channel Connectors 7 24 Vdc Supply for HRM S2 Switch/Ch for Built-In Filter 8 HE10 Connector for 4-20 ma, 8 Channels 3 S1 Switch/Ch for 250 Ohms toward PLC 4 S3 Switch/Ch without analog I/O 9 RS485 HART Pass-Through port 5 Auxiliary input 24 Vdc Supply for 10 RJ45 Shielded Ethernet built-in two port Switch individual DC/DC converters 6 Current Limit Indications per CH

10 6 Features 6.1 Two Ethernet-Switch Ports The HRM0800 is equipped with two Shielded Ethernet Switch ports, used to daisy chain multiple modules mA Pass-Through The 4-20mA signals for each channel are accessible via the HE10 connector. Various quick connect cables are available for easy connection to PLC analog input/output modules. 6.3 Built-in Filters and Resistor Terminations The HRM0800 has three sets of 8 dip switches. Each channel has one dip switch assigned from each of the sets. The first switch is used to provide internal 250 Ohms resistor loop impedance when the PLC analog input does not provide it. The second switch is used to enable the filtering of the HART information when a smart valve is used. The third switch is to close the current loop when the module is used without an analog I/O card. 6.4 DC to DC Converter The HRM0800 has two 24 VDC power inputs; both can be supplied with one source. The first 24Vdc input is used to supply HRM0800 and the second 24Vdc supply input is re-distributed to supply the loop current for each channel. The supply of each channel is isolated using a DC to DC converter. The DC to DC converter can deliver 1 Watts to the connected load. 10

11 7 RS-485 Pass Through Operation 7.1 Connections Details The Pass-Through port is the RS 485 port. It can be configured as 2 wire or 4 wire depending on the need. Connection details for the port: RX+ RX- GND TX- TX+ RX+ RX- GND TX- TX+ 11

12 8 Hardware To connect field devices, 3.81mm pitch 8X6 pole double deck connector is used; six poles per channel are needed. For the control system analog input or output module, the Quick Connect HE10 connectors are used (please refer to Appendix A for a list of available cables and pin-out diagrams). 8.1 DIP-switches S1, S2 and S3 Switch S1 : used to bypass the 250 Ohm line impedance of the module. Switch S2 : used to connect the filtering capacitor. Switch S3 : use the module without analog IO card. Operating modes (Analog passthrough side) Switch Settings S1 S2 S3 a. Without Analog I/O module OFF OFF ON b. With Analog Input module with filter OFF ON OFF c. With Analog Input module without filter ON OFF OFF d. With Analog Output module OFF OFF OFF With the above configuration we can do following configuration: a. Without Analog I/O module: Current loop is completed manually through switch or from HE10 connector. b. With Analog Input module with filter: Loop is complete by connecting Input module in series i.e. across analog passthrough. c. With Analog Input module without filter: Loop is complete by connecting Input module in series i.e. across analog passthrough. d. With Analog Output mode : Loop is complete by connecting Output module in series i.e. across analog passthrough. 8.2 HE10 Connection The HE10 connection is used to connect the analog input or output module of the control system. A series of Quick-Connect cables are available for the following analog IO cards: ACO ACI ACI/AVI ACO I/O High Density Analog Out I/O Module (8 Ch) High Density Analog In I/O Module (16 Ch) I/O Analog In Module (8 Ch Differential) Analog Out Module (4 Ch) 12

13 8.2.1HE10 Pin-Out CH-1 HART +ve CH-1 HART -ve CH-2 HART +ve CH-2 HART -ve CH-3 HART +ve CH-3 HART -ve CH-4 HART +ve CH-4 HART -ve CH-5 HART +ve CH-5 HART -ve CH-6 HART +ve CH-6 HART -ve CH-7 HART +ve CH-7 HART -ve CH-8 HART +ve CH-8 HART -ve N/C N/C N/C N/C 13

