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Watlow 982 Ramping Controller (Modbus RTU protocol) (UWM)
OPC Server Data Sheet
| Devices Supported: |
Watlow 982 Ramping Controller |
| Device
Manufacturer: |
Watlow Controls, 1241 Bundy Blvd., Winona, Minnesota
55987-5580. Tel: (507) 454-5300 FAX: (507) 452-4507. |
| Profile Name: |
WAT982.PRO |
| Profile Built For: |
UOS |
| Platform: |
Windows NT4.0 / 2000 / XP |
| Interface Type: |
Serial: RS-485 |
| Max Devices
Supported: |
32 |
| Protocol: |
Modbus RTU |
| Comment: |
UWM is comprised of the Universal OPC
Server (UOS) for Serial and TCP/IP Devices and the WAT982.PRO device
profile. The UWM mnemonic is used to identify this unique combination. UOS will also
support many other serial or TCP/IP device profiles. Please refer to our web site for the
current list. |
|
UOS is a stand-alone OPC Server that can be used with any OPC
compliant Client such as Intellution’s FIX® or FIX Dynamics® or
OA’s Enterprise Automation software. UOS has many advanced features like: DataView,
DataScope, Serial and TCP/IP communications support, and multiple "different"
device support. Please refer to our web site for more information on UOS capabilities. |
| Contact: |
Dimension Software, Inc.
1536 St. Clair Road, Taylorsville, NC 28681, USA
Voice: (828) 635-7189, Fax: (828) 625-5319,
E-Mail:  ,
Web: http://dimension-software.com |
| References: |
UOS (Universal OPC Server) Electronic
Documentation |
| |
|
Introduction
|
| This document provides general information on the device commands supported by UOS and
the WAT982.PRO profile. If you have installed UOS, you should also review the sections
titled About the I/O Driver, How Do I…, Setting up The I/O Driver, and
Using the PowerTool in the UOS electronic documentation. To get there, click on Help
and Help Topics on the PowerTool menu bar. The PowerTool is a client application
with a graphical user interface that accesses the UOS OPC Server and lets you view and
modify communications channel, device, and datablock properties. |
| Device
Manufacturer: |
B & B Electronics |
| Interface: |
RS-232 to RS-485 converter was used during testing. |
| |
| Device Commands Supported
|
| UWM supports the following Modbus commands: |
| |
| Modbus RTU Commands Supported |
| If the UWM Command Group is... |
The READ command is... |
And the WRITE command is... |
And the command group description is... |
| R_AO |
03 |
n/a |
Read Multiple Analog Output Reg |
| W_AO |
n/a |
06 |
Write Single Analog Output Reg |
| RW_AO |
03 |
06 |
R Multiple-Write Single AO Reg |
| RW_FILE_STEP |
03 |
10 |
Read and Write Profile Step (Hold Mode) |
| SELECT_FILE_STEP |
n/a |
10 |
Select the Profile File and Step (Hold Mode) |
| START_FILE |
n/a |
10 |
Start Program File (Run/Hold Mode) |
| MONITOR |
03 |
n/a |
Monitor Current Program Step (Run Mode) |
| Comment: |
The Monitor command reads the current program step that is being executed.
Since this command can only be used when the controller is in run mode, USD provides a
poll on demand function that allows the user to read the command group at his will. USD
also provides an Enable/Disable function that allows the user to enable or disable a poll
record. The SELECT_FILE_STEP command is used to select the controller file and step to
read or write. The START_FILE command starts a device program from any file and step the
user chooses. The RW_FILE_STEP is used to program the controller. Each of these commands
contains more than one variable that must be written to simultaneously. To accommodate
this, USD provides a write on demand function that allows the user to write to all the
variables and activate a "write trigger" that will send out all the variables at
once. |
| Protocol Type: |
Modbus RTU |
| Supported: |
N/A |
| Baud Rates: |
300, 600, 1200, 2400, 4800, 9600 |
| Data Bits: |
8 |
| Stop Bits: |
1 |
| Parity: |
NONE |
| Signal Conditioning
Name: |
Description: |
| NONE |
No Scaling |
| LIN (Unsigned) |
Scales 16-bit unsigned values to the database block's EGU
range. |
| LIN (Signed) |
Scales 16-bit signed values to the database block's EGU
range. |
| 3BCD |
Scales 3-digit Binary Coded Decimal values to the database
block's EGU range. |
| 4BCD |
Scales 4-digit Binary Coded Decimal values to the database
block's EGU range. |
| 8BN |
Scales 8-bit binary values to the database block's EGU
range. Ignores the most significant byte. No Alarming on Out of Range. |
| 8AL |
Scales 8-bit binary values to the database block's EGU
range. Ignores the most significant byte. Alarming on Out of Range. |
| 12BN |
Scales 12-bit binary values to the database block's EGU
range. Ignores the most significant nibble (4-bits). No Alarming on Out of
Range. |
| 12AL |
Scales 12-bit binary values to the database block's EGU
range. Ignores the most significant nibble (4-bits). Alarming on Out of
Range. |
| 13BN |
Scales 13-bit binary values to the database block's EGU
range. Ignores the most significant 3 bits. No Alarming on Out of Range. |
| 13AL |
Scales 13-bit binary values to the database block's EGU
range. Ignores the most significant 3 bits. Alarming on Out of Range. |
| 15BN |
Scales 15-bit binary values to the database block's EGU
range. Ignores the most significant bit. No Alarming on Out of Range. |
| 15AL |
Scales 15-bit binary values to the database block's EGU
range. Ignores the most significant bit. Alarming on Out of Range. |
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© 2011 Dimension Software, Inc. All Rights Reserved.
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