Summary of Contents for Fieldbus Specialists Profibus
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Page 1: User Manual
MCD 3000 – PROFIBUS GATEWAY PROFIBUS Gateway for MCD 3000 Series Soft Starters P/N FS-1135 User Manual Ver. 1.9 10 October 2003 © Copyright 2002 Fieldbus Specialists MCD 3000 SERIES USER MANUAL... - Page 2 JP/AJ Modified to reflect compliance with AMB00000 Rev. G 10-OCT-2003 Note re.byte sequencing in 2.10 TECHNICAL SUPPORT In case of any questions or problems, please contact Fieldbus Specialists on sales@fieldbus.com.au. We will endeavour to reply immediately. PREFACE MCD 3000 SERIES...
- Page 3 MCD 3000 – PROFIBUS GATEWAY The data and illustrations in this manual are not binding. Fieldbus Specialists reserve the right to modify our products in line with our policy of continuous product development. The information in this manual is subject to change without notice and should not be considered as a commitment by Fieldbus Specialists.
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Page 4: Table Of Contents
MCD 3000 – PROFIBUS GATEWAY CONTENTS INTRODUCTION ..........................6 ....................... 6 MPORTANT USER INFORMATION ..............................6 ENERAL INSTALING THE GATEWAY ......................8 ......................8 ATEWAY CONNECTION DIAGRAM ............................9 RONT PANEL ........................11 NSTALLATION SEQUENCE ..........................11 OWER CONNECTION PROFIBUS ........................ - Page 5 Table 17 – Gateway specifications........................32 Table 18 – Troubleshooting guide.........................33 Figure List Figure 1. Typical diagram of a PROFIBUS network, a gateway and an RS-485 sub-network.......8 Figure 2. Gateway front panel ..........................9 Figure 3. Entering address via dip switches, an example ..................13 Figure 4.
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Page 6: Introduction
MCD 3000 devices. The RS-485 link may be used to interface a MCD 3000 device to a PROFIBUS network using the PROFIBUS to MCD 3000 gateway. The PROFIBUS Master can then control any connected MCD 3000 device –... - Page 7 MCD 3000 – PROFIBUS GATEWAY When reading this manual, it may help to refer to the MCD 3000 Operating Instructions, Danfoss document no. AMB00000. MCD 3000 SERIES USER MANUAL...
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Page 8: Instaling The Gateway
Figure 1. Typical diagram of a PROFIBUS network, a gateway and an RS-485 sub-network. A gateway can coexist with a number of other PROFIBUS nodes, including other gateways. Each gateway constitutes a single PROFIBUS node, even if it connects to a number of MCD 3000 devices. MCD 3000 SERIES... -
Page 9: Front Panel
3. Power connector, 2 pin removable terminal block, 4. Bi-colour PROFIBUS status LED, 5. Bi-colour RS-485 status LED, 6. Dip switches for PROFIBUS address selection. The following table indicates the status of the PROFIBUS connection. MCD 3000 SERIES USER MANUAL... -
Page 10: Table 1 – Led Indication
PROFIBUS RS-485 Gateway status Gateway starting (max. 6 sec) or no power Invalid PROFIBUS address PROFIBUS link down – no PROFIBUS Master, incorrect address or no connection, PROFIBUS link error – wrong configuration or G/R/B parameter in Master PROFIBUS link up and problem-free... -
Page 11: Installation Sequence
PROFIBUS master, see section 2.5 for instructions. Configure the PROFIBUS master for one MCD device only. On success the PROFIBUS status LED will go green, on error it will blink red. If the LED stays red, check the cable, address on the gateway and address setting in the master. -
Page 12: Profibus Connection
5 and 6. The shield on the PROFIBUS socket is galvanically connected to the metal top lid on the enclosure. An earthing lug is provided for earthing the top lid. When the PROFIBUS cable plug is in the MCD 3000 SERIES... -
Page 13: Gateway Configuration
Gateway is configured with an 8-way DIP switch that is located on the front panel of the gateway. The address must be set to a value that is not in use by any other device on the PROFIBUS network. Valid address range – 0 to 125. -
Page 14: Mcd3000 Connection
MCD 3000 – PROFIBUS GATEWAY 2.6 MCD3000 connection 2.6.1 Cabling The MCD 3000 devices should be connected to the RS-485 serial sub-network as per the MCD 3000 Operating Instructions. The gateway is connected to the RS-485 sub-network using a 9 pin male DB connector, located to the left side of the enclosure. -
Page 15: Figure 4. Recommended Wiring Diagram For One Mcd3000 Device
MCD 3000 – PROFIBUS GATEWAY to pin 1 to pin 5 RS485 to pin 9 cable shield MCD3000 device Gateway Figure 4. Recommended wiring diagram for one MCD3000 device. MCD3000 MCD3000 MCD3000 to pin 1 to pin 5 FS-1135 to pin 9 gateway Figure 5. -
Page 16: Mcd3000 Configuration
NOTE: When the MCD3000 device is set for “Remote”, it does not execute commands received over the RS-485 link. However, it still acknowledges these commands. Consequently, the gateway and the PROFIBUS master cannot detect this condition. For working with a gateway, we recommend to set Local/Remote Mode parameter (Parameter 20) to 2 –... -
Page 17: Table 4 – Mcd 3000 Local/Remote Modes
