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MUCM DF1 Application Manual
MUCM DF1
Installation and Programming Manual
This Manual describes the MUCM application for interfacing Allen-Bradley DF1 devices to a master of another
protocol.
Effective: 04 September 2002
Niobrara Research & Development Corporation
P.O. Box 3418 Joplin, MO 64803 USA
Telephone: (800) 235-6723 or (417) 624-8918
Facsimile: (417) 624-8920
www.niobrara.com
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Summary of Contents for Allen-Bradley DF1
- Page 1 MUCM DF1 Application Manual MUCM DF1 Installation and Programming Manual This Manual describes the MUCM application for interfacing Allen-Bradley DF1 devices to a master of another protocol. Effective: 04 September 2002 Niobrara Research & Development Corporation P.O. Box 3418 Joplin, MO 64803 USA...
- Page 2 Modicon, TSX Momentum Automation, Modbus, Modbus Plus are registered trademarks of Schneider Automation. Helm Loadgard Serial Interface is a trademark of Helm Instrument Company, Inc. Allen-Bradley, A-B, DF1, and Data Highway are trademarks of Allen-Bradley Company. Subject to change without notice. © Niobrara Research & Development Corporation 2001,2002. All Rights Reserved.
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Page 3: Table Of Contents
Figure 2-2 RS-485 SY/MAX Port (9-pin) (MU7 Cable) .............. 8 Figure 2-3 MUCM Layout ......................9 Figure 2-4 MUCM to RS-232 PC DCE Port (9-pin) (MU1 Cable) ..........9 Figure 2-5 MUCM RS-422 to DF1/Data Highway Convertor RS-422 ........10... - Page 4 Figure 4-1 Modbus Plus Example ....................14 Figure 4-2 Modbus TCP Example ....................15 Figure 4-3 MUCM RS-422 to Helm Loadgard Serial Interface ........... 16 Figure 4-4 RNIM Example ......................17 Tables Table 4-1 Server Index Table For EPE5-TCP ................15 Table 5-1 Module Lights ......................
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Page 5: Introduction
Port 1 of the MUCM is to be connected to the master to provide the interface to the DF1 device. Port 2 is the DF1 port, and can be connected point to point with the DF1 device or, optionally, could be connected to a daisy chain of DF1 half duplex devices using RS-232 to RS-485 convertors. - Page 6 6 Introduction MUCM DF1 Application Manual...
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Page 7: Installation
Mount the MUCM in an appropriate location on a DIN rail or in a cabinet. Software Installation The application files for the MUCM are included in the DF1.ZIP file. This file must be unzipped using an application like PKUNZIP.EXE. A copy of PKUNZIP is in- cluded on the standard NR&D software disk and is also available at... -
Page 8: Figure 2-1 Mucm To Rs-232 Dte Port (9-Pin) (Mu2 Cable)
RS-485 SY/MAX Port (9-pin) (MU7 Cable) The master must be configured to match the serial settings of the MUCM Port 1. The supported baud rates by both units are 1200, 2400, 9600, and 19200. 19200 baud is the default. 8 Installation MUCM DF1 Application Manual... -
Page 9: Port 2 To The Personal Computer
Move the RUN/LOAD switch on the module to LOAD. Only the Pwr light should be on. Connect the PC to MUCM Port 1 with an MU1 cable. From the command line enter > fwload mucm.fwl com1: MUCM DF1 Application Manual Installation 9... -
Page 10: Df1 To Mucm Port 2
Place Switch 2 in the HALT position until ready to configure the MUCM. DF1 to MUCM Port 2 After the software has been installed into the MUCM, Port 2 becomes the DF1 port. The connection for the MUCM to the Allen-Bradley DF1 to Data Highway convertor should be accomplished with the Niobrara SC902-ST if the convertor’s port is set to... -
Page 11: Master Protocol To Df1 Bridge
The master will transmit a normal query, and the MUCM will transparently pass the slave ID to the DF1 device. The exception to this is if the user forces the route to always be 1. This option only works with RNIM. On the DF1 side, the MUCM will use a predefined source ID that can be configured from the con- figuration page. -
Page 12: Df1 Configuration
Revisions of this application dated 20 August or later have the ability to automatically read or write registers in a DF1 device. The setup is located in the options for the DF1 port. The user can select the entry number, local and remote registers, register count, direction, and slave address. -
Page 13: Examples
The MUCM will receive the Modbus RTU message at port 1 for device 1, translate the message to DF1, and route it out port 2 to Node ID 1. When the DF1 device re- sponds to the query, the MUCM will receive the response at port 2, convert the mes- sage to Modbus RTU, and route back out port 1. -
Page 14: Figure 4-1 Modbus Plus Example
RS-232 RS-485 Run/Load Tx Rx GND RTS CTS Tx+ Tx- Rx+ Rx- GND MU1 Cable MU2 Cable MB+ = 35 Port 2 DF 1 Bridge/MUX Node ID = 1 Figure 4-1 Modbus Plus Example 14 Examples MUCM DF1 Application Manual... -
Page 15: Example 2
Figure 4-2 displays an example of how the MUCM could be used to put data from a DF1 device onto Modbus TCP. This example allows the SMS computer to see the data in the DF1 device connected to port 2 of the MUCM. The EPE5’s Port 1 must be set to Modbus Gate protocol, and an MU7 cable should be used between the EPE5 and the MUCM. -
Page 16: Example 3
The 650 generates a TREAD or TWRITE with a route of 100,0,53,153. The MUCM is set for RNIM address 53, and will translate the message to a DF1 unprotected read or write at address 153. The MUCM may also translate it to address 1 if the forced route option is set. -
Page 17: Figure 4-4 Rnim Example
Figure 4-4 RNIM Example Example 5 Example 5 is a continuation of example 4, but with a second DF1 device daisy chained to the the MUCM through a modem. In this configuration, it is necessary for harware handshaking. This is what the Pass-thru mode is used for. Figure 4-5 shows this example. - Page 18 Niobrara R&D Corporation 9-30 VDC or AC RS-232 RS-485 m R H Run/Load Tx Rx GND RTS CTS Tx+ Tx- Rx+ Rx- GND MUCM Pass Thru Mode MU4 Cable Figure 4-5 Pass Thru Example 18 Examples MUCM DF1 Application Manual...
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Page 19: Troubleshooting
APP1 program is running is shown in Table 5-2. Table 5-2 User Light Definitions Light Meaning Lights when a DF1 read is sent Lights when a DF1 write is sent Lights when application is in config mode. Lights when application is in config mode. MUCM DF1 Application Manual...
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