14 8.3 Connections for Field Devices 8.3.1Passive Transmitter with Analog Input Module Connections 8.3.2Active Transmitter (example for a 24VDC supply Transmitter) 8.3.3Smart valve 14

15 8.3.4 Without Analog I/O card Caution: Ch-x +24V [4] and Ch-x GND [5] are the outputs of the internal Dc to Dc converter. Note: Do not connect outside power to it. Please refer to wiring diagram to connect external supply. 15

16 9 Operation 9.1 Power ON Behavior OK LED Flashing slow : HRM0800 Update connection window (up to 10 Sec). OK LED Flashing rapid : HRM0800 Internal test (up to 10 Sec). Ethernet OK LED steady on: Ethernet enabled. HART OK LED flashing: HRM0800 scanning for field devices (up to 20 sec). HART OK LED steady: At least one device found and connected. 9.2 LED Indications 8 x LED Current Limitations (RED): Over current indication >= 30 ma. OK LED (Green): HRM0800 health. Ethernet OK (Yellow): Ethernet configuration. HART OK: Field device (transmitter/smart valve) connection status. Pass-Through (Yellow): RS-485 Pass-through activity. HRM0800 LED indications: Name Color Status Description Over Current LED ON Over Current : Loop Current >= 30 ma (one per Channel) OFF Normal Operation: Loop Current < 30mA OK LED Flashing slow In Upgrade mode : used for Firmware upgrade Flashing rapid Internal test ON Normal Operation OFF HRM0800 Power Supply not connected Hardware failure: Call your regional office Ethernet OK ON Ethernet Port ON HART OK Flashing Scanning for HART Field Device ON At least One Device Connected OFF No Devices detected Pass-Through ON Flashing RS-485 pass through connected and data transmitting is active. OFF No Connection 16

17 10 Holding registers (% MW) Memory map HRM0800 supports Modbus function code 03 (Read Holding Registers), 16 (Write Holding registers) and 23 (read/write Holding registers). When using the IO Scanning function to read the HRM holding register, the Unit ID has to be set to 1. Default memory map between HART values and Modbus registers (4X, % MW). Holding Register IEC Map Description Data type Bytes %MW3 CH-0 Current Value Float %MW5 CH-0 Percentage Value Float %MW7 CH-0 Device Status Word %MW9 CH-0 Primary Variable Float %MW11 CH-0 Secondary Variable Float %MW13 CH-0 Tertiary Variable Float %MW15 CH-0 Quaternary Variable Float %MW17 CH-1 Current Value Float %MW19 CH-1 Percentage Value Float %MW21 CH-1 Status Word %MW23 CH-1 Primary Variable Float %MW25 CH-1 Secondary Variable Float %MW27 CH-1 Tertiary Variable Float %MW29 CH-1 Quaternary Variable Float %MW31 CH-2 Current Value Float %MW33 CH-2 Percentage Value Float %MW35 CH-2 Status Word %MW37 CH-2 Primary Variable Float %MW39 CH-2 Secondary Variable Float %MW41 CH-2 Tertiary Variable Float %MW43 CH-2 Quaternary Variable Float %MW45 CH-3 Current Value Float %MW47 CH-3 Percentage Value Float %MW49 CH-3 Status Word %MW51 CH-3 Primary Variable Float %MW53 CH-3 Secondary Variable Float %MW55 CH-3 Tertiary Variable Float %MW57 CH-3 Quaternary Variable Float %MW59 CH-4 Current Value Float %MW61 CH-4 Percentage Value Float %MW63 CH-4 Status Word %MW65 CH-4 Primary Variable Float %MW67 CH-4 Secondary Variable Float %MW69 CH-4 Tertiary Variable Float %MW71 CH-4 Quaternary Variable Float %MW73 CH-5 Current Value Float %MW75 CH-5 Percentage Value Float %MW77 CH-5 Status Word %MW79 CH-5 Primary Variable Float %MW81 CH-5 Secondary Variable Float %MW83 CH-5 Tertiary Variable Float %MW85 CH-5 Quaternary Variable Float 4 17