MCD 3000 – PROFIBUS GATEWAY parameters is described in details in the MCD 3000 Series Soft Starter Operating Instructions. The following tables show the required configuration for the MCD 3000 soft starter parameters relevant to the operation of the gateway. -
Page 18: Programming The Master Controller
3.1 GSD file Information on the technical characteristics of the gateway is loaded into PROFIBUS master software by means of a GSD file. A floppy disk with the GSD file is supplied with the gateway. The GSD file name is “FS1135.GSD”. Follow the instructions in the... -
Page 19: Setting Profibus Parameters
MCD 3000 – PROFIBUS GATEWAY that the addresses of the MCD 3000 devices start at 1 and are consecutive, up to the number of expected devices. The first motor starter module relates to the MCD 3000 with address 1, the second one to 2 and so on. Address values are not related to physical positioning of MCD 3000 devices on the RS-485 sub-network. -
Page 20: Table 8 – Gateway Parameter, Gateway Operation On Communication Loss
The third parameter defines the timeout, in seconds, for communication with the master. If the gateway stays off-line on PROFIBUS for the time period as set in the third parameter, the gateway will take action as defined by the second parameter. Allowed range is 0 to 255. -
Page 21: Master-Slave Data Exchange
PLC. For details consult the PLC manual. 3.5 Data write area The only write data (data transferred from PROFIBUS master to the gateway) are contained in the control module – 3 bytes of data. These three bytes are used to issue commands to MCD3000 devices, as described later in this manual. -
Page 22: Data Read Area
Address of the slave that the Register command is for. Table 9 – PROFIBUS Write / Out Memory in control module 3.6 Data read area Read data (data that the PROFIBUS master reads from the gateway) come from the control module – 10 bytes – and from each slave module defined for MCD 3000 devices –... - Page 23 MCD 3000 – PROFIBUS GATEWAY communicating. Similarly, bit B1 set indicates slave 2 present. A bit set to 0 means that the corresponding slave is not present or not communicating. Bits related to slaves not declared on the network are always set to 0.
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Page 24: Issuing Commands
Table 11 – PROFIBUS Read / In memory 3.7 Issuing Commands PROFIBUS master can issue commands to each MCD 3000 at any time. The following Table 12 lists the commands as well as the purpose of these commands. The commands are shown in hexadecimal notation. -
Page 25: Table 12 – Valid Commands
MCD 3000 – PROFIBUS GATEWAY Command Action 0xB0 Start Motor 0xB2 Stop Motor 0xB4 Reset Trip State 0xB6 Coast To Stop 0xC0 Read Status 0xC2 Read Status_1 0xC6 Read RS-485 Protocol Version 0xC8 Read Trip Status 0xD0 Read Current 0xD2... - Page 26 On startup, the PROFIBUS Master should set the Master Handshake Register to 0. The gateway resets Slave Handshake Register to 0 while not on PROFIBUS network. This guarantees MCD 3000 SERIES USER MANUAL...
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Page 27: Table 13 – New Command / Command Acknowledge Handshaking
Commands take precedence over scanning of slaves and will be executed within 250 msec. If the PROFIBUS master detects undue delay in gateway acknowledging the command or sending a response, it should restart the gateway by placing it in OFFLINE state and then returning it to ONLINE. - Page 28 MCD 3000 – PROFIBUS GATEWAY 1. Check that the device is on-line, i.e. the network status bit is set – in this case check Read byte at offset 2, bit B2. If this bit is set to 1, you can proceed. If the bit equals 0, the device at address 3 is offline.
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Page 29: Operation Of The Gateway
MCD 3000 – PROFIBUS GATEWAY OPERATION OF THE GATEWAY 4.1 Scanning slaves The gateway starts scanning slaves only after the PROFIBUS Master sends the configuration data and the gateway goes online on PROFIBUS. The gateway periodically retrieves Status_1, Trip Code,... -
Page 30: Table 15 – Scanning Cycle Length For Different Baud Rates And The Number Of Mcd 3000 Devices Present
MCD 3000 – PROFIBUS GATEWAY No. of 1,200 2,400 bps 4,800 bps 9,600 bps 19,200 Devices 0.500 0.300 0.190 0.130 0.110 1.000 0.600 0.380 0.260 0.220 1.500 0.900 0.570 0.390 0.330 2.000 1.200 0.760 0.520 0.440 2.500 1.500 0.950 0.650 0.550... -
Page 31: Offline Slaves
MCD 3000 – PROFIBUS GATEWAY The gateway will automatically detect if a MCD 3000 device that was declared offline becomes available again. The Table 16 above shows the worst case time for detecting such a device, assuming that only one device on the network is offline. -
Page 32: Specifications
MCD 3000 – PROFIBUS GATEWAY SPECIFICATIONS Item Value Enclosure - Width 100 mm - Height 75 mm - Depth 110 mm Mounting DIN Rail or Screw Mounting PROFIBUS Interface - Connector Type 9 Pin DB Female - Galvanically Isolated Yes (850V) -
Page 33: Troubleshooting
No power extended period Incorrect polarity Gateway’s fuse blown Both LEDs flashing red PROFIBUS address PROFIBUS address on DIP switches set invalid outside the valid range 0-125 PROFIBUS Status LEDs No communication PROFIBUS Master is disconnected or off flashing red,...
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