18 Holding Register IEC Map Description Data type Bytes %MW87 CH-6 Current Value Float %MW89 CH-6 Percentage Value Float %MW91 CH-6 Status Word %MW93 CH-6 Primary Variable Float %MW95 CH-6 Secondary Variable Float %MW97 CH-6 Tertiary Variable Float %MW99 CH-6 Quaternary Variable Float %MW101 CH-7 Current Value Float %MW103 CH-7 Percentage Value Float %MW105 CH-7 Status Word %MW107 CH-7 Primary Variable Float %MW109 CH-7 Secondary Variable Float %MW111 CH-7 Tertiary Variable Float %MW113 CH-7 Quaternary Variable Float 4 Status Registers Holding Register IEC Map Description Data type Bytes %MW59999 CH-0 connection status Word 2 MSB, channel connected 15 s LSB exchange count %MW60000 CH-1 connection status Word 2 MSB, channel connected 15 s LSB exchange count %MW60001 CH-2 connection status Word 2 MSB, channel connected 15 s LSB exchange count %MW60002 CH-3 connection status Word 2 MSB, channel connected 15 s LSB exchange count %MW60003 CH-4 connection status Word 2 MSB, channel connected 15 s LSB exchange count %MW60004 CH-5 connection status Word 2 MSB, channel connected 15 s LSB exchange count %MW60005 CH-6 connection status Word 2 MSB, channel connected 15 s LSB exchange count %MW60006 CH-7 connection status Word 2 MSB, channel connected 15 s LSB exchange count %MW60007 HRM health status : Word 2 If LSB is 1 then OK Otherwise fail %MW60008 HRM RS-485 Port status Word 4 If LSB is 1 then OK Otherwise fail %MW60010 HRM rescan mode Word 2 8th LSB mode 7 s LSB manual mode mask 18

19 10.1 MODBUS Holding Registers ( to ) Representation of one HART Channel Refresh count Status register of HRM: 10.2 MODBUS Holding Registers (460011) MODBUS holding register keeps the status of Rescan of HRM. This register contains two different fields. The detail of this register is showing below: First field: 8th bit of register, is showing the rescan mode whether it is auto or manual. If this bit is non-zero then auto rescan is selected and if zero then manual rescan is selected. Second field: Lower 8 bits of register, is showing the status that, which channel request are sending manually. The second field has no meaning if the rescan mode is auto. This 8 bits corresponds to 8 HART channels of HRM and if any users wants to connect channel manually then they make a zero to one transition on that particular bit which corresponds to requested channel i.e. same as what we are doing on Web Server for Rescan. Representation of Rescan Status register of HRM: 19

20 11 Web Server 11.1 Ethernet Setup Static IP Address Ethernet default setting IP Address: SubnetMask: Gateway: Connect a cross-over OR a straight-through cable (automatic detected). Change the PC Ethernet settings to match the xxx network. Example: Control Panel > Network Settings > TCP/IP Properties Change to. 20

21 Open an Internet Browser and type the IP address of the unit HRM0800 as (Internet Explorer 7 is used in this example). The HRM0800 s home page should be loaded. Click on the Setup tab and the Login window will pop up, User Name: USER and Password : USER. Then Setup menu appears and you can select the device IP configuration. 21

22 Click on the Configure IP, and change to the desired IP address. Click Update Configuration and a message will pop up to Confirm Changes. 22

23 Click OK and a confirmation page will appear. The HRM0800 will automatically reboot with the new address. Please take note of your new IP address. 23

24 11.2 Embedded Web Pages Home Page Monitoring 24

25 Device Information Different Channel Status: 25

26 Run Time Parameters For Different Channel: % (mA) (mA) % 42D1 26

27 Diagnostic Page Ethernet Statistics 27

28 HRM0800 Statistics N.C- -N.C- -N.C- -C- -N.C- -N.C- -N.C- -N.C Q 131.3P 003.3H HRM0800 Setup 28

29 Configure IP 00:17:F1:00:03:0C 29

30 Comm. Settings Communication Settings: RS-485 Baud rate Select the baud rate for the RS-485 port for operation. Available rate : 9600, and baud. HRM0800 ID Enter the HRM0800 address for the RS-485 communication, that value is also used as a unique identifier for Ethernet HART pass through. Rescan Mode Auto: the HRM0800 rescan all free channels every 30 seconds to detect newly connected device. Manual: the HRM0800 will rescan only the channel selection for the newly connected device. Channel setting The channel value in HEX format you want to rescan when in manual. Example: to scan channel 5 and 7, the value to enter is 0A HEX. 30

31 HRM0800 Configuration These pages enable the user to convert Modbus register value to HART command messages. By selecting the source and the HART command, Modbus Registers values are converted to HART transaction. 31

32 Once configured the Modbus/TCP host is able to read and write to these registers and establish communication to retrieve or write critical HART data to and from the field device. HRM0800 Module Configuration Source Select HART for a read command or Modbus TCP for a write command. HART Configuration Channel (0 to 7) Enter the channel you want to communicate with. Command length Enter the length of the HART command (16 bits register). Type UC: Universal command. CP: Common practice command. DR: Device specific read command. DW: Device specific write command. RC: Read Command. Note: For the complete Command definitions, please refer to HART commands are divided in 3 types, the Universal Command, the Common Practice and the Device Specific Command. For HRM0800, Device Specific Commands were divided in two groups, the DR for the read and the DW for the Write. To facilitate the Modbus register mapping for Universal command 2 and 3, RC 2 and RC 3 commands were created. These commands have been formatted to fit Modbus register. RC 2 response: Registers 0-1: Current (ma) floating point formatted Registers 2-3: Percentage of range floating point formatted Registers 4-5: Device status RC 3 response: Registers 0-1: Primary variable floating point formatted Registers 2-3: Secondary variable floating point formatted Registers 4-5: Third variable floating point formatted Registers 6-7: Fourth variable floating point formatted [xxx-xxx] Enter the HART command number, - UC range from 0 to CP range from 32 to DX range from 128 to 999 NOTE: Please refer to instrument manual for the complete list of supported HART commands. Modbus Configuration Type Select register and type the command or respond for that HART command. 32

33 Address Enter the start address for the command or response of the HART command. Example: To add a new line to use Universal command #15 to read the output information of the device connected to channel #0 and store the information in to registers and following. The Source: read command so the source will be HART. The Channel: 0. The Length: the command response is 17 bytes long so 9 registers are needed. The Type: UC for Universal Command. The Command number: 15. The Modbus type: 4 for 4x registers. The Address: start at

34 Appendix A: Installation recommendations 12.1 Ethernet architecture 1) a higher level Ethernet network connects the gateway local switches together. 2) The gateways may be connected to the local switch in open loop daisy chain or star topology. 34

35 12.2 Grounding topology according to north America principles rules : 1) Each cabinet or junction box must be connected to the local ground. 2) The body of the device must be connected to the local ground. 3) The shield of the cable connected to the gateway cabinet must be connected to the cabinet. 4) In order to prevent from current flow in the cable shields due to local grounds voltage differences, only one point of each shielded cable must be grounded For a good EMC characteristics, the shield of the cables should be connected to the cabinet using a 360 s shieldbonding cable component, on the other end of the cable, the shield should be cut close to the cable isolation end and isolated using for example a thermal shrinkable isolator. DANGER : before working on the unconnected shield end of a cable (for example when isolating the shield), it is mandatory to isolate the other end of the cable shield from the ground, in order to prevent from a possible electric shock. Failing to this can lead to human injury or death. 35

36 REVISION HISTORY /i A manual revision code appears to the bottom of this manual and on the front cover of the manual. Doc. No.: UMAN/HRM0800 Ver.: 1.00 /i The following table outlines the changes made to the manual during each revision. The page numbers of a revision refer to the previous version. Revision code Date Revised content First Draft